Multiple-wavelength powder diffraction using imaging plates at the Australian National Beamline.
The Australian powder diffractometer at the Photon Factory is capable of recording multiple powder-diffraction scans in less than 5 min per pattern using imaging plates in Debye-Scherrer geometry. This, coupled with incrementing the X-ray beam energy in suitably small steps (down to approximately 2 eV) between exposures, allows fast collection of anomalous diffraction data. Data collected from a copper oxide-based superconductor at energies near the Cu K-absorption edge are presented, along with an account of the technique used to extract multiple-exposure powder-diffraction data from imaging plates.
Cookson
D J
DJ
Australian Nuclear Science and Technology Organisation, Private Mail Bag 1, Menai 2234, Australia.
Hunter
B A
BA
Kennedy
S J
SJ
Garrett
R F
RF