Results 11 to 20 of about 8,678 (302)
Predicting Performance of Hall Effect Ion Source Using Machine Learning
Advanced Intelligent SystemsAccurate performance prediction methods are essential for the development of high‐efficiency Hall effect ion sources, which are employed in industries ranging from material surface treatment to spacecraft electric propulsion (known as Hall thrusters ...
Jaehong Park +8 more
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An in-flight plasma diagnostic package for spacecraft with electric propulsion
EPJ Techniques and Instrumentation, 2021 The plasma diagnostics presented in this article target the plasma surrounding a spacecraft that is created by the electric thruster and its surface modifying effects. The diagnostic package includes a retarding potential analyzer, a plane Langmuir probe,
Thomas Trottenberg +15 more
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Future Directions for Electric Propulsion Research
Aerospace, 2020 The research challenges for electric propulsion technologies are examined in the context of s-curve development cycles. It is shown that the need for research is driven both by the application as well as relative maturity of the technology.
Ethan Dale +2 more
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Monte Carlo modeling of low-energy electron-induced secondary electron emission yields in micro-architected boron nitride surfaces [PDF]
, 2019 Surface erosion and secondary electron emission (SEE) have been identified as the most critical life-limiting factors in channel walls of Hall-effect thrusters for space propulsion.
Alvarado, Andrew +3 more
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Temperature Gradient in Hall Thrusters [PDF]
Applied Physics Letters, 2003 Plasma potentials and electron temperatures were deduced from emissive and cold floating probe measurements in a 2 kW Hall thruster, operated in the discharge voltage range of 200-400 V. An almost linear dependence of the electron temperature on the plasma potential was observed in the acceleration region of the thruster both inside and outside the ...
Staack, D., Raitses, Y., Fisch, N. J.
openaire +3 more sources
Development of an indirect thrust stand based on a cantilever beam
AIP Advances, 2021 There is a large number of missions that have been or will be launched soon that utilize the electric propulsion (EP), which is considered a key technology for applications in present and future space missions.
H. Zhang, D. T. Li, F. He, X. W. Chen
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Experimental Verification of the Magnetic Field Topography inside a small Hall Thruster
Measurement Science Review, 2021 The magnetic circuit of a 500 W class Hall thruster, an electric propulsive device for spacecraft, was characterized experimentally and the results compared with simulation in order to verify the design.
Jakubczak Maciej +2 more
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An analytical review on electric Propulsion system for space satellites [PDF]
INCAS Bulletin, 2020 This paper describes the latest advances in electric propulsion systems prepared for the new space exploration activity. Missions to the Moon and Mars will require these new thrusters to convey the huge amounts of provisions that would be expected to ...
Sourav BASU +3 more
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Hybrid-PIC Modeling of a High-Voltage, High-Specific-Impulse Hall Thruster [PDF]
, 2013 The primary life-limiting mechanism of Hall thrusters is the sputter erosion of the discharge channel walls by high-energy propellant ions. Because of the difficulty involved in characterizing this erosion experimentally, many past efforts have focused ...
Boyd, Iain D. +3 more
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Triple Langmuir Probes Measurements of LaB6 Hollow Cathodes Plume
Frontiers in Physics, 2019 Lanthanum hexaboride hollow cathodes represent a viable option for high power Hall effect thruster applications, under development for the next generation of manned and robotic interplanetary missions.
Giulia Becatti +4 more
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