Results 31 to 40 of about 6,632 (182)
E3S Web of Conferences, 2017 In order to maximize system mass and cost savings, a Hall Effect Thruster Direct Drive Approach shall ideally get away with the need to provide galvanic isolation for the Anode voltage.
Ghislanzoni Luca +4 more
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
core +1 more source
The Influence of the Magnetic Field Line Curvature on Wall Erosion near the Hall Thruster Exit Plane
Applied Sciences, 2023 One of the main factors that limit the lifetime of the Hall effect Thrusters (HETs) is the erosion of the acceleration channel caused by the flux of energetic ions.
Lulu Quan, Yong Cao, Bin Tian, Keyu Gong
doaj +1 more source
On the magnetic mirror effect in Hall thrusters [PDF]
Applied Physics Letters, 2005 The magnetic mirror effect is studied in the channel of a Hall thruster. It is shown that gradients in magnetic field affect the presheath structure and electric potential distribution. The length of the radial presheath region decreases in the presence of a magnetic field gradient.
Keidar, Michael, Boyd, Iain D.
openaire +2 more sources
AerospaceA collaborative inter-laboratory study was conducted to characterise the performance of the novel 250 W External Discharge Plasma Thruster (XPT) with a channel-less Hall effect-type thruster designed to address lifetime limitations and lower-power ...
Thomas F. Munro-O’Brien +3 more
doaj +1 more source
Numerical Study of Hall Thruster Plume and Sputtering Erosion
Journal of Applied Mathematics, 2012 Potential sputtering erosion caused by the interactions between spacecraft and plasma plume of Hall thrusters is a concern for electric propulsion. In this study, calculation model of Hall thruster’s plume and sputtering erosion is presented.
Li Yan +3 more
doaj +1 more source
Self consistent kinetic simulations of SPT and HEMP thrusters including the near-field plume region
, 2009 The Particle-in-Cell (PIC) method was used to study two different ion thruster concepts - Stationary Plasma Thrusters (SPT) and High Efficiency Multistage Plasma Thrusters (HEMP-T), in particular the plasma properties in the discharge chamber due to the ...
Kalentev, O. +6 more
core +1 more source
Boltzmann expansion in a radiofrequency conical helicon thruster operating in xenon and argon [PDF]
, 2015 A low pressure (~ 0.5 mTorr in xenon and ~ 1 mTorr in argon) Boltzmann expansion is experimentally observed on axis within a magnetized (60 to 180 G) radiofrequency (13.56 MHz) conical helicon thruster for input powers up to 900 W using plasma ...
Boswell, R., Charles, C., Takahashi, K.
core +1 more source
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
core +2 more sources
Robust Model Predictive Control for Satellite Orbit Maintenance Using Hall Effect Thrusters [PDF]
فناوری در مهندسی هوافضاIn this article, a robust model predictive controller is designed for maintaining the satellite's low earth orbit in the presence of perturbations and uncertainties.
Masumeh kiantaj +2 more
doaj +1 more source