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Phases of plasma produced with nanosecond laser

  1. 1.
    0487419 - FZÚ 2018 RIV FR eng C - Konferenční příspěvek (zahraniční konf.)
    Krása, Josef - De Marco, Massimo - Cikhardt, Jakub - Pfeifer, Miroslav - Velyhan, Andriy - Klír, Daniel - Řezáč, Karel - Krůs, Miroslav - Dostál, Jan - Dudžák, Roman - Skála, Jiří
    Phases of plasma produced with nanosecond laser.
    EPS 2017: 44th European Physical Society Conference on Plasma Physics. Vol. 41F. Mulhouse: European Physical Society, 2017 - (Fajardo, M.; Westerhof, E.; Riconda, C.; Melzer, A.; Bret, A.; Dromey, B.), s. 1-4, č. článku P2.205. Europhysics Conference Abstracts (ECA). ISBN 979-10-96389-07.
    [EPS 2017: Conference on Plasma Physics /44./. Belfast (GB), 26.06.2017-30.06.2017]
    Grant CEP: GA MŠMT EF15_008/0000162; GA ČR GA16-07036S; GA MŠMT LG15013
    Grant ostatní: ELI Beamlines(XE) CZ.02.1.01/0.0/0.0/15_008/0000162
    Institucionální podpora: RVO:68378271 ; RVO:61389021
    Klíčová slova: nanosecond laser * electromagnetic radiation (EMP) * plasma
    Obor OECD: Fluids and plasma physics (including surface physics)
    http://ocs.ciemat.es/EPS2017PAP/pdf/P2.205.pdf

    Our experimental studies have shown that the time-resolved target current indicates the occurrence of various phases of the laser-produced plasma. During the first plasma phase defined by the duration of laser-target interaction, the time derivative of the target current matches the time-resolved laser intensity. The second phase of the laser-produced plasma starts after termination of the laser-matter interaction. For the entire duration of this active phase, the plasma surviving on the target surface emits transient electromagnetic radiation (EMP), X-ray radiation, and slow ions. This surface plasma causes the target charging balanced by a return target current on a time scale of 100 ns. Then the target holder acts as a probe, the signal of which can indicate a residual plasma persisting inside the target chamber on a time scale of microseconds.
    Trvalý link: http://hdl.handle.net/11104/0282081

     
     
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