【摘要】 本文利用欧洲粒子物理实验室开发的一个包容大量探测器描述和模拟工具的软件系统Geant4(版本号:Geant4.7.0,2005)模拟了不同元素被中子激发的特征γ谱。对于不同能量的入射中子,各种特征γ光子有着不同的产额,以此提出了最优化入射中子能量的概念。对元素C、O、Fe和Cu的模拟结果显示,对于不同元素,其最优化能量也有所不同。这些元素的主要特征γ光子能量基本在0.8—7 MeV范围内。更多还原

【Abstract】 The characteristic gamma spectrums of different elements stimulated by neutrons have been studied using Geant4(Geant4.7.0,2005),a Monte Carlo simulation software.The results show that for different incident neutrons,the yield of different characteristic gamma photons are variational,from which the conception of optimal incident neutron energy is suggested.These results indicate that optimal energy for different elements is varied and the ener-gies of characteristic gamma photons for all the elements are mainly in the range of 0.8—7 MeV.更多还原