Fielding the NIF Cryogenic Ignition Target

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The United States Department of Energy has embarked on a campaign to conduct credible fusion ignition experiments on the National Ignition Facility (NIF) at the Lawrence Livermore National Laboratory in 2010. The target assembly specified for this campaign requires the formation of a deuterium/tritium (DT) fuel ice layer on the inside of a 2 millimeter diameter capsule positioned at the center of a 9 millimeter long by 5 millimeter diameter cylinder, called a hohlraum. The ice layer requires micrometer level accuracy and must be formed and maintained at temperatures below 19 K. At NIF shot time, the target must be ... continued below

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PDF-file: 10 pages; size: 0.7 Mbytes

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Malsbury, T; Haid, B; Gibson, C; Atkinson, D; Skulina, K; Klingmann, J et al. February 28, 2008.

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Description

The United States Department of Energy has embarked on a campaign to conduct credible fusion ignition experiments on the National Ignition Facility (NIF) at the Lawrence Livermore National Laboratory in 2010. The target assembly specified for this campaign requires the formation of a deuterium/tritium (DT) fuel ice layer on the inside of a 2 millimeter diameter capsule positioned at the center of a 9 millimeter long by 5 millimeter diameter cylinder, called a hohlraum. The ice layer requires micrometer level accuracy and must be formed and maintained at temperatures below 19 K. At NIF shot time, the target must be positioned at the center of the NIF 10 meter diameter target chamber, aligned to the laser beam lines and held stable to less than 7 micrometers rms. We have completed the final design and are integrating the systems necessary to create, characterize and field the cryogenic target for ignition experiments. These designs, with emphasis on the challenges of fielding a precision cryogenic positioning system will be presented.

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PDF-file: 10 pages; size: 0.7 Mbytes

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  • Presented at: European Society for Precision Engineering and Nanotechnology 10th Anniversary International Conference, zurich, Switzerland, May 18 - May 22, 2008

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  • Report No.: LLNL-PROC-401781
  • Grant Number: W-7405-ENG-48
  • Office of Scientific & Technical Information Report Number: 945155
  • Archival Resource Key: ark:/67531/metadc894901

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  • February 28, 2008

Added to The UNT Digital Library

  • Sept. 27, 2016, 1:39 a.m.

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  • Nov. 28, 2016, 3:31 p.m.

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Malsbury, T; Haid, B; Gibson, C; Atkinson, D; Skulina, K; Klingmann, J et al. Fielding the NIF Cryogenic Ignition Target, article, February 28, 2008; Livermore, California. (digital.library.unt.edu/ark:/67531/metadc894901/: accessed September 20, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.