X荧光能谱分析中探测器响应函数建立方法  

Methods of Detector Response Function Establishment in X-Ray Fluorescence Spectra Analysis

作　　者：李哲[1] 庹先国[2,3] 杨剑波[1] 刘明哲[2,1] 成毅[1] 王磊[1] 周建斌[1] 

机构地区：[1]成都理工大学地学核技术四川省重点实验室,四川成都610059 [2]成都理工大学地质灾害防治与地质环境保护国家重点实验室,四川成都610059 [3]西南科技大学,四川绵阳621010

出　　处：《光谱学与光谱分析》2012年第11期3112-3116,共5页Spectroscopy and Spectral Analysis

基　　金：国家杰出青年科学基金项目(41025015);国家自然科学基金项目(40974065);核退役与核废物处置四川省青年科技创新研究团队项目(2011JTD0013);成都理工大学优秀创新团队培育计划(CDUTHY0084)资助

摘　　要：在X荧光能谱测量及分析过程中,通过建立探测器响应函数,可以实现对X荧光能谱中的全能峰峰形描述,有助于提高X荧光能谱分析速度、准确度和自动化程度。在X荧光能谱测量中,针对半导体探测器建立响应函数模型的理论与建模技术,文中对三种典型探测器响应函数建模方法,以及全能峰标准差、法诺因子等关键参数的求取进行了论述,并对已有研究进行了总结和比较。最后,对X荧光能谱测量中探测器响应函数建模方法给出了建议。During the measurement and analysis process of X-ray fluorescence spectra,it is very helpful to improve the analyze speed,accuracy and automaticity of X-ray fluorescence spectra analysis by establishing detector response function（DRF）,which represents the shape of full energy peak and can provide former basic data for subsequent X-ray analysis technique.For the theory and model of semiconductor DRF in X-ray energy spectrum measurements,methods of three typical detector response function model establishment,key parameters of full energy peak standard deviation and Fano factor calculation,etc.are discussed,and meanwhile,the summarization and contrast of existing studies are shown in this paper.Finally,the suggestion for modeling methods of DRF in X-ray fluorescence spectra measurements is provided.

关 键 词：X荧光能谱 探测器响应函数 高斯函数 全能峰标准差 法诺因子 

分 类 号：O657.3[理学—分析化学]