Optimization of cryogenic Ge detector equipped with NbSi thin film thermometers: Fiducial volume and energy resolution - IN2P3 - Institut national de physique nucléaire et de physique des particules Access content directly
Journal Articles Journal of Low Temperature Physics Year : 2008

Optimization of cryogenic Ge detector equipped with NbSi thin film thermometers: Fiducial volume and energy resolution

Abstract

Ionisation-heat detectors are very useful in direct detection dark matter experiments because they lead to an active rejection of the background. Their rejection performances are presently limited by near electrode surface events leading to incomplete charge collection. We propose an identification of near NbSi electrodes events based on pulse shape analysis of the phonon signal delivered by the thermometric layer. We discuss recent progress in the near surface event identification accuracy together with the remaining fiducial volume and the heat channel resolution.

Dates and versions

in2p3-00854645 , version 1 (27-08-2013)

Identifiers

Cite

Y. Dolgorouky, S. Marnieros, E. Olivieri, L. Berge, M. Chapellier, et al.. Optimization of cryogenic Ge detector equipped with NbSi thin film thermometers: Fiducial volume and energy resolution. Journal of Low Temperature Physics, 2008, 151, pp.877-883. ⟨10.1007/s10909-008-9763-0⟩. ⟨in2p3-00854645⟩
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