Modeling of SQS propagation induced by alpha ray in gas counters

Akihiro Nohtomi, K. Narita, T. Sakae, Yusuke Uozumi, M. Matoba, N. Koori

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Referring to optical images of self-quenching streamer (SQS), we have already proposed a possible mechanism of SQS induced by α-ray. To check the validity of the mechanism, we have been designing a model for the computer simulation of SQS propagation. In the present modelling, in order to calculate the discharge growing, a set of continuity equations for electrons and ions is numerically solved in a two-dimensional space. Electron supply from the alpha-ray ionization track is assumed to be dominant process for the streamer development instead of the conventional electron-supply process which is based on the photo ionization in the gas medium. The streamer propagation is simulated under the concept of 'two-region model'. A first comparison between computed and experimental results shows a good agreement.

Original languageEnglish
Title of host publicationIEEE Nuclear Science Symposium & Medical Imaging Conference
Editors Anon
PublisherIEEE
Pages196-200
Number of pages5
Volume1
Publication statusPublished - 1995
EventProceedings of the 1994 Nuclear Science Symposium and Medical Imaging Conference. Part 1 (of 4) - Norfolk, VA, USA
Duration: Oct 30 1994Nov 5 1994

Other

OtherProceedings of the 1994 Nuclear Science Symposium and Medical Imaging Conference. Part 1 (of 4)
CityNorfolk, VA, USA
Period10/30/9411/5/94

All Science Journal Classification (ASJC) codes

  • Computer Vision and Pattern Recognition
  • Industrial and Manufacturing Engineering

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  • Cite this

    Nohtomi, A., Narita, K., Sakae, T., Uozumi, Y., Matoba, M., & Koori, N. (1995). Modeling of SQS propagation induced by alpha ray in gas counters. In Anon (Ed.), IEEE Nuclear Science Symposium & Medical Imaging Conference (Vol. 1, pp. 196-200). IEEE.