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

被引:105
作者
Meunier, P [1 ]
Bravin, M [1 ]
Bruckmayer, M [1 ]
Giordano, S [1 ]
Loidl, M [1 ]
Meier, O [1 ]
Pröbst, F [1 ]
Seidel, W [1 ]
Sisti, M [1 ]
Stodolsky, L [1 ]
Uchaikin, S [1 ]
Zerle, L [1 ]
机构
[1] Max Planck Inst Phys & Astrophys, D-80805 Munich, Germany
关键词
D O I
10.1063/1.124685
中图分类号
O59 [应用物理学];
学科分类号
摘要
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). (C) 1999 American Institute of Physics. [S0003-6951(99)00634-8].
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页码:1335 / 1337
页数:3
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