Space charge effect in SQS transition in a gas counter

Hideaki Ohgaki; Hitoshi Kametani; Yasuyuki Fujita; Yuusuke Uozumi; Hidenobu Ijiri; Masaru Matoba; Takeji Sakae; Norihiko Koori

doi:10.1016/0168-9002(90)90721-H

Space charge effect in SQS transition in a gas counter

Hideaki Ohgaki, Hitoshi Kametani, Yasuyuki Fujita, Yuusuke Uozumi, Hidenobu Ijiri, Masaru Matoba, Takeji Sakae, Norihiko Koori

Applied Nuclear Physics

Research output: Contribution to journal › Article › peer-review

5 Citations (Scopus)

Abstract

Systematic investigation of the gas multiplication characteristics in the transition region from the proportional to SQS mode in a cylindrical proportional counter has been performed. The property of saturation of the gas multiplication factor can be reproduced using the effective electric field which is corrected for the space charge related to the positive ion density in the avalanche. Photon-mediated gas multiplication can explain the large jump phenomenon of the SQS transition. It is shown that the effective electric field in the avalanche becomes almost zero near the anode surface (Meek's streamer condition) at the 50% transition voltage and the region of its maximum moves slightly away from the anode surface.

Original language	English
Pages (from-to)	411-416
Number of pages	6
Journal	Nuclear Inst. and Methods in Physics Research, A
Volume	295
Issue number	3
DOIs	https://doi.org/10.1016/0168-9002(90)90721-H
Publication status	Published - Nov 1 1990

All Science Journal Classification (ASJC) codes

Nuclear and High Energy Physics
Instrumentation

Access to Document

10.1016/0168-9002(90)90721-H

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title = "Space charge effect in SQS transition in a gas counter",

abstract = "Systematic investigation of the gas multiplication characteristics in the transition region from the proportional to SQS mode in a cylindrical proportional counter has been performed. The property of saturation of the gas multiplication factor can be reproduced using the effective electric field which is corrected for the space charge related to the positive ion density in the avalanche. Photon-mediated gas multiplication can explain the large jump phenomenon of the SQS transition. It is shown that the effective electric field in the avalanche becomes almost zero near the anode surface (Meek's streamer condition) at the 50% transition voltage and the region of its maximum moves slightly away from the anode surface.",

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T1 - Space charge effect in SQS transition in a gas counter

AU - Ohgaki, Hideaki

AU - Kametani, Hitoshi

AU - Fujita, Yasuyuki

AU - Uozumi, Yuusuke

AU - Ijiri, Hidenobu

AU - Matoba, Masaru

AU - Sakae, Takeji

AU - Koori, Norihiko

PY - 1990/11/1

Y1 - 1990/11/1

N2 - Systematic investigation of the gas multiplication characteristics in the transition region from the proportional to SQS mode in a cylindrical proportional counter has been performed. The property of saturation of the gas multiplication factor can be reproduced using the effective electric field which is corrected for the space charge related to the positive ion density in the avalanche. Photon-mediated gas multiplication can explain the large jump phenomenon of the SQS transition. It is shown that the effective electric field in the avalanche becomes almost zero near the anode surface (Meek's streamer condition) at the 50% transition voltage and the region of its maximum moves slightly away from the anode surface.

AB - Systematic investigation of the gas multiplication characteristics in the transition region from the proportional to SQS mode in a cylindrical proportional counter has been performed. The property of saturation of the gas multiplication factor can be reproduced using the effective electric field which is corrected for the space charge related to the positive ion density in the avalanche. Photon-mediated gas multiplication can explain the large jump phenomenon of the SQS transition. It is shown that the effective electric field in the avalanche becomes almost zero near the anode surface (Meek's streamer condition) at the 50% transition voltage and the region of its maximum moves slightly away from the anode surface.

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