Improved calibration of area detectors using multiple placements

Calibration of area detectors from powder diffraction standards is widely used at synchrotron beamlines. From a single diffraction image, it is not possible to determine both the sample-to-detector distance and the wavelength, but, with images taken from multiple positions along the beam direction and where the relative displacement is known, the sample-to-detector distance and wavelength can both be determined with good precision. An example calibration using the GSAS-II software package is presented.

Source: Journal of Synchrotron Radiation - October 22, 2019 Category: Physics Authors: Horn, C. Ginell, K.M. Von Dreele, R.B. Yakovenko, A.A. Toby, B.H. Tags: calibration area detection powder diffraction research papers Source Type: research