Studies of radioluminescence in fused silica core fibers

K. Toh, T. Shikama, T. Kakuta, S. Nagata, B. Tsuchiya, C. Mori, J. Hori, T. Nishitani

研究成果: Conference article査読

2 被引用数 (Scopus)

抄録

Strong radioluminescence band and peaks were observed in fused silica core optical fibers under irradiation in fission reactors of Japan Materials Testing Reactor (JMTR) and in gamma-irradiation facility. A broad band in 400-1700 nm could be attributed to Cerenkov radiation, whose intensity was proportional to inverse of the third power of wavelength. The optical intensity of the peak at 450 nm, that was considered to be generated by oxygen vacancies, was proportional to the reactor power under the electronic excitation dose rate up to 5.0 × 103 Gy/s, and the dynamic range was at least more than five orders of magnitude. The peak intensity depends on details of silica microstructures and became twice after annealing at 773K. By using these radioluminescence peak and band, wide range dosimetry could be actualized in heavy radiation environments.

本文言語English
ページ(範囲)215-220
ページ数6
ジャーナルProceedings of SPIE - The International Society for Optical Engineering
4786
DOI
出版ステータスPublished - 2002 12月 1
イベントPenetrating Radiation Systems and Applications IV - Seattle, WA, United States
継続期間: 2002 7月 92002 7月 11

ASJC Scopus subject areas

  • 電子材料、光学材料、および磁性材料
  • 凝縮系物理学
  • コンピュータ サイエンスの応用
  • 応用数学
  • 電子工学および電気工学

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