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Optical emission from Al target irradiated by FLASH
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SYSNO ASEP 0487474 Document Type C - Proceedings Paper (int. conf.) R&D Document Type Conference Paper Title Optical emission from Al target irradiated by FLASH Author(s) Stránský, Michal (FZU-D)
Rohlena, Karel (FZU-D) RIDNumber of authors 2 Article number 012008 Source Title Journal of Physics: Conference Series, 508. - Bristol : IOP Publishing, 2014 - ISSN 1742-6588 Pages s. 1-5 Number of pages 5 s. Publication form Print - P Action Plasma Physics by Laser and Applications 2013 Conference (PPLA2013) Event date 02.10.2013 - 04.10.2013 VEvent location Lecce Country IT - Italy Event type WRD Language eng - English Country US - United States Keywords aluminum ; optical emission spectroscopy Subject RIV BL - Plasma and Gas Discharge Physics OECD category Fluids and plasma physics (including surface physics) R&D Projects EE.2.3.20.0087 GA MŠMT - Ministry of Education, Youth and Sports (MEYS) GAP205/11/0571 GA ČR - Czech Science Foundation (CSF) Institutional support FZU-D - RVO:68378271 UT WOS 000336256200008 EID SCOPUS 84901482496 DOI 10.1088/1742-6596/508/1/012008 Annotation The following text touches on some peculiarities in optical emission spectroscopy results from experiments on the free-electron laser FLASH. Aluminum targets were irradiated with 13.5 nm ~25 fs pulses at intensities of 1013 and 1016 W/cm2 (20 and 1µm foci). Surprisingly, only neutral atom lines for the case with wider focus and traces of ion lines in the tighter focus case were observed with the optical emission spectroscopy (200-600 nm range). The motivating idea behind this work is the suggestion by Zastrau that the optical spectrometer sees only emissions from a cold expanding lower-density (< 1022 cm-3) plasma plume. In this contribution the notion of UV range screening is analyzed in detail.
Workplace Institute of Physics Contact Kristina Potocká, potocka@fzu.cz, Tel.: 220 318 579 Year of Publishing 2018
Number of the records: 1