Transition condition to the SQS mode of gas counters for heavy charged particles

A. Nohtomi, T. Sakae, M. Matoba, N. Koori

Research output: Contribution to journalArticlepeer-review


A transition condition of a-ray induced SQSs has been investigated with various gas mixtures. For this purpose, obtainable experimental data have been analyzed through a consideration of two newly-introduced quantities : "effective electric-field strength (E eff)" near primary electron avalanches and "average electron density (ρ av)" of ionization tracks by α-rays. A result of the analysis indicates that such SQS transitions may occur when the value of E eff·ρ av reaches a certain magnitude. Following this, transition characteristics to the SQS mode have been studied for protons around 10 MeV.

Original languageEnglish
Pages (from-to)691-695
Number of pages5
JournalIEEE Transactions on Nuclear Science
Issue number3 PART 1
Publication statusPublished - 1997

All Science Journal Classification (ASJC) codes

  • Nuclear and High Energy Physics
  • Nuclear Energy and Engineering
  • Electrical and Electronic Engineering


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