P61A White Beam Engineering Materials Science (HZG)


P61A is going into regular user operation from March 2021.

P61A focuses on energy dispersive diffraction experiments for Materials Science and Engineering. The incident synchrotron radiation is produced by 10 damping wigglers, resulting in a high intensity beam with usable energy from 30 to 200 keV.

On scattering experiments, data collection is done by energy dispersive detectors positioned in a detector portal. Two detectors can be used simultaneously and can be independentently positioned at any azymuth angle with a 2θ between 0 and 12o. Both detectors are equipped with 0.5 m long slit collimators. Scattering measurements at P61 can be done either in reflection or transmission. In reflection geometry, peaks from different hkl families are measured simultaneously at different energies on a fixed scattering vector direction. Since each energy has a different absorption coefficient, a probing depth can be assigned to each peak collected, which can be uniquely used to study near surface stress and microstructural gradients. In transmission geometry, the incident and diffracted beam slits can be adjusted to define a gauge volume whithin the measured material, allowing three-dimensional mapping of the microstructure.

P61A will be equipped with two sample positioning devices. A small Eulerian cradle is used for small samples and has the necessary degrees of freedom for stress and texture analysis. The Eulerian cradle can also be fitted with Anton-Paar furnaces available at the beamline or other smaller sample stages provided by users. A Heavy load diffractometer will be available on the second semester of 2021. It can support weights up to 600 kg (static) and can be fitted with a suite of large sample environments, including Selective Laser melting AM machines, motorized welding platforms, dilatometers, etc. It can also be used to position large scale sample environments provided by users.