Recent advances in multipactor physics and mitigation

A Iqbal, DQ Wen, J Verboncoeur, P Zhang - High Voltage, 2023‏ - Wiley Online Library
Recent progress made in the prediction, characterisation, and mitigation of multipactor
discharge is reviewed for single‐and two‐surface geometries. First, an overview of basic …

Review of recent theories and experiments for improving high-power microwave window breakdown thresholds

C Chang, G Liu, C Tang, C Chen, J Fang - Physics of Plasmas, 2011‏ - pubs.aip.org
Dielectric window breakdown is a serious challenge in high-power microwave (HPM)
transmission and radiation. Breakdown at the vacuum/dielectric interface is triggered by …

[HTML][HTML] Transitions between electron emission and gas breakdown mechanisms across length and pressure scales

AL Garner, G Meng, Y Fu, AM Loveless… - Journal of Applied …, 2020‏ - pubs.aip.org
This Perspective outlines theoretical, simulation, and experimental studies linking electron
emission and gas breakdown. Many studies have investigated field emission-driven …

Theory and Modeling of Self-Organization and Propagation of Filamentary Plasma Arrays<? format?> in Microwave Breakdown at Atmospheric Pressure

JP Boeuf, B Chaudhury, GQ Zhu - Physical review letters, 2010‏ - APS
High power microwave breakdown at atmospheric pressure leads to the formation of
filamentary plasma arrays that propagate toward the source. A two-dimensional model …

Higher harmonics in multipactor induced plasma ionization breakdown near a dielectric surface

DQ Wen, P Zhang, J Krek, Y Fu, JP Verboncoeur - Physical Review Letters, 2022‏ - APS
In this Letter, the novel physics of higher harmonic (HH) generation of the normal electric
field near a dielectric surface is reported in multipactor induced plasma ionization …

Pressure dependence of plasma structure in microwave gas breakdown at 110 GHz

A Cook, M Shapiro, R Temkin - Applied physics letters, 2010‏ - pubs.aip.org
Recent studies of 110 GHz microwave discharges in air at atmospheric pressure have
demonstrated formation of a large array of quarter-wavelength-spaced plasma filaments …

Dynamics of plasma formation and gas heating in a focused-microwave discharge in nitrogen

AI Saifutdinov, EV Kustova - Journal of Applied Physics, 2021‏ - pubs.aip.org
A self-consistent extended fluid-dynamic model describing a focused microwave discharge
in a molecular gas is developed, and numerical simulations of the formation of plasmoids in …

Plasma structures observed in gas breakdown using a 1.5 MW, 110 GHz pulsed gyrotron

Y Hidaka, EM Choi, I Mastovsky, MA Shapiro… - Physics of …, 2009‏ - pubs.aip.org
Regular two-dimensional plasma filamentary arrays have been observed in gas breakdown
experiments using a pulsed 1.5 MW, 110 GHz gyrotron. The gyrotron Gaussian output beam …

Simulation of filamentation dynamics of microwave discharge in nitrogen

A Saifutdinov, E Kustova - Plasma Sources Science and …, 2023‏ - iopscience.iop.org
The present study deals with numerical simulations of microwave (MW) discharges in
nitrogen based on extended fluid-dynamic model. The set of governing equations for non …

Enhanced window breakdown dynamics in a nanosecond microwave tail pulse

C Chang, M Zhu, J Verboncoeur, S Li, J **e… - Applied Physics …, 2014‏ - pubs.aip.org
The mechanisms of nanosecond microwave-driven discharges near a dielectric/vacuum
interface were studied by measuring the time-and space-dependent optical emissions and …