• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Radiation measurements >Measurements of radon and thoron concentrations in high radiation background area using pin-hole dosimeter
【24h】

Measurements of radon and thoron concentrations in high radiation background area using pin-hole dosimeter

机译：使用针孔剂量计测量高辐射背景区域中的and和浓度

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

In present investigation, newly designed twin cup pin-hole dosimeter with LR-115 track detector has been used for the integrated measurements of radon and thoron in the environmental air of a high background radiation area in coastal Orissa. The twin cup dosimeters were calibrated before installation in the field. The calibration experiment was made in an inter calibration exercise at NIRS, Chiba, Japan. The resulting calibration factors were used to obtain the values of radon and thoron in the study area. Radon and thoron concentrations in the houses of study area were found to vary from 24 Bq/m~3 to 98 Bq/ m~3 and 46 Bq/m~3 to 689 Bq/m~3, respectively. The indoor and outdoor gamma dose rates in the study area vary from 0.124 μGy/h to 0.257 μGy/h and 0.109 μGy/h to 0.361 μGy/h, respectively. The annual effective dose due to the exposure to indoor radon and progeny was found to vary from 0.70 mSv to 2.84 mSv with an average value of 1.73 mSv. However, the annual effective dose due to the exposure to thoron and progeny was found to vary from 1.16 mSv to 17.36 mSv with an average value of 7.36 mSv. Thoron concentration and gamma dose rate were found relatively higher in the area.
机译：在目前的研究中，新设计的带有LR-115轨道探测器的双杯针孔剂量计已用于奥里萨邦沿海高背景辐射区环境空气中ra和的综合测量。在现场安装之前，对双杯剂量计进行了校准。校准实验是在日本千叶市NIRS的内部校准练习中进行的。所得的校准因子用于获得研究区域中ra和and的值。研究区域房屋中和的浓度分别为24 Bq / m〜3至98 Bq / m〜3和46 Bq / m〜3至689 Bq / m〜3。研究区域的室内和室外伽马剂量率分别从0.124μGy/ h到0.257μGy/ h和0.109μGy/ h到0.361μGy/ h不等。发现由于暴露于室内ra和子代而产生的年有效剂量在0.70 mSv至2.84 mSv之间变化，平均值为1.73 mSv。然而，发现由于暴露于和子代而产生的年有效剂量在1.16 mSv至17.36 mSv之间变化，平均值为7.36 mSv。发现该地区的concentration气浓度和伽马剂量率相对较高。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号