Zobrazeno 1 - 10
of 20
pro vyhledávání: '"Chris S. Olsen"'
Autor:
Edgar A. Bering, Paul A. Cloutier, Mark Carter, Matthew Giambusso, T. W. Glover, Franklin R. Chang Díaz, Maxwell G. Ballenger, Chris S. Olsen, Benjamin W. Longmier, Jared P. Squire, A. V. Ilin
Publikováno v:
IEEE Transactions on Plasma Science. 43:252-268
Understanding the physics involved in plasma detachment from magnetic nozzles is well theorized, but lacking in large scale experimental support. We have undertaken an experiment using the 150-m $^{3}$ variable specific impulse magnetoplasma rocket t
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
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]
Autor:
Franklin R. Chang Díaz, Benjamin W. Longmier, Jared P. Squire, Edgar A. Bering, Chris S. Olsen, Mark Carter, A. V. Ilin, Matthew Giambusso
Publikováno v:
AIAA SPACE 2015 Conference and Exposition.
We explore the capability of a VASIMR ® reusable probe “catapult” concept to send a 4000-5000 kg spacecraft to Jupiter on a Hohmann-like transfer orbit, arriving in just 36 months elapsed time. The VASIMR ® performs a slingshot pass close to th
Autor:
Matthew Giambusso, Benjamin W. Longmier, Jared P. Squire, Franklin R. Chang Díaz, Mark Carter, A. V. Ilin, Chris S. Olsen, Edgar A. Bering
Publikováno v:
AIAA SPACE 2014 Conference and Exposition.
We explore the capability of a VASIMR ® reusable probe "catapult" concept to send a 4000-5000 kg spacecraft to Jupiter on a Hohmann-like transfer orbit, arriving in just 36 months elapsed time. The VASIMR ® performs a slingshot pass close to the Su
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
Autor:
Matthew Giambusso, C. Richard DeVore, Barbara J. Thompson, Edgar A. Bering, David M. Smith, Mark Carter, Benjamin W. Longmier, Jared P. Squire, Gregg A. Edeen, Davin Larson, Chris S. Olsen, Spiro K. Antiochos, James P. McFadden
Publikováno v:
52nd Aerospace Sciences Meeting.
We describe a proposed laboratory-experiment research program that will answer the fundamental question: What is the role of reconnection in opening and closing the solar magnetic field? While attacking this question, we will also address the most im
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
Autor:
Leonard D. Cassady, Franklin R. Chang Díaz, Edgar A. Bering, Benjamin W. Longmier, Jared P. Squire, Chris S. Olsen
Publikováno v:
AIAA SPACE 2011 Conference & Exposition.
®) VX-200 engine, a 200 kW flight-technology prototype. Results from high power Helicon only and Helicon with ICH experiments are presented from the VX-200 using argon propellant. Total VX-200 system efficiencies are presented from recent results wi
Publikováno v:
42nd AIAA Plasmadynamics and Lasers Conference.
The e ciency of a magnetic nozzle in converting thermal energy into directed axial energy is dependent on several factors, most notably on how and where the plasma separates or \detaches" from the nozzle. A detailed knowledge of the physics of this d