P21 Swedish Materials Science Beamline (SMS)

The Swedish materials science beamline (SMS) consists of an inline branch (P21.2) and a side branch (P21.1).

The inline branch will operate in the energy range of 40 - 150 keV and is in particular designed for the combination of WAXS, SAXS, and Imaging techniques. Therefore the downstream "diffraction station" EH3 provides flexible positioning of various detector types including a SAXS camera 15 m behind the sample position. An interface diffractometer is optimized for grazing incidence geometries, and a diffractometer for bulk samples provides a vertical rotation axis with sub-micrometer concentricity. Both instruments can also support medium sized sample environments (up to a weight of few hundred Kg). An Eulerian cradle with horizontal rotation axis could also be mounted to the bulk sample diffractometer. Larger sample environments can be operated in the upstream "roll in" station EH2.

The side branch operates with a fixed angle of a single-bounce (broad band) monochromator providing photon energies of 52keV, 85keV, and 100keV. In the experimental hutch EH1 a set-up for high-energy x-ray diffraction is utilized for studies of single crystals, amorphous materials liquids and nanocrystalline matter. It comprises a heavy load sample stage and a detector stage with both point and area detectors.

First beam: spring 2018


Technical Design Reports

application/pdf Conceptual Design Report (855KB)
Conceptual Design Report
application/pdf P21_TDR_Final_07-08-2013.pdf (4.6 MB)
Technical Design Report


application/x-pdf TDR_Presentation_Lienert.pdf (3.3 MB)
TDR presentation Lienert
application/pdf TDR_Presentation_Sidestation_Zimmermann.pdf (1.2 MB)
TDR Presentation sidestation v.Zimmermann
application/pdf TDR_Presentation_Drube.pdf (1.9 MB)
TDR Presentation Drube


application/pdf P21_poster_UM2014.pdf (457KB)
DESY Users Meeting 2014

Location of P21 in the new erected PETRA III East Hall

Schematic overview of P21 (tentative)