Measurement by XUV laser radiography of hydrodynamic perturbations in laser accelerated thin foil targets

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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 10{sup 12} Wcm{sup {minus}2} intensity, simulating the initial phase of irradiation 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 ... continued below

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12 p.

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Key, M.H.; Kalantar, D.H. & Barbee, T.W. Jr. July 11, 1995.

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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 10{sup 12} Wcm{sup {minus}2} intensity, simulating the initial phase of irradiation 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.

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12 p.

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INIS; OSTI as DE95016632

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  • 40. annual meeting of the Society of Photo-Optical Instrumentation Engineers, San Diego, CA (United States), 9-14 Jul 1995

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  • Other: DE95016632
  • Report No.: UCRL-JC--121586
  • Report No.: CONF-950793--20
  • Grant Number: W-7405-ENG-48
  • Office of Scientific & Technical Information Report Number: 106582
  • Archival Resource Key: ark:/67531/metadc623069

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  • July 11, 1995

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  • June 16, 2015, 7:43 a.m.

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  • Feb. 23, 2016, 1:52 p.m.

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Key, M.H.; Kalantar, D.H. & Barbee, T.W. Jr. Measurement by XUV laser radiography of hydrodynamic perturbations in laser accelerated thin foil targets, article, July 11, 1995; California. (digital.library.unt.edu/ark:/67531/metadc623069/: accessed September 19, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.