simulation of plasma wakefields and weibel instability of electron beams in plasma using codes lsp...
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Simulation of Plasma Wakefields and Weibel Instability of Electron Beams
in Plasma Using Codes LSP and OSIRIS
beam density plasma densityelectron density
A. Solodov, C. Ren, J. Myatt, and R. BettiUniversity of RochesterLaboratory for Laser EnergeticsW. B. Mori, UCLA
3d Meeting of the Fusion ScienceCenter for Extreme States of Matter
and Fast Ignition PhysicsUniversity of Rochester
26–27 January 2006
Codes LSP and OSIRIS
OSIRIS(developed at UCLA)
Explicit
PIC
LSP(product of MRC Albuquerque)
Explicit or Implicit
Particle (PIC) or Fluid
• Courant condition for the electromagnetic fields: Δt<Δx/c
• Numerical heating if Δx>3λD
• Courant condition is unnecessary in the implicit mode, non-resolved temporary modes are damped, remaining limitation: Δt < Δx/vte
• Implicit PIC: numerical heating or cooling if Δx>λD
• Implicit fluid: no numerical heating or cooling
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