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Effects of neutral gas releases on electron beam injection from electrically tethered spacecraft
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Winglee, R. M. |
| Copyright Year | 1990 |
| Description | The presence of high neutral densities at low altitudes and/or during thruster firings is known to modify the spacecraft potential during active electron beam injection. Two-dimensional (three velocity) particle simulations are used to investigate the ionization processes including the neutral density required, the modification of the spacecraft potential, beam profile and spatial distribution of the return current into the spacecraft. Three processes are identified: (1) beam-induced ionization, (2) vehicle-induced ionization, and (3) beam plasma discharge. Only in the first two cases does the beam propagate away with little distortion. |
| File Size | 561503 |
| Page Count | 12 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_19910008418 |
| Archival Resource Key | ark:/13960/t2s51k488 |
| Language | English |
| Publisher Date | 1990-12-01 |
| Access Restriction | Open |
| Subject Keyword | Plasma Physics Beam Injection Neutral Gases Plasma Jets Electron Beams Spatial Distribution Low Altitude Spacecraft Charging Ionization Two Dimensional Models Space Charge Distortion Tethering Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Article |
