Zobrazeno 1 - 7
of 7
pro vyhledávání: '"Shane P. Malone"'
Publikováno v:
Journal of Spacecraft and Rockets. 45:766-775
north–south station keeping, allowing substantial reductions in onboard propellant mass. Consideration of the spacecraft–thrusterinteractionsisnecessarywhenimplementingelectricpropulsionthrustersontocommunications satellites. Impingement of high-
Autor:
Kristen M. Bury, John Steven Snyder, Shane P. Malone, Tyler A. Hickman, Damon Landau, Thomas Randolph
Publikováno v:
47th AIAA/ASME/SAE/ASEE Joint Propulsion Conference & Exhibit.
Near-Earth Objects (NEOs) are exciting targets for exploration; they are relatively easy to reach but relatively little is known about them. With solar electric propulsion, a vast number of interesting NEOs can be reached within a few years and with
Autor:
Jonathan L. Van Noord, Shane P. Malone, Tyler A. Hickman, George J. Williams, Thomas W. Haag, John E. Foster, Michael J. Patterson
Publikováno v:
42nd AIAA/ASME/SAE/ASEE Joint Propulsion Conference & Exhibit.
This paper presents an in depth analysis of the pyrolytic graphite (PG) ion optics used in the 2000 hr wear test of the HiPEP ion thruster. The results of the 2000 hour wear test are compared to the numerical predictions in an effort to validate the
Autor:
Tyler A. Hickman, Shane P. Malone, George J. Williams, Thomas W. Haag, John E. Foster, Michael J. Patterson, Jonathan L. Van Noord
Publikováno v:
42nd AIAA/ASME/SAE/ASEE Joint Propulsion Conference & Exhibit.
A 25 kW, long-life ion thruster was developed and wear tested at the NASA Glenn Research Center in support of Project Prometheus. The 2000 hr wear test was undertaken to quantify known erosion phenomena such as ion optics erosion due to charge exchan
Autor:
Jonathan L. Van Noord, John R. Miller, Shane P. Malone, Vicki J. Crable, John E. Foster, Michael J. Patterson, Tyler A. Hickman, George J. Williams, Don Fong, Thomas W. Haag
Publikováno v:
41st AIAA/ASME/SAE/ASEE Joint Propulsion Conference & Exhibit.
The HiPEP ion thruster successfully completed a 2000 hr wear test in support of the development of high -power, high-specific impulse ion thruster development. The average beam power, specific impulse, and beam current were 20.8 kW, 7650 s, and 3.60
Publikováno v:
41st AIAA/ASME/SAE/ASEE Joint Propulsion Conference & Exhibit.
The performance of the HiPEP ion thruster, developed within NASA’a Project Prometheus, was characterized. The pyrolytic graphite ion optics demonstrated perveance and electron backstreaming margins well in excess of tho se necessary to operate at t
Autor:
Anita Sengupta, Fred Elliott, George C. Soulas, Dan M. Goebel, Shane P. Malone, Michael J. Patterson
Publikováno v:
41st AIAA/ASME/SAE/ASEE Joint Propulsion Conference & Exhibit.
The Glenn Research Center (GRC) and the Jet Propulsion Laboratory (JPL) are leading a government technology program to design, develop, and validate a thruster for NASA’s Prometheus Project, and specifically, for the JIMO mission. This joint effort