Experimental Progress: Current Filamentation Instability Study

نویسندگان

  • Brian Allen
  • Patric Muggli
  • Joana Martins
  • Luís O. Silva
  • Vitaly Yakimenko
  • Mikhail Fedurin
  • Karl Kusche
  • Marcus Babzien
  • Chengkun Huang
  • Warren Mori
چکیده

Current Filamentation Instability, CFI, is of central importance for the propagation of relativistic electron beams in plasmas. CFI has potential relevance to astrophysics, magnetic field and radiation generation in the afterglow of gamma ray bursts, and inertial confinement fusion, energy transport in the fast-igniter concept. An experimental study of this instability is underway at the Brookhaven National Laboratory – Accelerator Test Facility. We use the particle-in-cell code QuickPIC to study phenomena observed in the experiment. These include merging of filaments and the dependence of the growth rate of the instability on plasma density and beam emittance.

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تاریخ انتشار 2012