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Charge steering of laser plasma accelerated fast ions in a liquid spray - creation of MeV negative ion and neutral atom beams

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    0439129 - FZÚ 2015 RIV US eng J - Journal Article
    Schnürer, M. - Abicht, F. - Prasad, R. - Borghesi, Marco - Priebe, G. - Braenzel, J. - Andreev, A. - Nickles, P.V. - Jequier, S. - Tikhonchuk, V. - Ter-Avetisyan, Sargis
    Charge steering of laser plasma accelerated fast ions in a liquid spray - creation of MeV negative ion and neutral atom beams.
    Physics of Plasmas. Roč. 20, č. 11 (2013), "113105-1"-"113105-6". ISSN 1070-664X. E-ISSN 1089-7674
    R&D Projects: GA MŠMT ED1.1.00/02.0061; GA MŠMT EE2.3.20.0279
    Grant - others:ELI Beamlines(XE) CZ.1.05/1.1.00/02.0061; LaserZdroj (OP VK 3)(XE) CZ.1.07/2.3.00/20.0279
    Institutional support: RVO:68378271
    Keywords : electron-capture * molecular-hydrogen * cross-sections * high-intensity * exchange * implantation
    Subject RIV: BL - Plasma and Gas Discharge Physics
    Impact factor: 2.249, year: 2013

    The scenario of electron capture and loss has been recently proposed for the formation of negative ion and neutral atom beams with up to MeV kinetic energy [S. Ter-Avetisyan, Appl. Phys. Lett. 99, 051501 (2011)]. Validation of these processes and of their generic nature is here provided in experiments where the ion source and the interaction medium have been spatially separated. Fast positive ions accelerated from a laser plasma source are sent through a cold spray where their charge is changed. Such formed neutral atom or negative ion has nearly the same momentum as the original positive ion. Experiments are released for protons, carbon, and oxygen ions and corresponding beams of negative ions and neutral atoms have been obtained. The electron capture and loss phenomenon is confirmed to be the origin of the negative ion and neutral atom beams. The equilibrium ratios of different charge components and cross sections have been measured.
    Permanent Link: http://hdl.handle.net/11104/0242438

     
     
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