基于多元线性回归模型的中性束质子比分析

中性束质子比的高低对其注入等离子体后的加热效果具有重要的影响。实验中,强流离子源的灯丝电压、弧压、进气量等宏观运行参数决定了中性束质子比的大小。以东方超环中性束注入测试台束引出实验为基础,利用多元线性回归模型对引出中性束质子比进行分析,建立了影响中性束质子比的预测方程,并对该模型的正确性进行了检验。结果表明,中性束质子比可利用以灯丝电压和弧压为自变量的多元线性回归模型进行分析,灯丝电压是影响质子比的关键参数,弧压次之。...

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Bibliographic Details
Published in核技术 Vol. 40; no. 3; pp. 46 - 50
Main Author 王艳 刘智民 焉镜洋 梁立振 胡纯栋
Format Journal Article
LanguageChinese
Published 中国科学院等离子体物理研究所 合肥 230031 2017
中国科学技术大学 合肥 230026%中国科学院等离子体物理研究所 合肥 230031
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ISSN0253-3219
DOI10.11889/j.0253-3219.2017.hjs.40.030502

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Summary:中性束质子比的高低对其注入等离子体后的加热效果具有重要的影响。实验中,强流离子源的灯丝电压、弧压、进气量等宏观运行参数决定了中性束质子比的大小。以东方超环中性束注入测试台束引出实验为基础,利用多元线性回归模型对引出中性束质子比进行分析,建立了影响中性束质子比的预测方程,并对该模型的正确性进行了检验。结果表明,中性束质子比可利用以灯丝电压和弧压为自变量的多元线性回归模型进行分析,灯丝电压是影响质子比的关键参数,弧压次之。
Bibliography:WANG Yan1,2, LIU Zhimin1,2 ,YAN Jingyang1,2 ,LIANG Lizhen1 ,HU Chundong1,2 .1 (Institute of Plasma Physics, Chinese Academy of Sciences, Hefei 230031, China) 2(University of Science and Technology of China, Hefei 230026, China)
31-1342/TL
Background: Neutral beam injection (NBI) has been widely used in thermal nuclear fusion experiments for auxiliary heating. The high proton ratio can improve the efficiency of plasma heating and current drive, so it is essential to know the variations of the neutral beam proton ratio with discharge parameters. In the experiment, the macro operation parameters of high current ion source, such as filament voltage, arc voltage and gas flow rate, determine the level of neutral beam proton ratio. Purpose: This study aims to study the effect of the filament voltage and the arc voltage on the neutral beam proton ratio. Methods: Based on the beam extraction experiments applied on Experimental Advanced Superconducting Tokamak (EAST) NBI test bed, the multiple linear regressive model is
ISSN:0253-3219
DOI:10.11889/j.0253-3219.2017.hjs.40.030502