氘中性束注入到EAST内的中子产额分析
He Jishu/Nuclear Techniques（2013）
Abstract
利用典型离子模型和解析方法估算了氘中性束注入到先进超导托卡马克装置(Experimental Advanced Superconducting Tokamak,EAST)等离子体内的中子产额.分析了聚变中子与EAST等离子体内中心离子密度、中心离子温度及注入氘中性束能量、注入功率等参数的关系.计算结果表明,当EAST运行在典型放电参数下,能量为80 keV、功率为4MW的氘中性束注入时,EAST等离子体总聚变中子产额为～1016n·s-1,是热核聚变中子产额1015 n·s-1的10倍.本文的计算结果可为制定中子辐射防护措施和EAST发展新的中子探测技术提供参考.
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Key words
Experimental Advanced Superconducting Tokamak (EAST),Fusion neutron production,Neutral beam injection,Plasma,Radiation protection
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