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《Nuclear Fusion and Plasma Physics》 2009-01
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Fast ion bootstrap current produced by neutral beam injection in tokamaks

HUANG Qian-hong,GONG Xue-yu,XIE An-ping,LIU Bai-qing(School of Mathematics and Physics,University of South China,Hengyang 421001)  
To investigate the bootstrap current due to fast ions produced by neutral beam injection into tokamak,a drift kinetic equation is established and solved by doubly expanding the fast ion distribution function in two small parameters δ = ρp/a(ρ pis poloidal Larmor radius,a is the minor radius) and δ * = τ B/τs(τB is bounce period of trapped fast-ion,τ s is the slowing down time),then the expression for bootstrap current is derived,and the bootstrap current density and total bootstrap current are obtained numerically in a large aspect ratio tokamak with circular cross section.The results show that the bootstrap current depends strongly on both injection angle and the ratio of v b/vc(v b is birth velocity and v b2∝ E(beam energy),v c is critical velocity),the ratio of the bootstrap current to the total current is about 10% in the perpendicular injection and is small in the parallel injection,the bootstrap current rapidly increases when the injection-angle reaches perpendicular and the beam energy increases.
【Fund】: 国家自然科学基金资助项目(10775066)
【CateGory Index】: TL631.24
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【Citations】
Chinese Journal Full-text Database 1 Hits
1 GONG Xue-yu,XIE An-ping,PENG Xiao-wei, LIU Wen-yan(School of Eleetronics Nanhua University,Hengyang,Hunan 421001,China);Bootstrap Current under Different Operational Regimes in Tokamak Plasma[J];南华大学学报(自然科学版);2005-01
【Co-citations】
Chinese Journal Full-text Database 3 Hits
1 HUANG Qian-hong;GONG Xue-yu;CAO Jin-jia;YANG Lei;School of Nuclear Science and Technology,University of South China;;The Effect of Plasma Parameter on the Bootstrap Current of Fast Ions in Neutral Beam Injection[J];核科学与工程;2014-03
2 HUANG Qian-hong,GONG Xue-yu,XIE An-ping,LIU Bai-qing(School of Mathematics and Physics,University of South China,Hengyang 421001);Fast ion bootstrap current produced by neutral beam injection in tokamaks[J];核聚变与等离子体物理;2009-01
3 HUANG Qian-hong,XIE An-ping,LIU Bai-qing,LIU Yan,GONG Xue-yu(School of Nuclear Science and Technology,University of South China,Hengyang,Hunan 421001,China);Bootstrap current induced by fusion born alpha particles[J];南华大学学报(自然科学版);2008-02
【Secondary Citations】
Chinese Journal Full-text Database 3 Hits
1 Gong Xue Yu 1) Shi Bing Ren 2) Long Yong Xing 2) 1) (Department of Technological Physics,Nanhua University,Hengyang 421001,China) 2) (Southwestern Institute of Physics,Chengdu 610041,China);D-T plasma of self-sustained burning under high performance[J];物理学报;2003-04
2 Gong Xue Yu 1) \ Shi Bing Ren 2) \ Zhang Jin Hua 2) \ Qiu Xiao Ping 1) \ Ling Qiu 1) 1) (Department of Technological Physics, Nanhua University, Hengyang\ 421001,China) 2) (Southwestern Institute of Physics, C;The alignment of bootstrap current in tokamak[J];物理学报;2002-11
3 GONG XUE\|YU LIN QIU (Central\|South Institute of Technology,Hengyang\ 421001) SHI BING\|REN\ LONG YONG\|XING (Southwestern Institute of Physics,Chengdu\ 610041) (Received 18 January 1999; revised manuscript received 6 April 1999);PLASMA TEMPERATURE PROFILE OF D\|T BURNING FOR THE BOHM TYPE[J];物理学报;1999-12
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