基于多元线性回归模型的中性束质子比分析

王艳; 刘智民; 焉镜洋; 梁立振; 胡纯栋

doi:10.11889/j.0253-3219.2017.hjs.40.030502

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基于多元线性回归模型的中性束质子比分析

核物理、交叉学科研究 | 更新时间：2021-05-19

- 基于多元线性回归模型的中性束质子比分析
- Analysis of neutral beam proton ratio based on multiple linear regressive model
- 核技术 2017年40卷第3期文章编号：030502
- 作者机构：
  
  1.中国科学院等离子体物理研究所合肥 230031
  2.中国科学技术大学合肥 230026
- 作者简介：
  
  [ "王艳, 女, 1989年出生, 2015年毕业于中国科学院大学, 现为博士研究生, 主要从事光谱诊断研究", "WANG Yan, female, born in1989, graduated from University of Chinese Academy of Sciences in 2015, doctoral student, focusing on spectroscopy diagnostic study" ]
  梁立振, E-mail:lzliang@ipp.ac.cn LIANG Lizhen, E-mail:lzliang@ipp.ac.cn
- 基金信息：
  
  国家磁约束核聚变能发展研究专项(2013GB101000);国家自然科学基金(1157240);国家自然科学基金(1150224);等离子体物理研究所基金(DSJJ-14-JC07)
- DOI：10.11889/j.0253-3219.2017.hjs.40.030502
  中图分类号： TL6;O532.26
- 收稿日期：2016-11-24，
  
  修回日期：2017-01-09，
  
  纸质出版日期：2017-03-10
- 稿件说明：
移动端阅览
王艳, 刘智民, 焉镜洋, 等. 基于多元线性回归模型的中性束质子比分析[J]. 核技术, 2017,40(3):030502

Yan WANG, Zhimin LIU, Jingyang YAN, et al. Analysis of neutral beam proton ratio based on multiple linear regressive model[J]. Nuclear techniques, 2017, 40(3): 030502
王艳, 刘智民, 焉镜洋, 等. 基于多元线性回归模型的中性束质子比分析[J]. 核技术, 2017,40(3):030502 DOI： 10.11889/j.0253-3219.2017.hjs.40.030502.

Yan WANG, Zhimin LIU, Jingyang YAN, et al. Analysis of neutral beam proton ratio based on multiple linear regressive model[J]. Nuclear techniques, 2017, 40(3): 030502 DOI： 10.11889/j.0253-3219.2017.hjs.40.030502.

摘要

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。

Abstract

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 used to analyze extraction neutral beam proton ratio.

Results

The filament voltage and the arc voltage are positively correlated with the neutral beam proton ratio

and to establish the prediction equation which can give the value and the trends of the neutral beam proton ratio and the correctness of the model is proved.

Conclusion

The neutral beam proton ratio can be analyzed by the multiple linear regressive model with the dependent variables of filament voltage and arc voltage. Between the two parameters

the filament voltage plays a major role in influencing proton ratio

and arc voltage is less important.

关键词

Keywords

references

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