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CONVERSION FACTORS FOR A MOBILE SURVEY METHOD BY CAR IN THE CHERNOBYL AREA

机译:切尔诺贝利地区汽车移动调查方法的转换因子

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摘要

Conversion factors for the purpose of mobile survey by car in the Chernobyl area have been evaluated using simulation calculations. In the calculations, the width of road is assumed as being 4 m, 10 m and 20 m and the surrounding area is divided into ten zones contaminated homogeneously by ~(137)Cs with different depth profiles in the ground. The air kerma contribution from all zones to the road is simulated. A conversion factor is calculated by dividing the air kerma rate in typical land-use adjacent to the road by that on the road. Conversion factors in various land uses around the roads are examined. The calculated conversion factors agree with the conversion factors measured in the Chernobyl area within an accuracy of 20%. Further, basic data, needed for composing conversion factors appropriate to other contaminated regions with different depth distributions from the Chernobyl area, are also indicated.
机译:切尔诺贝利地区用于汽车移动测量的转换因子已通过模拟计算进行了评估。在计算中,假定道路宽度为4 m,10 m和20 m,并且周围区域被划分为十个区域,均匀地被〜(137)Cs污染,并且在地面上具有不同的深度剖面。模拟了所有区域对道路的空气比释动能贡献。通过将与道路相邻的典型土地利用中的空气比释动能比除以道路上的比释能来计算转换因子。研究了道路周围各种土地利用的转换因子。计算得出的换算系数与切尔诺贝利地区测得的换算系数相符,准确度为20%。此外,还指出了组成适合于切尔诺贝利地区深度分布不同的其他受污染区域的转换因子所需的基本数据。

著录项

  • 来源
    《Radiation Protection Dosimetry》 |2003年第2期|p.165-175|共11页
  • 作者

    R. Sakamoto; K. Saito;

  • 作者单位

    Japan Atomic Energy Research Institute (JAERI) Shirakata, Tokai, Naka, 319-1195 Ibaraki, Japan;

  • 收录信息 美国《科学引文索引》(SCI);美国《化学文摘》(CA);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 TL72;
  • 关键词

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