Minihelicon Plasma Thruster

被引：115

作者：

Batishchev, Oleg V. ^{[1
]}

机构：

[1] MIT, Dept Aeronaut & Astronaut, Cambridge, MA 02139 USA

来源：

IEEE TRANSACTIONS ON PLASMA SCIENCE | 2009年 / 37卷 / 08期

关键词：

Gas discharges; optical spectroscopy; plasma engines; plasma measurements; HELICONS;

D O I：

10.1109/TPS.2009.2023990

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 compact high-power-density helicon plasma source operating on abundant medium atomic weight gases is under examination for a potential electric propulsion application. A high specific impulse, which is easily varied in the range of similar to 1-2 ks for Ar and similar to 2-4 ks for N-2 propellant, was achieved. A well-collimated plasma plume with emittance similar to 10 degrees. is produced in a single-magnet configuration. Analysis of the data obtained using in situ and noninvasive spectral diagnostics indicates almost complete gaseous propellant ionization and thrust efficiency eta T similar to 20% with the lowest net ionization cost of similar to(80 V)(-1) per ion. Direct weighing has yielded a thrusting force of T similar to 10 mN.

引用

页码：1563 / 1571

页数：9

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