Thermal desorption behavior of deuterium for 6 MeV Fe ion irradiated W with various damage concentrations

Yasuhisa Oya, Xiaochun Li, Misaki Sato, Kenta Yuyama, Long Zhang, Sosuke Kondo, Tatsuya Hinoki, Yuji Hatano, Hideo Watanabe, Naoaki Yoshida, Takumi Chikada

Research output: Contribution to journalArticle

28 Citations (Scopus)

Abstract

Abstract W samples were irradiated at 300 K with 6 MeV Fe ion with damage concentrations in the range from 0.0003 to 1.0 displacements per atom (dpa) and then implanted at 300 K with 500 eV D ions to a fluence of 5 × 1021 D/m2. Deuterium retention in the damaged samples was examined in situ by thermal desorption spectrometry (TDS). Simulation of the TDS spectra was performed using the Hydrogen Isotope Diffusion and Trapping (HIDT) simulation code to reveal the binding energies for deuterium captured by the ion-induced defects. It has been shown that the deuterium TDS spectra consist of two or three peaks (depending on the damage concentration) at about 400, 600 and 800 K, and can be simulated by the HIDT simulation code with the use of hydrogen-trap binding energies of 0.65, 1.25, and 1.55 eV.

Original languageEnglish
Article number49001
Pages (from-to)336-340
Number of pages5
JournalJournal of Nuclear Materials
Volume461
DOIs
Publication statusPublished - 2015 Jul
Externally publishedYes

ASJC Scopus subject areas

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

Fingerprint Dive into the research topics of 'Thermal desorption behavior of deuterium for 6 MeV Fe ion irradiated W with various damage concentrations'. Together they form a unique fingerprint.

  • Cite this

    Oya, Y., Li, X., Sato, M., Yuyama, K., Zhang, L., Kondo, S., Hinoki, T., Hatano, Y., Watanabe, H., Yoshida, N., & Chikada, T. (2015). Thermal desorption behavior of deuterium for 6 MeV Fe ion irradiated W with various damage concentrations. Journal of Nuclear Materials, 461, 336-340. [49001]. https://doi.org/10.1016/j.jnucmat.2015.03.032