2015年3月
EFFECT OF AIR ON ENERGY AND RISE-TIME SPECTRA MEASURED BY PROPORTIONAL GAS COUNTER
FUSION SCIENCE AND TECHNOLOGY
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- 巻
- 67
- 号
- 2
- 開始ページ
- 408
- 終了ページ
- 411
- 記述言語
- 英語
- 掲載種別
- 研究論文(学術雑誌)
- DOI
- 10.13182/FST14-T40
- 出版者・発行元
- AMER NUCLEAR SOC
Air exerts a negative effect on radiation detection using a gas counter because oxygen contained in air has a high electron attachment coefficient and can trap electrons from electron-ion pairs created by ionization from incident radiation in counting gas. This reduces radiation counts. The present study examined the influence of air on energy and rise-time spectra measurements using a proportional gas counter. In addition, a decompression procedure method was proposed to reduce the influence of air and its effectiveness was investigated. For the decompression procedure, the counting gas inside the gas counter was decompressed below atmospheric pressure before radiation detection.
For the spectrum measurement, methane as well as various methane and air mixtures were used as the counting gas to determine the effect of air on energy and rise-time spectra. Results showed that the decompression procedure was effective for reducing or eliminating the influence of air on spectra measurement using a proportional gas counter.
For the spectrum measurement, methane as well as various methane and air mixtures were used as the counting gas to determine the effect of air on energy and rise-time spectra. Results showed that the decompression procedure was effective for reducing or eliminating the influence of air on spectra measurement using a proportional gas counter.
- リンク情報
- ID情報
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- DOI : 10.13182/FST14-T40
- ISSN : 1536-1055
- eISSN : 1943-7641
- Web of Science ID : WOS:000350776900042