25 September 1995 Measurement by XUV laser radiography of hydrodynamic perturbations in laser-accelerated thin foil targets
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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.
© (1995) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Michael H. Key, Michael H. Key, D. H. Kalantar, D. H. Kalantar, Troy W. Barbee, Troy W. Barbee, Luiz Barroca Da Silva, Luiz Barroca Da Silva, S. Gail Glendinning, S. Gail Glendinning, James P. Knauer, James P. Knauer, Bruce A. Remington, Bruce A. Remington, Franz A. Weber, Franz A. Weber, Stephen V. Weber, Stephen V. Weber, } "Measurement by XUV laser radiography of hydrodynamic perturbations in laser-accelerated thin foil targets", Proc. SPIE 2520, Soft X-Ray Lasers and Applications, (25 September 1995); doi: 10.1117/12.221643; https://doi.org/10.1117/12.221643
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