Study of radiation induced electrical degradation of alumina in a dynamic pumping condition in a fission reactor

Tatsuo Shikama, Minoru Narui, Hideo Kayano, Tsutomu Sagawa

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17 Citations (Scopus)

Abstract

An electrical resistivity of polycrystal α-alumina was measured at about 680 K in a dynamic pumping condition in a fission reactor, JMTR. In a good vacuum, we observed smaller RIC (radiation-induced conductivity) than our previous results. We observed RIED (radiation-induced electrical degradation) -like behavior. The results suggested that RIED would take off faster at a higher ionizing dose rate. In the mean-time, the take-off occurred at about the same displacement damage of about 0.03-0.05 dpa in the range of fast neutron flux of (3.4-15.1) × 1013 n/cm2 s.

Original languageEnglish
Pages (from-to)1133-1137
Number of pages5
JournalJournal of Nuclear Materials
Volume212-215
Issue numberPART B
DOIs
Publication statusPublished - 1994 Sep

ASJC Scopus subject areas

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

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