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Status of the next ion engine wear test
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Domonkos, Matthew T. Kamhawi, Hani Soulas, George C. Patterson, Michael J. Gardner, Michael M. |
| Copyright Year | 2003 |
| Description | The status of the NEXT 2000 hour wear test is presented. This test is being conducted with a 40 cm engineering model ion engine, designated EM1, at a beam current higher than listed on the NEXT throttle table. Pretest performance assessments demonstrated that EM1 satisfies all thruster performance requirements. As of 7/3/03, the ion engine has accumulated 406 hours of operation at a thruster input power of 6.9 kW. Overall ion engine performance, which includes thrust, thruster input power, specific impulse, and thrust efficiency, has been steady to date with no indications of performance degradation. Images of the downstream discharge cathode, neutralizer, and accelerator aperture surfaces have exhibited no significant erosion to date. |
| File Size | 886871 |
| Page Count | 21 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_20040000789 |
| Archival Resource Key | ark:/13960/t3nw4dt0q |
| Language | English |
| Publisher Date | 2003-10-01 |
| Access Restriction | Open |
| Subject Keyword | Spacecraft Propulsion And Power Spacecraft Performance Data Acquisition Solar Electric Propulsion Nasa Space Programs Engine Tests Ion Optics Ion Beams Ion Engines Specific Impulse Wear Tests Thrust Cathodes Erosion 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 |
