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Your search keyword '"Pira, C."' showing total 4 results
Start Over Author "Pira, C." Publication Type Magazines
4 results on '"Pira, C."'

1. Investigating the Superconducting Properties and Surface Morphology of Sputtered Nb Films on Cu Due to Laser Treatment

Author

Turner, Daniel Andrew, Malyshev, O. B., Burt, G., Seiler, E., Ries, R., Medvids, A., Onufrijevs, P., Valizadeh, R., Sublet, A., Pira, C., Chyhyrynets, E., Vogel, M., Leith, S., and Junginger, T.

Abstract

Bulk niobium is currently the material of choice for superconducting radio frequency (SRF) cavities and is a well matured process. However, it is possible that SRF cavities could be further improved beyond bulk Nb by sputtering thin Nb films onto Cu cavities. Copper has a greater thermal conductivity than Nb and is also easier to machine, while sputtering films on the surface reduces the amount of Nb used to fabricate the whole cavity. However, sputtering Nb on Cu produces other issues, for example, the surface quality of the Cu affects the quality of the Nb deposited on the surface and therefore the superconducting parameters. As the Nb on the surface is not perfect, the magnetic field produced by the RF can enter the cavity earlier than expected, producing RF losses, which can in turn lead to a quench. One approach is to treat the Nb post deposition by irradiating the surface using a laser to polish the surface of the Nb and increase the surface magnetic field that the cavity can maintain while remaining in the Meissner state. A magnetic field penetration experiment designed and built at Daresbury Laboratory has been used to measure the field of full flux penetration to characterize the effect of the laser treatment on the superconducting properties of the Nb. Surface characterization and the response of the Nb in a dc magnetic field have also been performed to try and provide an explanation for the change in the superconducting properties. The results demonstrate that the laser treatment can lead to an increase in the magnetic field at which the flux penetrates from one side of the sample to the other, thus it could potentially improve the performance of Nb coated RF cavities.

Published
2023
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2. Status of the CUORE and results from the CUORE-0 neutrinoless double beta decay experiments

Author

Sisti, M., Artusa, D.R., Avignone, F.T., Azzolini, O., Balata, M., Banks, T.I., Bari, G., Beeman, J., Bellini, F., Bersani, A., Biassoni, M., Brofferio, C., Bucci, C., Cai, X.Z., Camacho, A., Caminata, A., Canonica, L., Cao, X.G., Capelli, S., Cappelli, L., Carbone, L., Cardani, L., Casali, N., Cassina, L., Chiesa, D., Chott, N., Clemenza, M., Copello, S., Cosmelli, C., Cremonesi, O., Creswick, R.J., Cushman, J.S., Dafinei, I., Dally, A., Datskov, V., Dell'Oro, S., Deninno, M.M., Di Domizio, S., di Vacri, M.L., Drobizhev, A., Ejzak, L., Fang, D.Q., Farach, H.A., Faverzani, M., Fernandes, G., Ferri, E., Ferroni, F., Fiorini, E., Franceschi, M.A., Freedman, S.J., Fujikawa, B.K., Giachero, A., Gironi, L., Giuliani, A., Gorla, P., Gotti, C., Gutierrez, T.D., Haller, E.E., Han, K., Heeger, K.M., Hennings-Yeomans, R., Hickerson, K.P., Huang, H.Z., Kadel, R., Keppel, G., Kolomensky, Yu.G., Li, Y.L., Ligi, C., Lim, K.E., Liu, X., Ma, Y.G., Maiano, C., Maino, M., Martinez, M., Maruyama, R.H., Mei, Y., Moggi, N., Morganti, S., Napolitano, T., Nastasi, M., Nisi, S., Nones, C., Norman, E.B., Nucciotti, A., O'Donnell, T., Orio, F., Orlandi, D., Ouellet, J.L., Pagliarone, C.E., Pallavicini, M., Palmieri, V., Pattavina, L., Pavan, M., Pedretti, M., Pessina, G., Pettinacci, V., Piperno, G., Pira, C., Pirro, S., Pozzi, S., Previtali, E., Rosenfeld, C., Rusconi, C., Sala, E., Sangiorgio, S., Scielzo, N.D., Smith, A.R., Taffarello, L., Tenconi, M., Terranova, F., Tian, W.D., Tomei, C., Trentalange, S., Ventura, G., Vignati, M., Wang, B.S., Wang, H.W., Wielgus, L., Wilson, J., Winslow, L.A., Wise, T., Woodcraft, A., Zanotti, L., Zarra, C., Zhang, G.Q., Zhu, B.X., and Zucchelli, S.

Abstract

CUORE is a 741 kg array of TeO2bolometers for the search of neutrinoless double beta decay of 130Te. The detector is being constructed at the Laboratori Nazionali del Gran Sasso, Italy, where it will start taking data in 2015. If the target background of 0.01 counts/(keV⋅kg⋅y)will be reached, in five years of data taking CUORE will have a 1σhalf life sensitivity of 1026y. CUORE-0 is a smaller experiment constructed to test and demonstrate the performances expected for CUORE. The detector is a single tower of 52 CUORE-like bolometers that started taking data in spring 2013. The status and perspectives of CUORE will be discussed, and the first CUORE-0 data will be presented.

Published
2016
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3. Results of CUORE-0 and prospects for the CUORE experiment

Author

Canonica, L., Artusa, D.R., Avignone, F.T., Azzolini, O., Balata, M., Banks, T.I., Bari, G., Beeman, J., Bellini, F., Bersani, A., Biassoni, M., Brofferio, C., Bucci, C., Cai, X.Z., Camacho, A., Caminata, A., Cao, X.G., Capelli, S., Cappelli, L., Carbone, L., Cardani, L., Casali, N., Cassina, L., Chiesa, D., Chott, N., Clemenza, M., Copello, S., Cosmelli, C., Cremonesi, O., Creswick, R.J., Cushman, J.S., Dafinei, I., Dally, A., Datskov, V., Dell'Oro, S., Deninno, M.M., Di Domizio, S., Di Vacri, M.L., Drobizhev, A., Ejzak, L., Fang, D.Q., Farach, H.A., Faverzani, M., Fernandes, G., Ferri, E., Ferroni, F., Fiorini, E., Franceschi, M.A., Freedman, S.J., Fujikawa, B.K., Giachero, A., Gironi, L., Giuliani, A., Gorla, P., Gotti, C., Gutierrez, T.D., Haller, E.E., Han, K., Hansen, E., Heeger, K.M., Hennings-Yeomans, R., Hickerson, K.P., Huang, H.Z., Kadel, R., Keppel, G., Kolomensky, Yu.G., Li, Y.L., Ligi, C., Lim, K.E., Liu, X., Ma, Y.G., Maiano, C., Maino, M., Martinez, M., Maruyama, R.H., Mei, Y., Moggi, N., Morganti, S., Napolitano, T., Nisi, S., Nones, C., Norman, E.B., Nucciotti, A., O'Donnell, T., Orio, F., Orlandi, D., Ouellet, J.L., Pagliarone, C.E., Pallavicini, M., Palmieri, V., Pattavina, L., Pavan, M., Pessina, G., Pettinacci, V., Piperno, G., Pira, C., Pirro, S., Pozzi, S., Previtali, E., Rosenfeld, C., Rusconi, C., Sala, E., Sangiorgio, S., Santone, D., Scielzo, N.D., Sisti, M., Smith, A.R., Taffarello, L., Tenconi, M., Terranova, F., Tian, W.D., Tomei, C., Trentalange, S., Ventura, G., Vignati, M., Wang, B.S., Wang, H.W., Wielgus, L., Wilson, J., Winslow, L.A., Wise, T., Woodcraft, A., Zanotti, L., Zarra, C., Zhang, G.Q., Zhu, B.X., and Zucchelli, S.

Abstract

The CUORE (Cryogenic Underground Observatory for Rare Events) experiment is an array of 741 kg of TeO2bolometers to search for neutrinoless double beta decay (ββ0ν) of 130Te. The detector is being constructed at the Laboratori Nazionali del Gran Sasso (Italy) where it will start operation in 2015. To test and demonstrate the possibility of realising such a large scale bolometric detector, a prototype (CUORE-0) has been realised. The CUORE-0 detector is a single tower of 52 CUORE-like bolometers. CUORE-0 data taking started in Spring 2013. The status of CUORE and the first CUORE-0 data are here reported.

Published
2015
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