Electromagnetically confined plasma target for interaction studies with intense laser fields
نویسندگان
چکیده
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 ( 10/cm) 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 (>10 V/cm in femtoto 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. 2007 Elsevier B.V. All rights reserved. PACS: 52.50.Dg; 52.27.Jt; 52.27.Cm
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