Abstract
Decay waves have been observed in the megahertz range in the helium plasma generated by the variable specific impulse magnetoplasma rocket magnetoplasma thruster. They are measured using one of the tips of a triple probe connected to a 50 {omega} input of a spectrum analyzer via a dc block (a small capacitor). The maximum amplitude of all waves is in the center of the plasma and does not appear correlated to the radial electron density or temperature profiles. The waves seem to be generated close to the helicon antenna that was 91 cm 'upstream' from the measuring Langmuir probe. A possible explanation is parametric decay of the large amplitude helicon wave that also generates the plasma.
Boswell, R W;
Sutherland, O;
Charles, C;
Squire, J P;
Chang Diaz, F R;
Glover, T W;
Jacobson, V T;
Chavers, D G;
Bengtson, R D;
Bering, III, E A;
Goulding, R H;
Light, M;
[1]
Advanced Space Propulsion Laboratory, NASA Johnson Space Center, Houston, Texas 77058 (United States);
Marshall Space Flight Center, Huntsville, Alabama (United States);
University of Texas at Austin, Austin, Texas (United States);
University of Houston, Houston, Texas (United States);
Oak Ridge National Laboratory, Oak Ridge, Tennessee (United States);
Los Alamos National Laboratory, Los Alamos, New Mexico (United States)]
- Space Plasma and Plasma Processing group, PRL/RSPhysSE, Australian National University, Canberra, ACT 0200 (Australia)
Citation Formats
Boswell, R W, Sutherland, O, Charles, C, Squire, J P, Chang Diaz, F R, Glover, T W, Jacobson, V T, Chavers, D G, Bengtson, R D, Bering, III, E A, Goulding, R H, Light, M, Advanced Space Propulsion Laboratory, NASA Johnson Space Center, Houston, Texas 77058 (United States), Marshall Space Flight Center, Huntsville, Alabama (United States), University of Texas at Austin, Austin, Texas (United States), University of Houston, Houston, Texas (United States), Oak Ridge National Laboratory, Oak Ridge, Tennessee (United States), and Los Alamos National Laboratory, Los Alamos, New Mexico (United States)].
Experimental evidence of parametric decay processes in the variable specific impulse magnetoplasma rocket (VASIMR) helicon plasma source.
United States: N. p.,
2004.
Web.
doi:10.1063/1.1803579.
Boswell, R W, Sutherland, O, Charles, C, Squire, J P, Chang Diaz, F R, Glover, T W, Jacobson, V T, Chavers, D G, Bengtson, R D, Bering, III, E A, Goulding, R H, Light, M, Advanced Space Propulsion Laboratory, NASA Johnson Space Center, Houston, Texas 77058 (United States), Marshall Space Flight Center, Huntsville, Alabama (United States), University of Texas at Austin, Austin, Texas (United States), University of Houston, Houston, Texas (United States), Oak Ridge National Laboratory, Oak Ridge, Tennessee (United States), & Los Alamos National Laboratory, Los Alamos, New Mexico (United States)].
Experimental evidence of parametric decay processes in the variable specific impulse magnetoplasma rocket (VASIMR) helicon plasma source.
United States.
https://doi.org/10.1063/1.1803579
Boswell, R W, Sutherland, O, Charles, C, Squire, J P, Chang Diaz, F R, Glover, T W, Jacobson, V T, Chavers, D G, Bengtson, R D, Bering, III, E A, Goulding, R H, Light, M, Advanced Space Propulsion Laboratory, NASA Johnson Space Center, Houston, Texas 77058 (United States), Marshall Space Flight Center, Huntsville, Alabama (United States), University of Texas at Austin, Austin, Texas (United States), University of Houston, Houston, Texas (United States), Oak Ridge National Laboratory, Oak Ridge, Tennessee (United States), and Los Alamos National Laboratory, Los Alamos, New Mexico (United States)].
2004.
"Experimental evidence of parametric decay processes in the variable specific impulse magnetoplasma rocket (VASIMR) helicon plasma source."
United States.
https://doi.org/10.1063/1.1803579.
@misc{etde_20619186,
title = {Experimental evidence of parametric decay processes in the variable specific impulse magnetoplasma rocket (VASIMR) helicon plasma source}
author = {Boswell, R W, Sutherland, O, Charles, C, Squire, J P, Chang Diaz, F R, Glover, T W, Jacobson, V T, Chavers, D G, Bengtson, R D, Bering, III, E A, Goulding, R H, Light, M, Advanced Space Propulsion Laboratory, NASA Johnson Space Center, Houston, Texas 77058 (United States), Marshall Space Flight Center, Huntsville, Alabama (United States), University of Texas at Austin, Austin, Texas (United States), University of Houston, Houston, Texas (United States), Oak Ridge National Laboratory, Oak Ridge, Tennessee (United States), and Los Alamos National Laboratory, Los Alamos, New Mexico (United States)]}
abstractNote = {Decay waves have been observed in the megahertz range in the helium plasma generated by the variable specific impulse magnetoplasma rocket magnetoplasma thruster. They are measured using one of the tips of a triple probe connected to a 50 {omega} input of a spectrum analyzer via a dc block (a small capacitor). The maximum amplitude of all waves is in the center of the plasma and does not appear correlated to the radial electron density or temperature profiles. The waves seem to be generated close to the helicon antenna that was 91 cm 'upstream' from the measuring Langmuir probe. A possible explanation is parametric decay of the large amplitude helicon wave that also generates the plasma.}
doi = {10.1063/1.1803579}
journal = []
issue = {11}
volume = {11}
journal type = {AC}
place = {United States}
year = {2004}
month = {Nov}
}
title = {Experimental evidence of parametric decay processes in the variable specific impulse magnetoplasma rocket (VASIMR) helicon plasma source}
author = {Boswell, R W, Sutherland, O, Charles, C, Squire, J P, Chang Diaz, F R, Glover, T W, Jacobson, V T, Chavers, D G, Bengtson, R D, Bering, III, E A, Goulding, R H, Light, M, Advanced Space Propulsion Laboratory, NASA Johnson Space Center, Houston, Texas 77058 (United States), Marshall Space Flight Center, Huntsville, Alabama (United States), University of Texas at Austin, Austin, Texas (United States), University of Houston, Houston, Texas (United States), Oak Ridge National Laboratory, Oak Ridge, Tennessee (United States), and Los Alamos National Laboratory, Los Alamos, New Mexico (United States)]}
abstractNote = {Decay waves have been observed in the megahertz range in the helium plasma generated by the variable specific impulse magnetoplasma rocket magnetoplasma thruster. They are measured using one of the tips of a triple probe connected to a 50 {omega} input of a spectrum analyzer via a dc block (a small capacitor). The maximum amplitude of all waves is in the center of the plasma and does not appear correlated to the radial electron density or temperature profiles. The waves seem to be generated close to the helicon antenna that was 91 cm 'upstream' from the measuring Langmuir probe. A possible explanation is parametric decay of the large amplitude helicon wave that also generates the plasma.}
doi = {10.1063/1.1803579}
journal = []
issue = {11}
volume = {11}
journal type = {AC}
place = {United States}
year = {2004}
month = {Nov}
}