Electromagnetically confined plasma target for interaction studies with intense laser fields
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Electromagnetically confined plasma target for interaction studies with intense laser fields

  • Author(s): Schneider, D.
  • McDonald, J.
  • Zielbauer, B.
  • Ursescu, D.
  • Spillmann, U.
  • Stohlker, Th.
  • Kuhl, T.
  • Schenkel, T.
  • Andler, G.
  • Lindroth, E.
  • Schuch, R.
  • et al.
Abstract

The paper describes a novel application of an electron beam ion trap as a plasma target facility for intense laser-plasma interaction studies. The low density plasma target (~;1013/cm3) is confined in a mobile cryogenic electromagnetic charged particle trap, with the magnetic confinement field of 1-3 T maintained by a superconducting magnet. Ion plasmas for a large variety of ion species and charge states are produced and maintained within the magnetic field and the space-charge of an energetic electron beam in the "electron beam ion trap" (EBIT) geometry. Intense laser beams (optical lasers, X-ray lasers and upcoming "X-ray free electron lasers" (XFEL)) provide strong time varying electromagnetic fields (>1012 V/cm in femto- to nano-second pulses) for interactions with electromagnetically confined neutral/non-neutral plasmas. Experimental scenarios with intense photon fields on ionization/excitation processes, the ionization balance, as well as photon polarization effects and tests with intense lasers that utilize the ion plasma target are outlined. A first test of the plasma target with the PHELIX high intensity laser at GSI is described.

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