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 …

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 …

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 …

Metamaterial-inspired vacuum electron devices and accelerators

Z Duan, MA Shapiro, E Schamiloglu… - … on Electron Devices, 2018 - ieeexplore.ieee.org
Metamaterials (MTMs) are structured materials with subwavelength features that can be
engineered to have some unique properties not found in nature, such as negative refractive …

Estimating elliptic flow coefficient in heavy ion collisions using deep learning

N Mallick, S Prasad, AN Mishra, R Sahoo… - Physical Review D, 2022 - APS
Machine learning techniques have been employed for the high energy physics community
since the early 80s to deal with a broad spectrum of problems. This work explores the …

Development of -band single-cell dielectric disk accelerating structures

B Freemire, J Shao, S Weatherly, M Peng… - … Review Accelerators and …, 2023 - APS
Short-pulse two-beam acceleration (TBA) is a promising advanced accelerator concept that
may meet the luminosity and cost requirements of future large-scale linear colliders …

Multipactor in rectangular waveguides

VE Semenov, EI Rakova, D Anderson, M Lisak… - Physics of …, 2007 - pubs.aip.org
Multipactor inside a rectangular waveguide is studied using both an analytical approach and
numerical simulations. Particular attention is given to an analysis of the role of such effects …

CST particle studio simulations of coaxial multipactor and comparison with experiments

SV Langellotti, NM Jordan, YY Lau… - IEEE Transactions on …, 2020 - ieeexplore.ieee.org
Using CST Particle Studio, we simulate the evolution of the multipactor, beginning with a
single seed electron inside a coaxial waveguide. Upon impact with either the outer or inner …

Susceptibility of multipactor discharges near a dielectric driven by a Gaussian-type transverse rf electric field

DQ Wen, A Iqbal, P Zhang, JP Verboncoeur - Applied Physics Letters, 2022 - pubs.aip.org
Multipactor discharge near an rf window is a key limiting factor in high power microwave
systems. In this work, we report special features of dielectric multipactor susceptibility under …

Multipactor susceptibility on a dielectric with a bias dc electric field and a background gas

P Zhang, YY Lau, M Franzi, RM Gilgenbach - Physics of Plasmas, 2011 - pubs.aip.org
We use Monte Carlo simulations and analytical calculations to derive the condition for the
onset of multipactor discharge on a dielectric surface at various combinations of the bias dc …