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Further studies of two-phase krypton detectors based on Gas Electron Multipliers

Authors :
R. Snopkov
A. Bondar
Yuri Tikhonov
A. Buzulutskov
D. Pavlyuchenko
Source :
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 548:439-445
Publication Year :
2005
Publisher :
Elsevier BV, 2005.

Abstract

We further study the performance of cryogenic two-phase avalanche detectors, based on Gas Electron Multipliers (GEMs) and operated in an electron-avalanching mode in Kr. Stable operation of the triple-GEM in saturated vapor, above the liquid, has been demonstrated for several hours. The signals induced by 0.5 MeV γ-rays were recorded from the two-phase detector in coincidences with a BGO counter, aiming at potential applications in Positron Emission Tomography. Charging-up effects were observed at high anode current densities in GEM-based two-phase detectors.

Details

ISSN :
01689002
Volume :
548
Database :
OpenAIRE
Journal :
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
Accession number :
edsair.doi...........5775ab3b69430ce0666498a9b236e0fb