dc.contributor.author |
Jorns, Benjamin A. |
|
dc.contributor.author |
Hofery, Richard R. |
|
dc.date.accessioned |
2014-03-05T20:55:34Z |
|
dc.date.available |
2014-03-05T20:55:34Z |
|
dc.date.issued |
2013-07-15 |
|
dc.identifier.citation |
49th AIAA/ASME/SAE/ASEE Joint Propulsion Conference & Exhibit, San Jose, California, July 14 - 17, 2013 |
en_US |
dc.identifier.clearanceno |
CL#13-2562 |
|
dc.identifier.uri |
http://hdl.handle.net/2014/44401 |
|
dc.description.abstract |
The oscillations from 0-100 kHz in a 6-kW magnetically shielded thruster are experimen- tally characterized. Changes in plasma parameters that result from the magnetic shielding of Hall thrusters have the potential to significantly alter thruster transients. A detailed investigation of the resulting oscillations is necessary both for the purpose of determin- ing the underlying physical processes governing time-dependent behavior in magnetically shielded thrusters as well as for improving thruster models. In this investigation, a high speed camera and a translating ion saturation probe are employed to examine the spatial extent and nature of oscillations from 0-100 kHz in the H6MS thruster. Two modes are identified at 8 kHz and 75-90 kHz. The low frequency mode is azimuthally uniform across the thruster face while the high frequency oscillation is concentrated close to the thruster centerline with an m = 1 azimuthal dependence. These experimental results are discussed in the context of wave theory as well as published observations from an unshielded variant of the H6MS thruster. |
en_US |
dc.description.sponsorship |
NASA/JPL |
en_US |
dc.language.iso |
en_US |
en_US |
dc.publisher |
Pasadena, CA : Jet Propulsion Laboratory, National Aeronautics and Space Administration, 2013 |
en_US |
dc.subject |
channel erosion |
en_US |
dc.subject |
BPT-4000 |
en_US |
dc.title |
Low frequency plasma oscillations in a 6-kW magnetically shielded Hall thruster |
en_US |
dc.type |
Preprint |
en_US |