Isotope effects in thermal neutron transmission and backscattering processes for ε-phase zirconium hydrides and deuterides

B. Tsuchiya, R. Yasuda, M. Teshigawara, K. Konashi, S. Nagata, T. Shikama, M. Yamawaki

Research output: Contribution to journalArticlepeer-review

2 Citations (Scopus)

Abstract

Distributions of hydrogen isotope concentrations in ε-phase zirconium hydrides and deuterides (ε-ZrHx and ε-ZrDx: 1.8 < x < 2.0) were investigated by neutron radiography (NRG). The NRG images of the thermal neutron transmission and backscattering revealed hydrogen concentration dependence and isotope differences. The thermal neutron mass attenuation coefficients in relation to the hydrogen isotope concentrations were determined from the transmission NRG images. The results showed the isotope effects of the thermal neutron mass attenuation coefficients for ε-ZrHx to be about 6-9 times higher than those for ε-ZrDx. The neutron scattering processes for transmission and backscattering NRG images of ε-ZrHx and ε-ZrDx were also analyzed using a general Monte Carlo neutron-particle transport (MCNP) code.

Original languageEnglish
Pages (from-to)60-65
Number of pages6
JournalJournal of Nuclear Materials
Volume376
Issue number1
DOIs
Publication statusPublished - 2008 May 15

ASJC Scopus subject areas

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

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