Speaker
Jan Nikl
Description
See the full Abstract at http://ocs.ciemat.es/EPS2018ABS/pdf/P1.2019.pdf
Simulations of the laser–target interaction under the non-local energy
transport conditions with high-order numerical methods
Jan Nikl1,2 , M. Kuchařík2 , M. Holec3 , and S. Weber1
1 ELI-Beamlines, Institute of Physics, Academy of Sciences of the Czech Republic, 18221
Prague, Czech Republic
2 Faculty of Nuclear Sciences and Physical Engineering, Czech Technical University, 11519
Prague, Czech Republic
3 Centre Lasers Intenses et Applications, Université de Bordeaux-CNRS-CEA, UMR 5107,
F-33405 Talence, France
The laser–target interaction for intensities . 1015 W/cm2 takes place under the non-local en-
ergy transport conditions in many cases [1]. The mean free paths of the transported species are
longer than the characteristic lengths in the plasma given by the temperature gradients. Clas-
sical hydrodynamic codes do not cover this important phenomenon or only low order numeri-
cal methods are used for the macroscopic description, having insufficient numerical accuracy.
These conditions of the interaction have crucial relevance for the PW class laser systems, where
such intensities are reached by the main pulse in the context of ICF [2] or they appear in the
prepulses of the ultra-high intensity pulses [3]. A combination of high-order numerical meth-
ods, including fully non-local description of the heat and radiation transport, is used here to
treat properly these conditions. The simulations under typical physical scenarios for the laser
facilities are performed and important effects are emphasized.
References
[1] A. V. Brantov and V. Yu. Bychenkov. Nonlocal transport in hot plasma. Part I. Plasma Physics Reports,
39(9):698–744, 2013.
[2] D. Batani, L. Antonelli, G. Folpini, Y. Maheut, L. Giuffrida, G. Malka, Ph. Nicolai, X. Ribeyre, M. Richetta,
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M. Krus, O. Renner, M. Smid, E. Krousky, J. Skala, J. Ullschmied R. Dudzak, Ch. Spindloe, T. O’Dell, R.de
Angelis, F. Consoliand T. Vinci, M. Rosinski, J. Badziak an T. Pisarczyk, Z. Kalinowska, T. Chodukowski,
Y.J. Rhee, A. Marocchino, A. Schiavi, and S. Atzeni. Generation of high pressure shocks relevant to the
shock-ignition intensity regime. Phys. Plasmas, 21:032710, 2014.
[3] T. Zh. Esirkepov, J. Koga, A. Sunahara, T. Morita, M. Nishikino, K. Kageyama, H. Nagatomo, K. Nishi-
hara, A. Sagisaka, H. Kotaki, T. Nakamura, Y. Fukuda, H. Okada, A. S. Pirozhkov, A. Yogo, M. Nishiuchi,
H. Kiriyama, K. Kondo, M. Kando, and S. V. Bulanov. Prepulse and amplified spontaneous emission effects
on the interaction of a petawatt class laser with thin solid targets. Nucl. Instrum. Meth., 745:150, 2014.
