title: Application notes on the use of softer X-rays for anomalous powder diffraction.
abstract: An in-vacuum diffractometer has been modified to collect powder diffraction data from a sample of promazine hydrochloride. Strong anomalous contrast has been observed at, or close to, the sulphur edge. Based on the data collected, a bespoke diffractometer has been designed that, together with minor changes to the geometry of the experiment, will enable the routine collection of powder data at absorption edges below 5.5 keV.
authors.affiliation: Daresbury Laboratory, Warrington WA4 4AD, UK. r.j.cernik@dl.ac.uk
authors.forename: R J
authors.initials: RJ
authors.lastname: Cernik
authors.forename: S
authors.initials: S
authors.lastname: Husheer
authors.forename: A D
authors.initials: AD
authors.lastname: Smith
authors.forename: M
authors.initials: M
authors.lastname: Roper
mesh_terms: D004867:Equipment Design; D019544:Equipment Failure Analysis; D008968:Molecular Conformation; D033362:Powder Diffraction; D014961:X-Ray Diffraction / Q000295:instrumentation* / Q000379:methods*