【摘 要】
：
测量了8.17MeV与10.27MeV中子与9Be和6,7Li作用的次级中子双微分截面.对于10.27MeV,为了消除从D(d,np)破裂反应来的源破裂中子对双微分截面测量结果的影响,采用了常规多探测
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测量了8.17MeV与10.27MeV中子与9Be和6,7Li作用的次级中子双微分截面.对于10.27MeV,为了消除从D(d,np)破裂反应来的源破裂中子对双微分截面测量结果的影响,采用了常规多探测器快中子飞行时间谱仪和非常规多探测器快中子飞行时间谱仪相结合的办法.用Monte-Carlo方法对实验测量得到的飞行时间谱进行了详细的模拟,通过测量谱与模拟谱的比较,得到了实验测量的次级中子双微分截面.实验测量结果以n-p(常规谱仪)和n-C(非常规谱仪)弹性散射微分截面作为归一.测量结果与评价数据以及其他测量数据进行了比较.用一个基于Hauser-Feshbach和激子模型的轻核核反应理论模型对6,7Li的次级中子双微分截面进行了计算,理论计算结果与实验结果符合得较好.
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