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The object-oriented paradigm provides an opportunity for advanced PIC modeling, increased flexibility, and extensibility. Particle-in-cell codes for simulating plasmas are traditionally written inâ€¦ (More)

- Sang Ki Nam, John P. Verboncoeur
- 2008 IEEE International Power Modulators and Highâ€¦
- 2008

A major limiting factor in transmission of high power microwave radiation is dielectric window breakdown. Dielectric window breakdown from vacuum multipactor to collisional microwave discharge hasâ€¦ (More)

- Sang Ki Nam, John P. Verboncoeur
- Physical review letters
- 2009

Recently reported observations of filamentation during high power microwaves breakdown of near-atmospheric pressure gas are explained using a one-dimensional fluid model coupled to a theoreticalâ€¦ (More)

- Hyun-Chul Kim, John P. Verboncoeur
- Computer Physics Communications
- 2007

A numerical scheme is described to compute the reflection, absorption, and transmission coefficients of TEm,0 and plane electromagnetic waves propagating in a nonuniform plasma slab. The numericalâ€¦ (More)

We use a global model (volume averaged) to study plasma discharges in molecular oxygen gas in the 1-100 mTorr pressure range. This model determines densities of positive ions O2 and O +, negative ionâ€¦ (More)

- Chao Chang, John P. Verboncoeur, +6 authors Jinchuan Xie
- Physical review. E, Statistical, nonlinear, andâ€¦
- 2014

The time- and space-dependent optical emissions of nanosecond high-power microwave discharges near a dielectric-air interface have been observed by nanosecond-response four-framingâ€¦ (More)

- Collin S. Meierbachtol, Andrew D. Greenwood, John P. Verboncoeur, Balasubramaniam Shanker
- IEEE Transactions on Plasma Science
- 2015

Conformal (or body-fitted) electromagnetic particle-in-cell (EM-PIC) numerical solution schemes are reviewed. Included is a chronological history of relevant particle physics algorithms oftenâ€¦ (More)

- H. P. Freund, W K Miner, John P. Verboncoeur, Yanxia Li, E. Wright
- IEEE Transactions on Plasma Science
- 2007

In this paper, we discuss the development of a 3-D time-domain formulation and simulation code for modeling inductive output tubes (IOTs). This formulation relies on the integration of equivalentâ€¦ (More)

- Benjamin Ragan-Kelley, John P. Verboncoeur
- 2008 IEEE International Vacuum Electronicsâ€¦
- 2008

The one-dimensional Child-Langmuir law has been extended to two dimensions by numerical simulation in planar geometries . The space charge limit in two dimensions is examined. Simulations were doneâ€¦ (More)

The transmitted current in a crossedÌ„eld gap has been characterized analytically by a number of authors [1], [4], [6] and [7]. Using a one dimensional PIC simulation, PDP1 [9], we explore theâ€¦ (More)