Effect of Orifice Diameter on the Performance of a Miniature Microwave Neutralizer

被引：1
|
作者：
Dey, Indranuj [1 ,2 ]
Yamamoto, Naoji [2 ]
Nakashima, Hideki [2 ]
机构：
[1] Tata Inst Fundamental Res, Bombay 400005, Maharashtra, India
[2] Kyushu Univ, Dept Adv Energy Engn Sci, Kasuga, Fukuoka 8168580, Japan
来源：
TRANSACTIONS OF THE JAPAN SOCIETY FOR AERONAUTICAL AND SPACE SCIENCES | 2017年 / 60卷 / 04期
关键词：
Electric Propulsion; Microwave; Plasma; Neutralizer; Ion Thruster; ECR;
D O I：
10.2322/tjsass.60.259
中图分类号：
V [航空、航天];
学科分类号：
08 ; 0825 ;
摘要：
A miniature electron cyclotron resonance (ECR) plasma source is operated as a neutralizer, and the effect of orifice diameter on the output is studied. The output is quite promising for accompanying 1-mN-class ion thrusters with an output ion-beam current of 12–15mA. The optimum orifice diameter is independent of neutral mass flow rate, implying that factors other than electron-neutral collisions are dominant. The variation in orifice diameter is expected to alter the microwave field boundary conditions inside discharge chamber (DC), and also influence the dc-electric field existing between the orifice and collector. The convolution of these two factors would be primarily responsible for the optimum orifice diameter.
引用
收藏
页码：259 / 262
页数：4
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