XRD1 – IC TRIESTE

The hard X-ray diffraction beamline XRD1 at Elettra was designed for macromolecular crystallography, but its characteristics allow performing a wide variety of experiments. The source is a multipolar wiggler with a useful energy interval between 4 and 21 keV. The optics consist of a vertical collimation mirror, a double crystal monochromator Si (111) and a focusing mirror. The multipolar wiggler spectrum offers a particularly high photon flux at low energies, allowing the optimization of the anomalous signal of several heavy atoms (up to the calcium absorption edge) and allowing the enhancement of the anomalous sulphur signal. The experimental configuration consists of a Huber k-geometry goniometer fully remote controlled, coupled with a two-dimensional Dectris Pilatus 2M hybrid detector. The beamline hosts experiments of diffraction from single crystal on small molecules and proteins, diffraction from powders or from surfaces (in grazing incidence) and of high-pressure physics.

4-circle goniometer in kappa geometry. XYZ motorized head mounted on the phi circle, allowing the remote centering of the sample. Dectris Pilatus 2M planar detector (detector-sample distance 90 – 600mm). Slits for beam definition, solid state ionization chambers for monitoring, attenuation filters, motorized beamstopper. Remote controlled camera for sample visualization and centering. Five-axis optical table, Oxford Cryostream 700 cryostat (temperature range 85 – 400 K, remotely controlled). Setting for high pressures with diamond anvil cell. Sample changer (developed on site) and robot for automated data collection from protein crystals. Fluorescence detector Amptek. Helium path for air-scattering reduction.

Name and Surname :  LUISA BARBA
Unit Trieste
Tel 0403757524; 040 3758355
Mail luisa.barbaATic.cnr.it

Name and Surname:  GIUSEPPE CHITA
Unit Trieste
Tel 040 3757535
Mail giuseppe.chitaATic.cnr.it