Progress of the RF negative hydrogen ion source for fusion at HUST

被引：0

作者：

左晨 ^{[1
]}

陈鹏 ^{[1
]}

李增山 ^{[1
]}

杨景涵 ^{[1
]}

宋菲 ^{[1
]}

陈德智 ^{[1
]}

机构：

[1] State Key Laboratory of Advanced Electromagnetic Engineering and Technology,Huazhong University of Science and Technology

来源：

Plasma Science and Technology | 2022年 / 24卷 / 12期

基金：

国家重点研发计划; 中央高校基本科研业务费专项资金资助; 中国国家自然科学基金;

关键词：

negative ion sources; radio frequency(RF); particle-in-cell(PIC); beam simulation;

D O I：

暂无

中图分类号：

TL62 [聚变工程技术];

学科分类号：

摘要：

Huazhong University of Science and Technology has developed an experimental setup of a radio frequency(RF) driven negative hydrogen ion source,to investigate the physics of production and extraction of the H-ions for neutral beam injection in nuclear fusion reactors.The main design parameters of the ion source are:RF power <40 kW;extraction voltage ≤10kV;accelerator voltage ≤20 kV.This paper gives an overview of the progress of the ion source with particular emphasis on some issues.The RF driver and source plasma are analyzed and optimized in terms of impedance matching,plasma characteristics and power coupling.In regard to the simulation analysis,a plasma model based on the particle-in-cell method and a beam trajectory model considering beam stripping loss are developed to investigate the plasma and negative ions transport inside the ion source.Furthermore,a collisional radiative model of H and H2is built for plasma optical diagnosis.

引用

页码：149 / 156

页数：8

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