XCRYSTAL_BENT

Function

Calculate the diffraction profiles of curved crystals. Several theoretical models are available in the xcrystal_bent program:

• Multilamelar model, useful for computing diffraction profiles of curved crystal in Bragg geometry

• Penning-Polder model, for crystals in Laue geometry.

• Takagi-Taupin. This model is in experimental status so results should be taken with extreme prudence. It is recommended not to use it if the user is not familiar with the theory

Documentation

• application doc

• input parameters (main)

• input parameters (specific for Takagi-Taupin)

• See also: X-ray Optics

Technical aspects

• Numerical calculations are done using the Fortran codes crystal_ml, crystal_za, crystal_pp and crystal_tt:

• The Zachariasen theory is for flat crystals. It is used here for comparison purposes.

• Specifoc parameters for the Takagi-Taupin theory are available at Set_Parameters>Takagi-Taupin specific parameters window.