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Status of 30-centimeter-diameter mercury ion thruster isolator development
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Mantenieks, M. A. |
| Copyright Year | 1976 |
| Description | Results are presented of several 30 cm diameter mercury ion thruster isolator life tests that show that the onset and exponential increase of leakage current problems observed in earlier thruster operations and isolator tests have been solved. A 10,006 hour life test of a main isolator vaporizer operated with no mercury flow at 320 C and 1500 volts was found to have no onset of leakage current during the test. A cathode-isolator vaporizer operated with a mercury discharge at 340 to 360 C and 1200 volts for 18,000 hours, was found to have a small increase of leakage current with time. A 10,000 hour thruster life test exhibited no increase of leakage current during the life test. Isolators have been developed which will satisfy 30 cm mercury ion thruster mission requirements. |
| File Size | 2238531 |
| Page Count | 13 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_19770003211 |
| Archival Resource Key | ark:/13960/t41s1kp3z |
| Language | English |
| Publisher Date | 1976-01-01 |
| Access Restriction | Open |
| Subject Keyword | Spacecraft Propulsion And Power Leakage Volt-ampere Characteristics Isolators Life Durability Vaporizers Ion Propulsion Rocket Engines Mercury Metal Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Article |
