Results 41 to 50 of about 9,251 (208)
Two-region model for positive and negative plasma sheaths and its application to Hall thruster metallic anodes. [PDF]
, 2008 An asymptotic presheath/sheath model for positive and negative sheaths in front of a conducting electrode, with a continuous parametric transition at the no-sheath case, is presented.
Ahedo E. +6 more
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Influence of a power supply model on simulated Hall thruster discharge voltage oscillations
AIP Advances, 2019 Hall thrusters are spacecraft propulsion devices that generate and accelerate plasma to provide thrust. Despite the use of constant voltage supplies to power these devices, complex finite-rate and convective effects lead to significant discharge current ...
Lubos Brieda +2 more
doaj +1 more source
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
doaj +1 more source
On the onset of breathing mode in Hall thrusters and the role of electron mobility fluctuations
Frontiers in Physics, 2022 Breathing mode is an ionization instability which is observed ubiquitously in the operation of Hall thrusters. It is recognized as a relatively low frequency (10–30 kHz) longitudinal oscillation of the discharge current and the plasma parameters ...
L. Leporini +7 more
doaj +1 more source
Ion Current Density Study of the NASA-300M and NASA-457Mv2 Hall Thrusters [PDF]
, 2012 NASA Glenn Research Center is developing a Hall thruster in the 15-50 kW range to support future NASA missions. As a part of the process, the performance and plume characteristics of the NASA-300M, a 20-kW Hall thruster, and the NASA-457Mv2, a 50-kW Hall
Herman, Daniel A. +4 more
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Performance Simulation of a 5 kW hall Thruster
Frontiers in Materials, 2021 Hall thruster is a kind of plasma optics device, which is used mainly in space propulsion. To simulate the discharge process of plasma and the performance of a 5 kW hall thruster, a two-dimensional PIC-MCC model in the R-Z plane is built.
L. Yang, P. Y. Wang, T. Wang
doaj +1 more source
, 2013 Near exit plane non-resonant light induced fluorescence spectroscopy is performed in a Hall effect low-power Xenon thruster at discharge voltage of 250V and anode flow rate of 0.7mg/sec.
Baranov V. +5 more
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Diagnostic Setup for Characterization of Near-Anode Processes in Hall Thrusters
, 2003 A diagnostic setup for characterization of near-anode processes in Hall-current plasma thrusters consisting of biased and emissive electrostatic probes, high-precision positioning system and low-noise electronic circuitry was developed and tested ...
Dorf, L., Fisch, N. J., Raitses, Y.
core +3 more sources
Experimental Investigation of the CFHT-27 Cusped-Field Hall Thruster Performance
Journal of Aerospace Technology and Management, 2023 Cusped-field Hall thrusters (CFHT) have significant potential for use in many space missions due to their simplicity, long life and high efficiency. CFHT-27, designed and developed at the Bogazici University Space Technologies Laboratory (BUSTLab), is a
Emin Saridede +2 more
doaj
Performance of a Permanent-Magnet Cylindrical Hall-Effect Thruster [PDF]
, 2009 The performance of a low-power cylindrical Hall thruster, which more readily lends itself to miniaturization and low-power operation than a conventional (annular) Hall thruster, was measured using a planar plasma probe and a thrust stand.
Fisch, N. J. +5 more
core +1 more source