Kinetics of deuterium penetration into neutron-irradiated tungsten under exposure to high flux deuterium plasma

M. Yajima, Y. Hatano, N. Ohno, T. Kuwabara, T. Toyama, M. Takagi, K. Suzuki

Research output: Contribution to journalArticlepeer-review

1 Citation (Scopus)

Abstract

The objective of this study is to investigate the effects of neutron (n) irradiation on hydrogen isotope transport in tungsten (W). W samples were irradiated with neutrons in a fission reactor and then exposed to high flux deuterium (D) plasma at 563 K in a linear plasma device. The fraction of D release increased with increasing exposure time. In addition, the D retention in n-irradiated W increased in proportion to the square root of the plasma exposure time. These observations were explained by increase in the penetration depth of D with filling up displacement damages acting as strong trapping sites.

Original languageEnglish
Article number100699
JournalNuclear Materials and Energy
Volume21
DOIs
Publication statusPublished - 2019 Dec

ASJC Scopus subject areas

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

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