Study of radiation induced conductivity by ac-method in a fission reactor

Tatsuo Shikama, Minora Narui, Yasuichi Endo, Akira Ochiai, Hideo Kayano

Research output: Contribution to journalArticlepeer-review

30 Citations (Scopus)


The ac resistivity of single crystal α-alumina was measured in the JMTR fission reactor. The irradiation temperature was 600–630 K. The fast neutron flux of 3.4×1018 n/m2 s and γ-ray dose rate of 2.7×103 Gy/s matched the expected irradiation conditions in a next-generation fusion device. The resistivity decreased nearly linearly with increase in the reactor power, which is caused by radiation induced conductivity. We also observed a long-term degradation of electrical resistivity, which is similar to radiation induced electrical degradation.

Original languageEnglish
Pages (from-to)544-547
Number of pages4
JournalJournal of Nuclear Materials
Publication statusPublished - 1992 Jan 1

ASJC Scopus subject areas

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


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