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Transport of sputtered carbon during ground-based life testing of ion thrusters
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Karniotis, Christina A. Clemons, Lucas A. Marker, Colin L. Snyder, Aaron Waters, Deborah L. Miller, Sharon Banks, Bruce A. Hung, Ching-Cheh |
| Copyright Year | 2005 |
| Description | High voltage, high power electron bombardment ion thrusters needed for deep space missions will be required to be operated for long durations in space as well as during ground laboratory life testing. Carbon based ion optics are being considered for such thrusters. The sputter deposition of carbon and arc vaporized carbon flakes from long duration operation of ion thrusters can result in deposition on insulating surfaces, causing them to become conducting. Because the sticking coefficient is less than one, secondary deposition needs to be considered to assure that shorting of critical components does not occur. The sticking coefficient for sputtered carbon and arc vaporized carbon is measured as well as directional ejection distribution data for carbon that does not stick upon first impact. |
| File Size | 1149678 |
| Page Count | 15 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_20050186905 |
| Archival Resource Key | ark:/13960/t1bk6bc87 |
| Language | English |
| Publisher Date | 2005-06-01 |
| Access Restriction | Open |
| Subject Keyword | Spacecraft Propulsion And Power Ground Tests Vaporizing Space Missions Ion Engines High Voltages Electron Bombardment Sputtering Ion Optics Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Technical Report |
