中子场空间分布特性研究

Study on space distribution characteristic of neutron field

采用Monte-Carlo方法,以高斯聚变中子谱和麦克斯韦裂变中子谱为源谱,进行了中子在大气中输运的理论模拟,给出了不同源高度,空间不同位置处的中子注量、能谱和吸收剂量,并总结了中子场的空间分布特性。

A theoretical simulation was carried through Monte-Carlo method to get the fluence, spectrum and absorbed dose of neutron arriving at different location in space through atmosphere from different source altitude, with Gaussian fusion spectrum and Maxwell fission spectrum respectively as source spectrum. From the results calculated, Space distribution characteristic of neutron field is obtained.