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Magnetic Priming at the Cathode of a Relativistic Magnetron
Experiments have been performed in testing magnetic priming at the cathode of a relativistic magnetron to study the effects on high-power microwave performance. Magnetic priming consists of N/2Expand
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Modeling RF Window Breakdown: From Vacuum Multipactor to Volumetric Ionization Discharge
Plasma breakdown at dielectric windows the output of high power microwave systems has become an important challenge with the advent of GW power level sources. In this work, we report a number ofExpand
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EDITORIAL - Power Modulators and Repetitive Pulsed Power
Plasma breakdown at dielectric windows in the output of high power microwave systems has become an important challenge with the advent of GW power level sources. The modeling and simulations haveExpand
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Effect of Random Circuit Fabrication Errors on Small-Signal Gain and Phase in Traveling-Wave Tubes
Motivated by current interest in submillimeter and terahertz (THz) slow-wave vacuum electronic amplifiers, which employ miniature, difficult-to-manufacture slow-wave circuits, we evaluate the effectsExpand
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Electromagnetic and 3D Effects in the Multipactor Discharge on a Dielectric
In high-power microwave systems with and without the background gas, the effect of the transverse field structure on the discharge is investigated by comparing the pseudo-3D simulation in TE10 modeExpand
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Transition of dielectric window breakdown from vacuum multipactor to collisional microwave discharge: a general scaling law
Summary form only given. Dielectric window breakdown remains a significant issue for high power microwave systems. Using a particle-in-cell model with Monte Carlo collisions, we investigate theExpand
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Transition of Window Breakdown from the Vacuum Multipactor Discharge to the Collisional RF Plasm
In high-power microwave systems, we investigate the transition of breakdown from single surface vacuum multipactor discharge to collisional rf plasma in argon. As the gas pressure increases,Expand
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Innovations and Fundamental Insights of Advanced Field Emission Cathodes for High Power Microwave (HPM) Sources
One of the key remaining challenges for HPM (> 100 MW, <1 mus) sources is the development of robust high current density field emission cathodes. Funded by the USDOD/AFOSR under the MURI04 program, aExpand
Advances in modeling microwave window breakdown
Summary form only given. Dielectric window breakdown remains a significant issue for high power microwave systems. Using a particle-in-cell (PIC) model with Monte Carlo collisions, we investigate theExpand
Transition from Fowler-Nordheim Field Emission to Space Charge Limited Current Density in the Relativistic and Quantum Limits
This paper considers the transition from field emission according to the Fowler-Nordheim equation to the space charge limited regime. It extends previous works to the quantum limit and to theExpand
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