A CsI low temperature detector for dark matter search

Abstract

Cryogenic detectors have a long history of success in the field of rare event searches. In particular scintillating calorimeters are very suitable detectors for this task since they provide particle discrimination: the simultaneous detection of the thermal and the light signal produced by a particle interaction in scintillating crystals allows to identify the nature of particle, as the light yield depends thereon. We investigate the performance of two large CsI (undoped) crystals ($\sim$122 g each) operated as scintillating calorimeters at milli-Kelvin temperatures in terms of calorimetric properties and background rejection capabilities. Furthermore, we discuss the feasibility of this detection approach towards a background-free future dark matter experiment based on alkali halides crystals, with active particle discrimination via the two-channel detection.

9 pages, 6 figures

References in corpus (11)

• Results on light dark matter particles with a low-threshold CRESST-II detector
• New Limits on Interactions between Weakly Interacting Massive Particles and Nucleons Obtained with CsI(Tl) Crystal Detectors
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• Characterization of ZnSe scintillating bolometers for Double Beta Decay
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Cited by in corpus (13)

• Direct Detection of sub-GeV Dark Matter with Scintillating Targets
• Coherent Elastic Neutrino-Nucleus Scattering at the European Spallation Source
• Results from the first cryogenic NaI detector for the COSINUS project
• Radioactive contamination of scintillators
• Cryogenic light detectors with enhanced performance for rare events physics
• Potentialities of the future technical improvements in the search of rare nuclear decays by bolometers
• Particle detection at cryogenic temperatures with undoped CsI
• Na-based crystal scintillators for next-generation rare event searches
• An innovative technique for the investigation of the 4-fold forbidden beta-decay of ${}^{50}$V
• Array of Cryogenic Calorimeters to Evaluate the Spectral Shape of forbidden $\beta$-decays: the ACCESS project
• Results of the first NaI scintillating calorimeter prototypes by COSINUS
• CUORE Opens the Door to Tonne-scale Cryogenics Experiments
• The COSINUS project - a NaI-based cryogenic calorimeter for direct dark matter detection