Gas Pressure Measurements in Pure and Mixed Gases at Around 1.0 Pa by Using ASDEX Type Fast Ionization Gauge
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- ICHIMURA Kazuya
- Graduate School of Engineering, Kobe University
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- YAMASHITA Sotaro
- Plasma Research Center, University of Tsukuba
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- NAKASHIMA Yousuke
- Plasma Research Center, University of Tsukuba
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- FUKUMOTO Masakatsu
- National Institutes for Quantum and Radiological Science and Technology
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- SHOJI Mamoru
- National Institute for Fusion Science
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- SAKAMOTO Mizuki
- Plasma Research Center, University of Tsukuba
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- EZUMI Naomichi
- Plasma Research Center, University of Tsukuba
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- ISLAM Md. Maidul
- Plasma Research Center, University of Tsukuba
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- ISLAM Md. Shahinul
- Plasma Research Center, University of Tsukuba
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- YOKODO Takayuki
- Plasma Research Center, University of Tsukuba
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- LEE Guanyi
- Plasma Research Center, University of Tsukuba
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- TERAKADO Akihiro
- Plasma Research Center, University of Tsukuba
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- NOJIRI Kunpei
- Plasma Research Center, University of Tsukuba
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- YOSHIMOTO Tsubasa
- Plasma Research Center, University of Tsukuba
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- TAKENO Hiromasa
- Graduate School of Engineering, Kobe University
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説明
<p>Sensitivity of the ASDEX type fast ionization gauge (AIG) to several species of gases; hydrogen, nitrogen, noble gases and their mixtures have been investigated. Mixtures of hydrogen-helium and hydrogen-argon with total gas pressure from 0.2 Pa to 1.5 Pa are investigated in order to simulate the environment of divertor regions. It has been found that the observed output current of AIG in mixed gases are larger than the theoretical output current evaluated from the partial pressures and the sensitivities for pure gases. The enhancement of the AIG sensitivity observed in mixed gas conditions suggests that the ionization is enhanced due to the mixing of different gases. A qualitative analysis on the ionization reactions and their cross-sections has indicated that ionization related with metastable atoms of helium or argon is causing the changes in AIG sensitivity.</p>
収録刊行物
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- Plasma and Fusion Research
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Plasma and Fusion Research 13 (0), 3405029-3405029, 2018-04-24
一般社団法人 プラズマ・核融合学会
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詳細情報 詳細情報について
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- CRID
- 1390001288037712256
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- NII論文ID
- 130007396427
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- NII書誌ID
- AA12346675
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- ISSN
- 18806821
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- 本文言語コード
- en
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- 資料種別
- journal article
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- データソース種別
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- JaLC
- IRDB
- Crossref
- CiNii Articles
- OpenAIRE
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- 抄録ライセンスフラグ
- 使用不可