近年来,加速器驱动次临界堆的洁净核能系统(ADS)引起许多国家的兴趣,ADS的一个重要部分是由中高能质子轰击铅靶或铅铋靶而得到的散裂中子源。在该能区,剩余核通过粒子发射和裂变过程产生,会有一些长寿命的放射性核在靶中产生和积累,如果产额较大,必须考虑如何处理这些长寿命放 In recent years, accelerator-driven sub-critical heap clean nuclear energy system (ADS) has aroused the interest of many countries. An important part of ADS is the spallation neutron source obtained by bombarding lead target or lead-bismuth target by medium-high energy protons. In this energy region, the remaining nuclei are generated by particle emission and fission processes, and some long-lived radionuclides will be generated and accumulated in the target. If the yield is large, consideration must be given to how to handle these long-lived