Fueling Performance of Supersonic Molecular Beam Injection on the J-TEXT Tokamak

被引：4

作者：

Xiao, Jinshui ^{[1
]}

Yang, Zhoujun ^{[1
]}

Ge, Zhuang ^{[1
]}

Cheng, Zhifeng ^{[1
]}

Feng, Xiande ^{[1
]}

Wang, Zhijiang ^{[1
]}

Liu, Minghai ^{[1
]}

机构：

[1] Huazhong Univ Sci & Technol, State Key Lab Adv Electromagnet Engn & Technol, Wuhan 430074, Peoples R China

来源：

IEEE TRANSACTIONS ON PLASMA SCIENCE | 2013年 / 41卷 / 12期

关键词：

Fueling performance; supersonic molecular beam injection (SMBI) system; tokamak; PLASMA BEHAVIOR;

D O I：

10.1109/TPS.2013.2286205

中图分类号：

O35 [流体力学]; O53 [等离子体物理学];

学科分类号：

070204 ; 080103 ; 080704 ;

摘要：

A supersonic molecular beam injection (SMBI) system was developed on the J-TEXT tokamak. With SMBI fueling, a continuous electron density increase was successfully achieved when multiple-pulse injection was employed. A steeper density profile was observed during the penetration process. A high fueling efficiency, between 20% and 45%, was obtained in limiter/ohmic discharges, suggesting that SMBI is a superior fueling method. SMBI efficiency decreased with increasing background electron density. Analyses of the penetration process with a Ha array and a CCD camera suggest the ionization mainly concentrates in the SOL and plasma edge region.

引用

页码：3675 / 3679

页数：5

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