期刊
JOURNAL OF APPLIED CRYSTALLOGRAPHY
卷 46, 期 -, 页码 512-524出版社
INT UNION CRYSTALLOGRAPHY
DOI: 10.1107/S0021889813005268
关键词
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资金
- US Department of Energy, Office of Basic Energy Sciences, Division of Materials Sciences and Engineering [DESC0002001]
- National Science Foundation Metals and Metallic Nanostructures program [DMR-0805100]
- NSF MRSEC program [DMR-0520425]
- US Department of Energy, Office of Science, Office of Basic Energy Sciences [DE-AC02-06CH11357]
- National Science Foundation [DMR080072]
- Laboratory Directed Research and Development program [LDRD 10-ERD-053]
- US Department of Energy by Lawrence Livermore National Laboratory [DE-AC52-07NA27344 (LLNL-JRNL-577792)]
- Direct For Mathematical & Physical Scien
- Division Of Materials Research [1105173] Funding Source: National Science Foundation
An adaptive orientation reconstruction algorithm is developed for near-field high-energy X-ray diffraction microscopy. When combined with a spatially adaptive extension the algorithm results in a factor of 10-1000 speed-up over the existing forward modeling reconstruction method while preserving most of the spatial and orientation resolution characteristics. Tests of the reconstruction code based on simulated structures and real data on a complex microstructure are presented. Simulated structures include intra-granular orientation gradients and noisy detector images. It is shown that resolution in both real space and orientation space degrades gracefully as complexity and detector noise increase.
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