论文部分内容阅读
剩余核反冲平均投影射程(以下简称反冲射程)的研究已成为研究中能核反应的有用工具之一。剩余核反冲射程的测定能反映出在核反应中所发射粒子的角分布和能谱。当出射粒子以各向同性或以90°为对称发射时,剩余核的朝前和朝后反冲射程比必定较大。这时,复合核反应机制起主要作用。当出射粒子朝前发射多于朝后发射时,朝前与朝后反冲射程比下降,即发生直接作用过程。因此,核反应机制可以通过测量剩余核的反冲射程来研
The research on the average projection range of the remaining nuclear recoil (hereinafter referred to as the recoil range) has become one of the useful tools in the study of nuclear reaction. The determination of the remaining nuclear recoil range can reflect the angular distribution and energy spectrum of the emitted particles in the nuclear reaction. When the emitted particles are isotropically or 90 ° symmetric emission, the remaining nuclear forward and backward recoil ratio must be larger. At this time, the composite nuclear reaction mechanism plays a major role. When the outgoing particle launches forward more than backward, the forward and backward recoil ratio decreases, that is, the direct action occurs. Therefore, the nuclear reaction mechanism can be studied by measuring the recoil range of the remaining nuclei