Scintillating bolometers for Double Beta Decay search
Luca Gironi
TL;DR
This paper discusses the development and testing of scintillating bolometers using CdWO4 and CaMoO4 crystals for double beta decay detection, highlighting their background discrimination capabilities and pulse shape analysis.
Contribution
It introduces the first demonstration of alpha-beta discrimination in CaMoO4 bolometers through thermal pulse shape analysis.
Findings
CdWO4 and CaMoO4 bolometers show promising energy resolution.
CaMoO4 bolometers can distinguish alpha from beta-gamma events.
First report of pulse shape discrimination in CaMoO4 bolometers.
Abstract
In the field of Double Beta Decay (DBD) searches, the use of high resolution detectors in which background can be actively discriminated is very appealing. Scintillating bolometers containing a Double Beta Decay emitter can largely fulfill this very interesting possibility. In this paper we present the latest results obtained with CdWO4 and CaMoO4 crystals. Moreover we report, for the first time, a very interesting feature of CaMoO4 bolometers: the possibility to discriminate beta-gamma events from those induced by alpha particles thanks to different thermal pulse shape.
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