European Physical Journal C: Particles and Fields (Sep 2012)

Performances of a large mass ZnMoO4 scintillating bolometer for a next generation 0νDBD experiment

  • J. W. Beeman,
  • F. Bellini,
  • C. Brofferio,
  • L. Cardani,
  • N. Casali,
  • O. Cremonesi,
  • I. Dafinei,
  • S. Di Domizio,
  • F. Ferroni,
  • E. Gorello,
  • E. N. Galashov,
  • L. Gironi,
  • S. S. Nagorny,
  • F. Orio,
  • M. Pavan,
  • L. Pattavina,
  • G. Pessina,
  • G. Piperno,
  • S. Pirro,
  • E. Previtali,
  • C. Rusconi,
  • V. N. Shlegel,
  • C. Tomei,
  • M. Vignati

DOI
https://doi.org/10.1140/epjc/s10052-012-2142-7
Journal volume & issue
Vol. 72, no. 9
pp. 1 – 6

Abstract

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Abstract We present the performances of a 330 g zinc molybdate (ZnMoO4) crystal working as scintillating bolometer as a possible candidate for a next generation experiment to search for neutrinoless double beta decay of 100Mo. The energy resolution, evaluated at the 2615 keV γ-line of 208Tl, is 6.3 keV FWHM. The internal radioactive contaminations of the ZnMoO4 were evaluated as <6 μBq/kg (228Th) and 27±6 μBq/kg (226Ra). We also present the results of the α vs β/γ discrimination, obtained through the scintillation light as well as through the study of the shape of the thermal signal alone.

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