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

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

doi:10.1109/23.603735

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

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

Division of medical Quantum Science

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

Abstract

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 language	English
Pages (from-to)	691-695
Number of pages	5
Journal	IEEE Transactions on Nuclear Science
Volume	44
Issue number	3 PART 1
DOIs	https://doi.org/10.1109/23.603735
Publication status	Published - 1997

All Science Journal Classification (ASJC) codes

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

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T1 - Transition condition to the SQS mode of gas counters for heavy charged particles

AU - Nohtomi, A.

AU - Sakae, T.

AU - Matoba, M.

AU - Koori, N.

PY - 1997

Y1 - 1997

N2 - 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.

AB - 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.

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JO - IEEE Transactions on Nuclear Science

JF - IEEE Transactions on Nuclear Science

IS - 3 PART 1

ER -

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

Abstract

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