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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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 ：非一致性, 时延地震, 互约束, 差异属性

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.

Key words： non-uniform time-lapse seism mutual restraint differential attribute

收稿日期: 2004-08-30 出版日期: 2004-12-24

P631.6

基金资助:

国家自然科学基金(40274023)和中国地质调查局资助(200214100025)

作者简介: 王南萍(1957-),女,博士,副教授,现在中国地质大学(北京)任教.从1982年以来,一直从事核地球物理的教学与科研工作,目前主要从事辐射与环境相关总是的研究,发表论文30余篇.

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.
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. Geophysical and Geochemical Exploration, 2004, 28(6): 512-514,517.

链接本文:

https://www.wutanyuhuatan.com/CN/ 或 https://www.wutanyuhuatan.com/CN/Y2004/V28/I6/512

［1］刘书田,夏益华,王功鹏,等.环境污染监测实用手册［M］.北京:原子能出版社, 1997.
［2］ IAEA.Airborne gamma ray spectrometer surveying［R］.Technical reports series, IAEA, Vienna,1991.(323).
［3］ ICRU.Gamma-Ray Spectrometry in the environment［R］. ICRU Report 53,1994.44.
［4］沈正新,胡明考.航放数据用于评价天然辐射水平的可行性研究［J］.航测与遥感, 2002,(1、2):43-49.
［5］罗达玲,张纯详,关祖杰,等.野外γ谱法测定广东高本底地区土壤中放射性核素浓度及照射量率［J］.中华放射医学与防护,1985,5(2):90-95.
［6］岳清宇,陈继生,金花,等.高压电离室环境辐射剂量率仪［J］.辐射防护1986, 6(3):29-33.
［7］ DZ/T 0205 -1999.地面伽马能谱测量技术规程［S］.
［8］ UNSCEAR.United Nations Scientific Committee on the Effects of Atomic Radiation［A］.Sources and Effects of Ionizing Radiation, United Nations 2000［C］.New York:UNSCEAR, 2000.