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Validation of techniques to mitigate copper surface contamination in CUORE
Alessandria, F.; Ardito, R.; Artusa, D. R.; Avignone, F. T., III; Azzolini, O.; Balata, M.; Banks, T. I.; Bari, G.; Beeman, J.; Bellini, F.; Bersani, A.; Biassoni, M.; Bloxham, T.; Brofferio, C.; Bucci, C.; Cai, X. Z.; Canonica, L.; Capelli, S.; Carbone, L.; Cardani, L.; Carrettoni, M.; Casali, N.; Chott, N.; Clemenza, M.; Cosmelli, C.; Cremonesi, O.; Creswick, R. J.; Dafinei, I.; Dally, A.; Datskov, V.; De Biasi, A.; Deninno, M. M.; Di Domizio, S.; di Vacri, M. L.; Ejzak, L.; Faccini, R.; Fang, D. Q.; Farach, H. A.; Ferri, E.; Ferroni, F.; Fiorini, E.; Franceschi, M. A.; Freedman, S. J.; Fujikawa, B. K.; Giachero, A.; Gironi, L.; Giuliani, A.; Goett, J.; Goodsell, A.; Gorla, P.; Gotti, C.; Guardincerri, E.; Gutierrez, T. D.; Haller, E. E.; Han, K.; Heeger, K. M.; Huang, H. Z.; Kadel, R.; Kazkaz, K.; Keppel, G.; Kogler, L.; Kolomensky, Yu. G.; Lenz, D.; Li, Y. L.; Ligi, C.; Liu, X.; Ma, Y. G.; Maiano, C.; Maino, M.; Martinez, M.; Maruyama, R. H.; Mei, Y.; Moggi, N.; Morganti, S.; Napolitano, T.; Newman, S.; Nisi, S.; Nones, C.; Norman, E. B.; Nucciotti, A.; Orio, F.; Orlandi, D.; Ouellet, J. L.; 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. D.; Sisti, M.; Smith, A. R.; Sparks, L.; Stivanello, F.; Taffarello, L.; Tenconi, M.; Tian, W. D.; Tomei, C.; Trentalange, S.; Ventura, G.; Vignati, M.; Wang, B. S.; Wang, H. W.; Whitten, C. A., Jr.; Wise, T.; Woodcraft, A.; Zanotti, L.; Zarra, C.; Zhu, B. X.; Zucchelli, S.
AbstractIn 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/cm(2) 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. (C) 2013 Elsevier B.V. All rights reserved.
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Funding Project应物所项目组
WOS IDWOS:000324010600002
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Alessandria, F.,Ardito, R.,Artusa, D. R.,et al. Validation of techniques to mitigate copper surface contamination in CUORE[J]. ASTROPARTICLE PHYSICS,2013,45:CONCATENATE(Sheet1!I388,-Sheet1!J388).
APA Alessandria, F..,Ardito, R..,Artusa, D. R..,Avignone, F. T., III.,Azzolini, O..,...&Zucchelli, S..(2013).Validation of techniques to mitigate copper surface contamination in CUORE.ASTROPARTICLE PHYSICS,45,CONCATENATE(Sheet1!I388,-Sheet1!J388).
MLA Alessandria, F.,et al."Validation of techniques to mitigate copper surface contamination in CUORE".ASTROPARTICLE PHYSICS 45(2013):CONCATENATE(Sheet1!I388,-Sheet1!J388).
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