We present the performances of a 330 g zinc molybdate (ZnMoO 4) 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 ZnMoO 4 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. © 2012 The Author(s).
Beeman, J., Bellini, F., Brofferio, C., Cardani, L., Casali, N., Cremonesi, O., et al. (2012). Performances of a large mass ZnMoO 4 scintillating bolometer for a next generation 0 νDBD experiment. THE EUROPEAN PHYSICAL JOURNAL. C, PARTICLES AND FIELDS, 72(9), 1-6 [10.1140/epjc/s10052-012-2142-7].
Performances of a large mass ZnMoO 4 scintillating bolometer for a next generation 0 νDBD experiment
BROFFERIO, CHIARA;Cremonesi, O;GIRONI, LUCA;PAVAN, MAURA;PATTAVINA, LUCA MARIA;Pessina, G;Previtali, E;
2012
Abstract
We present the performances of a 330 g zinc molybdate (ZnMoO 4) 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 ZnMoO 4 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. © 2012 The Author(s).
I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
