Determination of natural radioactivity of soil and assessment of radioactive environmental  impact in Xiazhuang granite uranium ore field, Guangdong

WU Xinmin1 LIU Qingcheng1 YANG Yaxin1; 2 ZHENG Yongming1 ZHANG Baosong1  1

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Determination of natural radioactivity of soil and assessment of radioactive environmental impact in Xiazhuang granite uranium ore field, Guangdong

更新时间：2021-03-12

- Determination of natural radioactivity of soil and assessment of radioactive environmental impact in Xiazhuang granite uranium ore field, Guangdong
- NUCLEAR TECHNIQUES Issue 12, (2005)
- 作者机构：
  
  1. 东华理工学院探测与信息技术系
  2. 南京大学物理系南京,210093
  3. 东华理工学院探测与信息技术系,抚州,344000
- 作者简介：
- 基金信息：
  
  核工业地质局经费资助(项目编号:200115和200337)
- DOI：
  CLC： X837
- Published：01 December 2005
- 稿件说明：
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[1]吴信民,刘庆成,杨亚新,郑勇明,张宝松.广东下庄铀矿田土壤天然放射性测定及环境影响评价[J].核技术,2005(12):918-921.

WU Xinmin1 LIU Qingcheng1 YANG Yaxin1, 2 ZHENG Yongming1 ZHANG Baosong1 1. Determination of natural radioactivity of soil and assessment of radioactive environmental impact in Xiazhuang granite uranium ore field, Guangdong[J]. Nuclear techniques, 2005, (12): 918-921.
[1]吴信民,刘庆成,杨亚新,郑勇明,张宝松.广东下庄铀矿田土壤天然放射性测定及环境影响评价[J].核技术,2005(12):918-921. DOI：

WU Xinmin1 LIU Qingcheng1 YANG Yaxin1, 2 ZHENG Yongming1 ZHANG Baosong1 1. Determination of natural radioactivity of soil and assessment of radioactive environmental impact in Xiazhuang granite uranium ore field, Guangdong[J]. Nuclear techniques, 2005, (12): 918-921. DOI：

摘要

用高纯锗γ能谱分析仪测量了广东下庄铀矿田土壤中放射性核素226Ra、232Th和40K的比活度

它们分别为112（40.2—442）Bq/kg

71.5（32.6—88.1）Bq/kg

672（442—913）Bq/kg。同全国和全世界的平均值相比

226Ra的含量明显偏高。在测得放射性核素226Ra、232Th和40K的比活度此基础上

计算了距地面1m高处空气中γ辐射吸收剂量率和年有效剂量率

并对γ辐射外照射水平进行了评价。评价结果表明

下庄铀矿田的土壤中天然放射性水平处于正常范围。

Abstract

This work deals with the determination of natural radioactivity of soil in Guangdong Province Xiazhuang granite uranium ore field by using a γ-ray spectrometer. The activity concentrations for 226Ra

232Th and 40K obtained were 112 (from 40.2 to 442)

71.5 (from 32.6 to 88.1)

and 672 (from 442 to 913) Bq/kg

respectively. Compared with the average value of countrywide and worldwide

the activity concentration of 226Ra was obviously greater than them. To assess the radiological hazard of the natural radioactivity in soil

the absorbed dose rate and annual effective dose rate were calculated. The results show that there is a normal level of natural radioactivity of soil in the Xiazhuang granite uranium ore field.

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