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

作     者：WEI Jianglong XIE Yahong LIANG Lizhen GU Yuming YI Wei LI Jun HU Chundong XIE Yuanlai JIANG Caichao TAO Ling SHENG Peng XU Yongjian 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

作者机构：Institute of Plasma Physics Chinese Academy of Sciences Hefei 230031 China 

出 版 物：《Plasma Science and Technology》 (等离子体科学和技术（英文版）)

年 卷 期：2016年第18卷第9期

页      面：954-959页

核心收录：

学科分类：08[工学] 09[农学] 082701[工学-核能科学与工程] 0827[工学-核科学与技术] 0901[农学-作物学] 0836[工学-生物工程] 090102[农学-作物遗传育种] 

基　　金：supported by National Natural Science Foundation of China(Nos.11505224,11575240,11405207) the National Magnetic Confinement Fusion Science Program of China(Nos.2013GB101001,2013GB101002,2013GB101003) International Science and Technology Cooperation Program of China(No.2014DFG61950) Foundation of ASIPP(No.DSJJ-14-JC07) 

主　　题：negative ion source neutral beam injection CFETR 

摘      要：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.