Discrimination between nuclear recoils and electron recoils by simultaneous detection of phonons and scintillation light
- 30 August 1999
- journal article
- research article
- Published by AIP Publishing in Applied Physics Letters
- Vol. 75 (9), 1335-1337
- https://doi.org/10.1063/1.124685
Abstract
We have developed a detector, consisting of a cryogeniccalorimeter with a scintillating crystal as an absorber, and a second calorimeter for the detection of scintillation light, both operated at 12 mK. Using a CaWO 4 crystal with a mass of 6 g as the scintillating absorber, we have achieved a discrimination between nuclear recoils and electron recoils with a suppression factor of 99.7% at energies above 15 keV. This method will be applied for background rejection in the CRESST dark matter search (Cryogenic Rare Event Search with SuperconductingThermometers).Keywords
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