Počet záznamů: 1  

Study of radiative shocks using 2D interferometry and XUV spectroscopy

  1. 1.
    0584825 - FZÚ 2025 RIV US eng J - Článek v odborném periodiku
    Singh, R. L. - Stehlé, C. - Kozlová, M. - Cotelo, M. - Dostál, Jan - Dudžák, Roman - Rodriguez, R. - Velarde, P. - Barroso, P. - Suzuki-Vidal, F. - Pisarczyk, T.
    Study of radiative shocks using 2D interferometry and XUV spectroscopy.
    Physics of Plasmas. Roč. 31, č. 3 (2024), č. článku 033301. ISSN 1070-664X. E-ISSN 1089-7674
    Grant CEP: GA MŠMT(CZ) LM2023068
    Institucionální podpora: RVO:68378271
    Klíčová slova: PALS facility * radiative shocks * 2D interferometry * XUV spectroscopy
    Obor OECD: Optics (including laser optics and quantum optics)
    Impakt faktor: 2.2, rok: 2022
    Způsob publikování: Open access

    We report new experimental results on radiative shocks obtained in Xenon and Argon in gas cells at two different pressures below 1 bar. These shock waves are generated by the interaction of the PALS iodine laser on a CH–Au foil with a typical velocity in the range of 50–100 km/s depending on the variable laser intensity, pressure, and gas. Attention is paid to the morphology and the dynamics of the radiative precursor over large time scales up to 30 ns, using 2D sub-picosecond visible interferometry, illustrating the complex interplay of hydrodynamic and radiation absorption for different initial conditions. The comparison between 1D and 2D simulations confirms the role played by lateral radiative losses in the ionization wave and the necessity of state-of-the-art integrated opacities. This study is complemented by the first XUV analysis of the shock emission between 5 and 20 nm obtained with a grating spectrometer.
    Trvalý link: https://hdl.handle.net/11104/0353412

     
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