Discrimination between nuclear recoils and electron recoils by simultaneous detection of phonons and scintillation light

P. Meunier, M. Bravin, M. Bruckmayer, S. Giordano, M. Loidl, O. Meier, F. Pröbst, W. Seidel, M. Sisti, L. Stodolsky, S. Uchaikin, L. Zerle

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Abstract

We have developed a detector, consisting of a cryogenic calorimeter with a scintillating crystal as an absorber, and a second calorimeter for the detection of scintillation light, both operated at 12 mK. Using a CaWO4 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 Superconducting Thermometers).

Original languageEnglish
Pages (from-to)1335-1337
Number of pages3
JournalApplied Physics Letters
Volume75
Issue number9
Publication statusPublished - 30 Aug 1999
Externally publishedYes

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

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    Meunier, P., Bravin, M., Bruckmayer, M., Giordano, S., Loidl, M., Meier, O., Pröbst, F., Seidel, W., Sisti, M., Stodolsky, L., Uchaikin, S., & Zerle, L. (1999). Discrimination between nuclear recoils and electron recoils by simultaneous detection of phonons and scintillation light. Applied Physics Letters, 75(9), 1335-1337.