Expiratory Testing as a Simple and Effective Bioassay Method for Screening Workers for Tritium Exposure in Fusion Test Facilities

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  • AKATA Naofumi
    National Institute for Fusion Science SOKENDAI (The Graduate University for Advanced Studies)
  • IWATA Chie
    National Institute for Fusion Science
  • MIYAKE Hitoshi
    National Institute for Fusion Science
  • TANAKA Masahiro
    National Institute for Fusion Science SOKENDAI (The Graduate University for Advanced Studies)

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<p>This study evaluates expiratory testing as a simple bioassay method for estimating the effective dose equivalent for individuals working inside radiation control areas in a large helical device (LHD) building at the National Institute for Fusion Science (NIFS) in Toki City, Japan. The expiratory testing apparatus is configured according to similar devices reported previously. The core components of the apparatus include the sample collection device, a water bubbler column, exhalation airflow controls, and a solution injection component. Exhaled water vapor from individual test subjects is collected and tritium levels are measured using a liquid scintillation counter. Tritium radioactivity measurements are then compared to the effective dose according to evaluation criteria estimated using the effective dose equation for tritium.</p>

収録刊行物

  • Plasma and Fusion Research

    Plasma and Fusion Research 13 (0), 1305076-1305076, 2018-06-12

    一般社団法人 プラズマ・核融合学会

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