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Author(s):
岩切宏友、松廣健二郎、廣岡慶彦、山村泰道、PWIー作業会メンバー
Hirotomo Iwakiri, Kenjirou Matsuhiro, Yoshi Hirooka, Yasunori Yamamura and PWI-Taskgroup
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Title:
プラズマー壁相互作用関連データ集ー１
「プラズマ対向材料中の水素同位体リテンションと関連する拡散係数・再結合係数データベース」
Plasma-Wall Interactions Data Compendium-1 “Hydrogen Retention Property, Diffusion and Recombination Coefficients Database for Selected Plasma-Facing Materials”
Date of publication:
May 2002
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Key words:
hydrogen retention, hydrogen recycling, tritium inventory, steady-state magnetic fusion device, plasma-wall interactions database, hydrogen diffusion coefficient, hydrogen recombination coefficient, surface recombination, bulk recombination
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Abstract:
A summary on the recent activities of the plasma-wall interactions database task group at the National Institute for Fusion Science is presented in this report. These activities are focused on the compilation of literature data on the key parameters related to wall recycling characteristics that affect dynamic particle balance during plasma discharges and also on-site tritium inventory. More specifically, in this task group a universal fitting formula has been proposed and successfully applied to help compile hydrogen implantation-induced retention data. Also, presented here are the data on hydrogen diffusion and surface recombination coefficients, both critical in modeling dynamic wall recycling behavior. Data compilation has been conducted on beryllium, carbon, tungsten and molybdenum, all currently used for plasma-facing components in magnetic fusion experiments.
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