Study of $\mathrm{CdMo}{\mathrm{O}}_4$ crystal for a neutrinoless double beta decay experiment with ${}^{116}\mathrm{Cd}$ and ${}^{100}\mathrm{Mo}$ nuclides

Abstract

The scintillation properties of a $\mathrm{CdMo}{\mathrm{O}}_4$ crystal have been investigated experimentally. The fluorescence yields and decay times measured from 22 K to 300 K demonstrate that $\mathrm{CdMo}{\mathrm{O}}_4$ crystal is a good candidate for an absorber for a bolometer readout, for both heat and scintillation signals. The results from Monte Carlo studies taking the backgrounds from $2\nu 2\beta$ of ${}_{42}^{100}\mathrm{Mo}$ (${}_{48}^{116}\mathrm{Cd}$) and internal trace nuclides ${}^{214}\mathrm{Bi}$ and ${}^{208}\mathrm{Tl}$ into account show that the expected sensitivity of $\mathrm{CdMo}{\mathrm{O}}_4$ bolometer for neutrinoless double beta decay experiment with an exposure of 100 $\mathrm{kg}\cdot \mathrm{years}$ is one order of magnitude higher than those of the current sets of the $\lim {\mathrm{T}}_{1/2}^{0\nu \beta \beta }$ of ${}_{42}^{100}\mathrm{Mo}$ and ${}_{48}^{116}\mathrm{Cd}$.

7 pages, 8 figures

References in corpus (3)

• Observation of electron-antineutrino disappearance at Daya Bay
• Performance of scintillation materials at cryogenic temperatures
• Development of CaMoO4 crystal scintillators for double beta decay experiment with 100-Mo

Cited by in corpus (2)

• Low background techniques in bolometers for double-beta decay search
• Radiopure tungstate and molybdate crystal scintillators for double beta decay experiments