At first , the effect of the target on the neutron flux is discussed to determine the optimal proton energy , target material , shape and dimension by using the high-energy particle transport code NMTC / JAM .
首先利用高能粒子输运程序NMTC/JAM计算了入射质子能量、靶的材料、形状、尺寸以及靶与慢化器耦合对中子通量的影响。