Validation of techniques to mitigate copper surface contamination in CUORE

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 10E-07 - 10E-08 Bq/cm2 are achieved for 238U and 232Th. 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.

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Source ISSN: 0927-6505
Author Alessandria, F., Ardito, R., Artusa, D.R., 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., 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., Rimondi, F., Rosenfeld, C., Rusconi, C., Sangiorgio, S., Scielzo, N.D., Sisti, M., Smith, A.R., Stivanello, F., Taffarello, L., Tenconi, M., Tian, W.D., Tomei, C., Trentalange, S., Ventura, G., Vignati, M., Wang, B.S., Wang, H.W., Wise, T., Woodcraft, A., Zanotti, L., Zarra, C., Zhu, B.X., Zucchelli, S., Reil, R., Sparks, L.
Maintainer CCSD
Last Updated May 7, 2026, 18:22 (UTC)
Created May 7, 2026, 18:22 (UTC)
Identifier in2p3-00920348
Language en
contributor Centre de Spectrométrie Nucléaire et de Spectrométrie de Masse (CSNSM) ; Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)
creator Alessandria, F.
date 2012-05-07T00:00:00
harvest_object_id 997eec9b-4a86-438b-89b6-84427d519855
harvest_source_id 3374d638-d20b-4672-ba96-a23232d55657
harvest_source_title test moissonnage SELUNE
metadata_modified 2026-04-08T00:00:00
relation info:eu-repo/semantics/altIdentifier/arxiv/1210.1107
set_spec type:ART