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타이틀	NASA''s Evolutionary Xenon Thruster (NEXT) Prototype Model 1R (PM1R) Ion Thruster and Propellant Management System Wear Test Results
저자	VanNoord, Jonathan L.;; Soulas, George C.;; Sovey, James S.
Keyword	ENGINEERING MANAGEMENT;; ION ENGINES;; PERFORMANCE TESTS;; PROPELLANT TESTS;; PROTOTYPES;; ROCKET THRUST;; SPECIFIC IMPULSE;; WEAR TESTS;; XENON
URL	http://hdl.handle.net/2060/20110000531
보고서번호	NASA/TM-2010-216916
발행년도	2010
출처	NTRS (NASA Technical Report Server)
ABSTRACT	The results of the NEXT wear test are presented. This test was conducted with a 36-cm ion engine (designated PM1R) and an engineering model propellant management system. The thruster operated with beam extraction for a total of 1680 hr and processed 30.5 kg of xenon during the wear test, which included performance testing and some operation with an engineering model power processing unit. A total of 1312 hr was accumulated at full power, 277 hr at low power, and the remainder was at intermediate throttle levels. Overall ion engine performance, which includes thrust, thruster input power, specific impulse, and thrust efficiency, was steady with no indications of performance degradation. The propellant management system performed without incident during the wear test. The ion engine and propellant management system were also inspected following the test with no indication of anomalous hardware degradation from operation.