聚变等离子体中子发射能谱模拟计算与聚变中子能谱仪研究

来源 :第十七届全国等离子体科学技术会议 | 被引量 : 0次 | 上传用户:yisheng8585
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基于NUBEAM和GENESIS数值模拟程序,分别建立了中性束注入时EAST中子能谱计算模型,提出优于HB模型的MHB模型,实现EAST中性束注入下,中子能谱各个成分的快速计算。基于能谱计算分析,优化了EAST中子能谱仪视线。基于GENESIS程序,提炼ICF中对中子能谱有影响的物理过程,建立一维“hot spot”模型,实现了对ICF中子能谱各个成分的模拟计算。模拟结果能与NIF所用LASNEX程序模拟结果很好的吻合。搭建了10路具有n/γ甄别能力的球形双闪烁中子飞行时间谱仪,并成功用于EAST中性束注入放电下,中子能谱的侧量。实验侧量结果能与NUBEAM+GENESIS模拟结果很好的吻合。
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