Effect of periodic deuterium ion irradiation on deuterium retention and blistering in Tungsten

M. Oya, H. T. Lee, A. Hara, K. Ibano, M. Oyaidzu, T. Hayashi, Y. Ueda

研究成果: ジャーナルへの寄稿記事

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The effect of periodic irradiation on Deuterium (D) retention and blistering in Tungsten (W) was investigated. W samples were exposed to D plasma at a fixed fluence while varying the irradiation cycle number (1-shot, 2-shots and 3-shots). Exposure energy and flux were ∼50 eV and ∼1 × 1022 D m−2 s−1, respectively. Sample temperatures were 537 K and 643 K. At 573 K, D retention and blister density decreased with increasing number of irradiation cycle. In contrast at 643 K, D retention showed no dependence on number of irradiation cycle. Therefore, sample temperature during irradiation is an important parameter in comparing the results of continuous and periodic irradiation, especially in studies involving extremely-high-flux (>1024 D m−2 s−1) irradiation and fluence dependency of D retention.

元の言語英語
ページ(範囲)674-677
ページ数4
ジャーナルNuclear Materials and Energy
12
DOI
出版物ステータス出版済み - 8 2017

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All Science Journal Classification (ASJC) codes

  • Nuclear and High Energy Physics
  • Materials Science (miscellaneous)
  • Nuclear Energy and Engineering

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