Calculation of Shinethrough and its Power Density Distribution for EAST NBI

The NBI （Neutral Beam Inject） system of EAST has two deuterium beam lines, in which beam power is 4 MW and energy is 80 keV. To study the neutral beam shinethrough power loss, the physics processes of neutral beam attenuation in plasma are described and simulated by the code ONETWO/NUBEAM. The simul...

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Veröffentlicht in:	Plasma science & technology 2013-05, Vol.15 (5), p.480-484
1. Verfasser:	伍兴权罗家融吴斌王进芳胡纯栋
Format:	Artikel
Sprache:	eng
Schlagworte:	Attenuation Beams (radiation) Curve fitting Density distribution Deuterium EAST Mathematical analysis Neutral beams Plasma (physics) Simulation 中性束注入系统功率密度分布功率损耗模拟输入等离子体参数计算过程描述
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Zusammenfassung:	The NBI （Neutral Beam Inject） system of EAST has two deuterium beam lines, in which beam power is 4 MW and energy is 80 keV. To study the neutral beam shinethrough power loss, the physics processes of neutral beam attenuation in plasma are described and simulated by the code ONETWO/NUBEAM. The simulated input plasma parameter forms are tested through curve fitting of measured shinethrough in DIII-D. The power density distribution of shinethrough is obtained by analytical governing expression. The surface temperature rise testing for a copper target is also discussed.
ISSN:	1009-0630
DOI:	10.1088/1009-0630/15/5/17