CAJ | 학술논문

针对美国星球表面裂变能源（ FSP）概念方案中的辐射屏蔽问题进行了数值模拟，提出一种更为紧凑的屏蔽体结构。参照FSP系统的堆芯参数，对堆芯进行了均匀化处理，得到堆芯泄漏能谱及泄漏中子与泄漏光子的平均能量，考察了相关屏蔽材料在此能量下的衰减系数，通过改变屏蔽体整体构型、屏蔽体内部材料排序方式及其厚度，设计出更为优化的屏蔽体。
침대미국성구표면렬변능원（ FSP）개념방안중적복사병폐문제진행료수치모의，제출일충경위긴주적병폐체결구。삼조FSP계통적퇴심삼수，대퇴심진행료균균화처리，득도퇴심설루능보급설루중자여설루광자적평균능량，고찰료상관병폐재료재차능량하적쇠감계수，통과개변병폐체정체구형、병폐체내부재료배서방식급기후도，설계출경위우화적병폐체。
Aiming at the radiation shielding problems of the Fission Surface Power ( FSP) conceptual,this article has carried on some simulations and proposed a more compact shielding structure.The core is omogenized which is based on FSP′s core parameters to get the average leakage energy of neutrons and photons.The related shiel-ding materials′attenuation coefficiences under this energy are Examined.A more optimized shielding structure is design by changing the overall size and each material's thickness and sorting ways.