Zobrazeno 1 - 10
of 12
pro vyhledávání: '"Matthew S. Feldman"'
Autor:
Edgar Y. Choueiri, Matthew S. Feldman
Publikováno v:
Journal of Propulsion and Power. 34:1124-1130
A propulsion concept relying on the direct steady-state acceleration of a plasma by an inductive wave-launching antenna is presented. By operating inductively in steady state, a direct wave-drive t...
Autor:
Aimee A. Hubble, Dylan Dickstein, Nasr M. Ghoniem, Rostislav Spektor, Matthew S. Feldman, Jaime Marian, Hsing-Yin Chang
Publikováno v:
Journal of Applied Physics. 128:123302
An experimental and computational study of the secondary electron yield (SEY) of copper foam is presented. Ray-tracing Monte Carlo (MC) simulations, based on primary electron transport and interactions with the electron system in solid and foam-type
Publikováno v:
2018 IEEE MTT-S International Conference on Numerical Electromagnetic and Multiphysics Modeling and Optimization (NEMO).
Multipactor breakdown is highly dependent on the precise secondary electron properties of the electrode materials and these properties are often subject to some uncertainty. The sensitivity of the multipactor breakdown threshold to various coefficien
Publikováno v:
2018 IEEE International Conference on Plasma Science (ICOPS).
Contrary to single particle analysis of multipactor discharges, experimental results show that application of a magnetic field parallel to the RF electric field can result in a significant reduction of the breakdown threshold voltage1. One explanatio
Publikováno v:
2018 IEEE International Conference on Plasma Science (ICOPS).
Many high power RF communication and navigation systems utilize multicarrier systems. Testing such systems for multipactor breakdown has no universal approach, and current practices range in their degree of conservatism. A common approach involves co
Publikováno v:
Physics of Plasmas. 26:053502
Many high-power radio frequency communication and navigation systems utilize multicarrier systems. Testing and analyzing such systems for multipactor breakdown have no universal approach, and current practices range in their degree of conservatism. A
Publikováno v:
Physics of Plasmas. 25:122109
Numerical and theoretical models were developed to investigate space-charge effects in a multipactor discharge with an applied magnetic field. The magnetic field was assumed to be parallel to the RF electric field, and only the space-charge effects i
Autor:
Edgar Y. Choueiri, Matthew S. Feldman
Publikováno v:
52nd AIAA/SAE/ASEE Joint Propulsion Conference.
Publikováno v:
51st AIAA/SAE/ASEE Joint Propulsion Conference.
An experiment designed to demonstrate ion acceleration in a Direct Wave-Drive Thruster (DWDT) was constructed. A DWDT is a new propulsion concept that relies on waves to transfer momentum directly to a plasma without electrodes. In order to demonstra
Autor:
Matthew S. Feldman, Edgar Y. Choueiri
Publikováno v:
50th AIAA/ASME/SAE/ASEE Joint Propulsion Conference.