Výsledky vyhledávání - "Tim W. Glover"

Improved Efficiency and Throttling Range of the VX-200 Magnetoplasma Thruster

Autor: Benjamin W. Longmier, Jared P. Squire, Maxwell G. Ballenger, Edgar A. Bering, Mark D. Carter, Franklin R. Chang Díaz, Andrew V. Ilin, Greg McCaskill, Tim W. Glover, Chris S. Olsen, Leonard D. Cassady

Publikováno v: Journal of Propulsion and Power. 30:123-132

Testing of the Variable Specific Impulse Magnetoplasma Rocket VX-200 engine was performed over a wide throttle range in a 150 m3 vacuum chamber with sufficient pumping to permit exhaust plume measurements at argon background pressures less than 1×10

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::7e20b6fdfe10823c240f18c15234bc55
https://doi.org/10.2514/1.b34801

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VX-200 Magnetoplasma Thruster Performance Results Exceeding Fifty-Percent Thruster Efficiency

Autor: Edgar A. Bering, Benjamin W. Longmier, Jared P. Squire, Leonard D. Cassady, Franklin Chang-Diaz, Tim W. Glover, Maxwell G. Ballenger, Chris S. Olsen, Mark Carter, A. V. Ilin, Greg McCaskill

Publikováno v: Journal of Propulsion and Power. 27:915-920

H IGH-POWER electric propulsion thrusters can reduce propellant mass for heavy-payload orbit-raising missions and cargo missions to the moon and near-Earth asteroids, and they can reduce the trip time of robotic and piloted planetary missions [1–4]

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::495c35329b6c259006e74250518cdf3a
https://doi.org/10.2514/1.b34085

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Adiabatic plasma expansion in a magnetic nozzle

Autor: Benjamin W. Longmier, Jared P. Squire, J. P. Sheehan, Edgar A. Bering, Franklin R. Chang Díaz, Leonard D. Cassady, Mark Carter, Maxwell G. Ballenger, Tim W. Glover, Chris S. Olsen, Andrew V. Hin

Publikováno v: 2014 IEEE 41st International Conference on Plasma Sciences (ICOPS) held with 2014 IEEE International Conference on High-Power Particle Beams (BEAMS).

A mechanism for ambipolar ion acceleration in a magnetic nozzle is proposed. The plasma is adiabatic in the diverging section of a magnetic nozzle so any energy lost by the electrons must be transferred to the ions via the electric field. Fluid theor

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::711d0a1441c86e3312d5448a4e7e2fa4
https://doi.org/10.1109/plasma.2014.7012590

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Experimental Status of the Development of a Variable Specific Impulse Magnetoplasma Rocket

Autor: F. Wally Baity, Jared P. Squire, D. O. Sparks, Mark D. Carter, V. T. Jacobson, Roger D. Bengtson, Franklin R. Chang Díaz, Andrew V. Ilin, Glenn C. Barber, Greg McCaskill, Robert G. Bussell, Richard Goulding, Tim W. Glover

Publikováno v: Fusion Technology. 35:243-247

The Advanced Space Propulsion Laboratory (ASPL) is developing a Variable Specific Impulse Magnetoplasma Rocket (VASIMR) using a Radio Frequency (RF) heated magnetic mirror operated asymmetrically. The system comprises of three stages: 1) plasma ioniz

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::6992fd73aa3ace035cf27344ad10b252
https://doi.org/10.13182/fst99-a11963860

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VASIMR® VX-200 Improved Throttling Range

Autor: Mark D. Carter, Leonard D. Cassady, Edgar A. Bering, Franklin R. Chang Díaz, Benjamin W. Longmier, Jared P. Squire, Tim W. Glover, Chris S. Olsen, Maxwell G. Ballenger, Andrew V. Ilin, Greg McCaskill

Publikováno v: 48th AIAA/ASME/SAE/ASEE Joint Propulsion Conference & Exhibit.

Testing of the VX-200 engine was performed over a wide throttle range in a vacuum facility with sufficient volume and pumping to permit exhaust plume measurements at low background pressures and sufficiently large charge exchange mean free paths. Exp

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::f2475eabac701f2929ac18f6c41a6873
https://doi.org/10.2514/6.2012-3930

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Performance Measurements and Technology Demonstration of the VASIMR® VX-200

Autor: Franklin R. Chang Díaz, Benjamin W. Longmier, Jared P. Squire, Leonard D. Cassady, Edgar A. Bering, A. V. Ilin, Mark Carter, Greg McCaskill, Tim W. Glover, Chris S. Olsen

Publikováno v: AIAA SPACE 2010 Conference & Exposition.

® ) VX-200, a 200 kW flight-technology prototype. Results are presented from first stage only and first stage with booster stage experiments that were performed on the VX-200 using between 60 mg/s and 150 mg/s argon propellant. Measurements of ion f

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::0e8e11d473d5e370338e88d05cad33d8
https://doi.org/10.2514/6.2010-8669

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Ambipolar Ion Acceleration in the Expanding Magnetic Nozzle of the VASIMR VX-200i

Autor: Franklin R. Chang Díaz, Andrew V. Ilin, Edgar A. Bering, Greg McCaskill, Benjamin W. Longmier, Jared P. Squire, Mark D. Carter, Tim W. Glover, William J. Chancery, Chris S. Olsen, Leonard D. Cassady

Publikováno v: 45th AIAA/ASME/SAE/ASEE Joint Propulsion Conference & Exhibit.

An observed 20 eV argon ion energy is attributed to a measured axial plasma potential profile within the expanding magnetic nozzle region of the Variable Specific Impulse Magnetoplasma Rocket (VASIMR ® ) VX-200i device, a 10% field version of the VX

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::be329d2b2ce757305c42edd506f04588
https://doi.org/10.2514/6.2009-5359

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