Source: 3 undulators (two U35 and one U32) giving a flux exceeding 1013 ph/s in the whole 5-24 keV energy range.
Front end: Windowless beamline with a high power front end.
Monochromator: Liquid nitrogen cooled monolithic channel-cut Si(111).
Three optical configurations giving the following figures of merit at the sample positions:
Experiment: two large hutches hosting one vertical and one horizontal geometry diffractometers allow surface x-ray diffraction studies in a variety of experimental sample environment conditions.
Surface X-ray diffraction is a well established technique for studying surfaces and interfaces. Even if several other techniques allow a structural determination of surfaces, X-ray diffraction offers unique possibilities:
ID03 Beamline Layout along OH, EH1 and EH2
ID03 is an undulator beamline dedicated to surfaces and interfaces structural characterizations. The beamline can be used for performing static surface crystallography studies or for studying processes at surfaces in real time. The photon energy is continuously tuneable in the range 5-24 keV giving the possibility of performing measurements at resonance for a large part of the elements.
The beamline has two experimental hutches:
the first experimental hutch (EH1) is equipped with a z-axis vertical diffractometer, specially suited for samples with a horizontal surface geometry. Users’ chambers can be mounted on the diffractometer. The maximum load supported by the mechanics is 50 kg. The incident beam can be tilted downwards (max. angle 0.5°) by the vertical KB mirror, thus liquid surfaces are also accessible.
the second experimental hutch (EH2) hosts a z-axis horizontal diffractometer. The diffractometer is dedicated to Ultra-High-Vacuum studies and is coupled with a UHV chamber. The sample can be prepared in-situ and for this reason one or several K-cells or e-beam cells can be mounted on users’ demand. Ion sputtering for sample surface cleaning, and a Cylindrical Mirror Analyser (CMA) for recording Auger spectra, are available with the sample in the diffraction position. A MOKE apparatus can also be installed for in-situ magnetization measurements. The sample can be heated up to 1300 K (flash), 900 K (continuous) and cooled down to about 80 K.