Tritium release from neutron-irradiated fube purged out by Ar-H2 or Ar at controlled temperature

Yuki Edao, Satoshi Fukada, Hidetaka Noguchi, Akio Sagara

研究成果: ジャーナルへの寄稿学術誌査読

7 被引用数 (Scopus)

抄録

The rate of tritium released from temperaturecontrolled Flibe (a mixed molten salt of 2LiF + BeF2) after neutron irradiation was determined comparatively under two different conditions of Ar-H2 (10%) or Ar gas purge at a constant or linearly elevated temperature. Experimental rates of tritium release were analyzed based on its diffusion in Flibe and isotopic exchange between T atoms on surfaces and H atoms included in gaseous components. Gas released from Flibe had compositions of various ratios of HT to TF depending on the different conditions of Ar-H2 or Ar purge gas. The major molecular species of tritium released from Flibe after neutron irradiation was HT under the condition of the Ar-H2 purge and 300°C The rate of tritium release under the Ar-H2 purge was simulated well by the present analytical model. Although its chemical form immediately after the release was TF under the condition of Ar purge, it was changed to HT partly by interaction with metallic surfaces.

本文言語英語
ページ(範囲)140-151
ページ数12
ジャーナルFusion Science and Technology
55
2
DOI
出版ステータス出版済み - 1月 1 2009

!!!All Science Journal Classification (ASJC) codes

  • 土木構造工学
  • 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
  • 材料科学(全般)
  • 機械工学

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