Growth and phase velocity of self-modulated beam-driven plasma waves

Link:
Autor/in:
Erscheinungsjahr:
2011
Medientyp:
Text
Schlagworte:
  • Plasmas (physics)
  • Lasers
  • Laser wakefield
  • Inertial Confinement Fusion
  • Laser Produced Plasmas
  • Plasmas (Physics)
  • Plasmas (physics)
  • Lasers
  • Laser wakefield
  • Inertial Confinement Fusion
  • Laser Produced Plasmas
  • Plasmas (Physics)
Beschreibung:
  • A long, relativistic particle beam propagating in an overdense plasma is subject to the self-modulation instability. This instability is analyzed and the growth rate is calculated, including the phase relation. The phase velocity of the wake is shown to be significantly less than the beam velocity. These results indicate that the energy gain of a plasma accelerator driven by a self-modulated beam will be severely limited by dephasing. In the long-beam, strongly coupled regime, dephasing is reached in a homogeneous plasma in less than four e foldings, independent of beam-plasma parameters. © 2011 American Physical Society.
Lizenz:
  • info:eu-repo/semantics/openAccess
Quellsystem:
Forschungsinformationssystem der UHH
Interne Metadaten
Quelldatensatz
oai:www.edit.fis.uni-hamburg.de:publications/92935307-4cd4-44bc-a941-2ab8812b4bc3