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 …
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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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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.