K-shell spectroscopic diagnosis of suprathermal electrons at fusion-relevant environmental conditions

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F16%3A00487462" target="_blank" >RIV/68378271:_____/16:00487462 - isvavai.cz</a>
Result on the web
<a href="http://dx.doi.org/10.1088/1742-6596/688/1/012091" target="_blank" >http://dx.doi.org/10.1088/1742-6596/688/1/012091</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1088/1742-6596/688/1/012091" target="_blank" >10.1088/1742-6596/688/1/012091</a>

Result language
angličtina
Original language name
K-shell spectroscopic diagnosis of suprathermal electrons at fusion-relevant environmental conditions
Original language description
Fast-electron-induced changes in the ion charge distribution lead to a substantial modification of radiative properties of x-ray emitting systems. We report Cu K-shell spectra emitted from 1.5-mu m-thick Cu foils irradiated by laser intensities up to 5x10(16) W/cm(2) using the fundamental and frequency tripled radiation of the Prague iodine laser system PALS, i.e., at conditions characteristic for laser spikes anticipated in the shock ignition scheme. The emission of the lower-ionization-stage ions observed as a fine structure merged with the Cu K alpha(1,2) doublet and spectral lines corresponding to transitions in He-like to Ne-like Cu atoms were identified. The spectra analysis based on a combination of MULTI2D hydrodynamic modelling of the plasma evolution and its emissivity synthesized by collisional-radiative code FLYCHK provides information on distribution of hot electron fractions at low plasma temperatures. The procedure used for interpretation of experimental data contributes to a development of alternative methods for diagnosis of suprathermal electrons.
Czech name
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Czech description
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Project
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year
2016
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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