In a qualification life test of a Hall thruster it was found that the erosion of the acceleration channel practically stopped after∼ 5600 h. Numerical simulations using a two …
EM Petro, RJ Sedwick - Journal of Spacecraft and Rockets, 2017 - arc.aiaa.org
ELECTRIC propulsion (EP) systems have become an integral component of space mission architectures. The field of EP has grown to include unique systems that fill niches from …
K de Grys, A Mathers, B Welander… - 46th AIAA/ASME/SAE …, 2010 - arc.aiaa.org
Between 2007 and 2009, Aerojet and Lockheed Martin Space Systems Company (LMSSC) successfully extended the demonstrated operating duration of the qualification model BPT …
I. Introduction all thrusters provide an attractive combination of thrust and specific impulse for a variety of near-earth missions. In many cases these systems allow for significant …
R Hofer, I Katz, D Goebel, K Jameson… - 44th AIAA/ASME/SAE …, 2008 - arc.aiaa.org
OMMERCIAL electric propulsion systems are now being considered as a cost effective solution for competitively awarded science missions such as the NASA Discovery and New …
Abstract An oxygen-fuelled Hall Effect Thruster is investigated at the Imperial Plasma Propulsion Laboratory vacuum chamber facilities over a different range of discharge …
J Snyder, DM Goebel, RR Hofer, JE Polk… - Journal of Propulsion …, 2012 - arc.aiaa.org
WITH the recent launch of the Dawn spacecraft and the successful operation of its NSTAR ion propulsion system [1], new and challenging deep space missions that can use ion …
DM Goebel, KK Jameson, RR Hofer - Journal of Propulsion and Power, 2012 - arc.aiaa.org
INTEREST in Hall thruster research and development has increased significantly in the United States over the past 20 years. Hall thrusters offer several system advantages over ion …
The effects of cathode position on the operation and plume properties of an 8-kW Hall thruster are discussed. Thruster operation was investigated at operating conditions ranging …