Electrical conductivities of dense and porous alumina under reactor irradiation

B. Tsuchiya, T. Shikama, Shinji Nagata, K. Toh, M. Narui, M. Yamazaki

研究成果: Conference article査読

抄録

Radiation induced changes of electrical conductivity for alumina varying density were investigated during fission reactor irradiation. Radiation induced conductivity (RIC) for dense and porous alumina increased due to electronic excitation with increasing the reactor power. The RIC at the reactor full power of 50 MW with ionization dose rate of 2.3 kGy/s and fast neutron flux of 1.4-1.6×1017 n/m2s was higher by about two orders of magnitude than base conductivities at 0 MW. The RIC for porous alumina was about 3.3 times as much as that for dense alumina. The RIC of dense and porous alumina at 50 MW decreased at the initial fluence and reached a constant at fast neutron fluences of about 5.5×1022 and 2.5×10 22 n/m2, respectively and subsequently kept up to the resultant ionization dose of 4.4×103 MGy and the fast neutron fluence of about 2.9×1023 n/m2.

本文言語English
ページ(範囲)1511-1514
ページ数4
ジャーナルJournal of Nuclear Materials
329-333
1-3 PART B
DOI
出版ステータスPublished - 2004 8月 1
イベントProceedings of the 11th Conference on Fusion Research - Kyoto, Japan
継続期間: 2003 12月 72003 12月 12

ASJC Scopus subject areas

  • 核物理学および高エネルギー物理学
  • 材料科学(全般)
  • 原子力エネルギーおよび原子力工学

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