First test of an enriched \(^{116}\)CdWO\(_4\) scintillating bolometer for neutrinoless double-beta-decay searches

For the first time, a cadmium tungstate crystal scintillator enriched in \(^{116}\)Cd has been succesfully tested as a scintillating bolometer. The measurement was performed above ground at a temperature of 18 mK. The crystal mass was 34.5 g and the enrichment level ~82 %. Despite a substantial pile...

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Published inarXiv.org
Main Authors Barabash, A S, Danevich, F A, Gimbal-Zofka, Y, Giuliani, A, Konovalov, S I, Mancuso, M, de Marcillac, P, Marnieros, S, Novati, V, Pessina, G, Poda, D V, Polischuk, O G, Shlegel, V N, Tretyak, V I, Umatov, V I, Zolotarova, A S
Format Paper
LanguageEnglish
Published Ithaca Cornell University Library, arXiv.org 24.06.2016
Subjects
Beta decay
Bolometers
Cadmium
Energy resolution
Enrichment
Scintillation counters
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Summary:For the first time, a cadmium tungstate crystal scintillator enriched in \(^{116}\)Cd has been succesfully tested as a scintillating bolometer. The measurement was performed above ground at a temperature of 18 mK. The crystal mass was 34.5 g and the enrichment level ~82 %. Despite a substantial pile-up effect due to above-ground operation, the detector demonstrated a high energy resolution (2-7 keV FWHM in 0.2-2.6 MeV \(\gamma\) energy range), a powerful particle identification capability and a high level of internal radiopurity. These results prove that cadmium tungstate is an extremely promising detector material for a next-generation neutrinoless double-beta decay bolometric experiment, like that proposed in the CUPID project (CUORE Upgrade with Particle IDentification).
ISSN:2331-8422
DOI:10.48550/arxiv.1606.07806