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19 results on '"Bakes, S."'

1. Spherical-oblate shape coexistence in $^{94}$Zr from a model-independent analysis

Author

Marchini, N., Rocchini, M., Zielinska, M., Nannini, A., Doherty, D. T., Gavrielov, N., Garrett, P. E., Hadynska-Klek, K., Goasduff, A., Testov, D., Bakes, S. D., Bazzacco, D., Benzoni, G., Berry, T., Brugnara, D., Camera, F., Catford, W. N., Chiari, M., Galtarossa, F., Gelli, N., Gottardo, A., Gozzelino, A., Illana, A., Keatings, J., Mengoni, D., Morrison, L., Napoli, D. R., Ottanelli, M., Ottanelli, P., Pasqualato, G., Recchia, F., Riccetto, S., Scheck, M., Siciliano, M., Dobon, J. J. Valiente, and Zanon, I.

Subjects
Nuclear Experiment, Nuclear Theory
Abstract

Low-lying states of $^{94}$Zr were investigated via low-energy multi-step Coulomb excitation. From the measured $\gamma$-ray yields, 13 reduced transition probabilities between low-spin states were determined, together with the spectroscopic quadrupole moments of the $2_{1,2}^+$ states. Based on this information, for the first time in the Zr isotopic chain, the shapes of the $0_{1,2}^+$ states including their deformation softness were inferred in a model-independent way using the quadrupole sum rules approach. The ground state of $^{94}$Zr possesses a rather diffuse shape associated with a spherical configuration, while the $0_2^+$ state is oblate and more strongly deformed. The observed features of shape coexistence in $^{94}$Zr are in agreement with Monte-Carlo shell-model predictions, and the present results are vital to refine the IBM-CM description of the Zr isotopes around $A\approx 100$ in terms of an intertwined quantum phase transition., Comment: 6 pages, 3 figures

Published
2024

2. One-neutron stripping process in the 209Bi(6Li, 5Li)210Bi* reaction reaction

Author

Zhang, Gao-Long, Jiao, Zhen-Wei, Zhang, Guang-Xin, Cardozo, E. N., Paes, B., Hu, Shi-Peng, Qian, Jian-Qiang, Mengoni, Daniele, Qu, Wei-Wei, Li, Cong-Bo, Zheng, Yun, Zhang, Huan-Qiao, Sun, Hui-Bin, Wang, Nan, Zhang, Chun-Lei, Valiente-Dobón, J. J., Testov, D., Mazzocco, M., Gozzelino, A., Parascandolo, C., Pierroutsakou, D., La Commara, M., Goasduff, A., Bazzacco, D., Napoli, D. R., Galtarossa, F., Recchia, F., Illana, A., Bakes, S., Zanon, I., Aydin, S., de Angelis, G., Siciliano, M., Menegazzo, R., Lenzi, S. M., Akkoyun, S., Canto, L. F., and Lubian, J.

Published
2024
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3. High resolution $\gamma$-ray spectroscopy using GALILEO array

Author

Testov, D., Valiente-Dobón, J. J., Mengoni, D., Recchia, F., Goasduff, A., Boso, A., Lenzi, S., de Angelis, G., Bakes, S., Boiano, C., Cederwall, B., Colucci, G., Cicerchia, M., Čolović, P., Didierjean, F., Doncel, M., {n}as, J. A. Due\, Galtarossa, F., Gozzelino, A., Hadyńska-Klȩk, K., Isocrate, R., Jaworski, G., John, P. R., Liu, H., Lunardi, S., Menegazzo, R., Mentana, A., Modamio, V., Nannini, A., Napoli, D. R., Palacz, M., Pasqualato, G., Rocchini, M., Riccetto, S., Saygi, B., Sahin, E., Siciliano, M., Sobolev, Yu., and Szilner, S.

Subjects
Nuclear Experiment
Abstract

The GALILEO $\gamma$-ray spectrometer has been constructed at the Legnaro National Laboratory of INFN (LNL-INFN). It can be coupled to advanced ancillary devices which allows nuclear structure studies employing the variety of in-beam $\gamma$-ray spectroscopy methods. Such studies benefit from reactions induced by the intense stable beams delivered by the Tandem-ALPI-PIAVE accelerator complex and by the radioactive beams which will be provided by the SPES facility. In this paper we outline two experiments performed within the experimental campaign at GALILEO coupled to the EUCLIDES Si-ball and the Neutron Wall array. The first one was aimed at spectroscopic studies in A=31 mirror nuclei and the second one at measurements of lifetimes of excited states in nuclei in the vicinity of $^{100}$Sn., Comment: The IX International Symposium on EXOtic Nuclei (EXON-2018)

Published
2019

5. Controlling a new plasma regime.

Author

Lennholm, M., Aleiferis, S., Bakes, S., Bardsley, O. P., van Berkel, M., Casson, F. J., Chaudry, F., Conway, N. J., Hender, T. C., Henderson, S. S., Kool, B., Lafferty, M., Meyer, H. F., Mitchell, J., Mitra, A., Osawa, R., Otin, R., Parrot, A., Thompson, T., and Xia, G.

Subjects
PLASMA confinement, LATENT heat of fusion, ROBUST control, TOKAMAKS, ROBUST programming
Abstract

Success of the UK's Spherical Tokamak for Energy Production (STEP) programme requires a robust plasma control system. This system has to guide the plasma from initiation to the burning phase, maintain it there, produce the desired fusion power for the desired duration and then terminate the plasma safely. This has to be done in a challenging environment with limited sensors and without overloading plasma-facing components. The plasma parameters and the operational regime in the STEP prototype will be very different from tokamaks, which are presently in operation. During fusion burn, the plasma regime in STEP will be self-organizing, adding further complications to the plasma control system design. This article describes the work to date on the design of individual controllers for plasma shape and position, magneto hydrodynamic instabilities, heat load and fusion power. Having studied 'normal' operation, the article discusses the philosophy of how the system will handle exceptions, when things do not go exactly as planned. This article is part of the theme issue 'Delivering Fusion Energy – The Spherical Tokamak for Energy Production (STEP)'. [ABSTRACT FROM AUTHOR]

Published
2024
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6. Lifetime measurements using a plunger device and the EUCLIDES Si array at the GALILEO [formula omitted]-ray spectrometer

Author

Bradbury, J., Testov, D., Bakes, S., Goasduff, A., Mengoni, D., Valiente-Dobón, J.J., de Angelis, G., Bazzacco, D., Boiano, C., Boso, A., Cederwall, B., Cicerchia, M., Colucci, G., Čolović, P., Didierjean, F., Doncel, M., Dueñas, J.A., Galtarossa, F., Gozzelino, A., Hadyńska-Klȩk, K., Jaworski, G., John, P.R., Liu, H., Lenzi, S., Lunardi, S., Menegazzo, R., Mentana, A., Müller-Gatermann, C., Napoli, D.R., Pasqualato, G., Recchia, F., Rocchini, M., Riccetto, S., Saygi, B., Siciliano, M., Sobolev, Yu., and Szilner, S.

Published
2020
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7. Octupole correlations near $^{110}$Te

Author

Testov, D. A., Bakes, S., Valiente-Dobon, J. J., Goasduff, A., Frauendorf, S., Nowacki, F., Rodriguez, T. R., de Angelis, G., Bazzacco, D., Boiano, C., Boso, A., Cederwall, B., Cicerchia, M., Čolović, Petra, Colucci, G., Didierjean, F., Doncel, M., Duenas, J. A., Galtarossa, F., Gozzelino, A., Hadynska-Klek, K., Jaworski, G., John, P. R., Lenzi, S., Liu, H., Lunardi, S., Menegazzo, R., Mengoni, D., Mentana, A., Napoli, D. R., Pasqualato, G., Recchia, F., Riccetto, S., Robledo, L. M., Rocchini, M., Saygi, B., Siciliano, M., Sobolev, Yu., Szilner, Suzana, Institut Pluridisciplinaire Hubert Curien (IPHC), and Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université de Strasbourg (UNISTRA)-Centre National de la Recherche Scientifique (CNRS)

Subjects
Nuclear Theory, [PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex], Nuclear Structure, nucleon-nucleon interactions, collective levels, lifetimes
Abstract

International audience; The lifetime of the 2+ and 9−, 11−, 13−, 15− states in the neutron-deficient Te110 was measured for the first time using the recoil distance Doppler shift technique. The reported value of the reduced transition probability B(E2;0g.s+→2+)=4.3(8)×103e2fm4 supports the systematic for even-mass Te isotopes and was interpreted in the framework of the large-scale shell model and cranked shell model calculations. The measured reduced transition probabilities in the negative-parity yrast band revealed the upward trend towards the high spins. The enhanced collectivity is discussed in terms of the tilted axis cranking approach and the symmetry configuration mixing method with the Gogny D1S interaction.

Published
2021

8. Octupole correlations near Te 110

Author

Testov, D. A., Bakes, S., Valiente-Dobón, J. J., Goasduff, A., Frauendorf, S., Nowacki, F., Rodríguez, T. R., De Angelis, G., Bazzacco, D., Boiano, C., Boso, A., Cederwall, Bo, Cicerchia, M., Čolović, P., Colucci, G., Didierjean, F., Doncel, M., Dueñas, J. A., Galtarossa, F., Gozzelino, A., Hadyńska-Klȩk, K., Jaworski, G., John, P. R., Lenzi, S., Liu, Haichun, Lunardi, S., Menegazzo, R., Mengoni, D., Mentana, A., Napoli, D. R., Pasqualato, G., Recchia, F., Riccetto, S., Robledo, L. M., Rocchini, M., Saygi, B., Siciliano, M., Sobolev, Y., Szilner, S., Testov, D. A., Bakes, S., Valiente-Dobón, J. J., Goasduff, A., Frauendorf, S., Nowacki, F., Rodríguez, T. R., De Angelis, G., Bazzacco, D., Boiano, C., Boso, A., Cederwall, Bo, Cicerchia, M., Čolović, P., Colucci, G., Didierjean, F., Doncel, M., Dueñas, J. A., Galtarossa, F., Gozzelino, A., Hadyńska-Klȩk, K., Jaworski, G., John, P. R., Lenzi, S., Liu, Haichun, Lunardi, S., Menegazzo, R., Mengoni, D., Mentana, A., Napoli, D. R., Pasqualato, G., Recchia, F., Riccetto, S., Robledo, L. M., Rocchini, M., Saygi, B., Siciliano, M., Sobolev, Y., and Szilner, S.

Abstract

The lifetime of the 2+ and 9-, 11-, 13-, 15- states in the neutron-deficient Te110 was measured for the first time using the recoil distance Doppler shift technique. The reported value of the reduced transition probability B(E2;0g.s+→2+)=4.3(8)×103e2fm4 supports the systematic for even-mass Te isotopes and was interpreted in the framework of the large-scale shell model and cranked shell model calculations. The measured reduced transition probabilities in the negative-parity yrast band revealed the upward trend towards the high spins. The enhanced collectivity is discussed in terms of the tilted axis cranking approach and the symmetry configuration mixing method with the Gogny D1S interaction., QC 20220922

Published
2021
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9. Octupole correlations near Te110

Author

Testov, D. A., primary, Bakes, S., additional, Valiente-Dobón, J. J., additional, Goasduff, A., additional, Frauendorf, S., additional, Nowacki, F., additional, Rodríguez, T. R., additional, de Angelis, G., additional, Bazzacco, D., additional, Boiano, C., additional, Boso, A., additional, Cederwall, B., additional, Cicerchia, M., additional, Čolović, P., additional, Colucci, G., additional, Didierjean, F., additional, Doncel, M., additional, Dueñas, J. A., additional, Galtarossa, F., additional, Gozzelino, A., additional, Hadyńska-Klęk, K., additional, Jaworski, G., additional, John, P. R., additional, Lenzi, S., additional, Liu, H., additional, Lunardi, S., additional, Menegazzo, R., additional, Mengoni, D., additional, Mentana, A., additional, Napoli, D. R., additional, Pasqualato, G., additional, Recchia, F., additional, Riccetto, S., additional, Robledo, L. M., additional, Rocchini, M., additional, Saygi, B., additional, Siciliano, M., additional, Sobolev, Yu., additional, and Szilner, S., additional

Published
2021
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10. Lifetime measurements using a plunger device and the EUCLIDES Si array at the GALILEO gamma-ray spectrometer

Author

Bradbury, J., Testov, D., Bakes, S., Goasduff, A., Mengoni, D., Valiente-Dobon, J. J., de Angelis, G., Bazzacco, D., Boiano, C., Boso, A., Cederwall, B., Cicerchia, M., Colucci, G., Colovic, P., Didierjean, F., Doncel, M., Duenas, J. A., Galtarossa, F., Gozzelino, A., Hadynska-Klek, K., Jaworski, G., John, P. R., Liu, H., Lenzi, S., Lunardi, S., Menegazzo, R., Mentana, A., Mueller-Gatermann, C., Napoli, D. R., Pasqualato, G., Recchia, F., Rocchini, M., Riccetto, S., Saygi, B., Siciliano, M., Sobolev, Yu, Szilner, S., Bradbury, J., Testov, D., Bakes, S., Goasduff, A., Mengoni, D., Valiente-Dobon, J. J., de Angelis, G., Bazzacco, D., Boiano, C., Boso, A., Cederwall, B., Cicerchia, M., Colucci, G., Colovic, P., Didierjean, F., Doncel, M., Duenas, J. A., Galtarossa, F., Gozzelino, A., Hadynska-Klek, K., Jaworski, G., John, P. R., Liu, H., Lenzi, S., Lunardi, S., Menegazzo, R., Mentana, A., Mueller-Gatermann, C., Napoli, D. R., Pasqualato, G., Recchia, F., Rocchini, M., Riccetto, S., Saygi, B., Siciliano, M., Sobolev, Yu, and Szilner, S.

Abstract

The GALILEO gamma-ray spectrometer, installed at the Laboratori Nazionali di Legnaro (LNL), benefits from intense stable beams provided by the Tandem-ALPI-PIAVE accelerator complex and from radioactive beams to be delivered in the near future by the SPES facility. The spectrometer is complemented with a variety of ancillary devices to allow for nuclear structure and reaction studies. The 4 pi Si-ball array EUCLIDES coupled to the GALILEO gamma-ray spectrometer represents one of the commonly used setup for experiments aiming at spectroscopic studies. High-efficiency detection of light-charged particles in a fusion-evaporation reaction guarantees good discrimination of different reaction channels and provides essential information for the kinematic reconstruction. In this paper we discuss a configuration of the EUCLIDES array developed for the lifetime measurements of nuclear excited states populated in a fusion-evaporation reaction. In such a configuration a part of the EUCLIDES detectors is disassembled allowing for the installation of a plunger device in the reaction chamber. The reduced configuration of EUCLIDES provides high detection efficiency necessary for reliable light charged-particle discrimination. We report on the commissioning experiment focused on the Ni-58(Ni-58,3p)I-113 reaction. The lifetimes of 11/2(-) and 15/2(-) states were measured by applying the Recoil Distance Doppler Shift method to be equal to 206(20) ps and 7.9(12) ps correspondingly and were in good agreement with the values cited in the literature. Thus, the combination of the GALILEO and EUCLIDES arrays, and the plunger device has resulted in a powerful experimental setup to determine lifetimes of excited states in neutron-deficient nuclei in the picosecond range.

Published
2020

11. Lifetime measurements using a plunger device and the EUCLIDES Si array at the GALILEO γ-ray spectrometer

Author

Bradbury, J., primary, Testov, D., additional, Bakes, S., additional, Goasduff, A., additional, Mengoni, D., additional, Valiente-Dobón, J.J., additional, de Angelis, G., additional, Bazzacco, D., additional, Boiano, C., additional, Boso, A., additional, Cederwall, B., additional, Cicerchia, M., additional, Colucci, G., additional, Čolović, P., additional, Didierjean, F., additional, Doncel, M., additional, Dueñas, J.A., additional, Galtarossa, F., additional, Gozzelino, A., additional, Hadyńska-Klȩk, K., additional, Jaworski, G., additional, John, P.R., additional, Liu, H., additional, Lenzi, S., additional, Lunardi, S., additional, Menegazzo, R., additional, Mentana, A., additional, Müller-Gatermann, C., additional, Napoli, D.R., additional, Pasqualato, G., additional, Recchia, F., additional, Rocchini, M., additional, Riccetto, S., additional, Saygi, B., additional, Siciliano, M., additional, Sobolev, Yu., additional, and Szilner, S., additional

Published
2020
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12. New level scheme and shell model description of Rn212

Author

Li, C. B., primary, Zhang, G. L., additional, Yuan, C. X., additional, Zhang, G. X., additional, Hu, S. P., additional, Qu, W. W., additional, Zheng, Y., additional, Zhang, H. Q., additional, Mengoni, D., additional, Testov, D., additional, Valiente-Dobón, J. J., additional, Sun, H. B., additional, Wang, N., additional, Wu, X. G., additional, Li, G. S., additional, Mazzocco, M., additional, Gozzelino, A., additional, Parascandolo, C., additional, Pierroutsakou, D., additional, La Commara, M., additional, Recchia, F., additional, Sison, A. I., additional, Bakes, S., additional, Zanon, I., additional, Aydin, S., additional, and Bazzacco, D., additional

Published
2020
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13. High Resolution γ-Ray Spectrometry Using Galileo Array

Author

Testov, D., Valiente-Dobon, J. J., Mengoni, D., Recchia, F., Goasduff, A., Boso, A., Lenzi, S., de Angelis, G., Bakes, S., Boiano, C., Cederwall, Bo, Colucci, G., Cicerchia, M., Colovic, P., Didierjean, F., Doncel, M., Duenas, J. A., Galtarossa, F., Gozzelino, A., Hadynska-Klek, K., Isocrate, R., Jaworski, G., John, P. R., Liu, H., Lunardi, S., Menegazzo, R., Mentana, A., Modamio, V., Nannini, A., Napoli, D. R., Palacz, M., Pasqualato, G., Rocchini, M., Riccetto, S., Saygi, B., Sahin, E., Siciliano, M., Sobolev, Y., Szilner, S., Testov, D., Valiente-Dobon, J. J., Mengoni, D., Recchia, F., Goasduff, A., Boso, A., Lenzi, S., de Angelis, G., Bakes, S., Boiano, C., Cederwall, Bo, Colucci, G., Cicerchia, M., Colovic, P., Didierjean, F., Doncel, M., Duenas, J. A., Galtarossa, F., Gozzelino, A., Hadynska-Klek, K., Isocrate, R., Jaworski, G., John, P. R., Liu, H., Lunardi, S., Menegazzo, R., Mentana, A., Modamio, V., Nannini, A., Napoli, D. R., Palacz, M., Pasqualato, G., Rocchini, M., Riccetto, S., Saygi, B., Sahin, E., Siciliano, M., Sobolev, Y., and Szilner, S.

Abstract

The GALILEO γ-ray spectrometer has been constructed at the Legnaro National Laboratory of INFN (LNL-INFN). It can be coupled to advanced ancillary devices which allows nuclear structure studies employing the variety of in-beam γ-ray spectroscopy methods. Such studies benefit from reactions induced by the intense stable beams delivered by the Tandem-ALPI-PIAVE accelerator complex and by the radioactive beams which will be provided by the SPES facility. In this paper we outline two experiments performed within the experimental campaign at GALILEO coupled to the EUCLIDES Si-ball and the Neutron Wall array. The first one was aimed at spectroscopic studies in A=31 mirror nuclei and the second one at measurements of lifetimes of excited states in nuclei in the vicinity of 100Sn., QC 20210914

Published
2019
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14. High Resolution $\gamma$-Ray Spectroscopy Using GALILEO Array

Author

Testov, D., Valiente-Dobón, J. J., Mengoni, D., Recchia, F., Goasduff, A., Boso, A., Lenzi, S., de Angelis, G., Bakes, S., Boiano, C., Cederwall, B., Colucci, G., Cicerchia, M., Čolović, P., Didierjean, F., Doncel, M., {n}as, J. A. Due, Galtarossa, F., Gozzelino, A., Hadyńska-Klȩk, K., Isocrate, R., Jaworski, G., John, P. R., Liu, H., Lunardi, S., Menegazzo, R., Mentana, A., Modamio, V., Nannini, A., Napoli, D. R., Palacz, M., Pasqualato, G., Rocchini, M., Riccetto, S., Saygi, B., Sahin, E., Siciliano, M., Sobolev, Yu., Szilner, S., Institut Pluridisciplinaire Hubert Curien (IPHC), Université de Strasbourg (UNISTRA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), and Université de Strasbourg (UNISTRA)-Centre National de la Recherche Scientifique (CNRS)

Subjects
Physics, business.industry, Astrophysics::High Energy Astrophysical Phenomena, High resolution, nuclear state lifetime, [PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex], 01 natural sciences, Optics, γ-ray spectrometer, 0103 physical sciences, nuclear structure, Physics::Accelerator Physics, Galileo (vibration training), business, Spectroscopy, Nuclear Experiment, γ-Ray spectroscopy, 010301 acoustics
Abstract

The GALILEO $\gamma$-ray spectrometer has been constructed at the Legnaro National Laboratory of INFN (LNL-INFN). It can be coupled to advanced ancillary devices which allows nuclear structure studies employing the variety of in-beam $\gamma$-ray spectroscopy methods. Such studies benefit from reactions induced by the intense stable beams delivered by the Tandem-ALPI-PIAVE accelerator complex and by the radioactive beams which will be provided by the SPES facility. In this paper we outline two experiments performed within the experimental campaign at GALILEO coupled to the EUCLIDES Si-ball and the Neutron Wall array. The first one was aimed at spectroscopic studies in A=31 mirror nuclei and the second one at measurements of lifetimes of excited states in nuclei in the vicinity of $^{100}$Sn., Comment: The IX International Symposium on EXOtic Nuclei (EXON-2018)

Published
2018

15. High Resolution γ-Ray Spectroscopy Using GALILEO Array

Author

Testov, D., primary, Valiente-Dobón, J. J., additional, Mengoni, D., additional, Recchia, F., additional, Goasduff, A., additional, Boso, A., additional, de Angelis, G., additional, Lenzi, S., additional, Bakes, S., additional, Boiano, C., additional, Cederwall, B., additional, Colucci, G., additional, Cicerchia, M., additional, Čolović, P., additional, Didierjean, F., additional, Doncel, M., additional, Dueňas, J. A., additional, Galtarossa, F., additional, Gozzelino, A., additional, Hadyńska-Klęk, K., additional, Isocrate, R., additional, Jaworski, G., additional, John, P. R., additional, Liu, H., additional, Lunardi, S., additional, Menegazzo, R., additional, Mentana, A., additional, Modamio, V., additional, Nannini, A., additional, Napoli, D. R., additional, Palacz, M., additional, Pasqualato, G., additional, Rocchini, M., additional, Riccetto, S., additional, Saygi, B., additional, Sahin, E., additional, Siciliano, M., additional, Sobolev, Yu. G., additional, and Szilner, S., additional

Published
2019
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16. High resolution gamma-ray spectrometry using GALILEO array

Author

Testov, D., primary, Valiente-Dobon, J.J., additional, Mengoni, D., additional, Recchia, F., additional, Goasduff, A., additional, Boso, A., additional, Lenzi, S., additional, de Angelis, G., additional, Bakes, S., additional, Boiano, C., additional, Cederwall, B., additional, Colucci, G., additional, Cicerchia, M., additional, Colovic, P., additional, Didierjean, F., additional, Doncel, M., additional, Duenas, J.A., additional, Galtarossa, F., additional, Gozzelino, A., additional, Hadynska-Klek, K., additional, Isocrate, R., additional, Jaworski, G., additional, John, P.R., additional, Liu, H., additional, Lunardi, S., additional, Menegazzo, R., additional, Mentana, A., additional, Modamio, V., additional, Nannini, A., additional, Napoli, D.R., additional, Palacz, M., additional, Pasqualato, G., additional, Rocchini, M., additional, Riccetto, S., additional, Saygi, B., additional, Sahin, E., additional, Siciliano, M., additional, Sobolev, Yu., additional, and Szilner, S., additional

Published
2019
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17. New level scheme and shell model description of Rn 212

Author

J. J. Valiente-Dobón, D. Pierroutsakou, D. Bazzacco, W. W. Qu, D. A. Testov, A. I. Sison, A. Gozzelino, S. Aydin, F. Recchia, D. Mengoni, H. Q. Zhang, X. G. Wu, Yuanjie Zheng, G. L. Zhang, C. B. Li, I. Zanon, C. Parascandolo, Guangsheng Li, M. La Commara, Cenxi Yuan, H. B. Sun, Shi-Peng Hu, N. Wang, G. X. Zhang, M. Mazzocco, S. Bakes, Sabire Yazıcı Fen Edebiyat Fakültesi, Li, C. B., Zhang, G. L., Yuan, C. X., Zhang, G. X., Hu, S. P., Qu, W. W., Zheng, Y., Zhang, H. Q., Mengoni, D., Testov, D., Valiente-Dobon, J. J., Sun, H. B., Wang, N., Wu, X. G., Li, G. S., Mazzocco, M., Gozzelino, A., Parascandolo, C., Pierroutsakou, D., La Commara, M., Recchia, F., Sison, A. I., Bakes, S., Zanon, I., Aydin, S., and Bazzacco, D.

Subjects
Vibration, Physics, Valence (chemistry), 010308 nuclear & particles physics, 0103 physical sciences, SHELL model, Collective state, New Level Scheme, Atomic physics, 010306 general physics, 01 natural sciences, Multiplet, Shell Model
Abstract

Aydın, Sezgin ( Aksaray, Yazar ), Level structures of Rn212 have been studied by in-beam γ-ray spectroscopic methods using the Bi209(Li6,3n)Rn212 reaction at beam energies of 28, 30, and 34 MeV. A number of new nonyrast states based on πh9/24 and πh9/23f7/2 configurations have been identified. A 3(-) collective state is also proposed at 2121 keV, which is most likely formed by mixing the octupole vibration with the 3- member of the πh9/23i13/2 multiplet. The level scheme is compared with large-scale shell model calculations and discussed in terms of excitations of valence protons and without contributions from the Pb208 core. An overall excellent agreement is obtained for states that can be described in this model space.

Published
2020

18. Controlling a new plasma regime.

Author

Lennholm M, Aleiferis S, Bakes S, Bardsley OP, van Berkel M, Casson FJ, Chaudry F, Conway NJ, Hender TC, Henderson SS, Kool B, Lafferty M, Meyer HF, Mitchell J, Mitra A, Osawa R, Otin R, Parrot A, Thompson T, Xia G, and The Step Team

Abstract

Success of the UK's Spherical Tokamak for Energy Production (STEP) programme requires a robust plasma control system. This system has to guide the plasma from initiation to the burning phase, maintain it there, produce the desired fusion power for the desired duration and then terminate the plasma safely. This has to be done in a challenging environment with limited sensors and without overloading plasma-facing components. The plasma parameters and the operational regime in the STEP prototype will be very different from tokamaks, which are presently in operation. During fusion burn, the plasma regime in STEP will be self-organizing, adding further complications to the plasma control system design. This article describes the work to date on the design of individual controllers for plasma shape and position, magneto hydrodynamic instabilities, heat load and fusion power. Having studied 'normal' operation, the article discusses the philosophy of how the system will handle exceptions, when things do not go exactly as planned. This article is part of the theme issue 'Delivering Fusion Energy - The Spherical Tokamak for Energy Production (STEP)'.

Published
2024
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19. A clinician survey of using speech recognition for clinical documentation in the electronic health record.

Author

Goss FR, Blackley SV, Ortega CA, Kowalski LT, Landman AB, Lin CT, Meteer M, Bakes S, Gradwohl SC, Bates DW, and Zhou L

Subjects
Adult, Aged, Boston, Female, Humans, Male, Middle Aged, Perception, Surveys and Questionnaires, Workflow, Documentation methods, Electronic Health Records standards, Electronic Health Records statistics & numerical data, Health Personnel statistics & numerical data, Medical Errors statistics & numerical data, Speech physiology, Speech Recognition Software statistics & numerical data
Abstract

Objective: To assess the role of speech recognition (SR) technology in clinicians' documentation workflows by examining use of, experience with and opinions about this technology., Materials and Methods: We distributed a survey in 2016-2017 to 1731 clinician SR users at two large medical centers in Boston, Massachusetts and Aurora, Colorado. The survey asked about demographic and clinical characteristics, SR use and preferences, perceived accuracy, efficiency, and usability of SR, and overall satisfaction. Associations between outcomes (e.g., satisfaction) and factors (e.g., error prevalence) were measured using ordinal logistic regression., Results: Most respondents (65.3%) had used their SR system for under one year. 75.5% of respondents estimated seeing 10 or fewer errors per dictation, but 19.6% estimated half or more of errors were clinically significant. Although 29.4% of respondents did not include SR among their preferred documentation methods, 78.8% were satisfied with SR, and 77.2% agreed that SR improves efficiency. Satisfaction was associated positively with efficiency and negatively with error prevalence and editing time. Respondents were interested in further training about using SR effectively but expressed concerns regarding software reliability, editing and workflow., Discussion: Compared to other documentation methods (e.g., scribes, templates, typing, traditional dictation), SR has emerged as an effective solution, overcoming limitations inherent in other options and potentially improving efficiency while preserving documentation quality., Conclusion: While concerns about SR usability and accuracy persist, clinicians expressed positive opinions about its impact on workflow and efficiency. Faster and better approaches are needed for clinical documentation, and SR is likely to play an important role going forward., (Copyright © 2019 Elsevier B.V. All rights reserved.)

Published
2019
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