Empirical Scaling Laws of Neutral Beam Injection Power in HL-2A Tokamak

We present an experimental method to obtain neutral beam injection （NBI） power scaling laws with operating parameters of the NBI system on HL-2A, including the beam divergence angle, the beam power transmission efficiency, the neutralization efficiency and so on. With the empirical scaling laws, the...

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Published inChinese physics letters Vol. 32; no. 5; pp. 43 - 46
Main Author 曹建勇 魏会领 刘鹤 杨宪福 邹桂清 于利明 李青 罗翠文 潘宇东 姜韶风 雷光玖 李波 饶军 段旭如
Format Journal Article
LanguageEnglish
Published Chinese Physical Society and IOP Publishing 01.05.2015
Subjects
Confinement
Evolution
HL-2A
Neutral beams
Power transmission
Scaling laws
Shot
Simulation
Tokamak devices
中性束注入
光束发散角
托卡马克实验
标度律
电源
等离子体参数
能量约束时间
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Summary:We present an experimental method to obtain neutral beam injection （NBI） power scaling laws with operating parameters of the NBI system on HL-2A, including the beam divergence angle, the beam power transmission efficiency, the neutralization efficiency and so on. With the empirical scaling laws, the estimating power can be obtained in every shot of experiment on time, therefore the important parameters such as the energy confinement time can be obtained precisely. The simulation results by the tokamak simulation code （TSC） show that the evolution of the plasma parameters is in good agreement with the experimental results by using the NBI power from the empirical scaling law.
Bibliography:11-1959/O4
CAO Jian-Yong, WEI Hui-Ling, LIU He, YANG Xian-Fu,ZOU Gui-Qing,YU Li-Ming, LI Qing,LUO Cui-Wen, PAN Yu-Dong, JIANG Shao-Feng, LEI Guang-Jiu, LI Bo, RAO Jun, DUAN Xu-Ru（ Southwestern Institute of Physics, Chengdu 610041）
We present an experimental method to obtain neutral beam injection （NBI） power scaling laws with operating parameters of the NBI system on HL-2A, including the beam divergence angle, the beam power transmission efficiency, the neutralization efficiency and so on. With the empirical scaling laws, the estimating power can be obtained in every shot of experiment on time, therefore the important parameters such as the energy confinement time can be obtained precisely. The simulation results by the tokamak simulation code （TSC） show that the evolution of the plasma parameters is in good agreement with the experimental results by using the NBI power from the empirical scaling law.
ObjectType-Article-1
SourceType-Scholarly Journals-1
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content type line 23
ISSN:0256-307X
1741-3540
DOI:10.1088/0256-307x/32/5/052902