Design of the Prototype Negative Ion Source for Neutral Beam Injector at ASIPP

In order to support the design, manufacture and commissioning of the negative- ion-based neutral beam injection （NBI） system for the Chinese Fusion Engineering Test Reactor （CFETR）, the Hefei utility negative ion test equipment with RF source （HUNTER） was proposed at ASIPP. A prototype negative ion...

Full description

Saved in:
Bibliographic Details
Published inPlasma science & technology Vol. 18; no. 9; pp. 954 - 959
Main Author 韦江龙 谢亚红 梁立振 顾玉明 邑伟 李军 胡纯栋 谢远来 蒋才超 陶玲 盛鹏 许永建
Format Journal Article
LanguageEnglish
Published 01.09.2016
Subjects
ASIPP
ITER计划
中性束注入器
原型
提取系统
聚变工程
设计
负离子源
Online AccessGet full text

Cover

More Information
Summary:In order to support the design, manufacture and commissioning of the negative- ion-based neutral beam injection （NBI） system for the Chinese Fusion Engineering Test Reactor （CFETR）, the Hefei utility negative ion test equipment with RF source （HUNTER） was proposed at ASIPP. A prototype negative ion source will be developed at first. The main bodies of plasma source and accelerator of the prototype negative ion source are similar to that of the ion source for EAST-NBI. But instead of the filament-arc driver, an RF driver is adopted for the prototype negative ion source to fulfill the requirement of long pulse operation. A cesium seeding system and a magnetic filter are added for enhancing the negative ion density near the plasma grid and minimizing co-extracted electrons. Besides, an ITER-like extraction system is applied inside the accelerator, where the negative ion beam is extracted and accelerated up to 50 kV.
Bibliography:negative ion source, neutral beam injection, CFETR
WEI Jianglong , XIE Yahong , LIANG Lizhen , GU Yuming , YI Wei , LI Jun , HU Chundong , XIE Yuanlai , JIANG Caichao , TAO Ling , SHENG Peng , XU Yongjian （ Institute of Plasma Physics, Chinese Academy of Sciences, Hefei 230031, China）
34-1187/TL
In order to support the design, manufacture and commissioning of the negative- ion-based neutral beam injection （NBI） system for the Chinese Fusion Engineering Test Reactor （CFETR）, the Hefei utility negative ion test equipment with RF source （HUNTER） was proposed at ASIPP. A prototype negative ion source will be developed at first. The main bodies of plasma source and accelerator of the prototype negative ion source are similar to that of the ion source for EAST-NBI. But instead of the filament-arc driver, an RF driver is adopted for the prototype negative ion source to fulfill the requirement of long pulse operation. A cesium seeding system and a magnetic filter are added for enhancing the negative ion density near the plasma grid and minimizing co-extracted electrons. Besides, an ITER-like extraction system is applied inside the accelerator, where the negative ion beam is extracted and accelerated up to 50 kV.
ISSN:1009-0630
DOI:10.1088/1009-0630/18/9/13