Results 51 to 60 of about 9,251 (208)
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
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Atmosphere, 2020 Even after half a century of development, many phenomena in Hall Effect Thrusters are still not well-understood. While numerical studies are now widely used to study this highly non-linear system, experimental diagnostics are needed to validate their ...
Victor Désangles +8 more
doaj +1 more source
Throttling Impacts on Hall Thruster Performance, Erosion, and Qualification for NASA Science Missions [PDF]
With the SMART-1, Department of Defense, and commercial industry successes in Hall thruster technologies, NASA has started considering Hall thrusters for science missions. The recent Discovery proposals included a Hall thruster science mission and the In-
Dankanich, John W., DeHoyos, Amado
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, 2013 Electrical space thrusters show important advantages for applications in outer space compared to chemical thrusters, as they allow a longer mission lifetime with lower weight and propellant consumption.
Aanesland, A. +3 more
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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
Thermal stability of the krypton Hall effect thruster
Nukleonika, 2017 The Krypton Large IMpulse Thruster (KLIMT) ESA/PECS project, which has been implemented in the Institute of Plasma Physics and Laser Microfusion (IPPLM) and now is approaching its final phase, was aimed at incremental development of a ~500 W class Hall ...
Szelecka Agnieszka +2 more
doaj +1 more source
High Fidelity Multi-Objective Design Optimization of a Downscaled Cusped Field Thruster
Aerospace, 2017 The Cusped Field Thruster (CFT) concept has demonstrated significantly improved performance over the Hall Effect Thruster and the Gridded Ion Thruster; however, little is understood about the complexities of the interactions and interdependencies of the ...
Thomas Fahey +2 more
doaj +1 more source
Comparisons in Performance of Electromagnet and Permanent-Magnet Cylindrical Hall-Effect Thrusters [PDF]
, 2010 Three different low-power cylindrical Hall thrusters, which more readily lend themselves to miniaturization and low-power operation than a conventional (annular) Hall thruster, are compared to evaluate the propulsive performance of each.
Fisch, N. J. +3 more
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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.
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Hall Thruster Thermal Modeling and Test Data Correlation [PDF]
The life of Hall Effect thrusters are primarily limited by plasma erosion and thermal related failures. NASA Glenn Research Center (GRC) in cooperation with the Jet Propulsion Laboratory (JPL) have recently completed development of a Hall thruster with ...
Clayman, Lauren +3 more
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