Rapid Detection and Estimation of an Unexpected Atmospheric Release of ^<129>I

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概要

• 論文の詳細を見る

• A sampling system was designed to rapidly detect an unexpected release of ^<129>I during a weekly batch-sampling of a stack gas. The system consisted mainly of a sampling unit and an iodine monitor with an NaI(Tl) scintillation detector. A relationship between in situ count rate of the monitor and ^<129>I activity collected in the sampling unit was derived from several sets of data obtained with the system at the Tokai reprocessing plant. The system and relationship allowed us to estimate the amount of ^<129>I release at an arbitrary time during the batch-sampling. A different iodine monitor with a Ge detector was also tested to overcome a difficulty in selective measurement of ^<129>I with the NaI(Tl) scintillation detector in the presence of ^<85>Kr in the target gas. The test demonstrated a feasibility of the real-time, ^<85>Kr-interference-free monitoring of atmospheric ^<129>I release.

• 日本保健物理学会の論文

著者

• 小嵐 淳

  日本原子力研究開発機構

• Mikami Satoshi

  Radiation Protection Department Nuclear Fuel Cycle Engineering Laboratories Tokai Research And Devel

• AKIYAMA Kiyomitsu

  Radiation Protection Department, Nuclear Fuel Cycle Engineering Laboratories, Tokai Research and Dev

• TAKEISHI Minoru

  Radiation Protection Department, Nuclear Fuel Cycle Engineering Laboratories, Tokai Research and Dev

• Akiyama Kiyomitsu

  Radiation Protection Department Nuclear Fuel Cycle Engineering Laboratories Tokai Research And Devel

• Takeishi Minoru

  Radiation Protection Department Nuclear Fuel Cycle Engineering Laboratories Tokai Research And Devel

関連論文

• Rapid Detection and Estimation of an Unexpected Atmospheric Release of ^I
• Development of a Real-Time Environmental Radiation Dose Evaluation System for the Vicinity of a Nuclear Facility
• 放射性炭素 : 環境中移行のモデル化に関する国際的な取り組み(第2部:和文)

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