Development of novel radiation remote-sensing method based on laser spectroscopic measurement of radiation induced radicals

Hideki Tomita, Kenichi Watanabe, Jun Kawarabayashi, Tetsuo Iguchi

研究成果: ジャーナルへの寄稿会議記事査読

3 被引用数 (Scopus)

抄録

For monitoring of intense radiation fields, such as around nuclear reactors, high energy accelerators, it is requested to develop a reliable radiation sensing method with high radiation resistance. As one of the promising methods, we propose a novel radiation remote-sensing method based on high sensitive cavity ring-down (CRD) laser spectroscopic measurement of radiation induced radicals. To verify the detection principle, we have made basic experiments on the CRD spectroscopic measurement of the radiation induced ozone concentration in the air irradiated by 60Co gamma-rays, while we have also developed the calculation model to estimate the yields of radiation induced radicals by solving simultaneous rate equations numerically. Through comparison between the experiments and the calculations, we have confirmed the detection principle and the validity of the calculation model, where the results show that the detectable range for the absorbed dose rate is from 4.8×10-2 to 3.2 Gy/s with time resolution of 35 sec by controlling the flow rate of the irradiated air.

本文言語英語
ページ(範囲)281-288
ページ数8
ジャーナルProceedings of SPIE - The International Society for Optical Engineering
5198
DOI
出版ステータス出版済み - 2004
外部発表はい
イベントHard X-Ray and Gamma-Ray Detector Physics V - San Diego, CA, 米国
継続期間: 8月 4 20038月 5 2003

!!!All Science Journal Classification (ASJC) codes

  • 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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