Open AccessI18 – the microfocus spectroscopy beamline at the Diamond Light Source
Author(s) -
Mosselmans J. Frederick W.,
Quinn Paul D.,
Dent Andrew J.,
Cavill Stuart A.,
Moreno Sofia Diaz,
Peach Andrew,
Leicester Peter J.,
Keylock Stephen J.,
Gregory Simon R.,
Atkinson Kirk D.,
Rosell Josep Roque
Publication year - 2009
Publication title -
journal of synchrotron radiation
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.172
H-Index - 99
ISSN - 1600-5775
DOI - 10.1107/s0909049509032282
Subject(s) - beamline , monochromator , undulator , optics , diamond , spectroscopy , materials science , physics , laser , wavelength , beam (structure) , quantum mechanics , composite material
The design and performance of the microfocus spectroscopy beamline at the Diamond Light Source are described. The beamline is based on a 27 mm‐period undulator to give an operable energy range between 2 and 20.7 keV, enabling it to cover the K ‐edges of the elements from P to Mo and the L 3 ‐edges from Sr to Pu. Micro‐X‐ray fluorescence, micro‐EXAFS and micro‐X‐ray diffraction have all been achieved on the beamline with a spot size of ∼3 µm. The principal optical elements of the beamline consist of a toroid mirror, a liquid‐nitrogen‐cooled double‐crystal monochromator and a pair of bimorph Kirkpatrick–Baez mirrors. The performance of the optics is compared with theoretical values and a few of the early experimental results are summarized.