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计算了电子加速器中不同能量的电子垂直入射到钨靶和金靶上时的光中子产额。采用 Monte Carlo 程序EGS4对电子光子簇在靶中的输运进行模拟 ,计算出光子在靶中的径迹长度 ,从而求出光中子产额。对电子加速器钨靶和金靶中的光中子产额进行了计算 ,得到了电子加速器中光中子产额随打靶电子能量变化的规律及随靶厚度变化的规律 ,为加速器靶和屏蔽系统的设计提供依据 ,并为计算光中子的剂量分布和复合靶中的光中子产额奠定基础
The photon neutron yield of electrons with different energies in the electron accelerator when they were incident on the tungsten target and the gold target was calculated. Monte Carlo program EGS4 was used to simulate the transport of electron photon clusters in the target and the photon length in the target was calculated to obtain photon neutron yield. The photon neutron yield in the electron accelerator tungsten target and the gold target was calculated, and the law of the photon neutron yield with the target electron energy change and the variation with the target thickness was obtained for the accelerator. For the accelerator target and the shielding system Provide a basis for the design and provide a basis for calculating the dose distribution of photoneutrons and photoneutrinosity in the composite target