Abstract

Results are presented from calculating the neutron radiation of spent nuclear fuel (SNF) from stationary campaigns of VVER-1000 and VVER-1200 reactors due to spontaneous fission and (α, n) reactions. An analytical dependence is obtained for the average number of neutrons produced in spent nuclear fuel per α-particle on the particle’s energy. The neutron radiation of VVER-1200 spent nuclear fuel is several times higher than that of a VVER-1000 reactor, due primarily to the increased number of ²⁴⁴Cm isotopes produced in high-burnup fuel.

中文翻译：

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计算VVER-1200反应堆乏燃料中子的中子辐射

摘要

通过计算由于自发裂变和（α，n）反应引起的VVER-1000和VVER-1200反应堆的静止运动中乏核燃料（SNF）的中子辐射，得出了结果。对于每个α粒子在乏核燃料中产生的中子平均数量对粒子能量的解析依赖性。VVER-1200乏核燃料的中子辐射比VVER-1000反应堆的中子辐射高几倍，这主要是由于高燃耗燃料中产生的²⁴⁴ Cm同位素数量增加。