Jun 13 – 15, 2012
LAL Orsay
Europe/Paris timezone

Study of Geiger-mode APDs performances at cryogenic temperatures

Jun 14, 2012, 3:30 PM
40m
Hall (LAL Orsay)

Hall

LAL Orsay

Poster Posters B

Speaker

Andrey Sokolov (Budker Institute of Nuclear Physics)

Description

We compare the performances of different types of Geiger-mode APDs (GAPDs or SiPMs), manufactured by CPTA company, at cryogenic temperature, namely at 87 K. Noise rate, gain characteristics and signal shapes were measured, both at room and cryogenic temperature. Four types of GAPDs were investigated, having an active area of 1x1, 2.1x2.1, 2.5x2.5, and 3x3 mm2. The best performance showed the GAPD with 2.1x2.1 mm2 active area, in terms of the maximum gain, minimum noise rate and effective active area. This study is done in the frame of the project, developed in our laboratory, on the Cryogenic Avalanche Detector (CRAD) with optical readout using combined THGEM/GAPD-matrix multiplier. Preliminary results on the data acquisition system of the 3x3 GAPD-matrix are also presented. This technique is aimed at applications in rare-event experiments, such as those of coherent neutrino-nucleus scattering and dark matter search.

Primary author

Andrey Sokolov (Budker Institute of Nuclear Physics)

Co-authors

Alex Bondar (Budker Institute of Nuclear Physics (RU)) Alexander Dolgov (Novosibirsk State University) Alexei Buzulutskov (Budker Institute of Nuclear Physics) Ekaterina Shemyakina (Novosibirsk State University)

Presentation materials