| 伽马能谱测量在陆地伽马空气吸收剂量率评价中的应用 |
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| 引用本文： | 王南萍,黄英,肖磊,刘少敏,裴少英,高宝龙,程业勋.伽马能谱测量在陆地伽马空气吸收剂量率评价中的应用[J].物探与化探,2004,28(6):512-514,517. |
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| 作者姓名： | 王南萍 黄英 肖磊 刘少敏 裴少英 高宝龙 程业勋 |
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| 作者单位： | 中国地质大学,地球物理与信息技术学院,地下信息探测技术与仪器教育部重点实验室,北京,100083 |
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| 基金项目： | 国家自然科学基金(40274023)，中国地质调查局资助(200214100025) |
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| 摘 要： | 2002～200年,国内首次采用就地伽马能谱测量方法在广东珠海市进行了面积性测量,并用该方法定量解释求得的钾、铀、钍含量用Beck公式估算了地表1 m高处的吸收剂量率,同时用塑料闪烁体X-γ吸收剂量率仪在相同测点做了比对测量.2种方法对比结果(514个测点)显示很好的一致性,珠海市区实测吸收剂量率和伽马能谱估算吸收剂量率平均值分别为(145.07±26.5) nGy/h和(162.10±1.51) nGy/h,计算结果与实测结果的相对误差为11.74%.
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| 关 键 词： | 伽马能谱 伽马吸收剂量率 电离辐射环境 |
| 文章编号： | 1000-8918(2004)06-0512-03 |
| 收稿时间： | 2004-08-30 |
THE APPLICATION OF GAMMA-RAY SPECTROMETRY TO ESTIMATING TERRAIN GAMMA-RAY DOSE IN AIR |
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| WANG Nan-ping,XIONG Shen-qing,HUANG Ying,WU Qi-fan,XIAO Lei,LIU Shao-ming,PEI Shao-ying,GAO Bao-long,CHENG Ye-xun.THE APPLICATION OF GAMMA-RAY SPECTROMETRY TO ESTIMATING TERRAIN GAMMA-RAY DOSE IN AIR[J].Geophysical and Geochemical Exploration,2004,28(6):512-514,517. |
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| Authors: | WANG Nan-ping XIONG Shen-qing HUANG Ying WU Qi-fan XIAO Lei LIU Shao-ming PEI Shao-ying GAO Bao-long CHENG Ye-xun |
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| Institution: | WANG Nan-ping~1,XIONG Shen-qing~2,HUANG Ying~1,WU Qi-fan~2,XIAO Lei~1,LIU Shao-ming~1,PEI Shao-ying~1,GAO Bao-long~1,CHENG Ye-xun~1 |
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| Abstract: | Terrain gamma-ray absorption dose is an important parameter in estimating the ionization radiation environment level. Gamma-ray dose calculated by in-situ gamma-ray spectrometric data has been studied and used abroad since 1970s, and terrain dose mapping has been carried out in U.S.A, Sweden and Russia. In China, gamma-ray spectrometer survey was carried out in Zhuhai, Guangdong Province, from 2002 to 2003. The dose rate was calculated by Beck Expression using concentrations of 238U,232Th and 40K measured by in-situ spectrometer. The results coincide with the gamma-ray dose measured by dosemeter. The measured and calculated average dose rates are (144.86±27.21) nGy/h and (136.34±26.71) nGy/h, respectively, in Zhuhai City. |
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| Keywords: | gamma-ray spectrometry gamma-ray absorption rate ionization radiation environment |
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