P21.1 High Energy X-Ray Diffraction for Physics and Chemistry

P21.1 experimental hutch

 

High energy X-ray diffraction and scattering based techniques play a major role in many scientific fields incl. physics, chemistry, and materials science. In particular, they enable complex in situ and operando experiments and the analysis of local (dis)order on atomic scale. The high-energy scattering and diffraction beamlines P07-DESY and P21.1 are operated jointly with a focus on exploiting the high energy X-ray's for applications in chemistry and physics.

P21.1 is a versatile high-energy x-ray diffraction beamline. Standard experiments include studies of single crystals, amorphous materials, liquids and nanocrystalline matter at various conditions (Methods). The beamline comprises a broad band monochromator, a heavy load sample stage and a detector stage with both point and area detectors.

The high photon energy allows for measuring with complex sample environment while maintaining the possibility to access a wide q-range. This makes it possible to make diffraction and total scattering experiments in a variety of conditions such as magnetic field, temperatures, in situ and operando modes for several types of materials.

The beamline operates at fixed photon energies, primarily at 100 keV and with possibilities to shift to 52 and 85 keV. The beam size is about 1 × 1 mm2. For scattering studies needing focused beam we refer to P07-DESY.

Typical experiments at the beamlines

P21.1

P07

Single-crystal total and diffuse scattering

Grazing incidence diffraction and scattering

Total scattering and powder diffraction

X-ray diffraction computed tomography (XRD-CT)

Combined small-angle scattering and total scattering

Microbeam scattering and diffraction