# Studies of scintillation properties of CaMoO4 at millikelvin temperatures

Source: [Studies of scintillation properties of CaMoO4 at millikelvin temperatures](<https://www.sota2.com/research/paper/68fa32191e209131ce8852bb>)

Collection index: [llms.txt](<https://www.sota2.com/research/llms.txt>)

Data updated: 2025-10-24T19:17:37.663Z

Authors: X. Zhang, J. Lin, V. B. Mikhailik, H. Kraus

Published: 2015-06-13T18:31:42.000Z

## Abstract

Application of CaMoO4 as a scintillation target in cryogenic rare event searches relies on the understanding of scintillation properties of the material at the temperatures at which these detectors operate. We devised and implemented a detection module with a low-temperature photomultiplier from Hamamatsu (model R8520-06) powered by a Cockcroft-Walton generator. The detector module containing the CaMoO4 crystal was placed in a 3He/4He dilution refrigerator and used to measure scintillation characteristics of CaMoO4 in the millikelvin temperature range. At the lowest temperature achieved, the energy resolution of CaMoO4 for 122 keV from a 57Co source is found to be 30% (FWHM), and the fast and slow decay constants are 40.6+-0.8 us and 3410+-50 us, respectively. The temperature variation of the CaMoO4 decay kinetics is discussed in terms of a three-level model of the emission center

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## Original sources and implementation

[Original paper](<https://arxiv.org/abs/1506.04305>)

[PDF](<https://arxiv.org/pdf/1506.04305.pdf>)