Temperature dependence of deuterium retention in tungsten deposits by deuterium ion irradiation

K. Katayama, K. Uehara, H. Date, S. Fukada, H. Watanabe

研究成果: Contribution to journalArticle査読

8 被引用数 (Scopus)

抄録

Abstract Tungsten (W) deposits were formed by hydrogen plasma sputtering and blisters were observed on the surface. The W deposits and W foils were exposed to deuterium ions with 2 keV-D2+ to doses of 1.0 × 1021 D2+/m2 at 294 and 773 K in addition to 573 K in the present authors' previous work. Hydrogen isotopes release behaviors from the W deposits and W foils were observed by the thermal desorption spectroscopy method. The amount of deuterium released from the W deposit was considerably larger than that from W foil. The obtained deuterium retention in D/m2 was in the range of deuterium retention in polycrystalline tungsten. Not only implanted deuterium but also hydrogen, which was incorporated during the sputtering-deposition process, were released from the W deposits. A hydrogen release peak at around 1100 K was observed for the W deposits. This is considered to be due to the rupture of the blisters.

本文言語英語
論文番号48697
ページ(範囲)1033-1036
ページ数4
ジャーナルJournal of Nuclear Materials
463
DOI
出版ステータス出版済み - 7 22 2015

All Science Journal Classification (ASJC) codes

  • 核物理学および高エネルギー物理学
  • 材料科学(全般)
  • 原子力エネルギーおよび原子力工学

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