11-15 February 2013
Vienna University of Technology
Europe/Vienna timezone

A two-phase Cryogenic Avalanche Detector in Ar with THGEM/GAPD-matrix optical readout

Not scheduled
50m
Vienna University of Technology

Vienna University of Technology

Gußhausstraße 25-29, 1040 Wien (Vienna), Austria
Board: 18
Poster Gaseous Detectors

Speaker

Ekaterina Shemyakina (Novosibirsk State University and Budker Institute of Nuclear Physics)

Description

Two-phase Cryogenic Avalanche Detectors (CRADs) with THGEM multipliers have become an emerging technique for rare-event experiments. In this work we describe the performance of a two-phase CRAD in Ar with double-THGEM charge multiplier combined with a matrix of Geiger-mode APDs (GAPDs), optically recording THGEM avalanche signals in the Near Infrared (NIR) spectral range. The charge and light yields and the spatial resolution of such a combined THGEM/GAPD-matrix multiplier have been measured in the two-phase Ar CRAD. The applicability of such a technique to dark matter search and coherent neutrino-nucleus scattering experiments, in terms of providing ultimate (single-electron) sensitivity at higher (sub-cm) spatial resolution, is discussed.
quote your primary experiment Cryogenic Avalanche Detectors

Primary author

Prof. Alexei Buzulutskov (Novosibirsk State University and Budker Institute of Nuclear Physics)

Co-authors

Prof. Alexander Bondar (Novosibirsk State University and Budker Institute of Nuclear Physics) Prof. Alexander Dolgov (Novosibirsk State University) Dr Andrey Grebenuk (Budker Institute of Nuclear Physics) Dr Andrey Sokolov (Novosibirsk State University and Budker Institute of Nuclear Physics) Ekaterina Shemyakina (Novosibirsk State University and Budker Institute of Nuclear Physics) Dr Lev Shekhtman (Novosibirsk State University and Budker Institute of Nuclear Physics)

Presentation Materials