Sorption and desorption behavior of hydrogen isotopes from tungsten deposits caused by deuterium gas or deuterium plasma exposure

Shinichiro Ishikawa, Kazunari Katayama, Yasuhito Ohnishi, Satoshi Fukada, Masabumi Nishikawa

研究成果: ジャーナルへの寄稿記事

7 引用 (Scopus)

抄録

To understand the behavior of hydrogen isotopes in deposits formed on plasma-facing wall is an important issue for development of a fusion reactor. In this study, sorption/desorption behaviors of hydrogen isotopes when tungsten deposits were exposed to deuterium gas or deuterium plasma at 300 °C were investigated. Samples of tungsten deposits were produced by the sputtering method using hydrogen plasma. After deuterium gas exposure or deuterium plasma exposure, the desorption behavior of hydrogen isotopes from the deposit was observed by the thermal desorption spectroscopy method. It was found that not a small amount of deuterium is retained in tungsten deposit by not only the plasma exposure but also the gas exposure while the amount of hydrogen incorporated in the deposit during sputter-deposition process is reduced. The amount of deuterium retained in the deposit by the plasma exposure was larger than that by the gas exposure in the experimental conditions in this work. The amount of hydrogen left after deuterium plasma exposure was larger than that after deuterium gas exposure.

元の言語英語
ページ(範囲)1390-1394
ページ数5
ジャーナルFusion Engineering and Design
87
発行部数7-8
DOI
出版物ステータス出版済み - 8 1 2012

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Tungsten deposits
Deuterium
Isotopes
Sorption
Hydrogen
Desorption
Gases
Plasmas
Thermal desorption spectroscopy
Facings
Sputter deposition
Fusion reactors
Sputtering

All Science Journal Classification (ASJC) codes

  • Civil and Structural Engineering
  • Nuclear Energy and Engineering
  • Materials Science(all)
  • Mechanical Engineering

これを引用

Sorption and desorption behavior of hydrogen isotopes from tungsten deposits caused by deuterium gas or deuterium plasma exposure. / Ishikawa, Shinichiro; Katayama, Kazunari; Ohnishi, Yasuhito; Fukada, Satoshi; Nishikawa, Masabumi.

:: Fusion Engineering and Design, 巻 87, 番号 7-8, 01.08.2012, p. 1390-1394.

研究成果: ジャーナルへの寄稿記事

Ishikawa, Shinichiro ; Katayama, Kazunari ; Ohnishi, Yasuhito ; Fukada, Satoshi ; Nishikawa, Masabumi. / Sorption and desorption behavior of hydrogen isotopes from tungsten deposits caused by deuterium gas or deuterium plasma exposure. :: Fusion Engineering and Design. 2012 ; 巻 87, 番号 7-8. pp. 1390-1394.
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