Two-phase Cryogenic Avalanche Detectors with THGEM and hybrid THGEM/GEM multipliers operated in Ar and Ar+N2 - IN2P3 - Institut national de physique nucléaire et de physique des particules Access content directly
Journal Articles Journal of Instrumentation Year : 2013

Two-phase Cryogenic Avalanche Detectors with THGEM and hybrid THGEM/GEM multipliers operated in Ar and Ar+N2

A. Bondar
  • Function : Author
A. Buzulutskov
  • Function : Author
A. Dolgov
  • Function : Author
A. Grebenuk
  • Function : Author
E. Shemyakina
  • Function : Author
A. Sokolov
  • Function : Author
D. Akimov
  • Function : Author
A. Breskin
  • Function : Author
Dominique Thers

Abstract

Two-phase Cryogenic Avalanche Detectors (CRADs) with GEM and THGEM multipliers have become an emerging potential technique for charge recording in rare-event experiments. In this work we present the performance of two-phase CRADs operated in Ar and Ar+N2. Detectors with sensitive area of 10 × 10 cm2, reaching a litre-scale active volume, yielded gains of the order of 1000 with a double-THGEM multiplier. Higher gains, of about 5000, have been attained in two-phase Ar CRADs with a hybrid triple-stage multiplier, comprising of a double-THGEM followed by a GEM. The performance of two-phase CRADs in Ar doped with N2 (0.1-0.6%) yielded faster signals and similar gains compared to the operation in two-phase Ar. The applicability to rare-event experiments is discussed.

Dates and versions

in2p3-00870462 , version 1 (07-10-2013)

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A. Bondar, A. Buzulutskov, A. Dolgov, A. Grebenuk, E. Shemyakina, et al.. Two-phase Cryogenic Avalanche Detectors with THGEM and hybrid THGEM/GEM multipliers operated in Ar and Ar+N2. Journal of Instrumentation, 2013, 8, pp.P02008. ⟨10.1088/1748-0221/8/02/P02008⟩. ⟨in2p3-00870462⟩
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