Neutron source reconstruction from one-dimensional imager of neutrons at the z facility
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Ricketts, Sidney Austin↗
Engineering topics
Ricketts, Sidney Austin
Publications and source records attributed to Ricketts, Sidney Austin.
Neutron Source Reconstruction of One-Dimensional Imager of Neutrons at the Z Facility
Explore the source record for details and available documents.
Ricketts, Sidney Austin↗
Neutron source reconstruction using a generalized expectation–maximization algorithm on one-dimensional neutron images from the Z facility
Magnetized Liner Inertial Fusion experiments have been performed at the Z facility at Sandia National Laboratories. These experiments use deuterium fuel, which produces 2.45 MeV neutrons on reaching thermonuclear conditions. To study the spatial structure of neutron production, the one-dimensional imager of neutrons diagnostic was fielded to record axial resolved neutron images. In this diagnostic, neutrons passing through a rolled edge aperture form an image on a CR-39-based solid state nuclear track detector. In this report we present a modified generalized expectation–maximization algorithm to reconstruct an axial neutron emission profile of the stagnated fusion plasma. We validate the approach by comparing the reconstructed neutron emission profile to an x-ray emission profile provided by a time-integrated pinhole camera.
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