Development of cryogenic phonon detectors based on CaMoO4 and ZnWO4 scintillating crystals for direct dark matter search experiments

TL;DR

This paper presents the development of novel cryogenic phonon detectors using CaMoO4 and ZnWO4 scintillating crystals for dark matter detection, including a new production technique for ZnWO4 detectors and analysis of treatment effects on light output.

Contribution

It introduces the first phonon detectors based on CaMoO4 and ZnWO4 crystals for the CRESST-II experiment and a novel method for fabricating ZnWO4 detectors with a separate thermometer carrier.

Findings

Successful development of CaMoO4 and ZnWO4 phonon detectors

New fabrication technique for ZnWO4 detectors demonstrated

Analysis of treatment effects on scintillation light output

Abstract

This work reports on the development of the first phonon detectors based on CaMoO4 and ZnWO4 scintillating crystals for the CRESST-II experiment. In particular, a novel technique for the production of the ZnWO4 phonon detector with a separate thermometer carrier was investigated. The influence of the thermal and mechanical treatment on the scintillation light output of CaMoO4 and ZnWO4 crystals at room temperature is discussed.