The influence of preformed plasma on a laser-driven shock produced in a planar target at the conditions relevant to shock ignition

0425526 - FZÚ 2014 RIV FR eng C - Conference Paper (international conference)
Badziak, J. - Chodukowski, T. - Kalinowska, Z. - Parys, P. - Pisarczyk, T. - Rączka, P. - Rosiński, M. - Ryc, L. - Wolowski, J. - Zaras, A. - Gizzi, L.A. - Baffigi, F. - Cristoforetti, G. - Koester, P. - Labate, L. - Antonelli, L. - Richetta, M. - Batani, D. - Folpini, G. - Malka, G. - Maheut, Y. - Krouský, Eduard - Pfeifer, Miroslav - Renner, Oldřich - Šmíd, Michal - Skála, Jiří - Ullschmied, Jiří - Kucharik, M. - Liska, R. - Rhee, Y.-J. - Consoli, F. - De Angelis, R. - Spindloe, C.
The influence of preformed plasma on a laser-driven shock produced in a planar target at the conditions relevant to shock ignition.
EPS 2013:40th European Physical Society Conference on Plasma Physics, Contributed Papers. Mulhouse: European Physical Society, 2013. Europhysics Conference Abstracts (ECA). ISBN 2-914771-84-3.
[EPS Conference on Plasma Physics/40./. Espoo (FI), 01.07.2013-05.07.2013]
EU Projects: European Commission(XE) 284464 - LASERLAB-EUROPE
Institutional support: RVO:68378271 ; RVO:61389021
Keywords : laser-matter interaction * shock ignition * shock waves * X-ray spectroscopy * plasma simulation * plasma interferometry * ion diagnostics
Subject RIV: BL - Plasma and Gas Discharge Physics
http://ocs.ciemat.es/EPS2013PAP/pdf/P2.203.pdf

The effect of preformed plasma on a laser-driven shock produced in a planar target at the conditions relevant to the shock ignition scenario of ICF was investigated at the kilojoule PALS laser facility. Characteristics of the preformed plasma were controlled by the delay between the auxiliary and the main beam, and characterized using 3-frame interferometry, ion diagnostics, X-ray spectroscopy and Kα imaging. Parameters of the shock produced in a CH(Cl) target by the intense laser pulse with energy ranging between 50 J and 200 J were determined by measuring the craters produced by the shock in a massive Cu target behind the layer of plastic. The volume and the shape of these craters was found to depend rather weakly on the preplasma thickness. From the comparison of the measured crater parameters with those obtained in 2D simulations using the PALE code, it was estimated that the pressure at the rear (non-irradiated) side of the plastic layer reaches about 100 Mbar.
Permanent Link: http://hdl.handle.net/11104/0231381