CAJ | 학술논문

根据D-T中子源260 keV氘束流能量下的中子能谱和角分布数据,建立了D-T中子源模型,在中子发生器各元件材料及实验大厅墙壁对快中子的慢化、散射和吸收的条件下,采用MCNP模拟程序对强流中子发生器n-γ辐射场进行了模拟研究,得到了中子能谱、中子和γ角分布、n-γ比等重要参数.模拟结果与有关文献实验数据的基本吻合,验证了所建立的MCNP模拟模型的可靠合理.
근거D-T중자원260 keV도속류능량하적중자능보화각분포수거,건립료D-T중자원모형,재중자발생기각원건재료급실험대청장벽대쾌중자적만화、산사화흡수적조건하,채용MCNP모의정서대강류중자발생기n-γ복사장진행료모의연구,득도료중자능보、중자화γ각분포、n-γ비등중요삼수.모의결과여유관문헌실험수거적기본문합,험증료소건립적MCNP모의모형적가고합리.
A D-T neutron source model was constructed. The n-γ field distribution of the intense neutron generator with 260 keV deuteron beam at Lanzhou University was simulated using MCNP code. The interactions between neutron and the materials of neutron generator and the shielding walls were included in this study. The neutron energy spectrum,the angular distribution of neutron and γ-ray,and the n-γ ratio were presented. The M-C simulation results were compared to the experimental data to verify the reliability of the D-T neutron source model.