6. High-Energy and Accelerator Physics, Physics of High-Temperature Plasma

STUDY OF TWO-PHASE CRYOGENIC AVALANCHE DETECTOR CHARACTERISTICS IN ARGON WITH OPTICAL READOUT BASED ON MATRIX OF GEIGER-MODE AVALANCHE PHOTODIODES

Aleksandr E. Bondar
1. Budker Institute of Nuclear Physics SB RAS Novosibirsk, Russian Federation
2. Novosibirsk State University Novosibirsk, Russian Federation
Alexey F. Buzulutskov
1. Budker Institute of Nuclear Physics SB RAS Novosibirsk, Russian Federation
2. Novosibirsk State University Novosibirsk, Russian Federation
A.F.Buzulutskov@inp.nsk.su
Aleksandr D. Dolgov
1. Budker Institute of Nuclear Physics SB RAS Novosibirsk, Russian Federation
2. Novosibirsk State University Novosibirsk, Russian Federation
The material was received by the Editorial Board: 19.03.2013
In this article the operation of a two-phase cryogenic avalanche detector (CRAD) in Ar with optical readout using combined multiplier based on thick gas electronic multipliers (THGEMs) and a matrix of Geiger-mode avalanche photodiodes (GAPD) has been studied. The successful operation of such a detector when irradiated by x-ray photons with the average energy of 20 keV was demonstrated. The yield of such combined multiplier amounted at about 100 photoelectrons at THGEM avalanche gain of 160. In addition, the spatial resolution of the detector was measured; it turned out to be 1 mm.

Keywords:
two-phase argon, CRAD, THGEM, GAPD-matrix, optical readout, avalanche scintillations in near infrared region. 
УДК 539.1.074.23; 537.563

STUDY OF TWO-PHASE CRYOGENIC AVALANCHE DETECTOR CHARACTERISTICS IN ARGON WITH OPTICAL READOUT BASED ON MATRIX OF GEIGER-MODE AVALANCHE PHOTODIODES
References: Bondar A. E., Buzulutskov A. F., Dolgov A. D., Sokolov A. V., Shemyakina E. O. STUDY OF TWO-PHASE CRYOGENIC AVALANCHE DETECTOR CHARACTERISTICS IN ARGON WITH OPTICAL READOUT BASED ON MATRIX OF GEIGER-MODE AVALANCHE PHOTODIODES . Vestnik NSU. Series: Physics. 2013, vol. 8, no. 2. P. 36–43 (in Russ.). DOI: 10.54362/1818-7919-2013-8-2-36-43