Cryogenic Ge Detectors for Dark Matter Search: Surface Event Rejection with Ionization Signals

被引：0
|
作者：
X. Defay
A. Broniatowski
A. Juillard
S. Marnieros
M. Chapellier
L. Dumoulin
S. Collin
L. Bergé
F. Lalu
X. F. Navick
机构：
[1] CNRS-IN2P3,Centre de Spectrométrie Nucléaire et de Spectrométrie de Masse
[2] CEA/DSM/DAPNIA,Centre d’Etudes Nucléaires de Saclay
来源：
Journal of Low Temperature Physics | 2008年 / 151卷
关键词：
Germanium cryogenic detectors; Dark matter; Surface event discrimination; 07.57.Kp; 07.85.Nc; 72.20.Jv; 95.35.+d;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
A new design of an ionization-heat germanium detector for dark matter search is presented, based on the use of interleaved electrodes for charge collection. This device allows active rejection of surface events by performing the appropriate cuts in the charge measurement data. Test experiments were performed with a prototype device, fitted with annular collection electrodes and with a neutron transmutation-doped Ge thermometer. Calibration runs with gamma and neutron sources demonstrate the remarkable possibilities offered by this type of detector in terms of surface event discrimination.
引用
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页码：896 / 901
页数：5
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