Počet záznamů: 1

Production of dense laser-driven plasma jets using a cylindrical channel

  1. 1.
    0351083 - FZU-D 2011 RIV GB eng J - Článek v odborném periodiku
    Badziak, J. - Pisarczyk, T. - Chodukowski, T. - Kasperczuk, A. - Parys, P. - Rosiriski, M. - Wolowski, J. - Krouský, Eduard - Krása, Josef - Mašek, Karel - Pfeifer, Miroslav - Skála, Jiří - Ullschmied, Jiří - Velyhan, Andriy - Rhee, Y.-J. - Pisarczyk, P. - Dhareshwar, L.J. - Gupta, N.K. - Torrisi, L.
    Production of dense laser-driven plasma jets using a cylindrical channel.
    Journal of Physics: Conference Series. Roč. 244, č. 2 (2010), 022023/1-022023/4 ISSN 1742-6588
    Grant CEP: GA MŠk(CZ) 7E08099; GA MŠk(CZ) LC528; GA MŠk(CZ) 7E08094
    GRANT EU: European Commission(XE) 212105 - ELI-PP
    Výzkumný záměr: CEZ:AV0Z10100523; CEZ:AV0Z20430508
    Klíčová slova: supersonic plasma jets * laser plasma ablation * laboratory astrophysics
    Kód oboru RIV: BL - Fyzika plazmatu a výboje v plynech

    A simple method of production of supersonic plasma jets with parameters relevant to laboratory astrophysics applications is proposed and demonstrated. The method consists in using a cylindrical channel for guiding and collimating the plasma generated from a laser-irradiated thin foil target. In the experiment, a 120 J, 1.315 uμm, 0.3 ns laser pulse irradiated a thin (10 or 20 uμm) CH foil placed at the entrance of the cylindrical channel (made in the aluminum cylinder) of diameter dCh = 0.3 mm and length of 2 mm. It was found that when the focal spot diameter (dL) is well matched to the channel diameter (dL approx (2/3)dCh), the channel can form a collimated, high-density (up to 1020cm-3) plasma jet of the Mach number ≥10. The method seems to be flexible in the generation of jets of various hydrodynamic parameters and atomic numbers and does not require high-energy lasers for the jet production.
    Trvalý link: http://hdl.handle.net/11104/0190910