Upgrade and experimental results of radio frequency ion source for neutral beam injector

被引：17

作者：

Xie, Yahong ^{[1
]}

Hu, Chundong ^{[1
]}

Jiang, Caichao ^{[1
,2
]}

Gu, Yuming ^{[1
]}

Xu, Yongjian ^{[1
]}

Chen, Shiyong ^{[1
]}

Liang, Lizhen ^{[1
]}

Liu, Zhimin ^{[1
]}

Xie, Yuanlai ^{[1
]}

机构：

[1] Chinese Acad Sci, Inst Plasma Phys, Hefei 230031, Peoples R China

[2] Univ Sci & Technol China, Grad Sch, Hefei 230026, Peoples R China

来源：

FUSION ENGINEERING AND DESIGN | 2017年 / 114卷

基金：

中国国家自然科学基金;

关键词：

Neutral beam injector; RF ion source; Plasma generator; Initial plasma;

D O I：

10.1016/j.fusengdes.2016.12.004

中图分类号：

TL [原子能技术]; O571 [原子核物理学];

学科分类号：

0827 ; 082701 ;

摘要：

A radio frequency (RF) ion source was designed and developed for neutral beam injector in Institute of Plasma Physics, Chinese Academy of Sciences (ASIPP). Recently, the RF ion source was upgraded with new RF power generator (50 kW with frequency of 1 MHz), a new matching unit and the faraday shield with water cooling. Two new methods were used for the ion source tests on the test bed. The high pressure was used for the ignition of plasma and change to low pressure of 0.3 Pa to maintain the plasma. The RF plasma can be generated without the start filament successfully. In order to avoid the plasma oscillation with high power, the RF power was set to increase with two stages without change the matching unit. High power of 46 kW with pulse length of 22 s was achieved on the test bed and the plasma duration can be extended too. (C) 2016 Elsevier B.V. All rights reserved.

引用

页码：72 / 75

页数：4

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