Particle reflections of low energy light ions from a vanadium alloy (V-4Cr-4Ti)

H. Yamaoka, N. Tanaka, Y. Matsumoto, M. Nishiura, K. Tsumori, S. Takeuchi, H. Sugawara, K. Shinto, A. Okamoto, M. Sasao, M. Wada

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7 Citations (Scopus)

Abstract

The angular distributions and energy spectra of positive and negative ions reflected from a vanadium alloy (V-4Cr-4Ti) bombarded by beams of low energy (1-2 keV) ions of H, He, and O were measured. The intensities of H+ or H- produced from reflection of 2 keV H+ beam at the surface of vanadium alloy showed the maxima at the angles closer to the surface normal from the mirror reflection angle, compared with Mo and W samples. The time dependence of the angular distributions of the reflected H+ or H- ions measured at the sample temperature of about 240-260 °C showed a shift of the peak in the angular distribution to the mirror reflection angle.

Original languageEnglish
Pages (from-to)1304-1308
Number of pages5
JournalJournal of Nuclear Materials
Volume363-365
Issue number1-3
DOIs
Publication statusPublished - 2007 Jun 15

Keywords

  • Edge plasma
  • First wall
  • Hydrogen inventory
  • Ion-surface interactions
  • Vanadium

ASJC Scopus subject areas

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

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