Inference of ICF Implosion Core Mix using Experimental Data and Theoretical Mix Modeling

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The mixing between fuel and shell materials in Inertial Confinement Fusion (ICF) implosion cores is a current topic of interest. The goal of this work was to design direct-drive ICF experiments which have varying levels of mix, and subsequently to extract information on mixing directly from the experimental data using spectroscopic techniques. The experimental design was accomplished using hydrodynamic simulations in conjunction with Haan's saturation model, which was used to predict the mix levels of candidate experimental configurations. These theoretical predictions were then compared to the mixing information which was extracted from the experimental data, and it was found that ... continued below

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PDF-file: 13 pages; size: 1.2 Mbytes

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Welser-Sherrill, L; Haynes, D A; Mancini, R C; Cooley, J H; Tommasini, R; Golovkin, I E et al. April 30, 2008.

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Description

The mixing between fuel and shell materials in Inertial Confinement Fusion (ICF) implosion cores is a current topic of interest. The goal of this work was to design direct-drive ICF experiments which have varying levels of mix, and subsequently to extract information on mixing directly from the experimental data using spectroscopic techniques. The experimental design was accomplished using hydrodynamic simulations in conjunction with Haan's saturation model, which was used to predict the mix levels of candidate experimental configurations. These theoretical predictions were then compared to the mixing information which was extracted from the experimental data, and it was found that Haan's mix model performed well in predicting trends in the width of the mix layer. With these results, we have contributed to an assessment of the range of validity and predictive capability of the Haan saturation model, as well as increased our confidence in the methods used to extract mixing information from experimental data.

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PDF-file: 13 pages; size: 1.2 Mbytes

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  • Journal Name: High Energy Density Physics, vol. 5, no. 4, December 1, 2009, pp. 249-257; Journal Volume: 5; Journal Issue: 4

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  • Report No.: LLNL-JRNL-404218
  • Grant Number: W-7405-ENG-48
  • Office of Scientific & Technical Information Report Number: 1010397
  • Archival Resource Key: ark:/67531/metadc832229

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  • April 30, 2008

Added to The UNT Digital Library

  • May 19, 2016, 3:16 p.m.

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  • Nov. 29, 2016, 3:19 p.m.

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Welser-Sherrill, L; Haynes, D A; Mancini, R C; Cooley, J H; Tommasini, R; Golovkin, I E et al. Inference of ICF Implosion Core Mix using Experimental Data and Theoretical Mix Modeling, article, April 30, 2008; Livermore, California. (digital.library.unt.edu/ark:/67531/metadc832229/: accessed August 17, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.