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

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

doi:10.1016/S0022-3115(09)80104-9

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

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

SCI - Physics

Research output: Contribution to journal › Article › peer-review

28 Citations (Scopus)

Abstract

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 language	English
Pages (from-to)	544-547
Number of pages	4
Journal	Journal of Nuclear Materials
Volume	191-194
DOIs	https://doi.org/10.1016/S0022-3115(09)80104-9
Publication status	Published - 1992 Jan 1

ASJC Scopus subject areas

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

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title = "Study of radiation induced conductivity by ac-method in a fission reactor",

abstract = "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.",

author = "Tatsuo Shikama and Minora Narui and Yasuichi Endo and Akira Ochiai and Hideo Kayano",

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T1 - Study of radiation induced conductivity by ac-method in a fission reactor

AU - Shikama, Tatsuo

AU - Narui, Minora

AU - Endo, Yasuichi

AU - Ochiai, Akira

AU - Kayano, Hideo

PY - 1992/1/1

Y1 - 1992/1/1

N2 - 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.

AB - 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.

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EP - 547

JO - Journal of Nuclear Materials

JF - Journal of Nuclear Materials

SN - 0022-3115

ER -

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

Abstract

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