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用快中子分出截面法估算了不锈钢棒对压力容器处快中子注量率的减弱程度，用二维多群粒子输运程序ＤＯＴ３．５计算了不锈钢棒的γ释热，计算了高通量工程试验堆（ＨＦＥＴＲ）设计工况和目前运行工况下不锈钢壁面温度和中心温度，对承重栅板的安全性进行了讨论，分析了不锈钢棒对堆芯的性能影响。结果表明，用不锈钢代替铝棒作最外层反射层，堆芯安全性能不变，压力容器处快中子注量率被大幅度降低。
The fast neutron separation section method was used to estimate the reduction of the fast neutron fluence rate of the stainless steel rod to the pressure vessel. The γ-heat release of the stainless rod was calculated by two-dimensional multi-particle transport program DOT3.5. Flux Engineering Test Reactor (HFETR) design conditions and the current operating conditions stainless steel wall temperature and center temperature of the load-bearing grid security were discussed, the impact of stainless steel rod on the core performance. The results show that the stainless steel instead of aluminum rod as the outermost reflector, the core safety performance unchanged, the pressure vessel at a fast neutron fluence rate is significantly reduced.