Gama dose rate contribution of artificial radioactive nuclide <sup>137</sup>Cs on the Chinese land

WANG Shaling JIANG Rangrong WANG Lei

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Gama dose rate contribution of artificial radioactive nuclide ¹³⁷Cs on the Chinese land

更新时间：2021-03-12

- Gama dose rate contribution of artificial radioactive nuclide ¹³⁷Cs on the Chinese land
- NUCLEAR TECHNIQUES Issue 2, (2001)
- 作者机构：
  
  浙江省环境放射性监测站,杭州,310012
- 作者简介：
- 基金信息：
- DOI：
  CLC： O615.3
- Published：01 February 2001
- 稿件说明：
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[1]王沙陵,姜让荣,王蕾.人工核素~(137)Cs对我国陆地γ辐射剂量率的贡献[J].核技术,2001(02):144-148.

WANG Shaling JIANG Rangrong WANG Lei. Gama dose rate contribution of artificial radioactive nuclide ¹³⁷Cs on the Chinese land[J]. Nuclear techniques, 2001, (2): 144-148.
[1]王沙陵,姜让荣,王蕾.人工核素~(137)Cs对我国陆地γ辐射剂量率的贡献[J].核技术,2001(02):144-148. DOI：

WANG Shaling JIANG Rangrong WANG Lei. Gama dose rate contribution of artificial radioactive nuclide ¹³⁷Cs on the Chinese land[J]. Nuclear techniques, 2001, (2): 144-148. DOI：

摘要

我国陆地１３７Ｃｓ沉积所造成的γ辐射剂量率，以均匀分布模式进行估算比较合理。以此得到，我国各省的１３７Ｃｓγ辐射剂量率的均值在（７—１８） ×１０－１０Ｇｙｈ－１之间，约占陆地总的γ辐射剂量率的１％－３％；考虑到人口的分布，全国的平均值约为９×１０－１０Ｇｙｈ－１，约占总γ剂量率的１．５％左右。但最高值可达１．７ × １０－８Ｇｙｈ－１，与其它任一天然放射性核素的贡献相接近。与此相比较，如果用张弛长度为３ｃｍ的指数分布模式估算，１３７Ｃｓ γ辐射剂量率的贡献比用均匀分布模式约高１倍。

Abstract

Cs deposited on the Chinese land produces r dose rate. It is fairly reasonable to estimate its contribution by using the uniform distribution model. In this study

the province averages of 137Cs r dose rate were found to be (7-18 ) x 10 -10

Gyh -1

which correspond to 1 % --3% of total r dose rate on land. The average of whole country was about 9 x 10 -10Gyh -1 and 1. 5% of total r dose rate when took the population distribution into consideration. The maximum was 1. 7 x 10 -8Gyh -1 which approached to the contribution from any natural radionuclide series. The results for 137Cs r dose rate estimated by using the exponential distribution model with 3cm average depth were about twice as large as those estimated by using the uniform distribution one.

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WANG Xiaoyan1 TIAN Junliang2 YANG Mingyi2 LIU Puling2 1

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Department of Architecture, Changsha University of Science and Technology, Changsha 410076, China) 2

中国科学院、水利部水土保持研究所

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Gama dose rate contribution of artificial radioactive nuclide 137Cs on the Chinese land

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Gama dose rate contribution of artificial radioactive nuclide ¹³⁷Cs on the Chinese land