High Power Laser Science and Engineering, 2018, 6 (3): 03000e43, Published Online: Aug. 28, 2018  

Experimental platform for the investigation of magnetized-reverse-shock dynamics in the context of POLAR Download: 600次

Author Affiliations
1 LULI - CNRS, Ecole Polytechnique, CEA: Université Paris-Saclay; UPMC Univ Paris 06: Sorbonne Universités - F-91128 Palaiseau cedex, France
2 CEA-DAM-DIF, F-91297 Arpajon, France
3 CEA Saclay, DSM/Irfu/Service d’Astrophysique, F-91191 Gif-sur-Yvette, France
4 Helmholtz-Zentrum Dresden – Rossendorf HZDR, Bautzner Landstraße 400, 01328 Dresden, Germany
5 Department of Atmospheric, Oceanic, and Space Sciences, University of Michigan, Ann Arbor, MI 48109, USA
6 Graduate School of Engineering, Osaka University, Suita, Osaka 565-0871, Japan
7 JIHT-RAS, 13-2 Izhorskaya st., Moscow 125412, Russia
8 National Research Nuclear University MEPhI, Moscow 115409, Russia
9 Department of Physics, University of Oxford, Parks Road, Oxford OX1 3PU, UK
10 Institute of Laser Engineering, Osaka University, Suita, Osaka 565-0871, Japan
11 LUTH, Observatoire de Paris, UMR CNRS 8102, Université Paris Diderot, 92190 Meudon, France
12 Department of Energy Engineering Science, Faculty of Engineering Sciences, Kyushu University, Japan
13 General Atomics, San Diego, CA 92121, USA
14 Plasma Science and Fusion Center, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, MA 02139, USA
15 Flash Center for Computational Science, University of Chicago, IL 60637, USA
Abstract
The influence of a strong external magnetic field on the collimation of a high Mach number plasma flow and its collision with a solid obstacle is investigated experimentally and numerically. The laser irradiation () of a multilayer target generates a shock wave that produces a rear side plasma expanding flow. Immersed in a homogeneous 10 T external magnetic field, this plasma flow propagates in vacuum and impacts an obstacle located a few mm from the main target. A reverse shock is then formed with typical velocities of the order of 15–20 5 km/s. The experimental results are compared with 2D radiative magnetohydrodynamic simulations using the FLASH code. This platform allows investigating the dynamics of reverse shock, mimicking the processes occurring in a cataclysmic variable of polar type.

B. Albertazzi, E. Falize, A. Pelka, F. Brack, F. Kroll, R. Yurchak, E. Brambrink, P. Mabey, N. Ozaki, S. Pikuz, L. Van Box Som, J. M. Bonnet-Bidaud, J. E. Cross, E. Filippov, G. Gregori, R. Kodama, M. Mouchet, T. Morita, Y. Sakawa, R. P. Drake, C. C. Kuranz, M. J.-E. Manuel, C. Li, P. Tzeferacos, D. Lamb, U. Schramm, M. Koenig. Experimental platform for the investigation of magnetized-reverse-shock dynamics in the context of POLAR[J]. High Power Laser Science and Engineering, 2018, 6(3): 03000e43.

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