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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Bibliographic Details
Published in:Plasma science & technology 2013-05, Vol.15 (5), p.480-484
Main Author: 伍兴权 罗家融 吴斌 王进芳 胡纯栋
Format: Article
Language:English
Subjects:
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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Description
Summary: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