| タイトル | Primary Electric Propulsion Technology Study |
| 本文（外部サイト） | http://hdl.handle.net/2060/19800004903 |
| 著者（英） | Poeschel, R. L.; Beattie, J. R. |
| 著者所属（英） | Hughes Research Labs. |
| 発行日 | 1979-11-01 |
| 言語 | eng |
| 内容記述 | An investigation of the 30-cm engineering-model-thruster technology with emphasis placed on the development of models for understanding and predicting the operational characteristics and wear-out mechanisms of the thruster as a function of operating or design parameters is presented. The task studies include: (1) the wear mechanisms and wear rates that determine the useful lifetime of the thruster discharge chamber; (2) cathode lifetime as determined by the depletion of barium from the barium-aluminate-impregnated-porous-tungsten insert that serves as a barium reservoir; (3) accelerator-grid-system technology; (4) a verification of the high-voltage propellant-flow-electrical-isolator design developed under NASA contract NAS3-20395 for operation at 10-kV applied voltage and 10-A equivalent propellant flow with mercury and argon propellants. A model was formulated for predicting performance. |
| NASA分類 | SPACECRAFT PROPULSION AND POWER |
| レポートNO | 80N13158
NASA-CR-159688 |
| 権利 | No Copyright |
