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利用伴随粒子飞行时间方法,测量了入射角在5°以下、快中子在~7Li、~6Li核上弹性散射截面。用蒙特卡洛方法进行了注量率衰减、多次散射和有限角分辨修正。实验结果与理论计算作了比较,截面数据为核工程设计提供了急需的核参数。
Using incidental particle flight time method, the angle of incidence is below 5 °, and the fast scattering cross sections of fast neutrons at ~ 7Li and ~ 6Li nuclei are measured. Focused rate attenuation, multiple scattering and finite angle resolution correction were performed with Monte Carlo method. The experimental results are compared with theoretical calculations. The cross-section data provide much-needed nuclear parameters for nuclear engineering design.