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Journal Articles Journal of Low Temperature Physics Year : 2008

Cryogenic Ge detectors for dark matter search: Surface event rejection with ionization signals

Abstract

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.

Dates and versions

in2p3-00825400 , version 1 (23-05-2013)

Identifiers

Cite

X. Defay, A. Broniatowski, A. Juillard, S. Marnieros, M. Chapellier, et al.. Cryogenic Ge detectors for dark matter search: Surface event rejection with ionization signals. Journal of Low Temperature Physics, 2008, 151, pp.896-901. ⟨10.1007/s10909-008-9762-1⟩. ⟨in2p3-00825400⟩
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