Portable chair type whole-body counter.

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説明

A portable chair type whole-body counter has been studied which is for internal contamination monitoring of the subjects working in nuclear facilities. A 3"φ × 3" NaI(Tl) crystal housed in a lead collimator is used. Findings from the study are as follows : the crystal size does not influence the screening level of internal contamination defined as a three standard deviation above the mean level of distributed counts obtained for the uncontaminated subjects. Reasonable shieldings of both detector and chair may be more than 3.8 cm of lead. A three-channel pulse height analyzer set in the γ energy region above 0.2 MeV will be suitable for the monitoring. The detection sensitivities for stomach, lung, kidney and small intestine to a 137Cs source are not lower than in the case of the homogeneous distribution in the whole body revealed by phantom study.

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詳細情報 詳細情報について

  • CRID
    1390001204097652096
  • NII論文ID
    130000829130
  • DOI
    10.3327/jnst.14.911
  • COI
    1:CAS:528:DyaE1cXls1ensw%3D%3D
  • ISSN
    18811248
    00223131
  • 本文言語コード
    en
  • データソース種別
    • JaLC
    • Crossref
    • CiNii Articles
  • 抄録ライセンスフラグ
    使用不可

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