CUPID-0: A double-readout cryogenic detector for Double Beta Decay search
Idioma
en
Communication dans un congrès
Este ítem está publicado en
Nucl.Instrum.Meth.A, Nucl.Instrum.Meth.A, 2019-02-18, Vienna. 2020, vol. 958, p. 162441
Resumen en inglés
CUPID-0 is the first large mass neutrino-less double beta decay ( 0νββ ) experiment based on cryogenic calorimeters with dual read-out of light and heat for background rejection. The detector assembly, consisting of 26 ...Leer más >
CUPID-0 is the first large mass neutrino-less double beta decay ( 0νββ ) experiment based on cryogenic calorimeters with dual read-out of light and heat for background rejection. The detector assembly, consisting of 26 ZnSe crystals, 2 natural and 24 enriched at 95% in 82 Se, all coupled with bolometric light detectors, has been constructed respecting very strict protocols and procedures, from the material selection during crystal growth to the new and innovative detector framework, in the attempt to achieve the best performance of the array. The successful construction of the detector lead to promising preliminary results, here presented. The array is in fact taking data underground at LNGS (Italy) since March 2017 and the particle identification, enabled by the light read-out, provides an unprecedented background level, for cryogenic calorimeters, of only 3.2 counts keV−1t−1yr−1 in the region of interest of the 0νββ search for 82 Se, namely around 3 MeV.< Leer menos
Palabras clave en inglés
Neutrino-less double beta decay
Cryogenic detectors
Scintillation
Alpha background
CUPID
activity report
calorimeter: cryogenics
double-beta decay: (0neutrino)
background
scintillation counter: crystal
zinc
selenium
performance
Gran Sasso
bolometer
Orígen
Importado de HalCentros de investigación