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Polychromatic X-ray Micro- and Nano-Beam Science and Instrumentation

Journal Article · · AIP Conference Proceedings
DOI:https://doi.org/10.1063/1.2436302· OSTI ID:21049263
; ; ; ; ; ; ;  [1]; ; ; ;  [2]
  1. Materials Science and Technology Division, Oak Ridge National Laboratory, Oak Ridge TN 37831-6118 (United States)
  2. Advanced Photon Source, Argonne National Laboratory, 9700 S. Cass Ave. Argonne Il 60439 (United States)
Polychromatic x-ray micro- and nano-beam diffraction is an emerging nondestructive tool for the study of local crystalline structure and defect distributions. Both long-standing fundamental materials science issues, and technologically important questions about specific materials systems can be uniquely addressed. Spatial resolution is determined by the beam size at the sample and by a knife-edge technique called differential aperture microscopy that decodes the origin of scattering from along the penetrating x-ray beam. First-generation instrumentation on station 34-ID-E at the Advanced Photon Source (APS) allows for nondestructive automated recovery of the three-dimensional (3D) local crystal phase and orientation. Also recovered are the local elastic-strain and the dislocation tensor distributions. New instrumentation now under development will further extend the applications of polychromatic microdiffraction and will revolutionize materials characterization.
OSTI ID:
21049263
Journal Information:
AIP Conference Proceedings, Journal Name: AIP Conference Proceedings Journal Issue: 1 Vol. 879; ISSN APCPCS; ISSN 0094-243X
Country of Publication:
United States
Language:
English