Plasma jets production at laser-burnt-through foils and their interaction with secondary targets

0425490 - FZÚ 2014 RIV AT eng C - Conference Paper (international conference)
Renner, Oldřich - Cihelka, Jaroslav - Juha, Libor - Krása, Josef - Krouský, Eduard - Nejdl, Jaroslav - Skála, Jiří - Velyhan, Andriy - Pisarczyk, T. - Chodukowski, T. - Kalinowska, Z. - Kasperczuk, A. - Pisarczyk, P. - Liska, R. - Šmíd, M. - Váchal, P. - Velechovský, J. - Ullschmied, Jiří
Plasma jets production at laser-burnt-through foils and their interaction with secondary targets.
Proceedings of the 5th International Conference on the Frontiers of Plasma Physics and Technology. Wien: IAEA, 2013. ISBN 978-92-0-193410-9. ISSN 1684-2073.
[International Conference on the Frontiers of Plasma Physics and Technology /5./. Singapore (SG), 18.04.2011-22.04.2011]
R&D Projects: GA MŠMT(CZ) LC528; GA ČR GAP205/10/0814
Institutional support: RVO:68378271 ; RVO:61389021
Keywords : laser-produced plasma * plasma jets * plasma-wall interaction * X-ray spectroscopy * interferometry * plasma simulation
Subject RIV: BL - Plasma and Gas Discharge Physics
http://www-pub.iaea.org/MTCD/Publications/PDF/TE-1713-CD/talks/Renner-paper.pdf

In experiments carried out on the iodine laser system PALS, interactions of plasma jets with solid surfaces are studied in context with phenomena accompanying the material erosion and migration at plasma facing components. The energetic ions were produced at burnt-through foils with low-to-high atomic numbers (Al, Ag, Ta). The formation of the outflow plasma was investigated using the three-frame interferometry, the observed density distribution was complemented by numerical modeling of the plasma parameters based on the Arbitrary Lagrangian Eulerian code PALE. The found optimum conditions for the jet production were used in a design of alternate experimental configurations. The interaction of the directional plasma flows with secondary targets was studied via x–ray imaging, optical and high–resolution x–ray spectroscopy. The examples of jet applications for investigating the transition phenomena at surfaces of plasma-exposed solids are presented.
Permanent Link: http://hdl.handle.net/11104/0231356