• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文会议>International Conference on High Levels of Natural Radiation and Radon Areas >New public dose assessment of elevated natural radiation areas of Ramsar (Iran) for epidemiological studies
【24h】

New public dose assessment of elevated natural radiation areas of Ramsar (Iran) for epidemiological studies

机译：流行病学研究Ramsar（伊朗）高升高的自然辐射区域的新公共剂量评估

获取原文
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

The potential annual effective doses of the public in Ramsar and its elevated level natural radiation areas (ELNRA) from the external and internal exposures received indoors and outdoors were determined. This paper only reports the potential annual effective doses from the external exposure, the rate of which was measured in 1000 locations outdoors and in 800 locations indoors, 200 in ENLRA and 600 in low level natural radiation areas (LLNRA). An SPP2 Scintillometer, a Reuter-Stokes pressurized ionization chamber and a SAPOS system of an environmental early warning network were used for measuring the exposure rates. The distribution of the absorbed dose rates in air, indoors and outdoors, with their mean values were determined. The absorbed dose rates in the air outdoors range from 0.08 to 20 μGy h~(-1) with occasional higher values up to 100 μGy h~(-1) over some hot spots. The isodose and topological exposure rate maps of the region were drawn. The cosmic ray dose rate of 32 nGy h~(-1) was measured over the Caspian Sea using the pressurized ionization chamber. The absorbed dose rates in the air indoors range from 0.01 to 30 μGy h~(-1) with occasional higher values up to 105 μGy h~(-1) on the wall of one room in a house in Talesh Mahalleh. The topological map of the exposure rates over the wall is also reported. As expected, Talesh Mahalleh showed the highest potential effective public doses from terrestrial radiation. The potential annual effective doses of the public in ELNRA range from 0.6 to 131 mSv with a mean value of 6 mSv, and in LLNRA, these range from 0.6 to 1.5 mSv with a mean value of 0.7 mSv. The distributions of percent population in different annual effective dose intervals in Ramsar and its ELNRA were also obtained. The mean potential annual effective doses in ELNRA are about 10 times higher than those in ELNRA, but some individual effective doses are about 200 times higher than the mean of LLNRA. The results are reported and discussed.
机译：确定潜在年度有效的公众效力，从室内和室外接受的外部和内部暴露的外部和内部暴露的潜在年度有效剂量。本文仅报告了外部曝光的潜在年度有效剂量，其速率在室外1000个地区测量，在室内的800个地点，200英寸境内的200个，在低水平的自然辐射区域（LLNRA）。 SPP2闪烁计，REUTER-STOKES加压电离室和环境预警网络的SAPOS系统用于测量曝光率。确定了空气中吸收剂量率的分布，在室内和户外分布，其平均值。空气中的吸收剂量率在户外范围为0.08至20μgsh〜（-1），在一些热点上偶尔的较高值高达100μg〜（-1）。拉伸该区域的异索和拓扑曝光率图。使用加压电离室在里海海洋上测量32岁H〜（-1）的宇宙射线剂量率。空气中的吸收剂量率在室内的范围为0.01至30μgsh〜（-1），偶尔在一个房间的一个房间的一个房间的墙壁上的距离高达105μgsh〜（-1）。还报道了墙壁上的曝光率的拓扑图。正如预期的那样，Talesh Mahalleh从陆地辐射展示了最高的潜在有效的公众剂量。 ELNRA的潜在年度有效剂量的公众在0.6至131msv的范围内，平均值为6 msv，并且在LLNRA中，这些范围为0.6至1.5msV，平均值为0.7msV。还获得了ramsar及其Elnra中不同年度有效剂量间隔的群体百分比分布。 Elnra的平均潜在年效剂量比Elnra的平均年效剂量约为10倍，但一些个体有效剂量比LLNRA的平均值高约200倍。报告并讨论了结果。

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