Experiments for the Validation of Debris and Shrapnel Calculations

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The debris and shrapnel generated by laser targets are important factors in the operation of a large laser facility such as NIF, LMJ, and Orion. Past experience has shown that it is possible for such target debris to render diagnostics inoperable and also to penetrate or damage optical protection (debris) shields. We are developing the tools to allow evaluation of target configurations in order to better mitigate the generation and impact of debris, including development of dedicated modeling codes. In order to validate these predictive simulations, we briefly describe a series of experiments aimed at determining the amount of debris ... continued below

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6 p. (0.5 MB)

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Koniges, A. E.; Andrew, J.; Eder, D.; Kalantar, D.; Masters, N.; Fisher, A. et al. August 29, 2007.

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The debris and shrapnel generated by laser targets are important factors in the operation of a large laser facility such as NIF, LMJ, and Orion. Past experience has shown that it is possible for such target debris to render diagnostics inoperable and also to penetrate or damage optical protection (debris) shields. We are developing the tools to allow evaluation of target configurations in order to better mitigate the generation and impact of debris, including development of dedicated modeling codes. In order to validate these predictive simulations, we briefly describe a series of experiments aimed at determining the amount of debris and/or shrapnel produced in controlled situations. We use glass and aerogel to capture generated debris/shrapnel. The experimental targets include hohlraums (halfraums) and thin foils in a variety of geometries. Post-shot analysis includes scanning electron microscopy and x-ray tomography. We show the results of some of these experiments and discuss modeling efforts.

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6 p. (0.5 MB)

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PDF-file: 6 pages; size: 0.5 Mbytes

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  • Presented at: IFSA Conference, Kobe, Japan, Sep 09 - Sep 14, 2007

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  • Report No.: UCRL-CONF-234440
  • Grant Number: W-7405-ENG-48
  • Office of Scientific & Technical Information Report Number: 917885
  • Archival Resource Key: ark:/67531/metadc890416

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Office of Scientific & Technical Information Technical Reports

Reports, articles and other documents harvested from the Office of Scientific and Technical Information.

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  • August 29, 2007

Added to The UNT Digital Library

  • Sept. 22, 2016, 2:13 a.m.

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  • April 17, 2017, 12:56 p.m.

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Koniges, A. E.; Andrew, J.; Eder, D.; Kalantar, D.; Masters, N.; Fisher, A. et al. Experiments for the Validation of Debris and Shrapnel Calculations, article, August 29, 2007; Livermore, California. (digital.library.unt.edu/ark:/67531/metadc890416/: accessed September 18, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.