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Title: On three-dimensional reconstruction of a neutron/x-ray source from very few two-dimensional projections

The neutron imaging system at the National Ignition Facility is an important diagnostic tool for measuring the two-dimensional size and shape of the source of neutrons produced in the burning deuterium-tritium plasma during the stagnation phase of inertial confinement fusion implosions. Very few two-dimensional projections of neutron images are available to reconstruct the three-dimensional neutron source. In this paper, we present a technique that has been developed for the 3D reconstruction of neutron and x-ray sources from a minimal number of 2D projections. We present the detailed algorithms used for this characterization and the results of reconstructed sources from experimental data collected at Omega.
Authors:
; ; ; ;  [1]
  1. Los Alamos National Laboratory, Los Alamos, New Mexico 87544 (United States)
Publication Date:
OSTI Identifier:
22492989
Resource Type:
Journal Article
Resource Relation:
Journal Name: Journal of Applied Physics; Journal Volume: 118; Journal Issue: 20; Other Information: (c) 2015 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; ALGORITHMS; D-T OPERATION; EXPERIMENTAL DATA; IMPLOSIONS; INERTIAL CONFINEMENT; NEUTRON SOURCES; OMEGA FACILITY; PLASMA; THREE-DIMENSIONAL CALCULATIONS; TWO-DIMENSIONAL CALCULATIONS; US NATIONAL IGNITION FACILITY; X-RAY SOURCES