Ion accelerator systems for high-power 30-cm thruster operation
نویسندگان
چکیده
منابع مشابه
Discharge Plasma Parameters of a 30-cm Ion Thruster Measured without Beam Extraction using a High-Speed Probe Positioning System
* Presented as Paper IEPC-03-0069 at the 28 International Electric Propulsion Conference, Toulouse, France, March 17 – 21, 2003. Published by the Electric Rocket Propulsion Society with permission. † Graduate Student, Aerospace Engineering, [email protected]. ‡ Graduate Student, Aerospace Engineering. § Associate Professor and Laboratory Director. A method for delivering a symmetric double ...
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Relative erosion rates of the discharge cathode assembly of a 30-cm ion engine are measured using laser-induced fluorescence. Molybdenum and tungsten erosion products are interrogated downstream of the discharge cathode assembly during beam extraction. Erosion of the discharge cathode assembly is characterized for both keepered and unkeepered configurations. The erosion increases with both disc...
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The Coaxial High ENerGy (CHENG) Thruster is a high power coaxial pulsed plasma accelerator that was first proposed in 1970 by D.Y. Cheng. Reported exhaust velocities on the order of 10m/s, thrust densities on the order of 10N/m and low erosion rates make this thruster attractive for a variety of space missions. However, little work has been published since 1970 and the acceleration mechanism is...
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The light ion Engineering Test Facility (ETF) driver concept, based on Hermes III and RHEPP 2 technologies, is a scaled-down version of the LMF design incorporating repetition rate capabilities of up to 10Hz. The preconceptual design presented here provides 250-TW peak power to the ETF target during 8 ns, equal to 2-MJ total ion beam energy. Linear inductive voltage addition driving a self-magn...
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Busek Co. Inc. completed delivery of flight-qualified colloid thrusters for NASA’s ST7 mission in May 2008. This effort has led to development of variants of the technology suitable for small satellite applications. Colloid thrusters operate by electrostatically accelerating charged droplets of an electrically conductive ionic liquid, and are capable of providing a high degree of throttling and...
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ژورنال
عنوان ژورنال: Journal of Spacecraft and Rockets
سال: 1985
ISSN: 0022-4650,1533-6794
DOI: 10.2514/3.25715