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Obtaining local reciprocal lattice vectors from finite element analysis

DOI: 10.1107/S090904950802801X DOI Help
PMID: 18955764 PMID Help

Authors: John Sutter (Diamond Light Source) , Thomas Connolley (Diamond Light Source) , Tim P. Hill (Diamond Light Source) , Doug W. Sharp (Diamond Light Source) , Michael Drakopoulos (Diamond Light Source) , Houcheng Huang (Diamond Light Source)
Co-authored by industrial partner: No

Type: Journal Paper
Journal: Journal Of Synchrotron Radiation , VOL 15 , PAGES 584-592

State: Published (Approved)
Published: November 2008

Abstract: Finite-element analysis is frequently used by engineers at synchrotron beamlines to calculate the elastic deformation of a single crystal undergoing mechanical bending or thermal load. ANSYS® Workbench™ software is widely used for such simulations. However, although ANSYS® Workbench™ software provides useful information on the displacements, strains and stresses within the crystal, it does not yield the local reciprocal lattice vectors that would be required for X-ray diffraction calculations. To bridge this gap, a method based on the shape functions and interpolation procedures of the software itself has been developed. An application to the double-crystal bent Laue monochromator being designed for the I12 (JEEP) wiggler beamline at the Diamond Light Source is presented

Journal Keywords: Finite Element; X-Ray; Diffraction; Lattice.

Subject Areas: Physics, Technique Development

Technical Areas: Optics

Added On: 19/08/2009 23:07

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