Diffraction anomalous fine-structure spectroscopy at beamline BM2 at the European Synchrotron Radiation Facility.
Diffraction anomalous fine-structure (DAFS) spectroscopy uses resonant elastic X-rays scattering as an atomic, shell and site-selective probe that provides information on the electronic structure and the local atomic environment as well as on the long-range-ordered crystallographic structure. A DAFS experiment consists of measuring the Bragg peak intensities as a function of the energy of the incoming X-ray beam. The French CRG (Collaborative Research Group) beamline BM2-D2AM (Diffraction Diffusion Anomale Multi-longueurs d'Onde) at the ESRF (European Synchrotron Radiation Facility) has developed a state-of-the-art energy scan diffraction set-up. In this article the requirements for obtaining reliable DAFS data are presented and recent technical achievements are reported.
Renevier
H
H
Laboratoire de Cristallographie, Centre National de la Recherche Scientifique, BP 166, F-38042 Grenoble CEDEX 09, France. hubert.renevier@cea.fr
Grenier
S
S
Arnaud
S
S
Bérar
J F
JF
Caillot
B
B
Hodeau
J L
JL
Letoublon
A
A
Proietti
M G
MG
Ravel
B
B
D000465:Algorithms; D016477:Artifacts; D003461:Crystallography / Q000295:instrumentation / Q000379:methods; D004867:Equipment Design; D005060:Europe; D008968:Molecular Conformation; D011786:Quality Control; D015203:Reproducibility of Results; D012680:Sensitivity and Specificity; D013052:Spectrometry, X-Ray Emission / Q000295:instrumentation* / Q000379:methods*; D017356:Synchrotrons / Q000295:instrumentation*; D014961:X-Ray Diffraction / Q000295:instrumentation* / Q000379:methods*