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1. Stabilizer Codes with Exotic Local-dimensions

Author: Gunderman, Lane G. and Gunderman, Lane G.
Abstract: Traditional stabilizer codes operate over prime power local-dimensions. In this work we extend the stabilizer formalism using the local-dimension-invariant setting to import stabilizer codes from these standard local-dimensions to other cases. In particular, we show that any traditional stabilizer code can be used for analog continuous-variable codes, and consider restrictions in phase space and discretized phase space. This puts this framework on an equivalent footing as traditional stabilizer codes. Following this, using extensions of prior ideas, we show that a stabilizer code originally designed with a finite field local-dimension can be transformed into a code with the same $n$, $k$, and $d$ parameters for any integral domain. This is of theoretical interest and can be of use for systems whose local-dimension is better described by mathematical rings, which permits the use of traditional stabilizer codes for protecting their information as well., Comment: 23 pages, 3 figures
Published: 2023
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2. Recoil imaging for dark matter, neutrinos, and physics beyond the Standard Model

Author: O'Hare, C. A. J., Loomba, D., Altenmüller, K., Álvarez-Pol, H., Amaro, F. D., Araújo, H. M., Sierra, D. Aristizabal, Asaadi, J., Attié, D., Aune, S., Awe, C., Ayyad, Y., Baracchini, E., Barbeau, P., Battat, J. B. R., Bell, N. F., Biasuzzi, B., Bignell, L. J., Boehm, C., Bolognino, I., Brunbauer, F. M., Caamaño, M., Cabo, C., Caratelli, D., Carmona, J. M., Castel, J. F., Cebrián, S., Cogollos, C., Collison, D., Costa, E., Dafni, T., Dastgiri, F., Deaconu, C., De Romeri, V., Desch, K., Dho, G., Di Giambattista, F., Díez-Ibáñez, D., D'Imperio, G., Dutta, B., Eldridge, C., Elliott, S. R., Ezeribe, A. C., Fava, A., Felkl, T., Fernández-Domínguez, B., Ribas, E. Ferrer, Flöthner, K. J., Froehlich, M., Galán, J., Galindo, J., García, F., Pascual, J. A. García, Gelli, B. P., Ghrear, M., Giomataris, Y., Gnanvo, K., Gramellini, E., Di Cortona, G. Grilli, Hall-Wilton, R., Harton, J., Hedges, S., Higashino, S., Hill, G., Holanda, P. C., Ikeda, T., Irastorza, I. G., Jackson, P., Janssens, D., Jones, B., Kaminski, J., Katsioulas, I., Kelly, K., Kemmerich, N., Kemp, E., Korandla, H. B., Kraus, H., Lackner, A., Lane, G. J., Lewis, P. M., Lisowska, M., Luzón, G., Lynch, W. A., Maccarrone, G., Mack, K. J., Majewski, P. A., Mano, R. D. P., Margalejo, C., Markoff, D., Marley, T., Marques, D. J. G., Massarczyk, R., Mazzitelli, G., McCabe, C., McKie, L. J., McLean, A. G., McNamara, P. C., Mei, Y., Messina, A., Mills, A. F., Mirallas, H., Miuchi, K., Monteiro, C. M. B., Mosbech, M. R., Muller, H., da Luz, H. Natal, Nakamura, K. D., Natochii, A., Neep, T., Newstead, J. L., Nikolopoulos, K., Obis, L., Oliveri, E., Orlandini, G., de Solórzano, A. Ortiz, von Oy, J., Papaevangelou, T., Pérez, O., Perez-Gonzalez, Y. F., Pfeiffer, D., Phan, N. S., Piacentini, S., Olloqui, E. Picatoste, Pinci, D., Popescu, S., Prajapati, A., Queiroz, F. S., Raaf, J. L., Resnati, F., Ropelewski, L., Roque, R. C., Ruiz-Choliz, E., Rusu, A., Ruz, J., Samarati, J., Santos, E. M., Santos, J. M. F. dos, Sauli, F., Scharenberg, L., Schiffer, T., Schmidt, S., Scholberg, K., Schott, M., Schueler, J., Segui, L., Sekiya, H., Sengupta, D., Slavkovska, Z., Snowden-Ifft, D., Soffitta, P., van Stenis, M., Spooner, N. J. C., Strigari, L., Stuchbery, A. E., Sun, X., Torelli, S., Tilly, E. G., Thomas, A. W., Thorpe, T. N., Urquijo, P., Utrobičić, A., Vahsen, S. E., Veenhof, R., Vogel, J. K., Williams, A. G., Wood, M. H., Zettlemoyer, J., O'Hare, C. A. J., Loomba, D., Altenmüller, K., Álvarez-Pol, H., Amaro, F. D., Araújo, H. M., Sierra, D. Aristizabal, Asaadi, J., Attié, D., Aune, S., Awe, C., Ayyad, Y., Baracchini, E., Barbeau, P., Battat, J. B. R., Bell, N. F., Biasuzzi, B., Bignell, L. J., Boehm, C., Bolognino, I., Brunbauer, F. M., Caamaño, M., Cabo, C., Caratelli, D., Carmona, J. M., Castel, J. F., Cebrián, S., Cogollos, C., Collison, D., Costa, E., Dafni, T., Dastgiri, F., Deaconu, C., De Romeri, V., Desch, K., Dho, G., Di Giambattista, F., Díez-Ibáñez, D., D'Imperio, G., Dutta, B., Eldridge, C., Elliott, S. R., Ezeribe, A. C., Fava, A., Felkl, T., Fernández-Domínguez, B., Ribas, E. Ferrer, Flöthner, K. J., Froehlich, M., Galán, J., Galindo, J., García, F., Pascual, J. A. García, Gelli, B. P., Ghrear, M., Giomataris, Y., Gnanvo, K., Gramellini, E., Di Cortona, G. Grilli, Hall-Wilton, R., Harton, J., Hedges, S., Higashino, S., Hill, G., Holanda, P. C., Ikeda, T., Irastorza, I. G., Jackson, P., Janssens, D., Jones, B., Kaminski, J., Katsioulas, I., Kelly, K., Kemmerich, N., Kemp, E., Korandla, H. B., Kraus, H., Lackner, A., Lane, G. J., Lewis, P. M., Lisowska, M., Luzón, G., Lynch, W. A., Maccarrone, G., Mack, K. J., Majewski, P. A., Mano, R. D. P., Margalejo, C., Markoff, D., Marley, T., Marques, D. J. G., Massarczyk, R., Mazzitelli, G., McCabe, C., McKie, L. J., McLean, A. G., McNamara, P. C., Mei, Y., Messina, A., Mills, A. F., Mirallas, H., Miuchi, K., Monteiro, C. M. B., Mosbech, M. R., Muller, H., da Luz, H. Natal, Nakamura, K. D., Natochii, A., Neep, T., Newstead, J. L., Nikolopoulos, K., Obis, L., Oliveri, E., Orlandini, G., de Solórzano, A. Ortiz, von Oy, J., Papaevangelou, T., Pérez, O., Perez-Gonzalez, Y. F., Pfeiffer, D., Phan, N. S., Piacentini, S., Olloqui, E. Picatoste, Pinci, D., Popescu, S., Prajapati, A., Queiroz, F. S., Raaf, J. L., Resnati, F., Ropelewski, L., Roque, R. C., Ruiz-Choliz, E., Rusu, A., Ruz, J., Samarati, J., Santos, E. M., Santos, J. M. F. dos, Sauli, F., Scharenberg, L., Schiffer, T., Schmidt, S., Scholberg, K., Schott, M., Schueler, J., Segui, L., Sekiya, H., Sengupta, D., Slavkovska, Z., Snowden-Ifft, D., Soffitta, P., van Stenis, M., Spooner, N. J. C., Strigari, L., Stuchbery, A. E., Sun, X., Torelli, S., Tilly, E. G., Thomas, A. W., Thorpe, T. N., Urquijo, P., Utrobičić, A., Vahsen, S. E., Veenhof, R., Vogel, J. K., Williams, A. G., Wood, M. H., and Zettlemoyer, J.
Abstract: Recoil imaging entails the detection of spatially resolved ionization tracks generated by particle interactions. This is a highly sought-after capability in many classes of detector, with broad applications across particle and astroparticle physics. However, at low energies, where ionization signatures are small in size, recoil imaging only seems to be a practical goal for micro-pattern gas detectors. This white paper outlines the physics case for recoil imaging, and puts forward a decadal plan to advance towards the directional detection of low-energy recoils with sensitivity and resolution close to fundamental performance limits. The science case covered includes: the discovery of dark matter into the neutrino fog, directional detection of sub-MeV solar neutrinos, the precision study of coherent-elastic neutrino-nucleus scattering, the detection of solar axions, the measurement of the Migdal effect, X-ray polarimetry, and several other applied physics goals. We also outline the R&D programs necessary to test concepts that are crucial to advance detector performance towards their fundamental limit: single primary electron sensitivity with full 3D spatial resolution at the $\sim$100 micron-scale. These advancements include: the use of negative ion drift, electron counting with high-definition electronic readout, time projection chambers with optical readout, and the possibility for nuclear recoil tracking in high-density gases such as argon. We also discuss the readout and electronics systems needed to scale-up such detectors to the ton-scale and beyond., Comment: 77 pages, 20 figures. Submitted to the Proceedings of the US Community Study on the Future of Particle Physics (Snowmass 2021)
Published: 2022

3. Recoil imaging for directional detection of dark matter, neutrinos, and physics beyond the Standard Model

Author: O'Hare, C. A. J., Loomba, D., Altenmüller, K., Álvarez-Pol, H., Amaro, F. D., Araújo, H. M., Sierra, D. Aristizabal, Asaadi, J., Attié, D., Aune, S., Awe, C., Ayyad, Y., Baracchini, E., Barbeau, P., Battat, J. B. R., Bell, N. F., Biasuzzi, B., Bignell, L. J., Boehm, C., Bolognino, I., Brunbauer, F. M., Caamaño, M., Cabo, C., Caratelli, D., Carmona, J. M., Castel, J. F., Cebrián, S., Cogollos, C., Collison, D., Costa, E., Dafni, T., Dastgiri, F., Deaconu, C., De Romeri, V., Desch, K., Dho, G., Di Giambattista, F., Díez-Ibáñez, D., D'Imperio, G., Dutta, B., Eldridge, C., Elliott, S. R., Ezeribe, A. C., Fava, A., Felkl, T., Fernández-Domínguez, B., Ribas, E. Ferrer, Flöthner, K. J., Froehlich, M., Galán, J., Galindo, J., García, F., Pascual, J. A. García, Gelli, B. P., Ghrear, M., Giomataris, Y., Gnanvo, K., Gramellini, E., Di Cortona, G. Grilli, Hall-Wilton, R., Harton, J., Hedges, S., Higashino, S., Hill, G., Holanda, P. C., Ikeda, T., Irastorza, I. G., Jackson, P., Janssens, D., Jones, B., Kaminski, J., Katsioulas, I., Kelly, K., Kemmerich, N., Kemp, E., Korandla, H. B., Kraus, H., Lackner, A., Lane, G. J., Lewis, P. M., Lisowska, M., Luzón, G., Lynch, W. A., Maccarrone, G., Mack, K. J., Majewski, P. A., Mano, R. D. P., Margalejo, C., Markoff, D., Marley, T., Marques, D. J. G., Massarczyk, R., Mazzitelli, G., McCabe, C., McKie, L. J., McLean, A. G., McNamara, P. C., Mei, Y., Messina, A., Mills, A. F., Mirallas, H., Miuchi, K., Monteiro, C. M. B., Mosbech, M. R., Muller, H., da Luz, H. Natal, Nakamura, K. D., Natochii, A., Neep, T., Newstead, J. L., Nikolopoulos, K., Obis, L., Oliveri, E., Orlandini, G., de Solórzano, A. Ortiz, von Oy, J., Papaevangelou, T., Pérez, O., Perez-Gonzalez, Y. F., Pfeiffer, D., Phan, N. S., Piacentini, S., Olloqui, E. Picatoste, Pinci, D., Popescu, S., Prajapati, A., Queiroz, F. S., Raaf, J. L., Resnati, F., Ropelewski, L., Roque, R. C., Ruiz-Choliz, E., Rusu, A., Ruz, J., Samarati, J., Santos, E. M., Santos, J. M. F. dos, Sauli, F., Scharenberg, L., Schiffer, T., Schmidt, S., Scholberg, K., Schott, M., Schueler, J., Segui, L., Sekiya, H., Sengupta, D., Slavkovska, Z., Snowden-Ifft, D., Soffitta, P., van Stenis, M., Spooner, N. J. C., Strigari, L., Stuchbery, A. E., Sun, X., Torelli, S., Tilly, E. G., Thomas, A. W., Thorpe, T. N., Urquijo, P., Utrobičić, A., Vahsen, S. E., Veenhof, R., Vogel, J. K., Williams, A. G., Wood, M. H., Zettlemoyer, J., O'Hare, C. A. J., Loomba, D., Altenmüller, K., Álvarez-Pol, H., Amaro, F. D., Araújo, H. M., Sierra, D. Aristizabal, Asaadi, J., Attié, D., Aune, S., Awe, C., Ayyad, Y., Baracchini, E., Barbeau, P., Battat, J. B. R., Bell, N. F., Biasuzzi, B., Bignell, L. J., Boehm, C., Bolognino, I., Brunbauer, F. M., Caamaño, M., Cabo, C., Caratelli, D., Carmona, J. M., Castel, J. F., Cebrián, S., Cogollos, C., Collison, D., Costa, E., Dafni, T., Dastgiri, F., Deaconu, C., De Romeri, V., Desch, K., Dho, G., Di Giambattista, F., Díez-Ibáñez, D., D'Imperio, G., Dutta, B., Eldridge, C., Elliott, S. R., Ezeribe, A. C., Fava, A., Felkl, T., Fernández-Domínguez, B., Ribas, E. Ferrer, Flöthner, K. J., Froehlich, M., Galán, J., Galindo, J., García, F., Pascual, J. A. García, Gelli, B. P., Ghrear, M., Giomataris, Y., Gnanvo, K., Gramellini, E., Di Cortona, G. Grilli, Hall-Wilton, R., Harton, J., Hedges, S., Higashino, S., Hill, G., Holanda, P. C., Ikeda, T., Irastorza, I. G., Jackson, P., Janssens, D., Jones, B., Kaminski, J., Katsioulas, I., Kelly, K., Kemmerich, N., Kemp, E., Korandla, H. B., Kraus, H., Lackner, A., Lane, G. J., Lewis, P. M., Lisowska, M., Luzón, G., Lynch, W. A., Maccarrone, G., Mack, K. J., Majewski, P. A., Mano, R. D. P., Margalejo, C., Markoff, D., Marley, T., Marques, D. J. G., Massarczyk, R., Mazzitelli, G., McCabe, C., McKie, L. J., McLean, A. G., McNamara, P. C., Mei, Y., Messina, A., Mills, A. F., Mirallas, H., Miuchi, K., Monteiro, C. M. B., Mosbech, M. R., Muller, H., da Luz, H. Natal, Nakamura, K. D., Natochii, A., Neep, T., Newstead, J. L., Nikolopoulos, K., Obis, L., Oliveri, E., Orlandini, G., de Solórzano, A. Ortiz, von Oy, J., Papaevangelou, T., Pérez, O., Perez-Gonzalez, Y. F., Pfeiffer, D., Phan, N. S., Piacentini, S., Olloqui, E. Picatoste, Pinci, D., Popescu, S., Prajapati, A., Queiroz, F. S., Raaf, J. L., Resnati, F., Ropelewski, L., Roque, R. C., Ruiz-Choliz, E., Rusu, A., Ruz, J., Samarati, J., Santos, E. M., Santos, J. M. F. dos, Sauli, F., Scharenberg, L., Schiffer, T., Schmidt, S., Scholberg, K., Schott, M., Schueler, J., Segui, L., Sekiya, H., Sengupta, D., Slavkovska, Z., Snowden-Ifft, D., Soffitta, P., van Stenis, M., Spooner, N. J. C., Strigari, L., Stuchbery, A. E., Sun, X., Torelli, S., Tilly, E. G., Thomas, A. W., Thorpe, T. N., Urquijo, P., Utrobičić, A., Vahsen, S. E., Veenhof, R., Vogel, J. K., Williams, A. G., Wood, M. H., and Zettlemoyer, J.
Abstract: Recoil imaging entails the detection of spatially resolved ionization tracks generated by particle interactions. This is a highly sought-after capability in many classes of detector, with broad applications across particle and astroparticle physics. However, at low energies, where ionization signatures are small in size, recoil imaging only seems to be a practical goal for micro-pattern gas detectors. This white paper outlines the physics case for recoil imaging, and puts forward a decadal plan to advance towards the directional detection of low-energy recoils with sensitivity and resolution close to fundamental performance limits. The science case covered includes: the discovery of dark matter into the neutrino fog, directional detection of sub-MeV solar neutrinos, the precision study of coherent-elastic neutrino-nucleus scattering, the detection of solar axions, the measurement of the Migdal effect, X-ray polarimetry, and several other applied physics goals. We also outline the R&D programs necessary to test concepts that are crucial to advance detector performance towards their fundamental limit: single primary electron sensitivity with full 3D spatial resolution at the $\sim$100 micron-scale. These advancements include: the use of negative ion drift, electron counting with high-definition electronic readout, time projection chambers with optical readout, and the possibility for nuclear recoil tracking in high-density gases such as argon. We also discuss the readout and electronics systems needed to scale-up such detectors to the ton-scale and beyond., Comment: 77 pages, 20 figures. Submitted to the Proceedings of the US Community Study on the Future of Particle Physics (Snowmass 2021)
Published: 2022

4. Recoil imaging for directional detection of dark matter, neutrinos, and physics beyond the Standard Model

Author: O'Hare, C. A. J., Loomba, D., Altenmüller, K., Álvarez-Pol, H., Amaro, F. D., Araújo, H. M., Sierra, D. Aristizabal, Asaadi, J., Attié, D., Aune, S., Awe, C., Ayyad, Y., Baracchini, E., Barbeau, P., Battat, J. B. R., Bell, N. F., Biasuzzi, B., Bignell, L. J., Boehm, C., Bolognino, I., Brunbauer, F. M., Caamaño, M., Cabo, C., Caratelli, D., Carmona, J. M., Castel, J. F., Cebrián, S., Cogollos, C., Collison, D., Costa, E., Dafni, T., Dastgiri, F., Deaconu, C., De Romeri, V., Desch, K., Dho, G., Di Giambattista, F., Díez-Ibáñez, D., D'Imperio, G., Dutta, B., Eldridge, C., Elliott, S. R., Ezeribe, A. C., Fava, A., Felkl, T., Fernández-Domínguez, B., Ribas, E. Ferrer, Flöthner, K. J., Froehlich, M., Galán, J., Galindo, J., García, F., Pascual, J. A. García, Gelli, B. P., Ghrear, M., Giomataris, Y., Gnanvo, K., Gramellini, E., Di Cortona, G. Grilli, Hall-Wilton, R., Harton, J., Hedges, S., Higashino, S., Hill, G., Holanda, P. C., Ikeda, T., Irastorza, I. G., Jackson, P., Janssens, D., Jones, B., Kaminski, J., Katsioulas, I., Kelly, K., Kemmerich, N., Kemp, E., Korandla, H. B., Kraus, H., Lackner, A., Lane, G. J., Lewis, P. M., Lisowska, M., Luzón, G., Lynch, W. A., Maccarrone, G., Mack, K. J., Majewski, P. A., Mano, R. D. P., Margalejo, C., Markoff, D., Marley, T., Marques, D. J. G., Massarczyk, R., Mazzitelli, G., McCabe, C., McKie, L. J., McLean, A. G., McNamara, P. C., Mei, Y., Messina, A., Mills, A. F., Mirallas, H., Miuchi, K., Monteiro, C. M. B., Mosbech, M. R., Muller, H., da Luz, H. Natal, Nakamura, K. D., Natochii, A., Neep, T., Newstead, J. L., Nikolopoulos, K., Obis, L., Oliveri, E., Orlandini, G., de Solórzano, A. Ortiz, von Oy, J., Papaevangelou, T., Pérez, O., Perez-Gonzalez, Y. F., Pfeiffer, D., Phan, N. S., Piacentini, S., Olloqui, E. Picatoste, Pinci, D., Popescu, S., Prajapati, A., Queiroz, F. S., Raaf, J. L., Resnati, F., Ropelewski, L., Roque, R. C., Ruiz-Choliz, E., Rusu, A., Ruz, J., Samarati, J., Santos, E. M., Santos, J. M. F. dos, Sauli, F., Scharenberg, L., Schiffer, T., Schmidt, S., Scholberg, K., Schott, M., Schueler, J., Segui, L., Sekiya, H., Sengupta, D., Slavkovska, Z., Snowden-Ifft, D., Soffitta, P., van Stenis, M., Spooner, N. J. C., Strigari, L., Stuchbery, A. E., Sun, X., Torelli, S., Tilly, E. G., Thomas, A. W., Thorpe, T. N., Urquijo, P., Utrobičić, A., Vahsen, S. E., Veenhof, R., Vogel, J. K., Williams, A. G., Wood, M. H., Zettlemoyer, J., O'Hare, C. A. J., Loomba, D., Altenmüller, K., Álvarez-Pol, H., Amaro, F. D., Araújo, H. M., Sierra, D. Aristizabal, Asaadi, J., Attié, D., Aune, S., Awe, C., Ayyad, Y., Baracchini, E., Barbeau, P., Battat, J. B. R., Bell, N. F., Biasuzzi, B., Bignell, L. J., Boehm, C., Bolognino, I., Brunbauer, F. M., Caamaño, M., Cabo, C., Caratelli, D., Carmona, J. M., Castel, J. F., Cebrián, S., Cogollos, C., Collison, D., Costa, E., Dafni, T., Dastgiri, F., Deaconu, C., De Romeri, V., Desch, K., Dho, G., Di Giambattista, F., Díez-Ibáñez, D., D'Imperio, G., Dutta, B., Eldridge, C., Elliott, S. R., Ezeribe, A. C., Fava, A., Felkl, T., Fernández-Domínguez, B., Ribas, E. Ferrer, Flöthner, K. J., Froehlich, M., Galán, J., Galindo, J., García, F., Pascual, J. A. García, Gelli, B. P., Ghrear, M., Giomataris, Y., Gnanvo, K., Gramellini, E., Di Cortona, G. Grilli, Hall-Wilton, R., Harton, J., Hedges, S., Higashino, S., Hill, G., Holanda, P. C., Ikeda, T., Irastorza, I. G., Jackson, P., Janssens, D., Jones, B., Kaminski, J., Katsioulas, I., Kelly, K., Kemmerich, N., Kemp, E., Korandla, H. B., Kraus, H., Lackner, A., Lane, G. J., Lewis, P. M., Lisowska, M., Luzón, G., Lynch, W. A., Maccarrone, G., Mack, K. J., Majewski, P. A., Mano, R. D. P., Margalejo, C., Markoff, D., Marley, T., Marques, D. J. G., Massarczyk, R., Mazzitelli, G., McCabe, C., McKie, L. J., McLean, A. G., McNamara, P. C., Mei, Y., Messina, A., Mills, A. F., Mirallas, H., Miuchi, K., Monteiro, C. M. B., Mosbech, M. R., Muller, H., da Luz, H. Natal, Nakamura, K. D., Natochii, A., Neep, T., Newstead, J. L., Nikolopoulos, K., Obis, L., Oliveri, E., Orlandini, G., de Solórzano, A. Ortiz, von Oy, J., Papaevangelou, T., Pérez, O., Perez-Gonzalez, Y. F., Pfeiffer, D., Phan, N. S., Piacentini, S., Olloqui, E. Picatoste, Pinci, D., Popescu, S., Prajapati, A., Queiroz, F. S., Raaf, J. L., Resnati, F., Ropelewski, L., Roque, R. C., Ruiz-Choliz, E., Rusu, A., Ruz, J., Samarati, J., Santos, E. M., Santos, J. M. F. dos, Sauli, F., Scharenberg, L., Schiffer, T., Schmidt, S., Scholberg, K., Schott, M., Schueler, J., Segui, L., Sekiya, H., Sengupta, D., Slavkovska, Z., Snowden-Ifft, D., Soffitta, P., van Stenis, M., Spooner, N. J. C., Strigari, L., Stuchbery, A. E., Sun, X., Torelli, S., Tilly, E. G., Thomas, A. W., Thorpe, T. N., Urquijo, P., Utrobičić, A., Vahsen, S. E., Veenhof, R., Vogel, J. K., Williams, A. G., Wood, M. H., and Zettlemoyer, J.
Abstract: Recoil imaging entails the detection of spatially resolved ionization tracks generated by particle interactions. This is a highly sought-after capability in many classes of detector, with broad applications across particle and astroparticle physics. However, at low energies, where ionization signatures are small in size, recoil imaging only seems to be a practical goal for micro-pattern gas detectors. This white paper outlines the physics case for recoil imaging, and puts forward a decadal plan to advance towards the directional detection of low-energy recoils with sensitivity and resolution close to fundamental performance limits. The science case covered includes: the discovery of dark matter into the neutrino fog, directional detection of sub-MeV solar neutrinos, the precision study of coherent-elastic neutrino-nucleus scattering, the detection of solar axions, the measurement of the Migdal effect, X-ray polarimetry, and several other applied physics goals. We also outline the R&D programs necessary to test concepts that are crucial to advance detector performance towards their fundamental limit: single primary electron sensitivity with full 3D spatial resolution at the $\sim$100 micron-scale. These advancements include: the use of negative ion drift, electron counting with high-definition electronic readout, time projection chambers with optical readout, and the possibility for nuclear recoil tracking in high-density gases such as argon. We also discuss the readout and electronics systems needed to scale-up such detectors to the ton-scale and beyond., Comment: 77 pages, 20 figures. Submitted to the Proceedings of the US Community Study on the Future of Particle Physics (Snowmass 2021)
Published: 2022

5. Cosmogenic activation of sodium iodide

Author: Saldanha, R., Thompson, W. G., Zhong, Y. Y., Bignell, L. J., Tsang, R. H. M., Hollick, S. J., Elliott, S. R., Lane, G. J., Maruyama, R. H., Yang, L., Saldanha, R., Thompson, W. G., Zhong, Y. Y., Bignell, L. J., Tsang, R. H. M., Hollick, S. J., Elliott, S. R., Lane, G. J., Maruyama, R. H., and Yang, L.
Abstract: The production of radioactive isotopes by interactions of cosmic-ray particles with sodium iodide (NaI) crystals can produce radioactive backgrounds in detectors used to search for rare events. Through controlled irradiation of NaI crystals with a neutron beam that matches the cosmic-ray neutron spectrum, followed by direct counting and fitting the resulting spectrum across a broad range of energies, we determined the integrated production rate of several long-lived radioisotopes. The measurements were then extrapolated to determine the sea-level cosmogenic neutron activation rate, including the first experimental determination of the tritium production rate: $(80 \pm 21)$ atoms/kg/day. These results will help constrain background estimates and determine the maximum time that NaI-based detectors can remain unshielded above ground before cosmogenic backgrounds impact the sensitivity of next-generation experiments., Comment: 20 pages, 15 figures, 7 tables
Published: 2022
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6. Recoil imaging for directional detection of dark matter, neutrinos, and physics beyond the Standard Model

Author: O'Hare, C. A. J., Loomba, D., Altenmüller, K., Álvarez-Pol, H., Amaro, F. D., Araújo, H. M., Sierra, D. Aristizabal, Asaadi, J., Attié, D., Aune, S., Awe, C., Ayyad, Y., Baracchini, E., Barbeau, P., Battat, J. B. R., Bell, N. F., Biasuzzi, B., Bignell, L. J., Boehm, C., Bolognino, I., Brunbauer, F. M., Caamaño, M., Cabo, C., Caratelli, D., Carmona, J. M., Castel, J. F., Cebrián, S., Cogollos, C., Collison, D., Costa, E., Dafni, T., Dastgiri, F., Deaconu, C., De Romeri, V., Desch, K., Dho, G., Di Giambattista, F., Díez-Ibáñez, D., D'Imperio, G., Dutta, B., Eldridge, C., Elliott, S. R., Ezeribe, A. C., Fava, A., Felkl, T., Fernández-Domínguez, B., Ribas, E. Ferrer, Flöthner, K. J., Froehlich, M., Galán, J., Galindo, J., García, F., Pascual, J. A. García, Gelli, B. P., Ghrear, M., Giomataris, Y., Gnanvo, K., Gramellini, E., Di Cortona, G. Grilli, Hall-Wilton, R., Harton, J., Hedges, S., Higashino, S., Hill, G., Holanda, P. C., Ikeda, T., Irastorza, I. G., Jackson, P., Janssens, D., Jones, B., Kaminski, J., Katsioulas, I., Kelly, K., Kemmerich, N., Kemp, E., Korandla, H. B., Kraus, H., Lackner, A., Lane, G. J., Lewis, P. M., Lisowska, M., Luzón, G., Lynch, W. A., Maccarrone, G., Mack, K. J., Majewski, P. A., Mano, R. D. P., Margalejo, C., Markoff, D., Marley, T., Marques, D. J. G., Massarczyk, R., Mazzitelli, G., McCabe, C., McKie, L. J., McLean, A. G., McNamara, P. C., Mei, Y., Messina, A., Mills, A. F., Mirallas, H., Miuchi, K., Monteiro, C. M. B., Mosbech, M. R., Muller, H., da Luz, H. Natal, Nakamura, K. D., Natochii, A., Neep, T., Newstead, J. L., Nikolopoulos, K., Obis, L., Oliveri, E., Orlandini, G., de Solórzano, A. Ortiz, von Oy, J., Papaevangelou, T., Pérez, O., Perez-Gonzalez, Y. F., Pfeiffer, D., Phan, N. S., Piacentini, S., Olloqui, E. Picatoste, Pinci, D., Popescu, S., Prajapati, A., Queiroz, F. S., Raaf, J. L., Resnati, F., Ropelewski, L., Roque, R. C., Ruiz-Choliz, E., Rusu, A., Ruz, J., Samarati, J., Santos, E. M., Santos, J. M. F. dos, Sauli, F., Scharenberg, L., Schiffer, T., Schmidt, S., Scholberg, K., Schott, M., Schueler, J., Segui, L., Sekiya, H., Sengupta, D., Slavkovska, Z., Snowden-Ifft, D., Soffitta, P., van Stenis, M., Spooner, N. J. C., Strigari, L., Stuchbery, A. E., Sun, X., Torelli, S., Tilly, E. G., Thomas, A. W., Thorpe, T. N., Urquijo, P., Utrobičić, A., Vahsen, S. E., Veenhof, R., Vogel, J. K., Williams, A. G., Wood, M. H., Zettlemoyer, J., O'Hare, C. A. J., Loomba, D., Altenmüller, K., Álvarez-Pol, H., Amaro, F. D., Araújo, H. M., Sierra, D. Aristizabal, Asaadi, J., Attié, D., Aune, S., Awe, C., Ayyad, Y., Baracchini, E., Barbeau, P., Battat, J. B. R., Bell, N. F., Biasuzzi, B., Bignell, L. J., Boehm, C., Bolognino, I., Brunbauer, F. M., Caamaño, M., Cabo, C., Caratelli, D., Carmona, J. M., Castel, J. F., Cebrián, S., Cogollos, C., Collison, D., Costa, E., Dafni, T., Dastgiri, F., Deaconu, C., De Romeri, V., Desch, K., Dho, G., Di Giambattista, F., Díez-Ibáñez, D., D'Imperio, G., Dutta, B., Eldridge, C., Elliott, S. R., Ezeribe, A. C., Fava, A., Felkl, T., Fernández-Domínguez, B., Ribas, E. Ferrer, Flöthner, K. J., Froehlich, M., Galán, J., Galindo, J., García, F., Pascual, J. A. García, Gelli, B. P., Ghrear, M., Giomataris, Y., Gnanvo, K., Gramellini, E., Di Cortona, G. Grilli, Hall-Wilton, R., Harton, J., Hedges, S., Higashino, S., Hill, G., Holanda, P. C., Ikeda, T., Irastorza, I. G., Jackson, P., Janssens, D., Jones, B., Kaminski, J., Katsioulas, I., Kelly, K., Kemmerich, N., Kemp, E., Korandla, H. B., Kraus, H., Lackner, A., Lane, G. J., Lewis, P. M., Lisowska, M., Luzón, G., Lynch, W. A., Maccarrone, G., Mack, K. J., Majewski, P. A., Mano, R. D. P., Margalejo, C., Markoff, D., Marley, T., Marques, D. J. G., Massarczyk, R., Mazzitelli, G., McCabe, C., McKie, L. J., McLean, A. G., McNamara, P. C., Mei, Y., Messina, A., Mills, A. F., Mirallas, H., Miuchi, K., Monteiro, C. M. B., Mosbech, M. R., Muller, H., da Luz, H. Natal, Nakamura, K. D., Natochii, A., Neep, T., Newstead, J. L., Nikolopoulos, K., Obis, L., Oliveri, E., Orlandini, G., de Solórzano, A. Ortiz, von Oy, J., Papaevangelou, T., Pérez, O., Perez-Gonzalez, Y. F., Pfeiffer, D., Phan, N. S., Piacentini, S., Olloqui, E. Picatoste, Pinci, D., Popescu, S., Prajapati, A., Queiroz, F. S., Raaf, J. L., Resnati, F., Ropelewski, L., Roque, R. C., Ruiz-Choliz, E., Rusu, A., Ruz, J., Samarati, J., Santos, E. M., Santos, J. M. F. dos, Sauli, F., Scharenberg, L., Schiffer, T., Schmidt, S., Scholberg, K., Schott, M., Schueler, J., Segui, L., Sekiya, H., Sengupta, D., Slavkovska, Z., Snowden-Ifft, D., Soffitta, P., van Stenis, M., Spooner, N. J. C., Strigari, L., Stuchbery, A. E., Sun, X., Torelli, S., Tilly, E. G., Thomas, A. W., Thorpe, T. N., Urquijo, P., Utrobičić, A., Vahsen, S. E., Veenhof, R., Vogel, J. K., Williams, A. G., Wood, M. H., and Zettlemoyer, J.
Abstract: Recoil imaging entails the detection of spatially resolved ionization tracks generated by particle interactions. This is a highly sought-after capability in many classes of detector, with broad applications across particle and astroparticle physics. However, at low energies, where ionization signatures are small in size, recoil imaging only seems to be a practical goal for micro-pattern gas detectors. This white paper outlines the physics case for recoil imaging, and puts forward a decadal plan to advance towards the directional detection of low-energy recoils with sensitivity and resolution close to fundamental performance limits. The science case covered includes: the discovery of dark matter into the neutrino fog, directional detection of sub-MeV solar neutrinos, the precision study of coherent-elastic neutrino-nucleus scattering, the detection of solar axions, the measurement of the Migdal effect, X-ray polarimetry, and several other applied physics goals. We also outline the R&D programs necessary to test concepts that are crucial to advance detector performance towards their fundamental limit: single primary electron sensitivity with full 3D spatial resolution at the $\sim$100 micron-scale. These advancements include: the use of negative ion drift, electron counting with high-definition electronic readout, time projection chambers with optical readout, and the possibility for nuclear recoil tracking in high-density gases such as argon. We also discuss the readout and electronics systems needed to scale-up such detectors to the ton-scale and beyond., Comment: 77 pages, 20 figures. Submitted to the Proceedings of the US Community Study on the Future of Particle Physics (Snowmass 2021)
Published: 2022

7. Impact of shell evolution on Gamow-Teller beta decay from a high-spin long-lived isomer in Ag-127

Author: Watanabe, H., Yuan, C. X., Lorusso, G., Nishimura, S., Xu, Z. Y., Sumikama, T., Soderstrom, P-A, Doornenbal, P., Browne, F., Gey, G., Jung, H. S., Taprogge, J., Vajta, Zs, Wang, H. K., Wu, J., Yagi, A., Baba, H., Benzoni, G., Chae, K. Y., Crespi, F. C. L., Fukuda, N., Gernhauser, R., Inabe, N., Isobe, T., Jungclaus, A., Kameda, D., Kim, G. D., Kim, Y. K., Kojouharov, I, Kondev, F. G., Kubo, T., Kurz, N., Kwon, Y. K., Lane, G. J., Li, Z., Moon, C-B, Montaner-Piza, A., Moschner, K., Naqvi, F., Niikura, M., Nishibata, H., Nishimura, D., Odahara, A., Orlandi, R., Patel, Z., Podolyak, Zs, Sakurai, H., Schaffner, H., Simpson, G. S., Steiger, K., Suzuki, H., Takeda, H., Wendt, A., Yoshinaga, K., Watanabe, H., Yuan, C. X., Lorusso, G., Nishimura, S., Xu, Z. Y., Sumikama, T., Soderstrom, P-A, Doornenbal, P., Browne, F., Gey, G., Jung, H. S., Taprogge, J., Vajta, Zs, Wang, H. K., Wu, J., Yagi, A., Baba, H., Benzoni, G., Chae, K. Y., Crespi, F. C. L., Fukuda, N., Gernhauser, R., Inabe, N., Isobe, T., Jungclaus, A., Kameda, D., Kim, G. D., Kim, Y. K., Kojouharov, I, Kondev, F. G., Kubo, T., Kurz, N., Kwon, Y. K., Lane, G. J., Li, Z., Moon, C-B, Montaner-Piza, A., Moschner, K., Naqvi, F., Niikura, M., Nishibata, H., Nishimura, D., Odahara, A., Orlandi, R., Patel, Z., Podolyak, Zs, Sakurai, H., Schaffner, H., Simpson, G. S., Steiger, K., Suzuki, H., Takeda, H., Wendt, A., and Yoshinaga, K.
Abstract: The change of the shell structure in atomic nuclei, so-called nuclear shell evolution, occurs due to changes of major configurations through particle-hole excitations inside one nucleus, as well as due to variation of the number of constituent protons or neutrons. We have investigated how the shell evolution affects Gamow-Teller (GT) transitions that dominate the beta decay in the region below Sn-132 using the newly obtained experimental data on a long-lived isomer in Ag-127. The T-1/2 = 67.5(9) ms isomer has been identified with a spin and parity of (27/2(+)) at an excitation energy of 1942(-20)(+14) keV, and found to decay via an internal transition of an E3 character, which competes with the dominant beta-decay branches towards the high-spin states in Cd-127. The underlying mechanism of a strong GT transition from the Ag-127 isomer is discussed in terms of configuration-dependent optimization of the effective single-particle energies in the framework of a shell-model approach. (C) 2021 The Authors. Published by Elsevier B.V.
Published: 2021

8. Impact of shell evolution on Gamow-Teller beta decay from a high-spin long-lived isomer in Ag-127

Author: Watanabe, H., Yuan, C. X., Lorusso, G., Nishimura, S., Xu, Z. Y., Sumikama, T., Soderstrom, P-A, Doornenbal, P., Browne, F., Gey, G., Jung, H. S., Taprogge, J., Vajta, Zs, Wang, H. K., Wu, J., Yagi, A., Baba, H., Benzoni, G., Chae, K. Y., Crespi, F. C. L., Fukuda, N., Gernhauser, R., Inabe, N., Isobe, T., Jungclaus, A., Kameda, D., Kim, G. D., Kim, Y. K., Kojouharov, I, Kondev, F. G., Kubo, T., Kurz, N., Kwon, Y. K., Lane, G. J., Li, Z., Moon, C-B, Montaner-Piza, A., Moschner, K., Naqvi, F., Niikura, M., Nishibata, H., Nishimura, D., Odahara, A., Orlandi, R., Patel, Z., Podolyak, Zs, Sakurai, H., Schaffner, H., Simpson, G. S., Steiger, K., Suzuki, H., Takeda, H., Wendt, A., Yoshinaga, K., Watanabe, H., Yuan, C. X., Lorusso, G., Nishimura, S., Xu, Z. Y., Sumikama, T., Soderstrom, P-A, Doornenbal, P., Browne, F., Gey, G., Jung, H. S., Taprogge, J., Vajta, Zs, Wang, H. K., Wu, J., Yagi, A., Baba, H., Benzoni, G., Chae, K. Y., Crespi, F. C. L., Fukuda, N., Gernhauser, R., Inabe, N., Isobe, T., Jungclaus, A., Kameda, D., Kim, G. D., Kim, Y. K., Kojouharov, I, Kondev, F. G., Kubo, T., Kurz, N., Kwon, Y. K., Lane, G. J., Li, Z., Moon, C-B, Montaner-Piza, A., Moschner, K., Naqvi, F., Niikura, M., Nishibata, H., Nishimura, D., Odahara, A., Orlandi, R., Patel, Z., Podolyak, Zs, Sakurai, H., Schaffner, H., Simpson, G. S., Steiger, K., Suzuki, H., Takeda, H., Wendt, A., and Yoshinaga, K.
Abstract: The change of the shell structure in atomic nuclei, so-called nuclear shell evolution, occurs due to changes of major configurations through particle-hole excitations inside one nucleus, as well as due to variation of the number of constituent protons or neutrons. We have investigated how the shell evolution affects Gamow-Teller (GT) transitions that dominate the beta decay in the region below Sn-132 using the newly obtained experimental data on a long-lived isomer in Ag-127. The T-1/2 = 67.5(9) ms isomer has been identified with a spin and parity of (27/2(+)) at an excitation energy of 1942(-20)(+14) keV, and found to decay via an internal transition of an E3 character, which competes with the dominant beta-decay branches towards the high-spin states in Cd-127. The underlying mechanism of a strong GT transition from the Ag-127 isomer is discussed in terms of configuration-dependent optimization of the effective single-particle energies in the framework of a shell-model approach. (C) 2021 The Authors. Published by Elsevier B.V.
Published: 2021

9. New isomers in Pd-125(79) and Pd-127(81): Competing proton and neutron excitations in neutron-rich palladium nuclides towards the N=82 shell closure

Author: Watanabe, H., Wang, H. K., Lorusso, G., Nishimura, S., Xu, Z. Y., Sumikama, T., Soderstrom, P. -A., Doornenbal, P., Browne, F., Gey, G., Jung, H. S., Taprogge, J., Vajta, Zs., Wu, J., Yagi, A., Baba, H., Benzoni, G., Chae, K. Y., Crespi, F. C. L., Fukuda, N., Gernhauser, R., Inabe, N., Isobe, T., Jungclaus, A., Kameda, D., Kim, G. D., Kim, Y. K., Kojouharov, I., Kondev, F. G., Kubo, T., Kurz, N., Kwon, Y. K., Lane, G. J., Lin, Z., Moon, C. -B., Montaner-Piza, A., Moschner, K., Naqvi, F., Niikura, M., Nishibata, H., Nishimura, D., Odahara, A., Orlandi, R., Patel, Z., Podolyak, Zs., Sakurai, H., Schaffner, H., Simpson, G. S., Steiger, K., Sun, Y., Suzuki, H., Takeda, H., Wendt, A., Yoshinaga, K., Watanabe, H., Wang, H. K., Lorusso, G., Nishimura, S., Xu, Z. Y., Sumikama, T., Soderstrom, P. -A., Doornenbal, P., Browne, F., Gey, G., Jung, H. S., Taprogge, J., Vajta, Zs., Wu, J., Yagi, A., Baba, H., Benzoni, G., Chae, K. Y., Crespi, F. C. L., Fukuda, N., Gernhauser, R., Inabe, N., Isobe, T., Jungclaus, A., Kameda, D., Kim, G. D., Kim, Y. K., Kojouharov, I., Kondev, F. G., Kubo, T., Kurz, N., Kwon, Y. K., Lane, G. J., Lin, Z., Moon, C. -B., Montaner-Piza, A., Moschner, K., Naqvi, F., Niikura, M., Nishibata, H., Nishimura, D., Odahara, A., Orlandi, R., Patel, Z., Podolyak, Zs., Sakurai, H., Schaffner, H., Simpson, G. S., Steiger, K., Sun, Y., Suzuki, H., Takeda, H., Wendt, A., and Yoshinaga, K.
Abstract: The neutron-rich isotopes of palladium have attracted considerable interest in terms of the evolution of the N = 82 neutron shell closure and its influence on the r-process nucleosynthesis. In this Letter, we present the first spectroscopic information on the excited states in Pd-125(79) and Pd-127(81) studied using the EURICA gamma-ray spectrometer, following production via in-flight fission of a high-intensity U-238 beam at the RIBF facility. New isomeric states with half-lives of 144(4) ns and 39(6) mu s have been assigned spins and parities of (23/2(+)) and (19/2(+)) in Pd-125 and Pd-127, respectively. The observed level properties are compared to a shell-model calculation, suggesting the competition between proton excitations and neutron excitations in the proton-hole and neutron-hole systems in the vicinity of the doubly magic nucleus Sn-132. (C) 2019 The Author(s). Published by Elsevier B.V.
Published: 2019

10. Proton Shell Evolution below Sn-132: First Measurement of Low-Lying beta-Emitting Isomers in Ag-123,Ag-325

Author: Chen, Z. Q., Li, Z. H., Hua, H., Watanabe, H., Yuan, C. X., Zhang, S. Q., Lorusso, G., Nishimura, S., Baba, H., Browne, F., Benzoni, G., Chae, K. Y., Crespi, F. C. L., Doornenbal, P., Fukuda, N., Gey, G., Gernhaeuser, R., Inabe, N., Isobe, T., Jiang, D. X., Jungclaus, A., Jung, H. S., Jin, Y., Kameda, D., Kim, G. D., Kim, Y. K., Kojouharov, I., Kondev, F. G., Kubo, T., Kurz, N., Kwon, Y. K., Li, X. Q., Lou, J. L., Lane, G. J., Li, C. G., Luo, D. W., Montaner-Piza, A., Moschner, K., Niu, C. Y., Naqvi, F., Niikura, M., Nishibata, H., Odahara, A., Orlandi, R., Patel, Z., Podolyak, Zs., Sumikama, T., Soderstrom, P. -A., Sakurai, H., Schaffner, H., Simpson, G. S., Steiger, K., Suzuki, H., Taprogge, J., Takeda, H., Vajta, Zs., Wang, H. K., Wu, J., Wendt, A., Wang, C. G., Wu, H. Y., Wang, X., Wu, C. G., Xu, C., Xu, Z. Y., Yagi, A., Ye, Y. L., Yoshinaga, K., Chen, Z. Q., Li, Z. H., Hua, H., Watanabe, H., Yuan, C. X., Zhang, S. Q., Lorusso, G., Nishimura, S., Baba, H., Browne, F., Benzoni, G., Chae, K. Y., Crespi, F. C. L., Doornenbal, P., Fukuda, N., Gey, G., Gernhaeuser, R., Inabe, N., Isobe, T., Jiang, D. X., Jungclaus, A., Jung, H. S., Jin, Y., Kameda, D., Kim, G. D., Kim, Y. K., Kojouharov, I., Kondev, F. G., Kubo, T., Kurz, N., Kwon, Y. K., Li, X. Q., Lou, J. L., Lane, G. J., Li, C. G., Luo, D. W., Montaner-Piza, A., Moschner, K., Niu, C. Y., Naqvi, F., Niikura, M., Nishibata, H., Odahara, A., Orlandi, R., Patel, Z., Podolyak, Zs., Sumikama, T., Soderstrom, P. -A., Sakurai, H., Schaffner, H., Simpson, G. S., Steiger, K., Suzuki, H., Taprogge, J., Takeda, H., Vajta, Zs., Wang, H. K., Wu, J., Wendt, A., Wang, C. G., Wu, H. Y., Wang, X., Wu, C. G., Xu, C., Xu, Z. Y., Yagi, A., Ye, Y. L., and Yoshinaga, K.
Abstract: The beta-delayed gamma-ray spectroscopy of neutron-rich Ag-123,Ag-325 isotopes is investigated at the Radioactive Isotope Beam Factory of RIKEN, and the long-predicted 1/2(-) beta-emitting isomers in Ag-123,Ag-325 are identified for the first time. With the new experimental results, the systematic trend of energy spacing between the lowest 9/2(+) and 1/2(-) levels is extended in Ag isotopes up to N = 78, providing a clear signal for the reduction of the Z = 40 subshell gap in Ag towards N = 82. Shell-model calculations with the state-of-the-art V-MU plus M3Y spin-orbit interaction give a satisfactory description of the low-lying states in Ag-123,Ag-325. The tensor force is found to play a crucial role in the evolution of the size of the Z = 40 subshell gap. The observed inversion of the single-particle levels around Ag-123 can be well interpreted in terms of the monopole shift of the pi 1g(9/2) orbitals mainly caused by the increasing occupation of nu 1h(11/2) orbitals.
Published: 2019

11. Proton Shell Evolution below Sn-132: First Measurement of Low-Lying beta-Emitting Isomers in Ag-123,Ag-325

Author: Chen, Z. Q., Li, Z. H., Hua, H., Watanabe, H., Yuan, C. X., Zhang, S. Q., Lorusso, G., Nishimura, S., Baba, H., Browne, F., Benzoni, G., Chae, K. Y., Crespi, F. C. L., Doornenbal, P., Fukuda, N., Gey, G., Gernhaeuser, R., Inabe, N., Isobe, T., Jiang, D. X., Jungclaus, A., Jung, H. S., Jin, Y., Kameda, D., Kim, G. D., Kim, Y. K., Kojouharov, I., Kondev, F. G., Kubo, T., Kurz, N., Kwon, Y. K., Li, X. Q., Lou, J. L., Lane, G. J., Li, C. G., Luo, D. W., Montaner-Piza, A., Moschner, K., Niu, C. Y., Naqvi, F., Niikura, M., Nishibata, H., Odahara, A., Orlandi, R., Patel, Z., Podolyak, Zs., Sumikama, T., Soderstrom, P. -A., Sakurai, H., Schaffner, H., Simpson, G. S., Steiger, K., Suzuki, H., Taprogge, J., Takeda, H., Vajta, Zs., Wang, H. K., Wu, J., Wendt, A., Wang, C. G., Wu, H. Y., Wang, X., Wu, C. G., Xu, C., Xu, Z. Y., Yagi, A., Ye, Y. L., Yoshinaga, K., Chen, Z. Q., Li, Z. H., Hua, H., Watanabe, H., Yuan, C. X., Zhang, S. Q., Lorusso, G., Nishimura, S., Baba, H., Browne, F., Benzoni, G., Chae, K. Y., Crespi, F. C. L., Doornenbal, P., Fukuda, N., Gey, G., Gernhaeuser, R., Inabe, N., Isobe, T., Jiang, D. X., Jungclaus, A., Jung, H. S., Jin, Y., Kameda, D., Kim, G. D., Kim, Y. K., Kojouharov, I., Kondev, F. G., Kubo, T., Kurz, N., Kwon, Y. K., Li, X. Q., Lou, J. L., Lane, G. J., Li, C. G., Luo, D. W., Montaner-Piza, A., Moschner, K., Niu, C. Y., Naqvi, F., Niikura, M., Nishibata, H., Odahara, A., Orlandi, R., Patel, Z., Podolyak, Zs., Sumikama, T., Soderstrom, P. -A., Sakurai, H., Schaffner, H., Simpson, G. S., Steiger, K., Suzuki, H., Taprogge, J., Takeda, H., Vajta, Zs., Wang, H. K., Wu, J., Wendt, A., Wang, C. G., Wu, H. Y., Wang, X., Wu, C. G., Xu, C., Xu, Z. Y., Yagi, A., Ye, Y. L., and Yoshinaga, K.
Abstract: The beta-delayed gamma-ray spectroscopy of neutron-rich Ag-123,Ag-325 isotopes is investigated at the Radioactive Isotope Beam Factory of RIKEN, and the long-predicted 1/2(-) beta-emitting isomers in Ag-123,Ag-325 are identified for the first time. With the new experimental results, the systematic trend of energy spacing between the lowest 9/2(+) and 1/2(-) levels is extended in Ag isotopes up to N = 78, providing a clear signal for the reduction of the Z = 40 subshell gap in Ag towards N = 82. Shell-model calculations with the state-of-the-art V-MU plus M3Y spin-orbit interaction give a satisfactory description of the low-lying states in Ag-123,Ag-325. The tensor force is found to play a crucial role in the evolution of the size of the Z = 40 subshell gap. The observed inversion of the single-particle levels around Ag-123 can be well interpreted in terms of the monopole shift of the pi 1g(9/2) orbitals mainly caused by the increasing occupation of nu 1h(11/2) orbitals.
Published: 2019

12. New isomers in Pd-125(79) and Pd-127(81): Competing proton and neutron excitations in neutron-rich palladium nuclides towards the N=82 shell closure

Author: Watanabe, H., Wang, H. K., Lorusso, G., Nishimura, S., Xu, Z. Y., Sumikama, T., Soderstrom, P. -A., Doornenbal, P., Browne, F., Gey, G., Jung, H. S., Taprogge, J., Vajta, Zs., Wu, J., Yagi, A., Baba, H., Benzoni, G., Chae, K. Y., Crespi, F. C. L., Fukuda, N., Gernhauser, R., Inabe, N., Isobe, T., Jungclaus, A., Kameda, D., Kim, G. D., Kim, Y. K., Kojouharov, I., Kondev, F. G., Kubo, T., Kurz, N., Kwon, Y. K., Lane, G. J., Lin, Z., Moon, C. -B., Montaner-Piza, A., Moschner, K., Naqvi, F., Niikura, M., Nishibata, H., Nishimura, D., Odahara, A., Orlandi, R., Patel, Z., Podolyak, Zs., Sakurai, H., Schaffner, H., Simpson, G. S., Steiger, K., Sun, Y., Suzuki, H., Takeda, H., Wendt, A., Yoshinaga, K., Watanabe, H., Wang, H. K., Lorusso, G., Nishimura, S., Xu, Z. Y., Sumikama, T., Soderstrom, P. -A., Doornenbal, P., Browne, F., Gey, G., Jung, H. S., Taprogge, J., Vajta, Zs., Wu, J., Yagi, A., Baba, H., Benzoni, G., Chae, K. Y., Crespi, F. C. L., Fukuda, N., Gernhauser, R., Inabe, N., Isobe, T., Jungclaus, A., Kameda, D., Kim, G. D., Kim, Y. K., Kojouharov, I., Kondev, F. G., Kubo, T., Kurz, N., Kwon, Y. K., Lane, G. J., Lin, Z., Moon, C. -B., Montaner-Piza, A., Moschner, K., Naqvi, F., Niikura, M., Nishibata, H., Nishimura, D., Odahara, A., Orlandi, R., Patel, Z., Podolyak, Zs., Sakurai, H., Schaffner, H., Simpson, G. S., Steiger, K., Sun, Y., Suzuki, H., Takeda, H., Wendt, A., and Yoshinaga, K.
Abstract: The neutron-rich isotopes of palladium have attracted considerable interest in terms of the evolution of the N = 82 neutron shell closure and its influence on the r-process nucleosynthesis. In this Letter, we present the first spectroscopic information on the excited states in Pd-125(79) and Pd-127(81) studied using the EURICA gamma-ray spectrometer, following production via in-flight fission of a high-intensity U-238 beam at the RIBF facility. New isomeric states with half-lives of 144(4) ns and 39(6) mu s have been assigned spins and parities of (23/2(+)) and (19/2(+)) in Pd-125 and Pd-127, respectively. The observed level properties are compared to a shell-model calculation, suggesting the competition between proton excitations and neutron excitations in the proton-hole and neutron-hole systems in the vicinity of the doubly magic nucleus Sn-132. (C) 2019 The Author(s). Published by Elsevier B.V.
Published: 2019

13. CYGNO: a CYGNUs Collaboration 1 m^3 Module with Optical Readout for Directional Dark Matter Search

Author: Baracchini, E., Bedogni, R., Bellini, F., Benussi, L., Bianco, S., Bignell, L., Caponero, M., Cavoto, G., Di Marco, E., Eldridge, C., Ezeribe, A., Gargana, R., Gamble, T., Gregorio, R., Lane, G., Loomba, D., Lynch, W., Maccarrone, G., Marafini, M., Mazzitelli, G., Messina, A., Mills, A., Miuchi, K., Petrucci, F., Piccolo, D., Pinci, D., Phan, N., Renga, F., Saviano, G., Spooner, N., Thorpe, T., Tomassini, S., Vahsen, S., Baracchini, E., Bedogni, R., Bellini, F., Benussi, L., Bianco, S., Bignell, L., Caponero, M., Cavoto, G., Di Marco, E., Eldridge, C., Ezeribe, A., Gargana, R., Gamble, T., Gregorio, R., Lane, G., Loomba, D., Lynch, W., Maccarrone, G., Marafini, M., Mazzitelli, G., Messina, A., Mills, A., Miuchi, K., Petrucci, F., Piccolo, D., Pinci, D., Phan, N., Renga, F., Saviano, G., Spooner, N., Thorpe, T., Tomassini, S., and Vahsen, S.
Abstract: The design of the project named CYGNO is presented. CYGNO is a new proposal supported by INFN, the Italian National Institute for Nuclear Physics, within CYGNUs proto-collaboration (CYGNUS-TPC) that aims to realize a distributed observatory in underground laboratories for directional Dark Matter (DM) search and the identification of the coherent neutrino scattering (CNS) from the Sun. CYGNO is one of the first prototypes in the road map to 100-1000 m^3 of CYGNUs and will be located at the National Laboratory of Gran Sasso (LNGS), in Italy, aiming to make significant advances in the technology of single phase gas-only time projection chambers (TPC) for the application to the detection of rare scattering events. In particular it will focus on a read-out technique based on Micro Pattern Gas Detector (MPGD) amplification of the ionization and on the visible light collection with a sub-mm position resolution sCMOS (scientific COMS) camera. This type of readout - in conjunction with a fast light detection - will allow on one hand to reconstruct 3D direction of the tracks, offering accurate sensitivity to the source directionality and, on the other hand, a high particle identification capability very useful to distinguish nuclear recoils.
Published: 2019

14. Monte Carlo simulation of the SABRE PoP background

Author: Antonello, M., Barberio, E., Baroncelli, T., Benziger, J., Bignell, L. J., Bolognino, I., Calaprice, F., Copello, S., D'Angelo, D., D'Imperio, G., Dafinei, I., Di Carlo, G., Diemoz, M., Di Ludovico, A., Duffy, A. R., Froborg, F., Giovanetti, G. K., Hoppe, E., Ianni, A., Ioannucci, L., Krishnan, S., Lane, G. J., Mahmood, I., Mariani, A., McGee, P., Montini, P., Mould, J., Nuti, F., Orlandi, D., Paris, M., Pettinacci, V., Pietrofaccia, L., Prokopovich, D., Rahatlou, S., Rossi, N., Sarbutt, A., Shields, E., Souza, M. J., Stuchbery, A. E., Suerfu, B., Tomei, C., Urquijo, P., Vignoli, C., Wada, M., Wallner, A., Williams, A. G., Xu, J., Zurowski, M., Antonello, M., Barberio, E., Baroncelli, T., Benziger, J., Bignell, L. J., Bolognino, I., Calaprice, F., Copello, S., D'Angelo, D., D'Imperio, G., Dafinei, I., Di Carlo, G., Diemoz, M., Di Ludovico, A., Duffy, A. R., Froborg, F., Giovanetti, G. K., Hoppe, E., Ianni, A., Ioannucci, L., Krishnan, S., Lane, G. J., Mahmood, I., Mariani, A., McGee, P., Montini, P., Mould, J., Nuti, F., Orlandi, D., Paris, M., Pettinacci, V., Pietrofaccia, L., Prokopovich, D., Rahatlou, S., Rossi, N., Sarbutt, A., Shields, E., Souza, M. J., Stuchbery, A. E., Suerfu, B., Tomei, C., Urquijo, P., Vignoli, C., Wada, M., Wallner, A., Williams, A. G., Xu, J., and Zurowski, M.
Abstract: SABRE (Sodium-iodide with Active Background REjection) is a direct dark matter search experiment based on an array of radio-pure NaI(Tl) crystals surrounded by a liquid scintillator veto. Twin SABRE experiments in the Northern and Southern Hemispheres will differentiate a dark matter signal from seasonal and local effects. The experiment is currently in a Proof-of-Principle (PoP) phase, whose goal is to demonstrate that the background rate is low enough to carry out an independent search for a dark matter signal, with sufficient sensitivity to confirm or refute the DAMA result during the following full-scale experimental phase. The impact of background radiation from the detector materials and the experimental site needs to be carefully investigated, including both intrinsic and cosmogenically activated radioactivity. Based on the best knowledge of the most relevant sources of background, we have performed a detailed Monte Carlo study evaluating the expected background in the dark matter search spectral region. The simulation model described in this paper guides the design of the full-scale experiment and will be fundamental for the interpretation of the measured background and hence for the extraction of a possible dark matter signal., Comment: 13 pages, 5 figures
Published: 2018
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15. The SABRE project and the SABRE PoP

Author: Antonello, M., Barberio, E., Baroncelli, T., Benziger, J., Bignell, L. J., Bolognino, I., Calaprice, F., Copello, S., D'Angelo, D., D'Imperio, G., Dafinei, I., Di Carlo, G., Diemoz, M., Di Ludovico, A., Dix, W., Duffy, A. R., Froborg, F., Giovanetti, G. K., Hoppe, E., Ianni, A., Ioannucci, L., Krishnan, S., Lane, G. J., Mahmood, I., Mariani, A., Mastrodicasa, M., Montini, P., Mould, J., Nuti, F., Orlandi, D., Paris, M., Pettinacci, V., Pietrofaccia, L., Prokopovic, D., Rahatlou, S., Rossi, N., Sarbutt, A., Shields, E., Souza, M. J., Stuchbery, A. E., Suerfu, B., Tomei, C., Toso, V., Urquijo, P., Vignoli, C., Wada, M., Wallner, A., Williams, A. G., Xu, J., Antonello, M., Barberio, E., Baroncelli, T., Benziger, J., Bignell, L. J., Bolognino, I., Calaprice, F., Copello, S., D'Angelo, D., D'Imperio, G., Dafinei, I., Di Carlo, G., Diemoz, M., Di Ludovico, A., Dix, W., Duffy, A. R., Froborg, F., Giovanetti, G. K., Hoppe, E., Ianni, A., Ioannucci, L., Krishnan, S., Lane, G. J., Mahmood, I., Mariani, A., Mastrodicasa, M., Montini, P., Mould, J., Nuti, F., Orlandi, D., Paris, M., Pettinacci, V., Pietrofaccia, L., Prokopovic, D., Rahatlou, S., Rossi, N., Sarbutt, A., Shields, E., Souza, M. J., Stuchbery, A. E., Suerfu, B., Tomei, C., Toso, V., Urquijo, P., Vignoli, C., Wada, M., Wallner, A., Williams, A. G., and Xu, J.
Abstract: SABRE aims to directly measure the annual modulation of the dark matter interaction rate with NaI(Tl) crystals. A modulation compatible with the standard hypothesis in which our Galaxy is embedded in a dark matter halo has been measured by the DAMA experiment in the same target material. Other direct detection experiments, using different target materials, seem to exclude the interpretation of such modulation in the simplest scenario of WIMP-nucleon elastic scattering. The SABRE experiment aims to carry out an independent search with sufficient sensitivity to confirm or refute the DAMA claim. The SABRE concept and goal is to obtain a background rate of the order of 0.1 cpd/kg/keVee in the energy region of interest. This challenging goal is achievable by operating high-purity crystals inside a liquid scintillator veto for active background rejection. In addition, twin detectors will be located in the northern and southern hemispheres to identify possible contributions to the modulation from seasonal or site-related effects. The SABRE project includes an initial Proof-of-Principle phase at LNGS (Italy), to assess the radio-purity of the crystals and the efficiency of the liquid scintillator veto. This paper describes the general concept of SABRE and the expected sensitivity to WIMP annual modulation., Comment: 7 pages, 4 figures
Published: 2018
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16. Observation of a gamma-decaying millisecond isomeric state in Cd-128(80)

Author: Jungclaus, A., Grawe, H., Nishimura, S., Doornenbal, P., Lorusso, G., Simpson, G. S., Soderstrom, P. -A., Sumikama, T., Taprogge, J., Xu, Z. Y., Baba, H., Browne, F., Fukuda, N., Gernhaeuser, R., Gey, G., Inabe, N., Isobe, T., Jung, H. S., Kameda, D., Kim, G. D., Kim, Y. -K., Kojouharov, I., Kubo, T., Kurz, N., Kwon, Y. K., Li, Z., Sakurai, H., Schaffner, H., Shimizu, Y., Steiger, K., Suzuki, H., Takeda, H., Vajta, Zs., Watanabe, H., Wu, J., Yagi, A., Yoshinaga, K., Benzoni, G., Boenig, S., Chae, K. Y., Coraggio, L., Daugas, J. -M., Drouet, F., Gadea, A., Gargano, A., Ilieva, S., Itaco, N., Kondev, F. G., Kroell, T., Lane, G. J., Montaner-Piza, A., Moschner, K., Muecher, D., Naqvi, F., Niikura, M., Nishibata, H., Odahara, A., Orlandi, R., Patel, Z., Podolyak, Zs., Wendt, A., Jungclaus, A., Grawe, H., Nishimura, S., Doornenbal, P., Lorusso, G., Simpson, G. S., Soderstrom, P. -A., Sumikama, T., Taprogge, J., Xu, Z. Y., Baba, H., Browne, F., Fukuda, N., Gernhaeuser, R., Gey, G., Inabe, N., Isobe, T., Jung, H. S., Kameda, D., Kim, G. D., Kim, Y. -K., Kojouharov, I., Kubo, T., Kurz, N., Kwon, Y. K., Li, Z., Sakurai, H., Schaffner, H., Shimizu, Y., Steiger, K., Suzuki, H., Takeda, H., Vajta, Zs., Watanabe, H., Wu, J., Yagi, A., Yoshinaga, K., Benzoni, G., Boenig, S., Chae, K. Y., Coraggio, L., Daugas, J. -M., Drouet, F., Gadea, A., Gargano, A., Ilieva, S., Itaco, N., Kondev, F. G., Kroell, T., Lane, G. J., Montaner-Piza, A., Moschner, K., Muecher, D., Naqvi, F., Niikura, M., Nishibata, H., Odahara, A., Orlandi, R., Patel, Z., Podolyak, Zs., and Wendt, A.
Abstract: A new high-spin isomer in the neutron-rich nucleus Cd-128 was populated in the projectile fission of a U-238 beam at the Radioactive Isotope Beam Factory at RIKEN. A half-life of T-1/2 = 6.3(8) mswas measured for the new state which was tentatively assigned a spin/parity of (15(-)). The experimental results are compared to shell model calculations performed using state-of-the-art realistic effective interactions and to the neighbouring nucleus Cd-129. In the present experiment no evidence was found for the decay of a 18(+) E6 spin-trap isomer, based on the complete alignment of the two-neutron and two-proton holes in the 0h(11/2) and the 0g(9/2) orbit, respectively, which is predicted to exist by the shell model. (C) 2017 The Author(s). Published by Elsevier B.V.
Published: 2017

17. Observation of a gamma-decaying millisecond isomeric state in Cd-128(80)

Author: Jungclaus, A., Grawe, H., Nishimura, S., Doornenbal, P., Lorusso, G., Simpson, G. S., Soderstrom, P. -A., Sumikama, T., Taprogge, J., Xu, Z. Y., Baba, H., Browne, F., Fukuda, N., Gernhaeuser, R., Gey, G., Inabe, N., Isobe, T., Jung, H. S., Kameda, D., Kim, G. D., Kim, Y. -K., Kojouharov, I., Kubo, T., Kurz, N., Kwon, Y. K., Li, Z., Sakurai, H., Schaffner, H., Shimizu, Y., Steiger, K., Suzuki, H., Takeda, H., Vajta, Zs., Watanabe, H., Wu, J., Yagi, A., Yoshinaga, K., Benzoni, G., Boenig, S., Chae, K. Y., Coraggio, L., Daugas, J. -M., Drouet, F., Gadea, A., Gargano, A., Ilieva, S., Itaco, N., Kondev, F. G., Kroell, T., Lane, G. J., Montaner-Piza, A., Moschner, K., Muecher, D., Naqvi, F., Niikura, M., Nishibata, H., Odahara, A., Orlandi, R., Patel, Z., Podolyak, Zs., Wendt, A., Jungclaus, A., Grawe, H., Nishimura, S., Doornenbal, P., Lorusso, G., Simpson, G. S., Soderstrom, P. -A., Sumikama, T., Taprogge, J., Xu, Z. Y., Baba, H., Browne, F., Fukuda, N., Gernhaeuser, R., Gey, G., Inabe, N., Isobe, T., Jung, H. S., Kameda, D., Kim, G. D., Kim, Y. -K., Kojouharov, I., Kubo, T., Kurz, N., Kwon, Y. K., Li, Z., Sakurai, H., Schaffner, H., Shimizu, Y., Steiger, K., Suzuki, H., Takeda, H., Vajta, Zs., Watanabe, H., Wu, J., Yagi, A., Yoshinaga, K., Benzoni, G., Boenig, S., Chae, K. Y., Coraggio, L., Daugas, J. -M., Drouet, F., Gadea, A., Gargano, A., Ilieva, S., Itaco, N., Kondev, F. G., Kroell, T., Lane, G. J., Montaner-Piza, A., Moschner, K., Muecher, D., Naqvi, F., Niikura, M., Nishibata, H., Odahara, A., Orlandi, R., Patel, Z., Podolyak, Zs., and Wendt, A.
Abstract: A new high-spin isomer in the neutron-rich nucleus Cd-128 was populated in the projectile fission of a U-238 beam at the Radioactive Isotope Beam Factory at RIKEN. A half-life of T-1/2 = 6.3(8) mswas measured for the new state which was tentatively assigned a spin/parity of (15(-)). The experimental results are compared to shell model calculations performed using state-of-the-art realistic effective interactions and to the neighbouring nucleus Cd-129. In the present experiment no evidence was found for the decay of a 18(+) E6 spin-trap isomer, based on the complete alignment of the two-neutron and two-proton holes in the 0h(11/2) and the 0g(9/2) orbit, respectively, which is predicted to exist by the shell model. (C) 2017 The Author(s). Published by Elsevier B.V.
Published: 2017

18. Evolving collective structures in the transitional nuclei W-162 and W-164

Author: Joss, D. T., Dracoulis, G. D., Higgins, E., Lewis, M., Thomson, J., Lane, G. J., Page, R. D., Simpson, J., Bianco, L., Cederwall, Bo, Darby, I. G., Davidson, P. M., Eeckhaudt, S., Erturk, S., Fabricius, B., Gomez-Hornillos, M. B., Grahn, T., Greenlees, P. T., Hadinia, Baharak, Jakobsson, U., Jones, P. M., Julin, R., Juutinen, S., Ketelhut, S., Leino, M., Nieminen, P., Nyman, M., Pakarinen, J., Paul, E. S., Peura, P., Rahkila, P., Ruotsalainen, P., Sandzelius, M., Sapple, P. J., Saren, J., Scholey, C., Sorri, J., Uusitalo, J., Joss, D. T., Dracoulis, G. D., Higgins, E., Lewis, M., Thomson, J., Lane, G. J., Page, R. D., Simpson, J., Bianco, L., Cederwall, Bo, Darby, I. G., Davidson, P. M., Eeckhaudt, S., Erturk, S., Fabricius, B., Gomez-Hornillos, M. B., Grahn, T., Greenlees, P. T., Hadinia, Baharak, Jakobsson, U., Jones, P. M., Julin, R., Juutinen, S., Ketelhut, S., Leino, M., Nieminen, P., Nyman, M., Pakarinen, J., Paul, E. S., Peura, P., Rahkila, P., Ruotsalainen, P., Sandzelius, M., Sapple, P. J., Saren, J., Scholey, C., Sorri, J., and Uusitalo, J.
Abstract: Excited states in the neutron-deficient nuclides(74)(162)W(88) and W-164(74)90 were investigated by using the gamma-ray spectrometer Jurogam. A change in structure is apparent from the first rotational alignments in W-162 and W-164, whose rotationally aligned bands are interpreted as nu(h(9/2))(2) and nu(i(13/2))(2) configurations, respectively. The level schemes have been extended using recoil (-decay) correlations with the observation of excited collective structures. Configuration assignments have been made on the basis of comparisons of the deduced aligned angular momentum, as a function of rotational frequency, with the predictions of the cranked shell model., QC 20160303
Published: 2016
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19. Physics book : CRYRING@ESR

Author: Lestinsky, M., Andrianov, V., Aurand, B., Bagnoud, V., Bernhardt, D., Beyer, H., Bishop, S., Blaum, K., Bleile, A., Borovik, At., Bosch, F., Bostock, C. J., Brandau, C., Braeuning-Demian, A., Bray, I., Davinson, T., Ebinger, B., Echler, A., Egelhof, P., Ehresmann, A., Engström, Mats, Enss, C., Ferreira, N., Fischer, D., Fleischmann, A., Foerster, E., Fritzsche, S., Geithner, R., Geyer, S., Glorius, J., Goebel, K., Gorda, O., Goullon, J., Grabitz, P., Grisenti, R., Gumberidze, A., Hagmann, S., Heil, M., Heinz, A., Herfurth, F., Hess, R., Hillenbrand, P. -M., Hubele, R., Indelicato, P., Källberg, Anders, Kester, O., Kiselev, O., Knie, A., Kozhuharov, C., Kraft-Bermuth, S., Kuehl, T., Lane, G., Litvinov, Yu. A., Liesen, D., Ma, X. W., Maertin, R., Moshammer, R., Mueller, A., Namba, S., Neumeyer, P., Nilsson, T., Noertershaeuser, W., Paulus, G., Petridis, N., Reed, M., Reifarth, R., Reiss, P., Rothhardt, J., Sanchez, R., Sanjari, M. S., Schippers, S., Schmidt, Henning T., Schneider, D., Scholz, P., Schuch, Reinhold, Schulz, M., Shabaev, V., Simonsson, Ansgar, Sjöholm, Johannes, Skeppstedt, Örjan, Sonnabend, K., Spillmann, U., Stiebing, K., Steck, M., Stohlker, T., Surzhykov, A., Torilov, S., Trabert, E., Trassinelli, M., Trotsenko, S., Tu, X. L., Uschmann, I., Walker, P. M., Weber, G., Winters, D. F. A., Woods, P. J., Zhao, H. Y., Zhang, Y. H., Lestinsky, M., Andrianov, V., Aurand, B., Bagnoud, V., Bernhardt, D., Beyer, H., Bishop, S., Blaum, K., Bleile, A., Borovik, At., Bosch, F., Bostock, C. J., Brandau, C., Braeuning-Demian, A., Bray, I., Davinson, T., Ebinger, B., Echler, A., Egelhof, P., Ehresmann, A., Engström, Mats, Enss, C., Ferreira, N., Fischer, D., Fleischmann, A., Foerster, E., Fritzsche, S., Geithner, R., Geyer, S., Glorius, J., Goebel, K., Gorda, O., Goullon, J., Grabitz, P., Grisenti, R., Gumberidze, A., Hagmann, S., Heil, M., Heinz, A., Herfurth, F., Hess, R., Hillenbrand, P. -M., Hubele, R., Indelicato, P., Källberg, Anders, Kester, O., Kiselev, O., Knie, A., Kozhuharov, C., Kraft-Bermuth, S., Kuehl, T., Lane, G., Litvinov, Yu. A., Liesen, D., Ma, X. W., Maertin, R., Moshammer, R., Mueller, A., Namba, S., Neumeyer, P., Nilsson, T., Noertershaeuser, W., Paulus, G., Petridis, N., Reed, M., Reifarth, R., Reiss, P., Rothhardt, J., Sanchez, R., Sanjari, M. S., Schippers, S., Schmidt, Henning T., Schneider, D., Scholz, P., Schuch, Reinhold, Schulz, M., Shabaev, V., Simonsson, Ansgar, Sjöholm, Johannes, Skeppstedt, Örjan, Sonnabend, K., Spillmann, U., Stiebing, K., Steck, M., Stohlker, T., Surzhykov, A., Torilov, S., Trabert, E., Trassinelli, M., Trotsenko, S., Tu, X. L., Uschmann, I., Walker, P. M., Weber, G., Winters, D. F. A., Woods, P. J., Zhao, H. Y., and Zhang, Y. H.
Abstract: The exploration of the unique properties of stored and cooled beams of highly-charged ions as provided by heavy-ion storage rings has opened novel and fascinating research opportunities in the realm of atomic and nuclear physics research. Since the late 1980s, pioneering work has been performed at the CRYRING at Stockholm (Abrahamsson et al. 1993) and at the Test Storage Ring (TSR) at Heidelberg (Baumann et al. 1988). For the heaviest ions in the highest charge-states, a real quantum jump was achieved in the early 1990s by the commissioning of the Experimental Storage Ring (ESR) at GSI Helmholtzzentrum für Schwerionenforschung (GSI) in Darmstadt (Franzke 1987) where challenging experiments on the electron dynamics in the strong field regime as well as nuclear physics studies on exotic nuclei and at the borderline to atomic physics were performed. Meanwhile also at Lanzhou a heavy-ion storage ring has been taken in operation, exploiting the unique research opportunities in particular for medium-heavy ions and exotic nuclei (Xia et al. 2002).
Published: 2016
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20. beta decay of semi-magic Cd-130: Revision and extension of the level scheme of In-130

Author: Jungclaus, A., Grawe, H., Nishimura, S., Doornenbal, P., Lorusso, G., Simpson, G. S., Soederstroem, P. -A., Sumikama, T., Taprogge, J., Xu, Z. Y., Baba, H., Browne, F., Fukuda, N., Gernhaeuser, R., Gey, G., Inabe, N., Isobe, T., Jung, H. S., Kameda, D., Kim, G. D., Kim, Y. -K., Kojouharov, I., Kubo, T., Kurz, N., Kwon, Y. K., Li, Z., Sakurai, H., Schaffner, H., Shimizu, Y., Steiger, K., Suzuki, H., Takeda, H., Vajta, Zs., Watanabe, H., Wu, J., Yagi, A., Yoshinaga, K., Benzoni, G., Boenig, S., Chae, K. Y., Coraggio, L., Daugas, J. -M., Drouet, F., Gadea, A., Gargano, A., Ilieva, S., Itaco, N., Kondev, F. G., Kroell, T., Lane, G. J., Montaner-Piza, A., Moschner, K., Muecher, D., Naqvi, F., Niikura, M., Nishibata, H., Odahara, A., Orlandi, R., Patel, Z., Podolyak, Zs., Wendt, A., Jungclaus, A., Grawe, H., Nishimura, S., Doornenbal, P., Lorusso, G., Simpson, G. S., Soederstroem, P. -A., Sumikama, T., Taprogge, J., Xu, Z. Y., Baba, H., Browne, F., Fukuda, N., Gernhaeuser, R., Gey, G., Inabe, N., Isobe, T., Jung, H. S., Kameda, D., Kim, G. D., Kim, Y. -K., Kojouharov, I., Kubo, T., Kurz, N., Kwon, Y. K., Li, Z., Sakurai, H., Schaffner, H., Shimizu, Y., Steiger, K., Suzuki, H., Takeda, H., Vajta, Zs., Watanabe, H., Wu, J., Yagi, A., Yoshinaga, K., Benzoni, G., Boenig, S., Chae, K. Y., Coraggio, L., Daugas, J. -M., Drouet, F., Gadea, A., Gargano, A., Ilieva, S., Itaco, N., Kondev, F. G., Kroell, T., Lane, G. J., Montaner-Piza, A., Moschner, K., Muecher, D., Naqvi, F., Niikura, M., Nishibata, H., Odahara, A., Orlandi, R., Patel, Z., Podolyak, Zs., and Wendt, A.
Abstract: The beta decay of the semi-magic nucleus Cd-130 has been studied at the RIBF facility at the RIKEN Nishina Center. The high statistics of the present experiment allowed for a revision of the established level scheme of In-130 and the observation of additional beta feeding to high- lying core-excited states in In-130. The experimental results are compared to shell-model calculations employing a model space consisting of the full major N = 50-82 neutron and Z = 28-50 proton shells and the NA-14 interaction, and good agreement is found.
Published: 2016

21. Proton-hole and core-excited states in the semi-magic nucleus In-131(82)

Author: Taprogge, J., Jungclaus, A., Grawe, H., Borzov, I. N., Nishimura, S., Doornenbal, P., Lorusso, G., Simpson, G. S., Soderstrom, P. -A., Sumikama, T., Xu, Z. Y., Baba, H., Browne, F., Fukuda, N., Gernhaeuser, R., Gey, G., Inabe, N., Isobe, T., Jung, H. S., Kameda, D., Kim, G. D., Kim, Y. -K., Kojouharov, I., Kubo, T., Kurz, N., Kwon, Y. K., Li, Z., Sakurai, H., Schaffner, H., Shimizu, Y., Steiger, K., Suzuki, H., Takeda, H., Vajta, Zs., Watanabe, H., Wu, J., Yagi, A., Yoshinaga, K., Benzoni, G., Boenig, S., Chae, K. Y., Coraggio, L., Daugas, J. -M., Drouet, F., Gadea, A., Gargano, A., Ilieva, S., Itaco, N., Kondev, F. G., Kroell, T., Lane, G. J., Montaner-Piza, A., Moschner, K., Muecher, D., Naqvi, F., Niikura, M., Nishibata, H., Odahara, A., Orlandi, R., Patel, Z., Podolyak, Zs., Wendt, A., Taprogge, J., Jungclaus, A., Grawe, H., Borzov, I. N., Nishimura, S., Doornenbal, P., Lorusso, G., Simpson, G. S., Soderstrom, P. -A., Sumikama, T., Xu, Z. Y., Baba, H., Browne, F., Fukuda, N., Gernhaeuser, R., Gey, G., Inabe, N., Isobe, T., Jung, H. S., Kameda, D., Kim, G. D., Kim, Y. -K., Kojouharov, I., Kubo, T., Kurz, N., Kwon, Y. K., Li, Z., Sakurai, H., Schaffner, H., Shimizu, Y., Steiger, K., Suzuki, H., Takeda, H., Vajta, Zs., Watanabe, H., Wu, J., Yagi, A., Yoshinaga, K., Benzoni, G., Boenig, S., Chae, K. Y., Coraggio, L., Daugas, J. -M., Drouet, F., Gadea, A., Gargano, A., Ilieva, S., Itaco, N., Kondev, F. G., Kroell, T., Lane, G. J., Montaner-Piza, A., Moschner, K., Muecher, D., Naqvi, F., Niikura, M., Nishibata, H., Odahara, A., Orlandi, R., Patel, Z., Podolyak, Zs., and Wendt, A.
Abstract: The decay of the N = 83 nucleus Cd-131 has been studied at the RIBF facility at the RIKEN Nishina Center. The main purpose of the study was to identify the position of the and proton-hole states and the energies of core-excited configurations in the semi-magic nucleus In-131. From the radiation emitted following the decay, a level scheme of In-131 was established and the feeding to each excited state determined. Similarities between the single-particle transitions observed in the decays of the N = 83 isotones In-132 and Cd-131 are discussed. Finally the excitation energies of several core-excited configurations in In-131 are compared to QRPA and shell-model calculations.
Published: 2016

22. Proton-hole and core-excited states in the semi-magic nucleus In-131(82) (vol 52, pg 347, 2016)

Author: Taprogge, J., Jungclaus, A., Grawe, H., Borzov, I. N., Nishimura, S., Doornenbal, P., Lorusso, G., Simpson, G. S., Soederstroem, P-A, Sumikama, T., Xu, Z. Y., Baba, H., Browne, F., Fukuda, N., Gernhaeuser, R., Gey, G., Inabe, N., Isobe, T., Jung, H. S., Kameda, D., Kim, G. D., Kim, Y-K., Kojouharov, I., Kubo, T., Kurz, N., Kwon, Y. K., Li, Z., Sakurai, H., Schaffner, H., Shimizu, Y., Steiger, K., Suzuki, H., Takeda, H., Vajta, Zs., Watanabe, H., Wu, J., Yagi, A., Yoshinaga, K., Benzoni, G., Boenig, S., Chae, K. Y., Coraggio, L., Daugas, J-M., Drouet, F., Gadea, A., Gargano, A., Ilieva, S., Itaco, N., Kondev, F. G., Kroell, T., Lane, G. J., Montaner-Piza, A., Moschner, K., Muecher, D., Naqvi, F., Niikura, M., Nishibata, H., Odahara, A., Orlandi, R., Patel, Z., Podolyak, Zs., Wendt, A., Taprogge, J., Jungclaus, A., Grawe, H., Borzov, I. N., Nishimura, S., Doornenbal, P., Lorusso, G., Simpson, G. S., Soederstroem, P-A, Sumikama, T., Xu, Z. Y., Baba, H., Browne, F., Fukuda, N., Gernhaeuser, R., Gey, G., Inabe, N., Isobe, T., Jung, H. S., Kameda, D., Kim, G. D., Kim, Y-K., Kojouharov, I., Kubo, T., Kurz, N., Kwon, Y. K., Li, Z., Sakurai, H., Schaffner, H., Shimizu, Y., Steiger, K., Suzuki, H., Takeda, H., Vajta, Zs., Watanabe, H., Wu, J., Yagi, A., Yoshinaga, K., Benzoni, G., Boenig, S., Chae, K. Y., Coraggio, L., Daugas, J-M., Drouet, F., Gadea, A., Gargano, A., Ilieva, S., Itaco, N., Kondev, F. G., Kroell, T., Lane, G. J., Montaner-Piza, A., Moschner, K., Muecher, D., Naqvi, F., Niikura, M., Nishibata, H., Odahara, A., Orlandi, R., Patel, Z., Podolyak, Zs., and Wendt, A.
Published: 2016

23. beta decay of semi-magic Cd-130: Revision and extension of the level scheme of In-130

Author: Jungclaus, A., Grawe, H., Nishimura, S., Doornenbal, P., Lorusso, G., Simpson, G. S., Soederstroem, P. -A., Sumikama, T., Taprogge, J., Xu, Z. Y., Baba, H., Browne, F., Fukuda, N., Gernhaeuser, R., Gey, G., Inabe, N., Isobe, T., Jung, H. S., Kameda, D., Kim, G. D., Kim, Y. -K., Kojouharov, I., Kubo, T., Kurz, N., Kwon, Y. K., Li, Z., Sakurai, H., Schaffner, H., Shimizu, Y., Steiger, K., Suzuki, H., Takeda, H., Vajta, Zs., Watanabe, H., Wu, J., Yagi, A., Yoshinaga, K., Benzoni, G., Boenig, S., Chae, K. Y., Coraggio, L., Daugas, J. -M., Drouet, F., Gadea, A., Gargano, A., Ilieva, S., Itaco, N., Kondev, F. G., Kroell, T., Lane, G. J., Montaner-Piza, A., Moschner, K., Muecher, D., Naqvi, F., Niikura, M., Nishibata, H., Odahara, A., Orlandi, R., Patel, Z., Podolyak, Zs., Wendt, A., Jungclaus, A., Grawe, H., Nishimura, S., Doornenbal, P., Lorusso, G., Simpson, G. S., Soederstroem, P. -A., Sumikama, T., Taprogge, J., Xu, Z. Y., Baba, H., Browne, F., Fukuda, N., Gernhaeuser, R., Gey, G., Inabe, N., Isobe, T., Jung, H. S., Kameda, D., Kim, G. D., Kim, Y. -K., Kojouharov, I., Kubo, T., Kurz, N., Kwon, Y. K., Li, Z., Sakurai, H., Schaffner, H., Shimizu, Y., Steiger, K., Suzuki, H., Takeda, H., Vajta, Zs., Watanabe, H., Wu, J., Yagi, A., Yoshinaga, K., Benzoni, G., Boenig, S., Chae, K. Y., Coraggio, L., Daugas, J. -M., Drouet, F., Gadea, A., Gargano, A., Ilieva, S., Itaco, N., Kondev, F. G., Kroell, T., Lane, G. J., Montaner-Piza, A., Moschner, K., Muecher, D., Naqvi, F., Niikura, M., Nishibata, H., Odahara, A., Orlandi, R., Patel, Z., Podolyak, Zs., and Wendt, A.
Abstract: The beta decay of the semi-magic nucleus Cd-130 has been studied at the RIBF facility at the RIKEN Nishina Center. The high statistics of the present experiment allowed for a revision of the established level scheme of In-130 and the observation of additional beta feeding to high- lying core-excited states in In-130. The experimental results are compared to shell-model calculations employing a model space consisting of the full major N = 50-82 neutron and Z = 28-50 proton shells and the NA-14 interaction, and good agreement is found.
Published: 2016

24. Proton-hole and core-excited states in the semi-magic nucleus In-131(82)

Author: Taprogge, J., Jungclaus, A., Grawe, H., Borzov, I. N., Nishimura, S., Doornenbal, P., Lorusso, G., Simpson, G. S., Soderstrom, P. -A., Sumikama, T., Xu, Z. Y., Baba, H., Browne, F., Fukuda, N., Gernhaeuser, R., Gey, G., Inabe, N., Isobe, T., Jung, H. S., Kameda, D., Kim, G. D., Kim, Y. -K., Kojouharov, I., Kubo, T., Kurz, N., Kwon, Y. K., Li, Z., Sakurai, H., Schaffner, H., Shimizu, Y., Steiger, K., Suzuki, H., Takeda, H., Vajta, Zs., Watanabe, H., Wu, J., Yagi, A., Yoshinaga, K., Benzoni, G., Boenig, S., Chae, K. Y., Coraggio, L., Daugas, J. -M., Drouet, F., Gadea, A., Gargano, A., Ilieva, S., Itaco, N., Kondev, F. G., Kroell, T., Lane, G. J., Montaner-Piza, A., Moschner, K., Muecher, D., Naqvi, F., Niikura, M., Nishibata, H., Odahara, A., Orlandi, R., Patel, Z., Podolyak, Zs., Wendt, A., Taprogge, J., Jungclaus, A., Grawe, H., Borzov, I. N., Nishimura, S., Doornenbal, P., Lorusso, G., Simpson, G. S., Soderstrom, P. -A., Sumikama, T., Xu, Z. Y., Baba, H., Browne, F., Fukuda, N., Gernhaeuser, R., Gey, G., Inabe, N., Isobe, T., Jung, H. S., Kameda, D., Kim, G. D., Kim, Y. -K., Kojouharov, I., Kubo, T., Kurz, N., Kwon, Y. K., Li, Z., Sakurai, H., Schaffner, H., Shimizu, Y., Steiger, K., Suzuki, H., Takeda, H., Vajta, Zs., Watanabe, H., Wu, J., Yagi, A., Yoshinaga, K., Benzoni, G., Boenig, S., Chae, K. Y., Coraggio, L., Daugas, J. -M., Drouet, F., Gadea, A., Gargano, A., Ilieva, S., Itaco, N., Kondev, F. G., Kroell, T., Lane, G. J., Montaner-Piza, A., Moschner, K., Muecher, D., Naqvi, F., Niikura, M., Nishibata, H., Odahara, A., Orlandi, R., Patel, Z., Podolyak, Zs., and Wendt, A.
Abstract: The decay of the N = 83 nucleus Cd-131 has been studied at the RIBF facility at the RIKEN Nishina Center. The main purpose of the study was to identify the position of the and proton-hole states and the energies of core-excited configurations in the semi-magic nucleus In-131. From the radiation emitted following the decay, a level scheme of In-131 was established and the feeding to each excited state determined. Similarities between the single-particle transitions observed in the decays of the N = 83 isotones In-132 and Cd-131 are discussed. Finally the excitation energies of several core-excited configurations in In-131 are compared to QRPA and shell-model calculations.
Published: 2016

25. Proton-hole and core-excited states in the semi-magic nucleus In-131(82) (vol 52, pg 347, 2016)

Author: Taprogge, J., Jungclaus, A., Grawe, H., Borzov, I. N., Nishimura, S., Doornenbal, P., Lorusso, G., Simpson, G. S., Soederstroem, P-A, Sumikama, T., Xu, Z. Y., Baba, H., Browne, F., Fukuda, N., Gernhaeuser, R., Gey, G., Inabe, N., Isobe, T., Jung, H. S., Kameda, D., Kim, G. D., Kim, Y-K., Kojouharov, I., Kubo, T., Kurz, N., Kwon, Y. K., Li, Z., Sakurai, H., Schaffner, H., Shimizu, Y., Steiger, K., Suzuki, H., Takeda, H., Vajta, Zs., Watanabe, H., Wu, J., Yagi, A., Yoshinaga, K., Benzoni, G., Boenig, S., Chae, K. Y., Coraggio, L., Daugas, J-M., Drouet, F., Gadea, A., Gargano, A., Ilieva, S., Itaco, N., Kondev, F. G., Kroell, T., Lane, G. J., Montaner-Piza, A., Moschner, K., Muecher, D., Naqvi, F., Niikura, M., Nishibata, H., Odahara, A., Orlandi, R., Patel, Z., Podolyak, Zs., Wendt, A., Taprogge, J., Jungclaus, A., Grawe, H., Borzov, I. N., Nishimura, S., Doornenbal, P., Lorusso, G., Simpson, G. S., Soederstroem, P-A, Sumikama, T., Xu, Z. Y., Baba, H., Browne, F., Fukuda, N., Gernhaeuser, R., Gey, G., Inabe, N., Isobe, T., Jung, H. S., Kameda, D., Kim, G. D., Kim, Y-K., Kojouharov, I., Kubo, T., Kurz, N., Kwon, Y. K., Li, Z., Sakurai, H., Schaffner, H., Shimizu, Y., Steiger, K., Suzuki, H., Takeda, H., Vajta, Zs., Watanabe, H., Wu, J., Yagi, A., Yoshinaga, K., Benzoni, G., Boenig, S., Chae, K. Y., Coraggio, L., Daugas, J-M., Drouet, F., Gadea, A., Gargano, A., Ilieva, S., Itaco, N., Kondev, F. G., Kroell, T., Lane, G. J., Montaner-Piza, A., Moschner, K., Muecher, D., Naqvi, F., Niikura, M., Nishibata, H., Odahara, A., Orlandi, R., Patel, Z., Podolyak, Zs., and Wendt, A.
Published: 2016

26. Physics book: CRYRING@ESR

Author: Lestinsky, M., Andrianov, V., Aurand, B., Bagnoud, V., Bernhardt, D., Beyer, H., Bishop, S., Blaum, K., Bleile, A., Borovik, A., Bosch, F., Bostock, C., Brandau, C., Bräuning-Demian, A., Bray, Igor, Davinson, T., Ebinger, B., Echler, A., Egelhof, P., Ehresmann, A., Engström, M., Enss, C., Ferreira, N., Fischer, D., Fleischmann, A., Förster, E., Fritzsche, S., Geithner, R., Geyer, S., Glorius, J., Göbel, K., Gorda, O., Goullon, J., Grabitz, P., Grisenti, R., Gumberidze, A., Hagmann, S., Heil, M., Heinz, A., Herfurth, F., Heß, R., Hillenbrand, P., Hubele, R., Indelicato, P., Källberg, A., Kester, O., Kiselev, O., Knie, A., Kozhuharov, C., Kraft-Bermuth, S., Kühl, T., Lane, G., Litvinov, Y., Liesen, D., Ma, X., Märtin, R., Moshammer, R., Müller, A., Namba, S., Neumeyer, P., Nilsson, T., Nörtershäuser, W., Paulus, G., Petridis, N., Reed, M., Reifarth, R., Reiß, P., Rothhardt, J., Sanchez, R., Sanjari, M., Schippers, S., Schmidt, H., Schneider, D., Scholz, P., Schuch, R., Schulz, M., Shabaev, V., Simonsson, A., Sjöholm, J., Skeppstedt, Sonnabend, K., Spillmann, U., Stiebing, K., Lestinsky, M., Andrianov, V., Aurand, B., Bagnoud, V., Bernhardt, D., Beyer, H., Bishop, S., Blaum, K., Bleile, A., Borovik, A., Bosch, F., Bostock, C., Brandau, C., Bräuning-Demian, A., Bray, Igor, Davinson, T., Ebinger, B., Echler, A., Egelhof, P., Ehresmann, A., Engström, M., Enss, C., Ferreira, N., Fischer, D., Fleischmann, A., Förster, E., Fritzsche, S., Geithner, R., Geyer, S., Glorius, J., Göbel, K., Gorda, O., Goullon, J., Grabitz, P., Grisenti, R., Gumberidze, A., Hagmann, S., Heil, M., Heinz, A., Herfurth, F., Heß, R., Hillenbrand, P., Hubele, R., Indelicato, P., Källberg, A., Kester, O., Kiselev, O., Knie, A., Kozhuharov, C., Kraft-Bermuth, S., Kühl, T., Lane, G., Litvinov, Y., Liesen, D., Ma, X., Märtin, R., Moshammer, R., Müller, A., Namba, S., Neumeyer, P., Nilsson, T., Nörtershäuser, W., Paulus, G., Petridis, N., Reed, M., Reifarth, R., Reiß, P., Rothhardt, J., Sanchez, R., Sanjari, M., Schippers, S., Schmidt, H., Schneider, D., Scholz, P., Schuch, R., Schulz, M., Shabaev, V., Simonsson, A., Sjöholm, J., Skeppstedt, Sonnabend, K., Spillmann, U., and Stiebing, K.
Abstract: The exploration of the unique properties of stored and cooled beams of highly-charged ions as provided by heavy-ion storage rings has opened novel and fascinating research opportunities in the realm of atomic and nuclear physics research. Since the late 1980s, pioneering work has been performed at the CRYRING at Stockholm (Abrahamsson et al. 1993) and at the Test Storage Ring (TSR) at Heidelberg (Baumann et al. 1988). For the heaviest ions in the highest charge-states, a real quantum jump was achieved in the early 1990s by the commissioning of the Experimental Storage Ring (ESR) at GSI Helmholtzzentrum für Schwerionenforschung (GSI) in Darmstadt (Franzke 1987) where challenging experiments on the electron dynamics in the strong field regime as well as nuclear physics studies on exotic nuclei and at the borderline to atomic physics were performed. Meanwhile also at Lanzhou a heavy-ion storage ring has been taken in operation, exploiting the unique research opportunities in particular for medium-heavy ions and exotic nuclei (Xia et al. 2002).
Published: 2016

27. Cadia expansion: the impact of installing high pressure grinding rolls prior to a semiautogenous grinding mill.

Author: Engelhardt D., 12th AusIMM mill operators’ conference Townsville, Queensland 01-Sep-1403-Sep-14, Lane G., Powell M.S., Engelhardt D., 12th AusIMM mill operators’ conference Townsville, Queensland 01-Sep-1403-Sep-14, Lane G., and Powell M.S.
Abstract: The Cadia Cu-Au mine in New South Wales, Australia, has moved from an open-pit operation to the Cadia East underground panel cave, and the resulting increase in milled tonnes, processing of more competent ore and decrease in fines production were predicted to require an increase of more than 25% in installed power. The expansion was achieved through the installation of secondary and high-pressure grinding roll (HPGR) crushing of the ore, with the semiautogenous grinding mill processing a combination of primary, secondary and HPGR crushed feed. The two existing pebble crushers were converted to secondary crushers to produce a P80 of 40 mm and can be bypassed to allow uncrushed feed to go straight to the semiautogenous mill. The initial results on circuit performance with the panel cave feed are discussed. The HPGR easily processes the nearly 2 500 t/h of feed and the circuit meets the full processing requirements, although the initial feed is not as coarse or competent and has a 10% lower ball mill work index than the P75 ore characteristics used for design. It is planned to feed as much material as possible to the HPGR, allowing higher semiautogenous mill throughput if mine production exceeds design capacity. Materials handling has been an issue with the more complex crushing, screening and conveying associated with the circuit, and improvements to the initial design are ongoing., The Cadia Cu-Au mine in New South Wales, Australia, has moved from an open-pit operation to the Cadia East underground panel cave, and the resulting increase in milled tonnes, processing of more competent ore and decrease in fines production were predicted to require an increase of more than 25% in installed power. The expansion was achieved through the installation of secondary and high-pressure grinding roll (HPGR) crushing of the ore, with the semiautogenous grinding mill processing a combination of primary, secondary and HPGR crushed feed. The two existing pebble crushers were converted to secondary crushers to produce a P80 of 40 mm and can be bypassed to allow uncrushed feed to go straight to the semiautogenous mill. The initial results on circuit performance with the panel cave feed are discussed. The HPGR easily processes the nearly 2 500 t/h of feed and the circuit meets the full processing requirements, although the initial feed is not as coarse or competent and has a 10% lower ball mill work index than the P75 ore characteristics used for design. It is planned to feed as much material as possible to the HPGR, allowing higher semiautogenous mill throughput if mine production exceeds design capacity. Materials handling has been an issue with the more complex crushing, screening and conveying associated with the circuit, and improvements to the initial design are ongoing.
Published: 2014

28. 1p(3/2) Proton-Hole State in Sn-132 and the Shell Structure Along N=82

Author: Taprogge, J., Jungclaus, A., Grawe, H., Nishimura, S., Doornenbal, P., Lorusso, G., Simpson, G. S., Soederstroem, P. -A., Sumikama, T., Xu, Z. Y., Baba, H., Browne, F., Fukuda, N., Gernhaeuser, R., Gey, G., Inabe, N., Isobe, T., Jung, H. S., Kameda, D., Kim, G. D., Kim, Y. -K., Kojouharov, I., Kubo, T., Kurz, N., Kwon, Y. K., Li, Z., Sakurai, H., Schaffner, H., Steiger, K., Suzuki, H., Takeda, H., Vajta, Zs., Watanabe, H., Wu, J., Yagi, A., Yoshinaga, K., Benzoni, G., Boenig, S., Chae, K. Y., Coraggio, L., Covello, A., Daugas, J. -M., Drouet, F., Gadea, A., Gargano, A., Ilieva, S., Kondev, F. G., Kroell, T., Lane, G. J., Montaner-Piza, A., Moschner, K., Muecher, D., Naqvi, F., Niikura, M., Nishibata, H., Odahara, A., Orlandi, R., Patel, Z., Podolyak, Zs., Wendt, A., Taprogge, J., Jungclaus, A., Grawe, H., Nishimura, S., Doornenbal, P., Lorusso, G., Simpson, G. S., Soederstroem, P. -A., Sumikama, T., Xu, Z. Y., Baba, H., Browne, F., Fukuda, N., Gernhaeuser, R., Gey, G., Inabe, N., Isobe, T., Jung, H. S., Kameda, D., Kim, G. D., Kim, Y. -K., Kojouharov, I., Kubo, T., Kurz, N., Kwon, Y. K., Li, Z., Sakurai, H., Schaffner, H., Steiger, K., Suzuki, H., Takeda, H., Vajta, Zs., Watanabe, H., Wu, J., Yagi, A., Yoshinaga, K., Benzoni, G., Boenig, S., Chae, K. Y., Coraggio, L., Covello, A., Daugas, J. -M., Drouet, F., Gadea, A., Gargano, A., Ilieva, S., Kondev, F. G., Kroell, T., Lane, G. J., Montaner-Piza, A., Moschner, K., Muecher, D., Naqvi, F., Niikura, M., Nishibata, H., Odahara, A., Orlandi, R., Patel, Z., Podolyak, Zs., and Wendt, A.
Abstract: A low-lying state in In-131(82), the one-proton hole nucleus with respect to double magic Sn-132, was observed by its gamma decay to the I-pi 1/2(-) beta-emitting isomer. We identify the new state at an excitation energy of E-x = 1353 keV, which was populated both in the beta decay of Cd-131(83) and after beta-delayed neutron emission from Cd-132(84), as the previously unknown pi p(3/2) single-hole state with respect to the Sn-132 core. Exploiting this crucial new experimental information, shell-model calculations were performed to study the structure of experimentally inaccessible N = 82 isotones below Sn-132. The results evidence a surprising absence of proton subshell closures along the chain of N = 82 isotones. The consequences of this finding for the evolution of the N = 82 shell gap along the r-process path are discussed.
Published: 2014

29. Monopole-Driven Shell Evolution below the Doubly Magic Nucleus Sn-132 Explored with the Long-Lived Isomer in Pd-126

Author: Watanabe, H., Lorusso, G., Nishimura, S., Otsuka, T., Ogawa, K., Xu, Z. Y., Sumikama, T., Soederstroem, P. -A., Doornenbal, P., Li, Z., Browne, F., Gey, G., Jung, H. S., Taprogge, J., Vajta, Zs., Wu, J., Yagi, A., Baba, H., Benzoni, G., Chae, K. Y., Crespi, F. C. L., Fukuda, N., Gernhaeuser, R., Inabe, N., Isobe, T., Jungclaus, A., Kameda, D., Kim, G. D., Kim, Y. K., Kojouharov, I., Kondev, F. G., Kubo, T., Kurz, N., Kwon, Y. K., Lane, G. J., Moon, C. -B., Montaner-Piza, A., Moschner, K., Naqvi, F., Niikura, M., Nishibata, H., Nishimura, D., Odahara, A., Orlandi, R., Patel, Z., Podolyak, Zs., Sakurai, H., Schaffner, H., Simpson, G. S., Steiger, K., Suzuki, H., Takeda, H., Wendt, A., Yoshinaga, K., Watanabe, H., Lorusso, G., Nishimura, S., Otsuka, T., Ogawa, K., Xu, Z. Y., Sumikama, T., Soederstroem, P. -A., Doornenbal, P., Li, Z., Browne, F., Gey, G., Jung, H. S., Taprogge, J., Vajta, Zs., Wu, J., Yagi, A., Baba, H., Benzoni, G., Chae, K. Y., Crespi, F. C. L., Fukuda, N., Gernhaeuser, R., Inabe, N., Isobe, T., Jungclaus, A., Kameda, D., Kim, G. D., Kim, Y. K., Kojouharov, I., Kondev, F. G., Kubo, T., Kurz, N., Kwon, Y. K., Lane, G. J., Moon, C. -B., Montaner-Piza, A., Moschner, K., Naqvi, F., Niikura, M., Nishibata, H., Nishimura, D., Odahara, A., Orlandi, R., Patel, Z., Podolyak, Zs., Sakurai, H., Schaffner, H., Simpson, G. S., Steiger, K., Suzuki, H., Takeda, H., Wendt, A., and Yoshinaga, K.
Abstract: A new isomer with a half-life of 23.0(8) ms has been identified at 2406 keV in Pd-126 and is proposed to have a spin and parity of 10(+) with a maximally aligned configuration comprising two neutron holes in the 1h(11/2) orbit. In addition to an internal-decay branch through a hindered electric octupole transition, beta decay from the long-lived isomer was observed to populate excited states at high spins in Ag-126. The smaller energy difference between the 10(+) and 7(-) isomers in Pd-126 than in the heavier N = 80 isotones can be interpreted as being ascribed to the monopole shift of the 1h(11/2) neutron orbit. The effects of the monopole interaction on the evolution of single-neutron energies below Sn-132 are discussed in terms of the central and tensor forces.
Published: 2014

30. Identification of a millisecond isomeric state in Cd-129(81) via the detection of internal conversion and Compton electrons

Author: Taprogge, J., Jungclaus, A., Grawe, H., Nishimura, S., Xu, Z. Y., Doornenbal, P., Lorusso, G., Nacher, E., Simpson, G. S., Soederstroem, P. -A., Sumikama, T., Baba, H., Browne, F., Fukuda, N., Gernhauser, R., Gey, G., Inabe, N., Isobe, T., Jung, H. S., Kameda, D., Kim, G. D., Kim, Y. -K., Kojouharov, I., Kubo, T., Kurz, N., Kwon, Y. K., Lin, Z., Sakurai, H., Schaffner, H., Steiger, K., Suzuki, H., Takeda, H., Vajta, Zs., Watanabe, H., Wu, J., Yagi, A., Yoshinaga, K., Benzoni, G., Boenig, S., Chae, K. Y., Coraggio, L., Covello, A., Daugas, J. -M., Drouet, F., Gadea, A., Gargano, A., Ilieva, S., Kondev, F. G., Kroell, T., Lane, G. J., Montaner-Piza, A., Moschner, K., Muecher, D., Naqvi, F., Niikura, M., Nishibata, H., Odahara, A., Orlandi, R., Patel, Z., Podolyak, Zs., Wendt, A., Taprogge, J., Jungclaus, A., Grawe, H., Nishimura, S., Xu, Z. Y., Doornenbal, P., Lorusso, G., Nacher, E., Simpson, G. S., Soederstroem, P. -A., Sumikama, T., Baba, H., Browne, F., Fukuda, N., Gernhauser, R., Gey, G., Inabe, N., Isobe, T., Jung, H. S., Kameda, D., Kim, G. D., Kim, Y. -K., Kojouharov, I., Kubo, T., Kurz, N., Kwon, Y. K., Lin, Z., Sakurai, H., Schaffner, H., Steiger, K., Suzuki, H., Takeda, H., Vajta, Zs., Watanabe, H., Wu, J., Yagi, A., Yoshinaga, K., Benzoni, G., Boenig, S., Chae, K. Y., Coraggio, L., Covello, A., Daugas, J. -M., Drouet, F., Gadea, A., Gargano, A., Ilieva, S., Kondev, F. G., Kroell, T., Lane, G. J., Montaner-Piza, A., Moschner, K., Muecher, D., Naqvi, F., Niikura, M., Nishibata, H., Odahara, A., Orlandi, R., Patel, Z., Podolyak, Zs., and Wendt, A.
Abstract: The decay of an isomeric state in the neutron-rich nucleus Cd-129 has been observed via the detection of internal conversion and Compton electrons providing first experimental information on excited states in this nucleus. The isomer was populated in the projectile fission of a U-238 beam at the Radioactive Isotope Beam Factory at RIKEN. From the measured yields of gamma-rays and internal conversion electrons, a multipolarity of E3 was tentatively assigned to the isomeric transition. A half-life of T-1/2 = 3.6(2) ms was determined for the new state which was assigned a spin of (21/2(+)), based on a comparison to shell model calculations performed using state-of-the-art realistic effective interactions. (C) 2014 The Authors. Published by Elsevier B.V.
Published: 2014

31. 1p(3/2) Proton-Hole State in Sn-132 and the Shell Structure Along N=82

Author: Taprogge, J., Jungclaus, A., Grawe, H., Nishimura, S., Doornenbal, P., Lorusso, G., Simpson, G. S., Soederstroem, P. -A., Sumikama, T., Xu, Z. Y., Baba, H., Browne, F., Fukuda, N., Gernhaeuser, R., Gey, G., Inabe, N., Isobe, T., Jung, H. S., Kameda, D., Kim, G. D., Kim, Y. -K., Kojouharov, I., Kubo, T., Kurz, N., Kwon, Y. K., Li, Z., Sakurai, H., Schaffner, H., Steiger, K., Suzuki, H., Takeda, H., Vajta, Zs., Watanabe, H., Wu, J., Yagi, A., Yoshinaga, K., Benzoni, G., Boenig, S., Chae, K. Y., Coraggio, L., Covello, A., Daugas, J. -M., Drouet, F., Gadea, A., Gargano, A., Ilieva, S., Kondev, F. G., Kroell, T., Lane, G. J., Montaner-Piza, A., Moschner, K., Muecher, D., Naqvi, F., Niikura, M., Nishibata, H., Odahara, A., Orlandi, R., Patel, Z., Podolyak, Zs., Wendt, A., Taprogge, J., Jungclaus, A., Grawe, H., Nishimura, S., Doornenbal, P., Lorusso, G., Simpson, G. S., Soederstroem, P. -A., Sumikama, T., Xu, Z. Y., Baba, H., Browne, F., Fukuda, N., Gernhaeuser, R., Gey, G., Inabe, N., Isobe, T., Jung, H. S., Kameda, D., Kim, G. D., Kim, Y. -K., Kojouharov, I., Kubo, T., Kurz, N., Kwon, Y. K., Li, Z., Sakurai, H., Schaffner, H., Steiger, K., Suzuki, H., Takeda, H., Vajta, Zs., Watanabe, H., Wu, J., Yagi, A., Yoshinaga, K., Benzoni, G., Boenig, S., Chae, K. Y., Coraggio, L., Covello, A., Daugas, J. -M., Drouet, F., Gadea, A., Gargano, A., Ilieva, S., Kondev, F. G., Kroell, T., Lane, G. J., Montaner-Piza, A., Moschner, K., Muecher, D., Naqvi, F., Niikura, M., Nishibata, H., Odahara, A., Orlandi, R., Patel, Z., Podolyak, Zs., and Wendt, A.
Abstract: A low-lying state in In-131(82), the one-proton hole nucleus with respect to double magic Sn-132, was observed by its gamma decay to the I-pi 1/2(-) beta-emitting isomer. We identify the new state at an excitation energy of E-x = 1353 keV, which was populated both in the beta decay of Cd-131(83) and after beta-delayed neutron emission from Cd-132(84), as the previously unknown pi p(3/2) single-hole state with respect to the Sn-132 core. Exploiting this crucial new experimental information, shell-model calculations were performed to study the structure of experimentally inaccessible N = 82 isotones below Sn-132. The results evidence a surprising absence of proton subshell closures along the chain of N = 82 isotones. The consequences of this finding for the evolution of the N = 82 shell gap along the r-process path are discussed.
Published: 2014

32. Monopole-Driven Shell Evolution below the Doubly Magic Nucleus Sn-132 Explored with the Long-Lived Isomer in Pd-126

Author: Watanabe, H., Lorusso, G., Nishimura, S., Otsuka, T., Ogawa, K., Xu, Z. Y., Sumikama, T., Soederstroem, P. -A., Doornenbal, P., Li, Z., Browne, F., Gey, G., Jung, H. S., Taprogge, J., Vajta, Zs., Wu, J., Yagi, A., Baba, H., Benzoni, G., Chae, K. Y., Crespi, F. C. L., Fukuda, N., Gernhaeuser, R., Inabe, N., Isobe, T., Jungclaus, A., Kameda, D., Kim, G. D., Kim, Y. K., Kojouharov, I., Kondev, F. G., Kubo, T., Kurz, N., Kwon, Y. K., Lane, G. J., Moon, C. -B., Montaner-Piza, A., Moschner, K., Naqvi, F., Niikura, M., Nishibata, H., Nishimura, D., Odahara, A., Orlandi, R., Patel, Z., Podolyak, Zs., Sakurai, H., Schaffner, H., Simpson, G. S., Steiger, K., Suzuki, H., Takeda, H., Wendt, A., Yoshinaga, K., Watanabe, H., Lorusso, G., Nishimura, S., Otsuka, T., Ogawa, K., Xu, Z. Y., Sumikama, T., Soederstroem, P. -A., Doornenbal, P., Li, Z., Browne, F., Gey, G., Jung, H. S., Taprogge, J., Vajta, Zs., Wu, J., Yagi, A., Baba, H., Benzoni, G., Chae, K. Y., Crespi, F. C. L., Fukuda, N., Gernhaeuser, R., Inabe, N., Isobe, T., Jungclaus, A., Kameda, D., Kim, G. D., Kim, Y. K., Kojouharov, I., Kondev, F. G., Kubo, T., Kurz, N., Kwon, Y. K., Lane, G. J., Moon, C. -B., Montaner-Piza, A., Moschner, K., Naqvi, F., Niikura, M., Nishibata, H., Nishimura, D., Odahara, A., Orlandi, R., Patel, Z., Podolyak, Zs., Sakurai, H., Schaffner, H., Simpson, G. S., Steiger, K., Suzuki, H., Takeda, H., Wendt, A., and Yoshinaga, K.
Abstract: A new isomer with a half-life of 23.0(8) ms has been identified at 2406 keV in Pd-126 and is proposed to have a spin and parity of 10(+) with a maximally aligned configuration comprising two neutron holes in the 1h(11/2) orbit. In addition to an internal-decay branch through a hindered electric octupole transition, beta decay from the long-lived isomer was observed to populate excited states at high spins in Ag-126. The smaller energy difference between the 10(+) and 7(-) isomers in Pd-126 than in the heavier N = 80 isotones can be interpreted as being ascribed to the monopole shift of the 1h(11/2) neutron orbit. The effects of the monopole interaction on the evolution of single-neutron energies below Sn-132 are discussed in terms of the central and tensor forces.
Published: 2014

33. Identification of a millisecond isomeric state in Cd-129(81) via the detection of internal conversion and Compton electrons

Author: Taprogge, J., Jungclaus, A., Grawe, H., Nishimura, S., Xu, Z. Y., Doornenbal, P., Lorusso, G., Nacher, E., Simpson, G. S., Soederstroem, P. -A., Sumikama, T., Baba, H., Browne, F., Fukuda, N., Gernhauser, R., Gey, G., Inabe, N., Isobe, T., Jung, H. S., Kameda, D., Kim, G. D., Kim, Y. -K., Kojouharov, I., Kubo, T., Kurz, N., Kwon, Y. K., Lin, Z., Sakurai, H., Schaffner, H., Steiger, K., Suzuki, H., Takeda, H., Vajta, Zs., Watanabe, H., Wu, J., Yagi, A., Yoshinaga, K., Benzoni, G., Boenig, S., Chae, K. Y., Coraggio, L., Covello, A., Daugas, J. -M., Drouet, F., Gadea, A., Gargano, A., Ilieva, S., Kondev, F. G., Kroell, T., Lane, G. J., Montaner-Piza, A., Moschner, K., Muecher, D., Naqvi, F., Niikura, M., Nishibata, H., Odahara, A., Orlandi, R., Patel, Z., Podolyak, Zs., Wendt, A., Taprogge, J., Jungclaus, A., Grawe, H., Nishimura, S., Xu, Z. Y., Doornenbal, P., Lorusso, G., Nacher, E., Simpson, G. S., Soederstroem, P. -A., Sumikama, T., Baba, H., Browne, F., Fukuda, N., Gernhauser, R., Gey, G., Inabe, N., Isobe, T., Jung, H. S., Kameda, D., Kim, G. D., Kim, Y. -K., Kojouharov, I., Kubo, T., Kurz, N., Kwon, Y. K., Lin, Z., Sakurai, H., Schaffner, H., Steiger, K., Suzuki, H., Takeda, H., Vajta, Zs., Watanabe, H., Wu, J., Yagi, A., Yoshinaga, K., Benzoni, G., Boenig, S., Chae, K. Y., Coraggio, L., Covello, A., Daugas, J. -M., Drouet, F., Gadea, A., Gargano, A., Ilieva, S., Kondev, F. G., Kroell, T., Lane, G. J., Montaner-Piza, A., Moschner, K., Muecher, D., Naqvi, F., Niikura, M., Nishibata, H., Odahara, A., Orlandi, R., Patel, Z., Podolyak, Zs., and Wendt, A.
Abstract: The decay of an isomeric state in the neutron-rich nucleus Cd-129 has been observed via the detection of internal conversion and Compton electrons providing first experimental information on excited states in this nucleus. The isomer was populated in the projectile fission of a U-238 beam at the Radioactive Isotope Beam Factory at RIKEN. From the measured yields of gamma-rays and internal conversion electrons, a multipolarity of E3 was tentatively assigned to the isomeric transition. A half-life of T-1/2 = 3.6(2) ms was determined for the new state which was assigned a spin of (21/2(+)), based on a comparison to shell model calculations performed using state-of-the-art realistic effective interactions. (C) 2014 The Authors. Published by Elsevier B.V.
Published: 2014

34. Project delivery.

Author: Lane G., MetPlant 2013: metallurgical plant design and operating strategies Perth, Western Australia 15-Jul-1317-Jul-13, Skinner E., Lane G., MetPlant 2013: metallurgical plant design and operating strategies Perth, Western Australia 15-Jul-1317-Jul-13, and Skinner E.
Abstract: The challenge in selection of a project delivery strategy is to resolve how best to address the inadequacies between the ideal case and the present reality. The mechanism for addressing the inadequacies defines the likely outcome of the project. An experienced project delivery team with a proven track record on similar projects is essential for successful delivery of large projects, but projects with the best levels of definition and coherence of vision among the team will still generate a wide range of unforeseeable challenges through the execution process, so teams able to rapidly and effectively identify and mitigate adverse conditions or risks are essential to minimisation/avoidance of consequent delays and costs. In general, simple contracting strategies are adequate to deliver smaller projects of known technology and low complexity; this approach should be extended to single-sourcing equipment and contractors where existing relationships add value to the project. Complex delivery strategies should be carefully articulated and managed, as they require higher levels of interface definition and control and, hence, more management and higher cost; however, they do offer the ability to include specialist expertise and capabilities that can add substantial value to the overall project., The challenge in selection of a project delivery strategy is to resolve how best to address the inadequacies between the ideal case and the present reality. The mechanism for addressing the inadequacies defines the likely outcome of the project. An experienced project delivery team with a proven track record on similar projects is essential for successful delivery of large projects, but projects with the best levels of definition and coherence of vision among the team will still generate a wide range of unforeseeable challenges through the execution process, so teams able to rapidly and effectively identify and mitigate adverse conditions or risks are essential to minimisation/avoidance of consequent delays and costs. In general, simple contracting strategies are adequate to deliver smaller projects of known technology and low complexity; this approach should be extended to single-sourcing equipment and contractors where existing relationships add value to the project. Complex delivery strategies should be carefully articulated and managed, as they require higher levels of interface definition and control and, hence, more management and higher cost; however, they do offer the ability to include specialist expertise and capabilities that can add substantial value to the overall project.
Published: 2013

35. Isomers in Pd-128 and Pd-126: Evidence for a Robust Shell Closure at the Neutron Magic Number 82 in Exotic Palladium Isotopes

Author: Watanabe, H., Lorusso, G., Nishimura, S., Xu, Z. Y., Sumikama, T., Soederstroem, P. -A., Doornenbal, P., Browne, F., Gey, G., Jung, H. S., Taprogge, J., Vajta, Zs., Wu, J., Yagi, A., Baba, H., Benzoni, G., Chae, K. Y., Crespi, F. C. L., Fukuda, N., Gernhaeuser, R., Inabe, N., Isobe, T., Jungclaus, A., Kameda, D., Kim, G. D., Kim, Y. K., Kojouharov, I., Kondev, F. G., Kubo, T., Kurz, N., Kwon, Y. K., Lane, G. J., Li, Z., Moon, C. -B., Montaner-Piza, A., Moschner, K., Naqvi, F., Niikura, M., Nishibata, H., Nishimura, D., Odahara, A., Orlandi, R., Patel, Z., Podolyak, Zs., Sakurai, H., Schaffner, H., Simpson, G. S., Steiger, K., Suzuki, H., Takeda, H., Wendt, A., Yoshinaga, K., Watanabe, H., Lorusso, G., Nishimura, S., Xu, Z. Y., Sumikama, T., Soederstroem, P. -A., Doornenbal, P., Browne, F., Gey, G., Jung, H. S., Taprogge, J., Vajta, Zs., Wu, J., Yagi, A., Baba, H., Benzoni, G., Chae, K. Y., Crespi, F. C. L., Fukuda, N., Gernhaeuser, R., Inabe, N., Isobe, T., Jungclaus, A., Kameda, D., Kim, G. D., Kim, Y. K., Kojouharov, I., Kondev, F. G., Kubo, T., Kurz, N., Kwon, Y. K., Lane, G. J., Li, Z., Moon, C. -B., Montaner-Piza, A., Moschner, K., Naqvi, F., Niikura, M., Nishibata, H., Nishimura, D., Odahara, A., Orlandi, R., Patel, Z., Podolyak, Zs., Sakurai, H., Schaffner, H., Simpson, G. S., Steiger, K., Suzuki, H., Takeda, H., Wendt, A., and Yoshinaga, K.
Abstract: The level structures of the very neutron-rich nuclei Pd-128 and Pd-126 have been investigated for the first time. In the r-process waiting-point nucleus Pd-128, a new isomer with a half-life of 5.8(8) mu s is proposed to have a spin and parity of 8(+) and is associated with a maximally aligned configuration arising from the g(9/2) proton subshell with seniority v = 2. For Pd-126, two new isomers have been identified with half-lives of 0.33(4) and 0.44(3) mu s. The yrast 2(+) energy is much higher in Pd-128 than in Pd-126, while the level sequence below the 8(+) isomer in Pd-128 is similar to that in the N = 82 isotone Cd-130. The electric quadrupole transition that depopulates the 8(+) isomer in Pd-128 is more hindered than the corresponding transition in Cd-130, as expected in the seniority scheme for a semimagic, spherical nucleus. These experimental findings indicate that the shell closure at the neutron number N = 82 is fairly robust in the neutron-rich Pd isotopes.
Published: 2013

36. Isomers in Pd-128 and Pd-126: Evidence for a Robust Shell Closure at the Neutron Magic Number 82 in Exotic Palladium Isotopes

Author: Watanabe, H., Lorusso, G., Nishimura, S., Xu, Z. Y., Sumikama, T., Soederstroem, P. -A., Doornenbal, P., Browne, F., Gey, G., Jung, H. S., Taprogge, J., Vajta, Zs., Wu, J., Yagi, A., Baba, H., Benzoni, G., Chae, K. Y., Crespi, F. C. L., Fukuda, N., Gernhaeuser, R., Inabe, N., Isobe, T., Jungclaus, A., Kameda, D., Kim, G. D., Kim, Y. K., Kojouharov, I., Kondev, F. G., Kubo, T., Kurz, N., Kwon, Y. K., Lane, G. J., Li, Z., Moon, C. -B., Montaner-Piza, A., Moschner, K., Naqvi, F., Niikura, M., Nishibata, H., Nishimura, D., Odahara, A., Orlandi, R., Patel, Z., Podolyak, Zs., Sakurai, H., Schaffner, H., Simpson, G. S., Steiger, K., Suzuki, H., Takeda, H., Wendt, A., Yoshinaga, K., Watanabe, H., Lorusso, G., Nishimura, S., Xu, Z. Y., Sumikama, T., Soederstroem, P. -A., Doornenbal, P., Browne, F., Gey, G., Jung, H. S., Taprogge, J., Vajta, Zs., Wu, J., Yagi, A., Baba, H., Benzoni, G., Chae, K. Y., Crespi, F. C. L., Fukuda, N., Gernhaeuser, R., Inabe, N., Isobe, T., Jungclaus, A., Kameda, D., Kim, G. D., Kim, Y. K., Kojouharov, I., Kondev, F. G., Kubo, T., Kurz, N., Kwon, Y. K., Lane, G. J., Li, Z., Moon, C. -B., Montaner-Piza, A., Moschner, K., Naqvi, F., Niikura, M., Nishibata, H., Nishimura, D., Odahara, A., Orlandi, R., Patel, Z., Podolyak, Zs., Sakurai, H., Schaffner, H., Simpson, G. S., Steiger, K., Suzuki, H., Takeda, H., Wendt, A., and Yoshinaga, K.
Abstract: The level structures of the very neutron-rich nuclei Pd-128 and Pd-126 have been investigated for the first time. In the r-process waiting-point nucleus Pd-128, a new isomer with a half-life of 5.8(8) mu s is proposed to have a spin and parity of 8(+) and is associated with a maximally aligned configuration arising from the g(9/2) proton subshell with seniority v = 2. For Pd-126, two new isomers have been identified with half-lives of 0.33(4) and 0.44(3) mu s. The yrast 2(+) energy is much higher in Pd-128 than in Pd-126, while the level sequence below the 8(+) isomer in Pd-128 is similar to that in the N = 82 isotone Cd-130. The electric quadrupole transition that depopulates the 8(+) isomer in Pd-128 is more hindered than the corresponding transition in Cd-130, as expected in the seniority scheme for a semimagic, spherical nucleus. These experimental findings indicate that the shell closure at the neutron number N = 82 is fairly robust in the neutron-rich Pd isotopes.
Published: 2013

37. Assessment of the flow pattern in a solvent extraction settler.

Author: Lane G., 9th International conference on CFD in the minerals and process industries Melbourne, Australia 10-Dec-1212-Dec-12, Mohanarangam K., Yang W., Lane G., 9th International conference on CFD in the minerals and process industries Melbourne, Australia 10-Dec-1212-Dec-12, Mohanarangam K., and Yang W.
Abstract: An investigation is presented into the fluid-flow pattern in a solvent-extraction settler at a nickel/cobalt plant by means of on-site measurements using an ultrasonic velocity profile probe and computational fluid dynamics modelling. The two sets of data were found to match satisfactorily, although the studies revealed a suboptimum flow pattern in the current design, exhibiting substantial short-circuiting and regions of recirculation. Additional computational fluid dynamics modelling was therefore conducted to assess alternative designs for the internals of the settler, with the aim of improving the flow pattern. A revised design incorporates three picket fences, with an increased number of pickets and gaps in each row and additional angled vanes at the inlet. A computational fluid dynamics simulation indicated a more uniform flow pattern and the residence time distribution pointed to a reduction in early exiting of fluid., An investigation is presented into the fluid-flow pattern in a solvent-extraction settler at a nickel/cobalt plant by means of on-site measurements using an ultrasonic velocity profile probe and computational fluid dynamics modelling. The two sets of data were found to match satisfactorily, although the studies revealed a suboptimum flow pattern in the current design, exhibiting substantial short-circuiting and regions of recirculation. Additional computational fluid dynamics modelling was therefore conducted to assess alternative designs for the internals of the settler, with the aim of improving the flow pattern. A revised design incorporates three picket fences, with an increased number of pickets and gaps in each row and additional angled vanes at the inlet. A computational fluid dynamics simulation indicated a more uniform flow pattern and the residence time distribution pointed to a reduction in early exiting of fluid.
Published: 2012

38. Key drivers of energy and cost efficiency in autogenous/semi-autogenous grinding circuits.

Author: Bueno M., 11th AusIMM mill operators' conference 2012 Hobart, Tasmania 29-Oct-1231-Oct-12, Lane G., Bueno M., 11th AusIMM mill operators' conference 2012 Hobart, Tasmania 29-Oct-1231-Oct-12, and Lane G.
Abstract: In their previous work, based on 10 years of pilot trials using different ores from various projects, the authors calculated the energy efficiency parameter, a simplified operating cost for each trial and a cost-efficiency factor. The analysis indicated which circuit configurations were more or less energy- and cost-efficient, and that the efficiency of these circuits varied significantly. This follow-up paper assesses individually the numerous factors that contribute to the variations of efficiency of AG/SAG circuits, such as feed size distribution, recycle ratios and ore characteristics, and discusses what may lead a particular circuit configuration to be more or less efficient in terms of energy and costs., In their previous work, based on 10 years of pilot trials using different ores from various projects, the authors calculated the energy efficiency parameter, a simplified operating cost for each trial and a cost-efficiency factor. The analysis indicated which circuit configurations were more or less energy- and cost-efficient, and that the efficiency of these circuits varied significantly. This follow-up paper assesses individually the numerous factors that contribute to the variations of efficiency of AG/SAG circuits, such as feed size distribution, recycle ratios and ore characteristics, and discusses what may lead a particular circuit configuration to be more or less efficient in terms of energy and costs.
Published: 2012

39. Benchmarking versus test work: how should you manage process risk?

Author: Lane G., Project evaluation conference 2012 Melbourne, Australia 24-May-1225-May-12, Jeffery D., Whittering R., Lane G., Project evaluation conference 2012 Melbourne, Australia 24-May-1225-May-12, Jeffery D., and Whittering R.
Abstract: Most aspects of process design are best addressed through bench- or pilot-plant scale test work but, as experience is gained, fundamental or indicative data can provide more than adequate information to manage the risk associated with some process aspects of concentrator design. On many occasions benchmarking, sometimes supported by fundamental data such as mineralogy, has been used to successfully develop effective process plant outcomes. Test work needs are considered in the context of managing technical risk and the development of inputs to the process design criteria for the process plant and associated facilities such as tailings storage and pipelines, leading to the development of capital costs. Benchmarking is used to determine relationships within most grinding circuit models, for flotation residence time and froth carry factor scale-up and thickener and filter selection. A higher risk can result from applying ‘industry norm’ relationships to laboratory test work data than applying sound benchmarking and semi-quantitative observation. Three examples are presented covering grinding circuit design, flotation and thickening. Recommendations are presented for project managers including the front end loading of the mineral resource evaluation process to reduce the cost and time requirements for test work programmes through prior use of geological and mineralogical data, early planning of the sample selection and test work programme process and combining the risk mitigation approaches relating to environmental, tailings, geotechnical and other processes to provide an insight into the criticality of the interrelationships., Most aspects of process design are best addressed through bench- or pilot-plant scale test work but, as experience is gained, fundamental or indicative data can provide more than adequate information to manage the risk associated with some process aspects of concentrator design. On many occasions benchmarking, sometimes supported by fundamental data such as mineralogy, has been used to successfully develop effective process plant outcomes. Test work needs are considered in the context of managing technical risk and the development of inputs to the process design criteria for the process plant and associated facilities such as tailings storage and pipelines, leading to the development of capital costs. Benchmarking is used to determine relationships within most grinding circuit models, for flotation residence time and froth carry factor scale-up and thickener and filter selection. A higher risk can result from applying ‘industry norm’ relationships to laboratory test work data than applying sound benchmarking and semi-quantitative observation. Three examples are presented covering grinding circuit design, flotation and thickening. Recommendations are presented for project managers including the front end loading of the mineral resource evaluation process to reduce the cost and time requirements for test work programmes through prior use of geological and mineralogical data, early planning of the sample selection and test work programme process and combining the risk mitigation approaches relating to environmental, tailings, geotechnical and other processes to provide an insight into the criticality of the interrelationships.
Published: 2012

40. Operations versus projects: how do people think and what are the implications?

Author: Lane G., 11th AusIMM mill operators' conference 2012 Hobart, Tasmania 29-Oct-1231-Oct-12, Clements B., Lane G., 11th AusIMM mill operators' conference 2012 Hobart, Tasmania 29-Oct-1231-Oct-12, and Clements B.
Abstract: The current mining environment is characterised by a shortage of engineers and managers with project experience, causing a significant movement of personnel from mining operations into projects. One consequence is the effect on the behavioural characteristics of the project management and leadership team, key to the delivery of a successful project. The development of mineral processing projects is goal-oriented and schedule-focused in a contractual environment, involving quick commitment of large amounts of money, whereas the plant operating environment has longer-term commitments and budgetary targets that require costs to be minimised and capital expenditure delayed. Project managers need clarity and a clear path to timely completion; operations managers need a plant that is easily operated and maintained, supported by a robust operational readiness programme. However, the two often need to come together and tremendous value can be added to a well-managed project when all those contributing understand and respect the diverse requirements for success. The paper considers the different perspectives people bring to projects and early operations, including the advantages and disadvantages of operations input to a project and models for managing value-adding during project development, implementation and debottlenecking., The current mining environment is characterised by a shortage of engineers and managers with project experience, causing a significant movement of personnel from mining operations into projects. One consequence is the effect on the behavioural characteristics of the project management and leadership team, key to the delivery of a successful project. The development of mineral processing projects is goal-oriented and schedule-focused in a contractual environment, involving quick commitment of large amounts of money, whereas the plant operating environment has longer-term commitments and budgetary targets that require costs to be minimised and capital expenditure delayed. Project managers need clarity and a clear path to timely completion; operations managers need a plant that is easily operated and maintained, supported by a robust operational readiness programme. However, the two often need to come together and tremendous value can be added to a well-managed project when all those contributing understand and respect the diverse requirements for success. The paper considers the different perspectives people bring to projects and early operations, including the advantages and disadvantages of operations input to a project and models for managing value-adding during project development, implementation and debottlenecking.
Published: 2012

41. Putting professionalism and delivery of value-added healthcare at the heart of physician training and continuing professional development

Author: Scott, I, Phelps, G, Rubin, G., Gow, P., Kendall, P., Lane, G., Frost, G., Yee, K.C., Scott, I, Phelps, G, Rubin, G., Gow, P., Kendall, P., Lane, G., Frost, G., and Yee, K.C.
Published: 2012

42. Cost-effective concentrator design.

Author: Lane G., MetPlant 2011: plant design and operating strategies: world’s best practice Perth, Western Australia 08-Aug-1109-Aug-11, Dakin P., Elwin D., Lane G., MetPlant 2011: plant design and operating strategies: world’s best practice Perth, Western Australia 08-Aug-1109-Aug-11, Dakin P., and Elwin D.
Abstract: Key factors for cost-effective plant design include optimising the plant footprint to reduce concrete, structural steel, piping and electrical/control cable and raceways, locating process areas close together, such as grinding close to carbon-in-leach/flotation, desorption and reagents close to carbon-in-leach/flotation, air/water services close to the plant and large drives close to the switch room, minimising the elevation of equipment such as run-of-mine bins, mills, cyclones, flotation cells and thickeners, avoiding the use of dominating pipe racks or large platform areas, using common platforms, stairs, pipe and cable ladder supports, keeping plate work and lining lean, with wear liners used only in the chute areas exposed to wear and not on all internals, and designing using a fit for purpose approach. Guidelines which need to be applied are discussed in relation to the orebody and its mineralogy, geometallurgy and process responses and equipment. Case studies are presented covering small and large concentrator plants., Key factors for cost-effective plant design include optimising the plant footprint to reduce concrete, structural steel, piping and electrical/control cable and raceways, locating process areas close together, such as grinding close to carbon-in-leach/flotation, desorption and reagents close to carbon-in-leach/flotation, air/water services close to the plant and large drives close to the switch room, minimising the elevation of equipment such as run-of-mine bins, mills, cyclones, flotation cells and thickeners, avoiding the use of dominating pipe racks or large platform areas, using common platforms, stairs, pipe and cable ladder supports, keeping plate work and lining lean, with wear liners used only in the chute areas exposed to wear and not on all internals, and designing using a fit for purpose approach. Guidelines which need to be applied are discussed in relation to the orebody and its mineralogy, geometallurgy and process responses and equipment. Case studies are presented covering small and large concentrator plants.
Published: 2011

43. Differences between the engineering cultures of Australia and Brazil.

Author: Fountain C., MetPlant 2011: plant design and operating strategies: world’s best practice Perth, Western Australia 08-Aug-1109-Aug-11, Lane G., Libanio P., Fountain C., MetPlant 2011: plant design and operating strategies: world’s best practice Perth, Western Australia 08-Aug-1109-Aug-11, Lane G., and Libanio P.
Abstract: Australian mining and engineering companies have increasingly been investing in the mining industry in Brazil, while some Brazilian mining companies and personnel have been moving in the opposite direction. There are significant differences in the approaches to engineering which may cause confusion for companies operating in the other country. Some are driven by tax regimes, labour costs or different settlement patterns and others are the result of different histories and pressures on the industries in the two nations. The key differences are described in the approach to feasibility studies, the type of engineering design and the project implementation phase. During the study phase in Brazil the owners are typically responsible for sample selection and metallurgical test work, flowsheet development, conceptual design, developing the project design basis, developing the contracting and implementation plan and study management, including supervision and management of the sub-consultants. Brazilian engineering companies are typically responsible for engineering deliverables and capital cost estimates, including material take-offs, rates and equipment pricing. Australian engineering companies are typically responsible for sample selection and metallurgical test work, flowsheet development, conceptual design, developing the project design basis, engineering deliverables, developing the contracting and implementation plan, capital and operating cost estimates and study management. The owners are typically responsible for the overall study management and some supervision and management of sub-consultants. During the engineering phase in Brazil, the owners are typically responsible for developing the project design basis, procurement, contracting strategy, construction management and commissioning, while engineering company services are typically limited to front-end engineering design and detailed design and assistance with the development of procurement packages. Most Aus, Australian mining and engineering companies have increasingly been investing in the mining industry in Brazil, while some Brazilian mining companies and personnel have been moving in the opposite direction. There are significant differences in the approaches to engineering which may cause confusion for companies operating in the other country. Some are driven by tax regimes, labour costs or different settlement patterns and others are the result of different histories and pressures on the industries in the two nations. The key differences are described in the approach to feasibility studies, the type of engineering design and the project implementation phase. During the study phase in Brazil the owners are typically responsible for sample selection and metallurgical test work, flowsheet development, conceptual design, developing the project design basis, developing the contracting and implementation plan and study management, including supervision and management of the sub-consultants. Brazilian engineering companies are typically responsible for engineering deliverables and capital cost estimates, including material take-offs, rates and equipment pricing. Australian engineering companies are typically responsible for sample selection and metallurgical test work, flowsheet development, conceptual design, developing the project design basis, engineering deliverables, developing the contracting and implementation plan, capital and operating cost estimates and study management. The owners are typically responsible for the overall study management and some supervision and management of sub-consultants. During the engineering phase in Brazil, the owners are typically responsible for developing the project design basis, procurement, contracting strategy, construction management and commissioning, while engineering company services are typically limited to front-end engineering design and detailed design and assistance with the development of procurement packages. Most Aus
Published: 2011

44. Recent metallurgical developments and their impact on minerals project execution.

Author: Meka Z., XXV International Mineral Processing Congress: IMPC 2010 Brisbane, Australia 06-Sep-1010-Sep-10, Lane G., Meka Z., XXV International Mineral Processing Congress: IMPC 2010 Brisbane, Australia 06-Sep-1010-Sep-10, and Lane G.
Abstract: The effect of new technologies on the design and engineering of mineral processing plants is discussed, with particular reference to larger capacity equipment, new flow sheet concepts, the simplification of interfaces between processes and new project strategies. Ausenco's work in this area is illustrated with two brief case studies on the Sepon copper and the Phu Kham copper-gold projects in Laos., The effect of new technologies on the design and engineering of mineral processing plants is discussed, with particular reference to larger capacity equipment, new flow sheet concepts, the simplification of interfaces between processes and new project strategies. Ausenco's work in this area is illustrated with two brief case studies on the Sepon copper and the Phu Kham copper-gold projects in Laos.
Published: 2010

45. USMC's Lack of Human Intelligence Doctrine

Author: MARINE CORPS COMBAT DEVELOPMENT COMMAND QUANTICO VA, Lane, G. M., MARINE CORPS COMBAT DEVELOPMENT COMMAND QUANTICO VA, and Lane, G. M.
Abstract: The Department of Defense interrogation policy has made it difficult for military interrogators to conduct intelligence interrogations in the Global War on Terror. During the Cold War, the practice of intelligence interrogation did not receive nearly the amount of scrutiny it has recently. As long as interrogators and handlers abided by applicable articles in the Geneva Convention, intelligence interrogations during conflicts such as the Balkans, Restore Hope, and Desert Storm went largely unnoticed. During 2004, the second year of Operation Iraqi Freedom, scandal arose in Abu Ghraib Prison outside of Baghdad, putting the art of human intelligence (HUMINT) collection at the center of international attention. As a result of investigations and Congressional hearings, the US Army has had to redefine the way it conducts HUMINT operations. This change has affected Counterintelligence/Human Intelligence (CIHUMINT) Marines who rely on Army publications used for the conduct of HUMINT operations by Counterintelligence/HUMINT Marines. The Marine Corps needs its own HUMINT doctrine so that collectors can conduct HUMINT operations, have clear guidance, and be free from reliance on Army Doctrine.
Published: 2009

46. What can go wrong in comminution circuit design?

Author: Bailey C., Tenth Mill Operators' Conference 2009 Adelaide, South Australia 12-Oct-0914-Oct-09, Lane G., Morrell S., Staples P., Bailey C., Tenth Mill Operators' Conference 2009 Adelaide, South Australia 12-Oct-0914-Oct-09, Lane G., Morrell S., and Staples P.
Abstract: The design of all comminution circuits depends on the analysis of test data, and this becomes more important for the treatment of harder, more competent, ores. An understanding of the principles involved in the various test methods and the interpretation of the data will help to reduce the risk to project viability when designing the comminution equipment. The use of bond crushing (impact) and rod work indices, and various SAG mill-specific energy tests, is discussed, and the analysis of the data illustrated with the aid of case studies., The design of all comminution circuits depends on the analysis of test data, and this becomes more important for the treatment of harder, more competent, ores. An understanding of the principles involved in the various test methods and the interpretation of the data will help to reduce the risk to project viability when designing the comminution equipment. The use of bond crushing (impact) and rod work indices, and various SAG mill-specific energy tests, is discussed, and the analysis of the data illustrated with the aid of case studies.
Published: 2009

47. Developments in processing to match future mining opportunities.

Author: Lane G., Future mining: 1st international future mining conference and exhibition 2008 Sydney, New South Wales 19-Nov-0821-Nov-08, Fountain C., La Brooy S., Lane G., Future mining: 1st international future mining conference and exhibition 2008 Sydney, New South Wales 19-Nov-0821-Nov-08, Fountain C., and La Brooy S.
Abstract: Some of the likely developments in mineral processing that will occur over the next 20 years are reviewed. The challenges inherent in adapting to lower-grade and more complex materials might be exacerbated by such factors as the availability of water and low-cost energy. In underground mining, higher energy costs are likely to foster further developments in underground pre-concentration, especially for ores that can be upgraded at relatively coarse sizes. The adoption of underground crushing could also render material amenable to semi-dry pre-concentration options such as might be achieved by the rotary classifier developed by CSIRO and being commercialised by RCR Tomlinson, or more modern versions of the hand-sorting of ore that use sensors based on colour or other suitable rock properties. The cement industry and some gold roasters have used the alternative of dry grinding and classification, which might also have a part to play in dry processing. There is also likely to be increased interest in options such as in situ leaching that further minimise the surface disturbance. Underground operations will have to balance the energy savings from reducing the amount of material brought to the surface and reduced surface disturbance against the practical limitations of installing and maintaining processing equipment underground. On the other hand, surface disturbance and energy issues in open-cut operations will be balanced by potentially lower mining costs and higher overall recovery from the deposit., Some of the likely developments in mineral processing that will occur over the next 20 years are reviewed. The challenges inherent in adapting to lower-grade and more complex materials might be exacerbated by such factors as the availability of water and low-cost energy. In underground mining, higher energy costs are likely to foster further developments in underground pre-concentration, especially for ores that can be upgraded at relatively coarse sizes. The adoption of underground crushing could also render material amenable to semi-dry pre-concentration options such as might be achieved by the rotary classifier developed by CSIRO and being commercialised by RCR Tomlinson, or more modern versions of the hand-sorting of ore that use sensors based on colour or other suitable rock properties. The cement industry and some gold roasters have used the alternative of dry grinding and classification, which might also have a part to play in dry processing. There is also likely to be increased interest in options such as in situ leaching that further minimise the surface disturbance. Underground operations will have to balance the energy savings from reducing the amount of material brought to the surface and reduced surface disturbance against the practical limitations of installing and maintaining processing equipment underground. On the other hand, surface disturbance and energy issues in open-cut operations will be balanced by potentially lower mining costs and higher overall recovery from the deposit.
Published: 2008

48. When does further processing at the mine site make sense?

Author: Fountain C., MetPlant 2008: metallurgical plant design and operating strategies Perth, Western Australia 18-Aug-0819-Aug-08, La Brooy S., Lane G., Fountain C., MetPlant 2008: metallurgical plant design and operating strategies Perth, Western Australia 18-Aug-0819-Aug-08, La Brooy S., and Lane G.
Abstract: The decline in mine-site pyro- and hydrometallurgical processing in recent years has been driven by a number of economic and social factors, including increasing capital costs associated with emission controls, the existence of large facilities that toll-smelt or buy concentrates or ores, the increase in the number of Chinese smelters, poor mine-site infrastructure and an increasing reluctance by skilled people to work in remote areas. Circumstances are discussed that favour mine-site processing including the difficulty in producing a marketable product without it, problems in concentrating valuable minerals such as fine, disseminated Au, high transport costs, low-cost and simple process flow sheets, environmental considerations and government fiat. A key action in developing a new deposit is a value-chain analysis to understand the logical processing endpoint, which will depend on the type of mineral mined and the location of the mine and may be affected by government incentives or subsidies. On-site processing facilities will be easier to justify in times when demand for processing exceeds global capacity. The situations are discussed for Al, Cu, Au, Fe, Pb and Ni., The decline in mine-site pyro- and hydrometallurgical processing in recent years has been driven by a number of economic and social factors, including increasing capital costs associated with emission controls, the existence of large facilities that toll-smelt or buy concentrates or ores, the increase in the number of Chinese smelters, poor mine-site infrastructure and an increasing reluctance by skilled people to work in remote areas. Circumstances are discussed that favour mine-site processing including the difficulty in producing a marketable product without it, problems in concentrating valuable minerals such as fine, disseminated Au, high transport costs, low-cost and simple process flow sheets, environmental considerations and government fiat. A key action in developing a new deposit is a value-chain analysis to understand the logical processing endpoint, which will depend on the type of mineral mined and the location of the mine and may be affected by government incentives or subsidies. On-site processing facilities will be easier to justify in times when demand for processing exceeds global capacity. The situations are discussed for Al, Cu, Au, Fe, Pb and Ni.
Published: 2008

49. Design of a large-scale concentrator for treatment of a copper skarn orebody.

Author: Glatthaar J., Ninth mill operators' conference, Fremantle, Western Australia, 19-21 Mar. 2007, Hayward T., Lane G., Phillips M., Glatthaar J., Ninth mill operators' conference, Fremantle, Western Australia, 19-21 Mar. 2007, Hayward T., Lane G., and Phillips M.
Abstract: A feasibility study was completed in 2006 for the Phu Kham, Laos, Cu-Au project involving a mining and processing operation treating 12 000 000 tpa of ore averaging 0.56% Cu and 0.25 g/t Au to produce an annual average 200 000 t of concentrate containing 25% Cu. The plant design incorporates a single processing line including a gyratory crusher, overland conveyor, coarse ore stockpile, SAG and ball mill grinding circuit, flotation circuit including regrind and three stages of cleaning, concentrate dewatering and concentrate load-out facilities. The mineralisation comprises two principal styles, stockwork-disseminated and banded-massive sulphide within skarn limits. Primary Cu occurs as chalcopyrite and secondary sulphide minerals. Both types of ore contain relatively high proportions of pyrite and the flotation metallurgy is characterised by the need to reject a high proportion of the pyrite during differential flotation. The rejection of pyrite is accompanied by the rejection of some Cu and Au. The design concepts for the concentrator were influenced by the need to provide a low capital-cost approach due to the relatively low ore grade and the modest metallurgical recovery., A feasibility study was completed in 2006 for the Phu Kham, Laos, Cu-Au project involving a mining and processing operation treating 12 000 000 tpa of ore averaging 0.56% Cu and 0.25 g/t Au to produce an annual average 200 000 t of concentrate containing 25% Cu. The plant design incorporates a single processing line including a gyratory crusher, overland conveyor, coarse ore stockpile, SAG and ball mill grinding circuit, flotation circuit including regrind and three stages of cleaning, concentrate dewatering and concentrate load-out facilities. The mineralisation comprises two principal styles, stockwork-disseminated and banded-massive sulphide within skarn limits. Primary Cu occurs as chalcopyrite and secondary sulphide minerals. Both types of ore contain relatively high proportions of pyrite and the flotation metallurgy is characterised by the need to reject a high proportion of the pyrite during differential flotation. The rejection of pyrite is accompanied by the rejection of some Cu and Au. The design concepts for the concentrator were influenced by the need to provide a low capital-cost approach due to the relatively low ore grade and the modest metallurgical recovery.
Published: 2007

50. Some observations regarding SAG milling.

Author: Lane G., Ninth mill operators' conference, Fremantle, Western Australia, 19-21 Mar. 2007, Lane G., and Ninth mill operators' conference, Fremantle, Western Australia, 19-21 Mar. 2007
Abstract: The main factors are discussed that affect breakage in a semiautogenous grinding mill, based on modelling studies, pilot plant operations, grinding circuit design and operational reviews for various projects, in particular the Cadia Hill, New South Wales, Fort Knox, Alaska, and Cortez, Nevada, Au mines. The main conclusions are that the main purpose of mill lifters is to reduce mill liner wear and not to promote rock breakage, the theory that balls impacting the toe of the charge is a dominant form of breakage is incorrect and fines production is primarily a function of the rock load mass, with a secondary dependence on ball load for any given circuit configuration., The main factors are discussed that affect breakage in a semiautogenous grinding mill, based on modelling studies, pilot plant operations, grinding circuit design and operational reviews for various projects, in particular the Cadia Hill, New South Wales, Fort Knox, Alaska, and Cortez, Nevada, Au mines. The main conclusions are that the main purpose of mill lifters is to reduce mill liner wear and not to promote rock breakage, the theory that balls impacting the toe of the charge is a dominant form of breakage is incorrect and fines production is primarily a function of the rock load mass, with a secondary dependence on ball load for any given circuit configuration.
Published: 2007

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