Neutrons vs. X rays: A comparison of reconstruction of neutron images to X-ray images of asymmetric direct drive implosions

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We have performed an experiment using controlled drive asymmetry in order to explore the relationship between asymmetry and mix. It is seen that X rays image the shell material of an ICF implosion; knowledge of the burning core requires high-resolution neutron images. It is only recently that this has become a practical reality. We present results of asymmetric implosions (spherical, prolate, and oblate), using a pinhole neutron imaging system. A reconstruction technique is demonstrated that increases resolution by mathematical means.2 Simulations are used to show reliability of the technique. The results are compared to three-dimensional information from multiple X-ray camera … continued below

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15 p.

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Christensen, Cindy R.; Barnes, Christopher, W.; Wilson, Douglas C.; Wilke, Mark D.; Ebey, Peter S.; Gobby, Peter L. et al. January 1, 2002.

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We have performed an experiment using controlled drive asymmetry in order to explore the relationship between asymmetry and mix. It is seen that X rays image the shell material of an ICF implosion; knowledge of the burning core requires high-resolution neutron images. It is only recently that this has become a practical reality. We present results of asymmetric implosions (spherical, prolate, and oblate), using a pinhole neutron imaging system. A reconstruction technique is demonstrated that increases resolution by mathematical means.2 Simulations are used to show reliability of the technique. The results are compared to three-dimensional information from multiple X-ray camera views, and to experimentally achieved beam symmetry.

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15 p.

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  • Submitted to: APS DPP Meeting, Orlando, Florida, November 4-8, 2002

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  • Report No.: LA-UR-02-6816
  • Office of Scientific & Technical Information Report Number: 976420
  • Archival Resource Key: ark:/67531/metadc934158

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  • January 1, 2002

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  • Nov. 13, 2016, 7:26 p.m.

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  • Oct. 20, 2020, 11:27 p.m.

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Christensen, Cindy R.; Barnes, Christopher, W.; Wilson, Douglas C.; Wilke, Mark D.; Ebey, Peter S.; Gobby, Peter L. et al. Neutrons vs. X rays: A comparison of reconstruction of neutron images to X-ray images of asymmetric direct drive implosions, article, January 1, 2002; United States. (https://digital.library.unt.edu/ark:/67531/metadc934158/: accessed April 23, 2024), University of North Texas Libraries, UNT Digital Library, https://digital.library.unt.edu; crediting UNT Libraries Government Documents Department.

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