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Proceedings Paper

Experimental Study Of Unresolved Transition Arrays In Laser-Produced Plasmas: Application To Plasma Diagnosis
Author(s): Nathalie Tragin; Jean-Paul Geindre; Claude Chenais-Popovics; Jean-Claude Gauthier; M. Klapisch
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Paper Abstract

The spectra of multicharged ions produced by laser irradiation of high-Z materials have been obtained for a large number of elements at the LULI laser facility using 0.53 μm laser wavelength and 1013-1015 W/cm2 laser intensities. Measurements of the electron density and temperature have been performed in laser-irradiated gold targets using Stark broadening and relative intensities of H-like and He-like lines of aluminum mixed in gold with various dilutions. Gold transition array intensities were found in good agreement with the results of a detailed collisional-radiative model of Ni-like ion emission. A study of the position and intensity of the emission regions of He-like and H-like (Al) and Ni-like (Au) ions with increasing gold percentage show a steepening of the electron temperature gradient in agreement with 1D hydrocode calculations including radiation transport physics.

Paper Details

Date Published: 27 November 1989
PDF: 8 pages
Proc. SPIE 1140, X-Ray Instrumentation in Medicine and Biology, Plasma Physics, Astrophysics, and Synchrotron Radiation, (27 November 1989); doi: 10.1117/12.961821
Show Author Affiliations
Nathalie Tragin, Ecole Polytechnique (France)
Jean-Paul Geindre, Ecole Polytechnique (France)
Claude Chenais-Popovics, Ecole Polytechnique (France)
Jean-Claude Gauthier, Ecole Polytechnique (France)
M. Klapisch, The Hebrew University of Jerusalem (Israel)


Published in SPIE Proceedings Vol. 1140:
X-Ray Instrumentation in Medicine and Biology, Plasma Physics, Astrophysics, and Synchrotron Radiation

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