实验先进超导托卡马克中性束注入器兆瓦级强流离子源在试验台上的首次等离子体。

First plasma of megawatt high current ion source for neutral beam injector of the experimental advanced superconducting tokamak on the test bed.

作者信息

Hu Chundong, Xie Yahong, Liu Sheng, Xie Yuanlai, Jiang Caichao, Song Shihua, Li Jun, Liu Zhimin

机构信息

Institute of Plasma Physics, Chinese Academy of Sciences, Hefei, China.

出版信息

Rev Sci Instrum. 2011 Feb;82(2):023303. doi: 10.1063/1.3545843.

DOI:10.1063/1.3545843

PMID:21361587

Abstract

High current ion source is the key part of the neutral beam injector. In order to develop the project of 4 MW neutral beam injection for the experimental advanced superconducting tokamak (EAST) on schedule, the megawatt high current ion source is prestudied in the Institute of Plasma Physics in China. In this paper, the megawatt high current ion source test bed and the first plasma are presented. The high current discharge of 900 A at 2 s and long pulse discharge of 5 s at 680 A are achieved. The arc discharge characteristic of high current ion source is analyzed primarily.

摘要

强流离子源是中性束注入器的关键部件。为了按时推进实验先进超导托卡马克（EAST）4兆瓦中性束注入项目，中国等离子体物理研究所对兆瓦级强流离子源进行了预研。本文介绍了兆瓦级强流离子源试验平台及首次等离子体放电情况。实现了2秒900安的强流放电以及680安5秒的长脉冲放电。并初步分析了强流离子源的弧光放电特性。