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Kinetic simulations and reduced modeling of longitudinal sideband instabilities in non-linear electron plasma waves

Journal Article · · Physics of Plasmas
DOI:https://doi.org/10.1063/1.4896753· OSTI ID:1165757
 [1];  [2];  [2];  [1];  [3]
  1. Centre de Recherches en Physique des Plasmas, Association Euratom-Confédération Suisse, Ecole Polytechnique Fédérale de Lausanne, Lausanne, (Switzerland)
  2. Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
  3. Princeton Plasma Physics Lab. (PPPL), Princeton, NJ (United States)

Kinetic Vlasov simulations of one-dimensional finite amplitude Electron Plasma Waves are performed in a multi-wavelength long system. A systematic study of the most unstable linear sideband mode, in particular its growth rate γ and quasi- wavenumber δk, is carried out by scanning the amplitude and wavenumber of the initial wave. Simulation results are successfully compared against numerical and analytical solutions to the reduced model by Kruer et al. [Phys. Rev. Lett. 23, 838 (1969)] for the Trapped Particle Instability (TPI). A model recently suggested by Dodin et al. [Phys. Rev. Lett. 110, 215006 (2013)], which in addition to the TPI accounts for the so-called Negative Mass Instability because of a more detailed representation of the trapped particle dynamics, is also studied and compared with simulations.

Research Organization:
Lawrence Livermore National Laboratory (LLNL), Livermore, CA
Sponsoring Organization:
USDOE
OSTI ID:
1165757
Alternate ID(s):
OSTI ID: 22299647
Journal Information:
Physics of Plasmas, Journal Name: Physics of Plasmas Journal Issue: 10 Vol. 21; ISSN PHPAEN; ISSN 1070-664X
Publisher:
American Institute of Physics (AIP)Copyright Statement
Country of Publication:
United States
Language:
English

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Self-organized standing waves generated by AC-driven electron cyclotron drift instabilities journal December 2019
Test cases for grid-based direct kinetic modeling of plasma flows journal June 2018
Ion kinetics and nonlinear saturation of current-driven instabilities relevant to hollow cathode plasmas journal May 2019

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