タイトル | 8-cm Engineering Model Thruster technology - A review of recent developments |
著者(英) | Williams, R. L.; Dulgeroff, C. R.; Williamson, W. S.; Bayless, J. R. |
著者所属(英) | Hughes Research Labs. |
発行日 | 1979-10-01 |
言語 | eng |
内容記述 | Recent testing of the NASA Lewis Research Center/Hughes 8-cm Engineering Model Thruster (EMT) and Power Processing Unit has centered on two primary areas of investigation: integration of porous-tungsten dispenser-type cathode inserts into the thruster (replacing previous inserts of rolled-tantalum-foil design) and characterization of thruster operation with the new inserts. Characterization testing of the EMT and of the new cathodes has demonstrated acceptable thruster performance and cathode ignition parameters; the only perceived change in thuster performance has been that a small amount of cathode heater power is required to maintain nominal keeper voltages. Thermal modeling of the cathode structures has facilitated design revisions which reduce this power requirement. |
NASA分類 | SPACECRAFT PROPULSION AND POWER |
レポートNO | 80A13311 AIAA PAPER 79-2103 |
権利 | Copyright |
URI | https://repository.exst.jaxa.jp/dspace/handle/a-is/423968 |