Radioluminographic Monitoring of Radioactive Surface Contamination on a Rough Surface Material.

  • FURUTA Etsuko
    Radioisotope Laboratory, Faculty of Science, Ochanomizu University
  • YOSHIZAWA Yukio
    Radioisotope Research Center, The Jikei University School of Medicine
  • NATAKE Takashi
    Radioisotope Research Center, The Jikei University School of Medicine
  • TAKIUE Makoto
    Radioisotope Research Center, The Jikei University School of Medicine

Bibliographic Information

Other Title
  • イメージングプレートによる粗表面汚染密度測定
  • イメージング プレート ニヨル ソヒョウメン オセン ミツド ソクテイ

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Abstract

Floating radioluminography using an imaging plate can be sufficiently applied to the monitoring of the surface contamination on rough surface materials at a radioisotope facility. This technique is superior to the smear method which has been used to estimate the contamination of low energy β-ray emitters, because the fixed contamination and the contamination on the coarse surface materials have been difficult to be wiped out on a smear paper. The radiation detection efficiency of the imaging plate is as high as the liquid scintillation technique, when the plate is exposed with the sample in a vacuum chamber. In this study, the technique has been tested to the surface monitoring of a liquid-waste concrete cistern, and the sort of contaminant radioisotope was estimated by inserting a plastic film or an aluminum plate between the imaging plate and the sample.

Journal

  • RADIOISOTOPES

    RADIOISOTOPES 46 (12), 912-916, 1997

    Japan Radioisotope Association

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