Results 11 to 20 of about 1,081 (308)
Cathode effects in cylindrical Hall thrusters [PDF]
Journal of Applied Physics, 2008 Stable operation of a cylindrical Hall thruster has been achieved using a hot wire cathode, which functions as a controllable electron emission source. It is shown that as the electron emission from the cathode increases with wire heating, the discharge current increases, the plasma plume angle reduces, and the ion energy distribution function shifts ...
E. M. Granstedt, Y. Raitses, N. J. Fisch
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EPJ Techniques and Instrumentation, 2022 The lifetime of electric propulsion (EP) thrusters depends particularly on the erosion characteristics of operation relevant components, for instance, the grid hole erosion of gridded ion thrusters or the channel wall erosion of Hall effect thrusters ...
Carsten Bundesmann +8 more
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Thermomagnetic Convective Cooling of Hall Effect Thruster
, 2021 This work proposes and shows that thermomagnetic convection could be used in zero gravity to cool components of a Hall-effect thruster. A ferrofluid cavity was develop in the thermal and geometric model of a Hall-effect thruster.
Vanheusden, Elizabeth M.
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Plume Divergence and Discharge Oscillations of an Accessible Low-Power Hall Effect Thruster
Applied Sciences, 2021 Hall effect thrusters (HETs) are an increasingly utilized proportion of electric propulsion devices due to their high thrust-to-power ratio. To enable an accessible research thruster, our team used inexpensive materials and simplified structures to ...
Matthew Baird +3 more
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Applied Sciences, 2021 A Faraday cup (FC) is an instrument dedicated to current measurement in beams, jets and plasmas. It consists of a set of polarized electrodes mounted in such a way plasma sheath effect can be neglected, yielding accurate and reliable results.
Hugonnaud Valentin, Mazouffre Stéphane
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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.
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Mode Transitions in Hall Effect Thrusters [PDF]
49th AIAA/ASME/SAE/ASEE Joint Propulsion Conference, 2013 Mode transitions have been commonly observed in Hall Effect Thruster (HET) operation where a small change in a thruster operating parameter such as discharge voltage, magnetic field or mass flow rate causes the thruster discharge current mean value and oscillation amplitude to increase significantly.
Sekerak, Michael J. +5 more
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Fluid simulation on effect of background magnetic field on plasma characteristics in a Hall thruster
AIP Advances, 2022 Herein, the effect of the background magnetic field on plasma characteristics in a Hall thruster is numerically investigated using DUT-HTFS [Li et al., AIP Adv. 12, 015117 (2022)], an integrated fluid simulation platform on Hall thruster plasmas.
Nannan Li +3 more
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Investigating the neutralizer cathode location in the SPT type Hall Effect thruster [PDF]
علوم، فناوری و کاربردهای فضاییThe position of the cathode concerning the magnetic field map inside the discharge channel affects the performance and lifetime of the Hall effect thruster. The neutralizer cathode has two important functions in the Hall effect thruster.
mohammadmehdi shafie +4 more
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3D Simulation of a Hall-effect thruster near plume with a side cathode
, 2021 Raw simulation data of the near plume of an SPT-100 Hall Effect thruster, obtained using the 3D code "EP2PLUS". This makes use of a hybrid particle-in-cell/fluid (PIC/fluid) formulation, and is here used to assess the 3D effects of the neutralizer ...
Cichocki, Filippo
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