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Laser ionized preformed plasma at FACET

  • S. Z. Green
  • , E. Adli
  • , C. I. Clarke
  • , S. Corde
  • , S. A. Edstrom
  • , A. S. Fisher
  • , J. Frederico
  • , J. C. Frisch
  • , S. Gessner
  • , S. Gilevich
  • , P. Hering
  • , M. J. Hogan
  • , R. K. Jobe
  • , M. Litos
  • , J. E. May
  • , D. R. Walz
  • , V. Yakimenko
  • , C. E. Clayton
  • , C. Joshi
  • , K. A. Marsh
  • N. Vafaei-Najafabadi, P. Muggli
  • SLAC National Accelerator Laboratory
  • University of Oslo
  • University of California at Los Angeles
  • Max Planck Institute for Physics (Werner Heisenberg Institute)

Research output: Contribution to journalArticlepeer-review

41 Scopus citations

Abstract

The Facility for Advanced Accelerator and Experimental Tests (FACET) at SLAC installed a 10-TW Ti : sapphire laser system for pre-ionized plasma wakefield acceleration experiments. High energy (500mJ), short (50fs) pulses of 800nm laser light at 1Hz are used at the FACET experimental area to produce a plasma column. The laser pulses are stretched to 250 fs before injection into a vapor cell, where the laser is focused by an axicon lens to form a plasma column that can be sustained over the desired radius and length. A 20GeV electron bunch interacts with this preformed plasma to generate a non-linear wakefield, thus accelerating a trailing witness bunch with gradients on the order of several GVm-1. The experimental setup and the methods for producing the pre-ionized plasma for plasma wakefield acceleration experiments performed at FACET are described.

Original languageEnglish
Article number084011
JournalPlasma Physics and Controlled Fusion
Volume56
Issue number8
DOIs
StatePublished - Aug 1 2014

Keywords

  • laser ionization
  • plasma source
  • plasma wakefield accelerator

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