In this article we describe the background challenges for the CUORE experiment posed by surface contamination of inert detector materials such as copper, and present three techniques explored to mitigate these backgrounds. Using data from a dedicated test apparatus constructed to validate and compare these techniques we demonstrate that copper surface contamination levels better than 10 ^-7 - 10^-8 Bq/cm2 are achieved for U-238 and Th-232. If these levels are reproduced in the final CUORE apparatus the projected 90%C.L. upper limit on the number of background counts in the region of interest is 0.02–0.03 counts/keV/kg/y depending on the adopted mitigation technique

Alessandria, F., Ardito, R., Artusa, D., Avignone III, F., Azzolini, O., Balata, M., et al. (2013). Validation of techniques to mitigate copper surface contamination in CUORE. ASTROPARTICLE PHYSICS, 45, 13-22 [10.1016/j.astropartphys.2013.02.005].

Validation of techniques to mitigate copper surface contamination in CUORE

BIASSONI, MATTEO;BROFFERIO, CHIARA;CAPELLI, SILVIA;CLEMENZA, MASSIMILIANO;Cremonesi, O;FERRI, ELENA;GIACHERO, ANDREA;GIRONI, LUCA;GOTTI, CLAUDIO;MAINO, MATTEO;NUCCIOTTI, ANGELO ENRICO LODOVICO;PAVAN, MAURA;Previtali, E;SISTI, MONICA;ZANOTTI, LUIGI ERNESTO;
2013

Abstract

In this article we describe the background challenges for the CUORE experiment posed by surface contamination of inert detector materials such as copper, and present three techniques explored to mitigate these backgrounds. Using data from a dedicated test apparatus constructed to validate and compare these techniques we demonstrate that copper surface contamination levels better than 10 ^-7 - 10^-8 Bq/cm2 are achieved for U-238 and Th-232. If these levels are reproduced in the final CUORE apparatus the projected 90%C.L. upper limit on the number of background counts in the region of interest is 0.02–0.03 counts/keV/kg/y depending on the adopted mitigation technique
Articolo in rivista - Articolo scientifico
Bolometer, Neutrinoless Double Beta Decay, Surface contamination, Radioactive background
English
13
22
10
Alessandria, F., Ardito, R., Artusa, D., Avignone III, F., Azzolini, O., Balata, M., et al. (2013). Validation of techniques to mitigate copper surface contamination in CUORE. ASTROPARTICLE PHYSICS, 45, 13-22 [10.1016/j.astropartphys.2013.02.005].
Alessandria, F; Ardito, R; Artusa, D; Avignone III, F; Azzolini, O; Balata, M; Banks, T; Bari, G; Beeman, J; Bellini, F; Bersani, A; Biassoni, M; Bloxham, T; Brofferio, C; Bucci, C; Cai, X; Canonica, L; Capelli, S; Carbone, L; Cardani, L; Carrettoni, M; Casali, N; Chott, N; Clemenza, M; Cosmelli, C; Cremonesi, O; Creswick, R; Dafinei, I; Dally, A; Datskov, V; De Biasi, A; Deninno, M; Di Domizio, S; di Vacri, M; Ejzak, L; Faccini, R; Fang, D; Farach, H; Ferri, E; Ferroni, F; Fiorini, E; Franceschi, M; Freedman, S; Fujikawa, B; Giachero, A; Gironi, L; Giuliani, A; Goett, J; Goodsell, A; Gorla, P; Gotti, C; Guardincerri, E; Gutierrez, T; Haller, E; Han, K; Heeger, K; Huang, H; Kadel, R; Kazkaz, K; Keppel, G; Kogler, L; Kolomensky, Y; Lenz, D; Li, Y; Ligi, C; Liu, X; Ma, Y; Maiano, C; Maino, M; Martinez, M; Maruyama, R; Mei, Y; Moggi, N; Morganti, S; Napolitano, T; Newman, S; Nisi, S; Nones, C; Norman, E; Nucciotti, A; Orio, F; Orlandi, D; Ouellet, J; Pallavicini, M; Palmieri, V; Pattavina, L; Pavan, M; Pedretti, M; Pessina, G; Pirro, S; Previtali, E; Rampazzo, V; Reil, R; Rimondi, F; Rosenfeld, C; Rusconi, C; Sangiorgio, S; Scielzo, N; Sisti, M; Smith, A; Sparks, L; Stivanello, F; Taffarello, L; Tenconi, M; Tian, W; Tomei, C; Trentalange, S; Ventura, G; Vignati, M; Wang, B; Wang, H; Whitten Jr, C; Wise, T; Woodcraft, A; Zanotti, L; Zarra, C; Zhu, B; Zucchelli, S
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/10281/44715
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