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Direct spectroscopic observation of ion deceleration accompanying laser plasma–wall interaction
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SYSNO ASEP 0352258 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Ostatní články Title Direct spectroscopic observation of ion deceleration accompanying laser plasma–wall interaction Author(s) Renner, Oldřich (FZU-D) RID, ORCID
Krouský, Eduard (FZU-D) RID
Liska, R. (CZ)
Šmíd, M. (CZ)
Larroche, O. (FR)
Dalimier, E. (FR)
Rosmej, F. (FR)Source Title Journal of Physics: Conference Series. - : Institute of Physics Publishing - ISSN 1742-6588
Roč. 244, č. 2 (2010), 022024/1-022024/4Number of pages 4 s. Language eng - English Country GB - United Kingdom Keywords plasma-wall interaction ; x-ray spectroscopy ; plasma diagnostics ; plasma simulations Subject RIV BL - Plasma and Gas Discharge Physics R&D Projects LC528 GA MŠMT - Ministry of Education, Youth and Sports (MEYS) GAP205/10/0814 GA ČR - Czech Science Foundation (CSF) CEZ AV0Z10100523 - FZU-D (2005-2011) DOI 10.1088/1742-6596/244/2/022024 Annotation Interactions of plasma jets with solid surfaces are studied in context with development of future fusion devices. In experiments carried out on the iodine laser system PALS, the energetic ions were produced at double-foil Al/Mg targets. The plasma jets from the laser-exploded Al foil streamed towards the secondary Mg target preheated by the action of the high-energy photons, particle and laser beams. The forward-accelerated Al ions collided with the counter-propagating matter ejected from the wall. The environmental conditions in near-wall plasmas were analyzed with the high-resolution x-ray spectroscopy and temporally-resolved x-ray imaging. The deceleration of the incident Al ions was quantitatively characterized via Doppler shifts of the J-satellite from the Al Ly_alpha spectral group. The interaction scenario was modelled using the 2D arbitrary Lagrangian Eulerian hydrocode PALE and the multifluid code MULTIF. Workplace Institute of Physics Contact Kristina Potocká, potocka@fzu.cz, Tel.: 220 318 579 Year of Publishing 2011
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