Original title: Sub-Nanosecond Laser Induced Plasma as Water Window Radiation Source.
Authors: Vrbová, M. ; Vrba, Pavel
Document type: Papers
Conference/Event: International Workshop on Frontiers of X&XUV Optics and its Applications 2017, 3rd IW FX & XUVOA /3./, Prague (CZ), 20171004
Year: 2017
Language: eng
Abstract: Laser plasma created in a krypton gas puff target is studied as a source of radiation in the water window spectral range (lambda= 2.3 - 4.4 nm). The spatial development of the plasma induced by a sub-nanosecond Nd:YAG laser pulse focused on the gas puff target is modeled using 2d RMHD code Z*. Space-time distributions of plasma quantities, namely electron temperature, electron density, mass density and plasma expansion velocity were evaluated. Instantaneous spectra during the laser pulse and during plasma decay period are also calculated. Temporal evolutions of the krypton ions relative populations prove that ions from Kr21+ and Kr22+ are responsible for dominant spectral intensity emitted at a wavelength around lambda= 3 nm. Evaluated time resolved spectra are compared with time integrated spectra obtained experimentally.
Keywords: gas puff; laser plasma water window sources; RMHD simulations
Project no.: LG15013 (CEP)
Funding provider: GA MŠk
Host item entry: Proceedings of the 3rd International Workshop on Frontiers of X&XUV Optics and its Applications, 3rd IW FX & XUVOA, ISBN 978-80-870026-09-0

Institution: Institute of Plasma Physics AS ČR (web)
Document availability information: Fulltext is available at the institute of the Academy of Sciences.
Original record: http://hdl.handle.net/11104/0276077

Permalink: http://www.nusl.cz/ntk/nusl-371427


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Research > Institutes ASCR > Institute of Plasma Physics
Conference materials > Papers