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Proceedings Paper

Measurement by XUV laser radiography of hydrodynamic perturbations in laser-accelerated thin foil targets
Author(s): Michael H. Key; D. H. Kalantar; Troy W. Barbee Jr.; Luiz Barroca Da Silva; S. Gail Glendinning; James P. Knauer; Bruce A. Remington; Franz A. Weber; Stephen V. Weber
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Paper Abstract

A novel diagnostic application of XUV lasers has been developed for the study of the hydrodynamic imprinting of laser speckle pattern on directly driven laser fusion targets. A neon-like yttrium laser operating at 15.5 nm is used to probe thin foils of Si irradiated with an SSD smoothed laser at 0.35 mm wavelength and 6 1012 Wcm-2 intensity, simulating the initial phase of irradiation of a laser fusion capsule. Measurements of the perturbations in target opacity are made by XUV radiography through the foil. The magnitude and Fourier composition of the perturbations has been determined both before and after Rayleigh Taylor growth, showing the mode spectra of both the initial imprint and the subsequent RT growth.

Paper Details

Date Published: 25 September 1995
PDF: 9 pages
Proc. SPIE 2520, Soft X-Ray Lasers and Applications, (25 September 1995); doi: 10.1117/12.221643
Show Author Affiliations
Michael H. Key, Lawrence Livermore National Lab., Rutherford Appleton Lab. (UK), and Univ. of Oxford (United States)
D. H. Kalantar, Lawrence Livermore National Lab. (United States)
Troy W. Barbee Jr., Lawrence Livermore National Lab. (United States)
Luiz Barroca Da Silva, Lawrence Livermore National Lab. (United States)
S. Gail Glendinning, Lawrence Livermore National Lab. (United States)
James P. Knauer, Univ. of Rochester (United States)
Bruce A. Remington, Lawrence Livermore National Lab. (United States)
Franz A. Weber, Lawrence Livermore National Lab. (United States)
Stephen V. Weber, Lawrence Livermore National Lab. (United States)

Published in SPIE Proceedings Vol. 2520:
Soft X-Ray Lasers and Applications
Jorge J. G. Rocca; Peter L. Hagelstein, Editor(s)

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