Validation of techniques to mitigate copper surface contamination in CUORE

F. Alessandria, R. Ardito, D. R. Artusa, F. T. Avignone, O. Azzolini, M. Balata, T. I. Banks, G. Bari, J. Beeman, F. Bellini, A. Bersani, M. Biassoni, T. Bloxham, C. Brofferio, C. Bucci, X. Z. Cai, L. Canonica, S. Capelli, L. Carbone, L. CardaniM. Carrettoni, N. Casali, N. Chott, M. Clemenza, C. Cosmelli, O. Cremonesi, R. J. Creswick, I. Dafinei, A. Dally, V. Datskov, A. De Biasi, M. M. Deninno, S. Di Domizio, M. L. Di Vacri, L. Ejzak, R. Faccini, D. Q. Fang, H. A. Farach, E. Ferri, F. Ferroni, E. Fiorini, M. A. Franceschi, S. J. Freedman, B. K. Fujikawa, A. Giachero, L. Gironi, A. Giuliani, J. Goett, A. Goodsell, P. Gorla, C. Gotti, E. Guardincerri, T. D. Gutierrez, E. E. Haller, K. Han, K. M. Heeger, H. Z. Huang, R. Kadel, K. Kazkaz, G. Keppel, L. Kogler, Yu G. Kolomensky, D. Lenz, Y. L. Li, C. Ligi, X. Liu, Y. G. Ma, C. Maiano, M. Maino, M. Martinez, R. H. Maruyama, Y. Mei, N. Moggi, S. Morganti, T. Napolitano, S. Newman, S. Nisi, C. Nones, E. B. Norman, A. Nucciotti, F. Orio, D. Orlandi, J. L. Ouellet, M. Pallavicini, V. Palmieri, L. Pattavina, M. Pavan, M. Pedretti, G. Pessina, S. Pirro, E. Previtali, V. Rampazzo, R. Reil, F. Rimondi, C. Rosenfeld, C. Rusconi, S. Sangiorgio, N. D. Scielzo, M. Sisti, A. R. Smith, L. Sparks, F. Stivanello, L. Taffarello, M. Tenconi, W. D. Tian, C. Tomei, S. Trentalange, G. Ventura, M. Vignati, B. S. Wang, H. W. Wang, C. A. Whitten, T. Wise, A. Woodcraft, L. Zanotti, C. Zarra, B. X. Zhu, S. Zucchelli

Research output: Contribution to journalArticle

56 Scopus citations

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 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.

Original languageEnglish (US)
Pages (from-to)13-22
Number of pages10
JournalAstroparticle Physics
Volume45
DOIs
StatePublished - 2013

Keywords

  • Bolometer
  • Neutrinoless Double Beta Decay
  • Radioactive background
  • Surface contamination

ASJC Scopus subject areas

  • Astronomy and Astrophysics

Fingerprint Dive into the research topics of 'Validation of techniques to mitigate copper surface contamination in CUORE'. Together they form a unique fingerprint.

  • Cite this

    Alessandria, F., Ardito, R., Artusa, D. R., Avignone, F. T., 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., ... Zucchelli, S. (2013). Validation of techniques to mitigate copper surface contamination in CUORE. Astroparticle Physics, 45, 13-22. https://doi.org/10.1016/j.astropartphys.2013.02.005