HL-2A偏压偏滤器物理设计  

Physics design of biased divertor in the HL-2A tokamak

作　　者：唐益武[1] 严建成[1] 严龙文[1] 刘德权[1] 孙平[1] 

机构地区：[1]核工业西南物理研究院,成都610041

出　　处：《核聚变与等离子体物理》2004年第2期117-122,共6页Nuclear Fusion and Plasma Physics

基　　金：国家自然科学基金资助项目(19889502)

摘　　要：根据已有的理论模型,推算出了HL 2A偏压偏滤器的理论电流为1.5kA、偏压电压为200V,并对HL 2A偏压偏滤器做出了初步设计。HL 2A装置采用偏压后,有可能降低L H模转变阈功率,增加偏滤器等离子体密度、压强和滞留时间,改善约束,改善内外靶板功率沉积的非对称性,提高排灰效率及提高偏滤器性能。The current and voltage of a biased divertor for the HL-2A tokamak have been predicated according to the present theoretical model.They are about 1.5kA and 200V respectively.Initial engineering design of the biased divertor is also presented.Divertor biased voltage in the HL-2A tokamak may decrease the threshold power of L-H transition,increase the density,pressure and retention time of divertor plasma.It can improve plasma confinement and the asymmetry of deposition power between inboard target and outboard one,increase the pumping efficiency of fusion products and optimize the divertor performance.

关 键 词：HL-2A偏压偏滤器 聚变反应堆 滞留时间 等离子体密度 偏压结构 

分 类 号：TL626[核科学技术—核技术及应用] TL631.24