Project background
The ESRF synchrotron leases the most advanced equipment allowing industrial and research organizations to perform their atomic scale experiments.
The CRG-IF BM32 beamline is specialized in studying interfaces and surfaces at air or under ultra high vacuum by X-ray scattering techniques.
This beamline is dedicated to a team composed of scientists from the Atomic Energy Commission (CEA) and the French National Centre for Scientific Research (CNRS).
CUSTOMER REQUEST
The joint CEA-CNRS team used a 20 years old diffractometer to study nanostructures on surfaces during their growth. They chose SYMETRIE to provide a more powerful machine.
The new diffractometer performs 2 main functions:
■ Sample positioning: the sample is adjusted on the beam trajectory and can move in 6 degrees of freedom, thanks to a BREVA hexapod, to adjust the angle of incidence of the beam.
■ Detector positioning: to gather the diffracted X-rays characterizing the crystallographic structure of the sample, a detector moves freely on a spherical surface around the sample.
Project specifications
■ Easy access to the UHV chamber
■ Arm detector angular speed: 20°/s
■ Sphere of confusion sample: 50 µm
■ Sphere of confusion detector: 100 µm
■ BREVA hexapod resolution: 1 µm, 0.001°
