Investigation of spontaneous magnetic fields generated under different regimes of laser-produced plasma creation

0474085 - ÚFP 2018 RIV PT eng C - Konferenční příspěvek (zahraniční konf.)
Pisarczyk, T. - Gus'kov, S. - Dudžák, Roman - Chodukowski, T. - Dostál, Jan - Demchenko, N.N. - Korneev, P. - Kalinowska, Z. - Kalal, M. - Renner, Oldřich - Šmíd, Michal - Borodziuk, S. - Krouský, Eduard - Ullschmied, Jiří - Hřebíček, Jan - Medřík, Tomáš - Golasowski, Jiří - Pfeifer, Miroslav - Skála, Jiří - Pisarczyk, P.
Investigation of spontaneous magnetic fields generated under different regimes of laser-produced plasma creation.
EPS 2015:42nd European Physical Society Conference on Plasma Physics. Vol. 39E. Mulhouse: European Physical Society, 2015, č. článku P1.214. Europhysics Conference Abstracts, ECA, 39E. ISBN 2-914771-98-3.
[EPS 2015 Conference on Plasma Physics/42./. Lisbon (PT), 22.06.2015-26.06.2015]
Grant CEP: GA MŠMT LM2010014
Institucionální podpora: RVO:61389021 ; RVO:68378271
Klíčová slova: PALS * Two-channel polaro-interferometer * spontaneous magnetic fields (SPM)
Obor OECD: Fluids and plasma physics (including surface physics); Fluids and plasma physics (including surface physics) (FZU-D)

The proposed investigations represent a continuation of experiments related to the shock ignition concept of the inertial fusion implementation. These experiments were initiated at PALS within a frame of the previous LaserLab project where the femtosecond interferometry was used as the main diagnostic. This diagnosis proved to be very useful for studying absorption mechanisms of the laser radiation – it definitely confirmed a presence of resonance absorption in the case of the first harmonic and its influence on the laser energy transport to a shock wave generated in target.
In contrast to previous measurements, the polaro-interferometer enabling simultaneous measurements of the magnetic field and the electron density distribution will be implemented. The main aim of the proposed research will be a mapping of the magnetic field distribution at different times of the laser pulse interaction with a target, depending on the wavelength (1st or 3rd harmonic) and energy of the PALS laser used and dimensions of the focal spot radius of the laser beam at the target.
The experimental results will be interpreted using 2D magnetohydrodynamic codes developed by theoretical group from the Lebedev Physical Institute in Moscow and CELIA group at the University of Bordeaux.


Trvalý link: http://hdl.handle.net/11104/0271204