Experimental Study Of Unresolved Transition Arrays In Laser-Produced Plasmas: Application To Plasma Diagnosis

Nathalie Tragin; Jean-Paul Geindre; Claude Chenais-Popovics; Jean-Claude Gauthier; M. Klapisch

doi:10.1117/12.961821

27 November 1989 Experimental Study Of Unresolved Transition Arrays In Laser-Produced Plasmas: Application To Plasma Diagnosis

Nathalie Tragin, Jean-Paul Geindre, Claude Chenais-Popovics, Jean-Claude Gauthier, M. Klapisch

Author Affiliations +

Proceedings Volume 1140, X-Ray Instrumentation in Medicine and Biology, Plasma Physics, Astrophysics, and Synchrotron Radiation; (1989) https://doi.org/10.1117/12.961821
Event: 1989 International Congress on Optical Science and Engineering, 1989, Paris, France

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.

Citation Download Citation

Nathalie Tragin, Jean-Paul Geindre, Claude Chenais-Popovics, Jean-Claude Gauthier, and M. Klapisch "Experimental Study Of Unresolved Transition Arrays In Laser-Produced Plasmas: Application To Plasma Diagnosis", Proc. SPIE 1140, X-Ray Instrumentation in Medicine and Biology, Plasma Physics, Astrophysics, and Synchrotron Radiation, (27 November 1989); https://doi.org/10.1117/12.961821

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