2D MHD simulation of spontaneous magnetic fields generated during interaction of 1315.2-nm laser radiation with copper slabs at 10.sup.16./sup. W/cm.sup.2./sup.

0546214 - FZÚ 2022 RIV US eng J - Journal Article
Jach, K. - Pisarczyk, T. - Stepniewski, W. - Świerczynski, R. - Krása, Josef - Chodukowski, T. - Rusiniak, Z. - Zaraś-Szydłowska, A. - Dostál, Jan - Dudžák, Roman - Juha, Libor - Kochetkov, Iu. - Krupka, Michal - Borodziuk, S.
2D MHD simulation of spontaneous magnetic fields generated during interaction of 1315.2-nm laser radiation with copper slabs at 10¹⁶ W/cm².
Physics of Plasmas. Roč. 28, č. 9 (2021), č. článku 092704. ISSN 1070-664X. E-ISSN 1089-7674
R&D Projects: GA MŠMT(CZ) LM2018114; GA MŠMT LTT17015
EU Projects: European Commission(XE) 654148 - LASERLAB-EUROPE
Institutional support: RVO:68378271
Keywords : laser produced plasma * 2D multidimensional modeling * interaction of 1315.2-nm laser radiation * magnetic fields generation
OECD category: Optics (including laser optics and quantum optics)
Impact factor: 2.357, year: 2021
Method of publishing: Open access

Multidimensional modeling of phenomena and processes occurring during the expansion of the laser-produced plasma for different irradiation conditions related to both the laser beam parameters and the target constructions is a very complex issue. The paper attempts to interpret the results of the spontaneous magnetic field (SMF) measurements obtained during the PALS (Prague Asterix Laser System) experiment based on the 2D magneto-hydrodynamic (MHD) model. The MHD equations were used with included arbitrary (i) current of hot electrons treating it as an additional external current and (ii) ion-sound instability responsible for the increase in anomalous resistance in areas with high temperature and low-density plasma. The spatial distribution of magnetic fields and current density obtained from 2D modeling are in acceptable agreement with the experimental results.
Permanent Link: http://hdl.handle.net/11104/0322763