响应系数法解析土壤中^(137)Csγ能谱  

Response Coefficient Analysis Method of ^(137) Cs Gamma Spectrum in Soil

作　　者：王瑞俊[1] 李静 段媛媛[3] WANG Rui-jun;LI Jing;DU AN Yuan-yuan(China Institute for Radiation Protection,Taiyuan 030006,China;Fujian Ningde Nuclear Power Co.,LTD,Ningde,Fujian 355200,China;Shanxi Conservancy Technical Institute,Taiyuan 030032,China)

机构地区：[1]中国辐射防护研究院,太原030006 [2]福建宁德核电有限公司,福建宁德355200 [3]山西水利职业技术学院,太原030032

出　　处：《核电子学与探测技术》2021年第3期543-546,共4页Nuclear Electronics & Detection Technology

摘　　要：一般环境土壤中^(137)Cs因活度浓度较低,使用γ能谱测量时,净峰面积受到天然核素的影响,监测结果有较大的不确定度。为有效降低天然核素的影响,采用响应系数计算^(137)Cs净峰面积,能够有效提商监测结果的稳定性和可靠性。对实际样品和平行样品的测量结果表明,该方法具有更优的稳定性和准确性。Due to the low activity concentration of ^(137)Cs in general environmental soil,the net peak area is affected by natural nuclides when using gamma ray spectrometry,so the monitoring results have great uncertainty.In order to reduce the impact of natural nuclides effectively,the response coefficient is used to calculate the net peak area of ^(137)Cs,which can improve the stability and reliability of monitoring results effectively.The measurement results of real samples and parallel samples show that the method has better stability and accuracy.

关 键 词：Γ能谱 ^(137)Cs 本底 

分 类 号：TL817[核科学技术—核技术及应用]