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Updated: Aug 11, 2026

High Pressure Single Crystal Diffraction at PX^2
Published on: January 16, 2017
Three-beam diffraction in an elastically strained crystal plate
Helge B Larsen1, Gunnar Thorkildsen, Edgar Weckert
1Department of Materials Science, University of Stavanger, N-4068 Stavanger, Norway. helge.b.larsen@tn.his.no
Abstract:
Based on the Takagi-Taupin equations, an analytical expression for the three-beam diffraction profile function in an elastically strained crystal plate is derived. The strain parameters appear in the shape functions governing both triplet-phase dependent and independent terms in the solution. Simulations show that three-beam profiles are significantly influenced. With increasing strain any phase information in the profiles is obscured and subsequently lost.
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