本工作采用中国男性人体体素模型CNMAN和MCNP程序模拟放射性核素239Pu在肺部均匀分布时的不同探测器(硅或CZT探测器)的计数测量,根据模拟计算得到的探测器探测效率及光子在体表通量分布信息,为内污染活体测量实验系统探测器选型及探头总体设计提供理论参考。1人体模型中国男性人体体素模型CNMAN(中国辐射防护研究院)是基于第三军医大学采集的中国可视 In this work, the CNMAN and MCNP programs of Chinese male body were used to simulate the counting of different detectors (silicon or CZT detector) when the radionuclide 239Pu was uniformly distributed in the lung. According to the calculated detector detection efficiency and photon The distribution information of body surface flux provides a theoretical reference for the selection of the probe and the overall design of the probe in the experimental system for in-vivo measurement of contaminated living body. 1 human body model Chinese male body voxel model CNMAN (China Institute of Radiation Protection) is based on the Third Military Medical University collected China Visual