New probing techniques of radiative shocks

0390827 - FZÚ 2013 RIV NL eng J - Článek v odborném periodiku
Stehle, Ch. - Kozlová, Michaela - Larour, J. - Nejdl, Jaroslav - Champion, N. - Barroso, P. - Suzuki-Vidal, F. - Acef, O. - Delattre, P.A. - Dostál, Jan - Krůs, Miroslav - Chieze, J.P.
New probing techniques of radiative shocks.
Optics Communications. Roč. 285, č. 1 (2012), s. 64-69. ISSN 0030-4018. E-ISSN 1873-0310
Grant CEP: GA MŠMT(CZ) 7E08099; GA MŠMT(CZ) 7E09092; GA ČR GA202/08/1734
Grant ostatní: AVČR(CZ) M100100911
Institucionální podpora: RVO:68378271
Klíčová slova: X-ray lasers * shock waves * plasmas
Kód oboru RIV: BL - Fyzika plazmatu a výboje v plynech
Impakt faktor: 1.438, rok: 2012

Radiative shock waves propagating in xenon at a low pressure have been produced using 60 joules of iodine laser (λ = 1.315 μm) at PALS center. The shocks have been probed by XUV imaging using a Zn X-raylaser (λ = 21 nm) generated with a 20-ns delay after the shock creating pulse. Auxiliary high-speed silicon diodes allowed performing space- and time-resolved measurement of plasma self-emission in the visible and XUV. The results show the generation of a shock wave propagating at 60 km/s preceded by a radiative precursor. This demonstrates the feasibility of radiative shock generation using high power infrared lasers and the use of XRL backlighting as a suitable diagnostic for shock imaging.
Trvalý link: http://hdl.handle.net/11104/0219701