title: Software for automatic calibration of synchrotron powder diffractometers.
abstract: An automatic procedure to calibrate angular-dispersive monochromatic diffraction instruments has been developed at the Daresbury Synchrotron Radiation Source. The procedure uses a macro Language to control the powder diffraction instruments to locate Bragg reflections and perform peak-centre refinement from a standard reference material. The information obtained is used to refine the wavelength of the radiation used and the angular offset of the detector arm. The concept and implementation of the new software are described with applications to demonstrate its viability. The results of a reliability and accuracy study are also presented.
authors.affiliation: Daresbury Laboratory, Warrington, Cheshire WA4 4AD, UK. d.laundy@dl.ac.uk
authors.forename: David
authors.initials: D
authors.lastname: Laundy
authors.forename: Chiu
authors.initials: C
authors.lastname: Tang
authors.forename: Mark
authors.initials: M
authors.lastname: Roberts
authors.forename: Mike
authors.initials: M
authors.lastname: Miller
authors.forename: Stephen
authors.initials: S
authors.lastname: Thompson
authors.forename: Graham
authors.initials: G
authors.lastname: Bushnell-Wye