100 kV X射线注量谱测量研究  

Investigation on 100 kV X⁃ray Flux Spectrum Measurement

作　　者：黄仕葵 郭思明[2] 王广西[1] 李知微 王振 周幸 舒子瑶 樊丽鹏 HUANG Shikui;GUO Siming;WANG Guangxi;LI Zhiwei;WANG Zhen;ZHOU Xing;SHU Ziyao;FAN Lipeng(Chengdu University of Technology,Chengdu,Sichuan 610059,China;National Institute of Metrology,Beijing 100029,China)

机构地区：[1]成都理工大学,四川成都610059 [2]中国计量科学研究院,北京100029

出　　处：《计量学报》2025年第3期426-432,共7页Acta Metrologica Sinica

基　　金：四川省自然科学基金(2023NSFSC0271);中国计量科学研究院基本科研业务经费(AKYZD2412)。

摘　　要：基于吸收法间接测量了100 kV X射线注量谱。介绍了解谱原理,结合响应函数和预置谱,通过解谱程序完成了100kV X射线轫致辐射谱的解谱,并通过计算其平均能量验证解谱结果的准确性。与数值分析软件计算平均能量结果相比,二者之间的误差为14%,并分析了脉冲幅度谱与X射线注量谱之间误差的原因。The flux spectrum produced by X-ray tube is indirectly measured based on the absorption method.The principle of unfolding is clarified,and combined with the response function and presetting spectrum,the unfolding of 100kV X-ray toughness radiation spectrum is completed by the unfolding program,and its mean energy is calculated to verify the accuracy of the unfolding results.Compared with the mean energy result calculated by numerical analysis software,the error between the two is 14%.And the reason for the error between the pulse amplitude spectrum and the Xray flux spectrum has been analyzed.

关 键 词：电离辐射计量 X射线注量谱 解谱 响应矩阵 平均能量 

分 类 号：TB98[一般工业技术—计量学]