Simulation of Phase Effects in Imaging for Mesoscale NDE
- Lawrence Livermore National Laboratory, Livermore, CA 94551 (United States)
High energy density experiments, such as those planned at the National Ignition Facility (NIF), use mesoscale targets with the goals of studying high energy density physics, inertial confinement fusion, and the support of national security needs. Mesoscale targets are typically several millimeters in size and have complex micrometer-sized structures composed of high-density metals and low-density foams and ices. These targets are designed with exacting tolerances that are difficult to achieve at present. Deviation from these tolerances can result in compromise of experimental goals and thus it is necessary to determine as-built properties of these targets using NDE techniques. Radiography and computed tomography are being used to investigate these targets, but the mix between phase and absorption information is difficult to separate, making interpretation of results difficult. We have recently improved the HADES radiographic simulation code to include phase in simulations, as an aid for doing NDE on mesoscale targets. In this paper we report on how we extended HADES to incorporate phase effects, and compare simulations with a variety of experimental test results.
- OSTI ID:
- 20655382
- Journal Information:
- AIP Conference Proceedings, Vol. 760, Issue 1; Conference: Conference on review of progress in quantitative nondestructive evaluation, Golden, CO (United States), 25-30 Jul 2004; Other Information: DOI: 10.1063/1.1916739; (c) 2005 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 0094-243X
- Country of Publication:
- United States
- Language:
- English
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