skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Towards a fully kinetic 3D electromagnetic particle-in-cell model of streamer formation and dynamics in high-pressure electronegative gases

Abstract

Streamer and leader formation in high pressure devices is dynamic process involving a broad range of physical phenomena. These include elastic and inelastic particle collisions in the gas, radiation generation, transport and absorption, and electrode interactions. Accurate modeling of these physical processes is essential for a number of applications, including high-current, laser-triggered gas switches. Towards this end, we present a new 3D implicit particle-in-cell simulation model of gas breakdown leading to streamer formation in electronegative gases. The model uses a Monte Carlo treatment for all particle interactions and includes discrete photon generation, transport, and absorption for ultra-violet and soft x-ray radiation. Central to the realization of this fully kinetic particle treatment is an algorithm that manages the total particle count by species while preserving the local momentum distribution functions and conserving charge [D. R. Welch, T. C. Genoni, R. E. Clark, and D. V. Rose, J. Comput. Phys. 227, 143 (2007)]. The simulation model is fully electromagnetic, making it capable of following, for example, the evolution of a gas switch from the point of laser-induced localized breakdown of the gas between electrodes through the successive stages of streamer propagation, initial electrode current connection, and high-current conduction channel evolution, where self-magneticmore » field effects are likely to be important. We describe the model details and underlying assumptions used and present sample results from 3D simulations of streamer formation and propagation in SF{sub 6}.« less

Authors:
; ; ; ; ;  [1]; ;  [2]
  1. Voss Scientific, LLC, Albuquerque, New Mexico 87108 (United States)
  2. Sandia National Laboratories, Albuquerque, New Mexico 87185 (United States)
Publication Date:
OSTI Identifier:
22043526
Resource Type:
Journal Article
Journal Name:
Physics of Plasmas
Additional Journal Information:
Journal Volume: 18; Journal Issue: 9; Other Information: (c) 2011 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 1070-664X
Country of Publication:
United States
Language:
English
Subject:
70 PLASMA PHYSICS AND FUSION TECHNOLOGY; ABSORPTION; ALGORITHMS; BREAKDOWN; DISTRIBUTION FUNCTIONS; ELECTRIC DISCHARGES; ELECTRONEGATIVITY; GASES; LASER RADIATION; LIGHT TRANSMISSION; MAGNETIC FIELDS; MONTE CARLO METHOD; PARTICLE INTERACTIONS; PLASMA PRESSURE; PLASMA SIMULATION; PLASMA SWITCHES; PRESSURE RANGE MEGA PA 10-100; SOFT X RADIATION; SULFUR FLUORIDES; X-RAY SOURCES

Citation Formats

Rose, D. V., Welch, D. R., Clark, R. E., Thoma, C., Zimmerman, W. R., Bruner, N., Rambo, P. K., and Atherton, B. W. Towards a fully kinetic 3D electromagnetic particle-in-cell model of streamer formation and dynamics in high-pressure electronegative gases. United States: N. p., 2011. Web. doi:10.1063/1.3629989.
Rose, D. V., Welch, D. R., Clark, R. E., Thoma, C., Zimmerman, W. R., Bruner, N., Rambo, P. K., & Atherton, B. W. Towards a fully kinetic 3D electromagnetic particle-in-cell model of streamer formation and dynamics in high-pressure electronegative gases. United States. doi:10.1063/1.3629989.
Rose, D. V., Welch, D. R., Clark, R. E., Thoma, C., Zimmerman, W. R., Bruner, N., Rambo, P. K., and Atherton, B. W. Thu . "Towards a fully kinetic 3D electromagnetic particle-in-cell model of streamer formation and dynamics in high-pressure electronegative gases". United States. doi:10.1063/1.3629989.
@article{osti_22043526,
title = {Towards a fully kinetic 3D electromagnetic particle-in-cell model of streamer formation and dynamics in high-pressure electronegative gases},
author = {Rose, D. V. and Welch, D. R. and Clark, R. E. and Thoma, C. and Zimmerman, W. R. and Bruner, N. and Rambo, P. K. and Atherton, B. W.},
abstractNote = {Streamer and leader formation in high pressure devices is dynamic process involving a broad range of physical phenomena. These include elastic and inelastic particle collisions in the gas, radiation generation, transport and absorption, and electrode interactions. Accurate modeling of these physical processes is essential for a number of applications, including high-current, laser-triggered gas switches. Towards this end, we present a new 3D implicit particle-in-cell simulation model of gas breakdown leading to streamer formation in electronegative gases. The model uses a Monte Carlo treatment for all particle interactions and includes discrete photon generation, transport, and absorption for ultra-violet and soft x-ray radiation. Central to the realization of this fully kinetic particle treatment is an algorithm that manages the total particle count by species while preserving the local momentum distribution functions and conserving charge [D. R. Welch, T. C. Genoni, R. E. Clark, and D. V. Rose, J. Comput. Phys. 227, 143 (2007)]. The simulation model is fully electromagnetic, making it capable of following, for example, the evolution of a gas switch from the point of laser-induced localized breakdown of the gas between electrodes through the successive stages of streamer propagation, initial electrode current connection, and high-current conduction channel evolution, where self-magnetic field effects are likely to be important. We describe the model details and underlying assumptions used and present sample results from 3D simulations of streamer formation and propagation in SF{sub 6}.},
doi = {10.1063/1.3629989},
journal = {Physics of Plasmas},
issn = {1070-664X},
number = 9,
volume = 18,
place = {United States},
year = {2011},
month = {9}
}