Electromagnetic PIC modeling with a background gas

Journal Article · Sat Feb 01 00:00:00 EST 1997 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.52371· OSTI ID:538305

Verboncoeur, J P; Cooperberg, D ^[1]

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1. Electronics Research Laboratory University of California Berkeley, California 94720-1774 (United States)

Modeling the interaction of relativistic electromagnetic plasmas with a background gas is described. The timescales range over many orders of magnitude, from the electromagnetic Courant condition ({approximately}10{sup {minus}12}sec) to electron-neutral collision times ({approximately}10{sup {minus}7}sec) to ion transit times ({approximately}10{sup {minus}5}sec). For this work, the traditional Monte Carlo algorithm [1] is described for relativistic electrons. Subcycling is employed to improve efficiency, and smoothing is employed to reduce particle noise. Applications include plasma-focused electron guns, gas-filled microwave tubes, surface wave discharges driven at microwave frequencies, and electron-cyclotron resonance discharges. The method is implemented in the OOPIC code [2]. {copyright} {ital 1997 American Institute of Physics.}

• Sponsoring Organization: USDOE
• OSTI ID: 538305
• Report Number(s): CONF-9609256-; ISSN 0094-243X; TRN: 97:018614
• Journal Information: AIP Conference Proceedings, Vol. 391, Issue 1; Conference: CAP `96: 1996 computational accelerator physics conference, Williamsburg, VA (United States), 24-27 Sep 1996; Other Information: PBD: Feb 1997
• Country of Publication: United States
• Language: English

Related Subjects

43 PARTICLE ACCELERATORS
ACCELERATORS
BEAM DYNAMICS
BEAM TRANSPORT
MATHEMATICAL MODELS
ELECTRON BEAMS
RELATIVISTIC RANGE
MONTE CARLO METHOD
ELECTRON-ATOM COLLISIONS