Investigation of radial distribution of atomic hydrogen flux to the plasma facing components in steady state discharges in QUEST tokamak

the QUEST Experiment Group

研究成果: ジャーナルへの寄稿学術誌査読

抄録

To study radial distribution of hydrogen flux in peripheral plasma in long duration tokamak discharges, permeation and Langmuir reciprocate probes are used. The atomic hydrogen flux to the walls at several radial positions is deduced from the permeation flux. Contribution of the ions to the hydrogen flow is deduced from the Langmuir probe ion saturation current. It is found, that the atomic hydrogen has the most contribution to the hydrogen flow behind the plasma facing components (PFCs), while the ion flux there is negligible. The atomic flux behind the PFCs drops to the value of F~4.3×1015H/m2/s, which is ~6 % of that just in front of PFCs, F~7.7×1016H/m2/s.

本文言語英語
論文番号100872
ジャーナルNuclear Materials and Energy
26
DOI
出版ステータス出版済み - 3月 2021
外部発表はい

!!!All Science Journal Classification (ASJC) codes

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

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