About: Influence of the number of atomic levels on the modelling of collisional X-ray lasers

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	The number of atomic excited levels considered in codes modelling X-ray lasers is generally very limited. A few dozens or even two or three are considered while thousands times more do exist. We compute populations, gain and spectra with tens of thousands of levels out of equilibrium to model a Zinc Ne-like X-ray laser. The maximum gain, its thermodynamic conditions as well as the transverse spectrum compare well with the experiment. The gain is marginally reduced for stationary plasmas when the number of levels increases. But the radiative losses are strongly enhanced for thick plasmas. For transient schemes, some neighbouring levels are strongly coupled with the lasing levels and will modify the solution of the Maxwell Bloch equations in case of seeding with high harmonics. The number of atomic excited levels considered in codes modelling X-ray lasers is generally very limited. A few dozens or even two or three are considered while thousands times more do exist. We compute populations, gain and spectra with tens of thousands of levels out of equilibrium to model a Zinc Ne-like X-ray laser. The maximum gain, its thermodynamic conditions as well as the transverse spectrum compare well with the experiment. The gain is marginally reduced for stationary plasmas when the number of levels increases. But the radiative losses are strongly enhanced for thick plasmas. For transient schemes, some neighbouring levels are strongly coupled with the lasing levels and will modify the solution of the Maxwell Bloch equations in case of seeding with high harmonics. (en)
Title	Influence of the number of atomic levels on the modelling of collisional X-ray lasers Influence of the number of atomic levels on the modelling of collisional X-ray lasers (en)
skos:prefLabel	Influence of the number of atomic levels on the modelling of collisional X-ray lasers Influence of the number of atomic levels on the modelling of collisional X-ray lasers (en)
skos:notation	RIV/68378271:_____/09:00334086!RIV10-AV0-68378271
http://linked.open...avai/riv/aktivita	P Z
http://linked.open...avai/riv/aktivity	P(GA202/08/1734), P(KAN300100702), Z(AV0Z10100523)
http://linked.open...vai/riv/dodaniDat	2010
http://linked.open...aciTvurceVysledku	Rus, Bedřich Nejdl, Jaroslav Kozlová, Michaela
http://linked.open.../riv/druhVysledku	D - Článek ve sborníku
http://linked.open...iv/duvernostUdaju	S - Úplné a pravdivé údaje nepodléhající ochraně podle zvláštních právních předpisů
http://linked.open...titaPredkladatele	Fyzikální ústav AV ČR, v. v. i.
http://linked.open...dnocenehoVysledku	319389
http://linked.open...ai/riv/idVysledku	RIV/68378271:_____/09:00334086
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	modelling of X-ray lasers; atomic levels; population; gain; spectra; transient schema (en)
http://linked.open.../riv/klicoveSlovo	population spectra atomic levels modelling of X-ray lasers transient schema gain
http://linked.open...ontrolniKodProRIV	[12ACE2AB8E7F]
http://linked.open...v/mistoKonaniAkce	Belfast
http://linked.open...i/riv/mistoVydani	Dordrecht
http://linked.open...i/riv/nazevZdroje	X-Ray Lasers 2008
http://linked.open...in/vavai/riv/obor	BH
http://linked.open...ichTvurcuVysledku	3 (xsd:int)
http://linked.open...cetTvurcuVysledku	8 (xsd:int)
http://linked.open...vavai/riv/projekt	Generation and characterisation of superdense warm dense matter plasmas with x-ray lasers Creating and probing nanostructures with X-ray lasers
http://linked.open...UplatneniVysledku	2009
http://linked.open...iv/tvurceVysledku	Kozlová, Michaela Nejdl, Jaroslav Rus, Bedřich Bar-Shalom, A. Busquet, M. Klapisch, M. Oreg, J. de Dortan, F.
http://linked.open...vavai/riv/typAkce	WRD - Světová
http://linked.open.../riv/zahajeniAkce	2008-08-17 (xsd:date)
http://linked.open...n/vavai/riv/zamer	Intense Radiation Sources and Radiation-Matter Interaction
number of pages	7 (xsd:int)
http://purl.org/ne...btex#hasPublisher	Springer-Verlag
https://schema.org/isbn	978-1-4020-9923-6

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