Devloping High Energy Radiography for HED Experiments on NIF and Omega-EP

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High energy radiography capabilities are essential for many future DNT/HED experiments on NIF. We have been developing bright, high-energy (15-100 keV), high resolution (< 20 {micro}m), 1-D and 2-D radiography solutions for DNT experiments on NIF. In this LDRD, we have made significant progress utilizing high-energy, high-intensity, short-pulse lasers to generate hard K-{alpha} photons. High energy K-{alpha} sources are created by hot electrons interacting in the target fluor material after irradiation by lasers with intensity I{sub L} > 10{sup 17} W/cm{sup 2}. High resolution point projection 1-D and 2-D radiography have been achieved using {mu}-foil and {mu}-wire targets attached to ... continued below

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Maddox, B; Tommasini, R; Remington, B; Key, M & Town, R February 14, 2008.

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High energy radiography capabilities are essential for many future DNT/HED experiments on NIF. We have been developing bright, high-energy (15-100 keV), high resolution (< 20 {micro}m), 1-D and 2-D radiography solutions for DNT experiments on NIF. In this LDRD, we have made significant progress utilizing high-energy, high-intensity, short-pulse lasers to generate hard K-{alpha} photons. High energy K-{alpha} sources are created by hot electrons interacting in the target fluor material after irradiation by lasers with intensity I{sub L} > 10{sup 17} W/cm{sup 2}. High resolution point projection 1-D and 2-D radiography have been achieved using {mu}-foil and {mu}-wire targets attached to low-Z substrate materials. The {mu}-wire size was 10 x 10 x 300 {micro}m on a 300 x 300 x 5 {micro}m CH substrate creating the point source size equivalent to these micro targets. This unique technique will utilize the NIF short pulse laser (ARC) as a backlighter suitable for the full range of DNT science experiments on NIF.

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PDF-file: 15 pages; size: 1 Mbytes

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  • Report No.: LLNL-TR-401597
  • Grant Number: W-7405-ENG-48
  • DOI: 10.2172/926064 | External Link
  • Office of Scientific & Technical Information Report Number: 926064
  • Archival Resource Key: ark:/67531/metadc894723

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  • February 14, 2008

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  • Sept. 27, 2016, 1:39 a.m.

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  • Dec. 5, 2016, 2:14 p.m.

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Maddox, B; Tommasini, R; Remington, B; Key, M & Town, R. Devloping High Energy Radiography for HED Experiments on NIF and Omega-EP, report, February 14, 2008; Livermore, California. (digital.library.unt.edu/ark:/67531/metadc894723/: accessed December 13, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.