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Title: Argon K-shell and bound-free emission from OMEGA direct-drive implosion cores
Authors: Florido, R. 
Mancini, R. C.
Nagayama, T.
Tommasini, R.
Delettrez, J. A.
Regan, S. P.
Smalyuk, V. A.
Rodriguez, R. 
Gil, J. M. 
UNESCO Clasification: 220410 Física de plasmas
Keywords: X-ray spectroscopy
Spectral modeling
Plasma diagnostics
Issue Date: 2010
Publisher: 1574-1818
Project: Código-Interfaz de Cálculo de Propiedades Radiativas y de Diagnósis de Gran Variedad de Plasmas de Interés Actual. 
Journal: High Energy Density Physics 
Abstract: We discuss calculations of synthetic spectra for the interpretation and analysis of K-shell and bound-free emission from argon-doped deuterium-filled OMEGA direct-drive implosion cores. The spectra are computed using a model that considers collisional-radiative atomic kinetics, continuum-lowering, detailed Stark-broadened line shapes, line overlapping, and radiation transport effects. The photon energy range covers the moderately optically thick n = 3 → n = 1 and n = 4 → n = 1 line transitions in He- and H-like Ar, their associated satellite lines in Li- and He-like Ar, and several radiative recombination edges. At the high-densities characteristic of implosion cores, the radiative recombination edges substantially shift to lower energies thus overlapping with several line transitions. We discuss the application of the spectra to spectroscopic analysis of doped implosion cores
ISSN: 1574-1818
DOI: 10.1016/j.hedp.2009.06.011
Source: High Energy Density Physics[ISSN 1574-1818],v. 6 (1), p. 70-75
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