The CoSAXS beamline is a state-of-the-art multipurpose Small Angle X-ray Scattering (SAXS) instrument with opportunities to use the inherent high coherent properties of the 3 GeV MAX IV ring through X-ray Photon Correlation Spectroscopy (XPCS) experiments. It offers high brilliance, monochromatic and tuneable X-rays, with outstanding performance in low beam divergence, high X-ray flux, and variable beam size in both directions in the full range of the sample-detector distances provided by the beamline (up to 17 m). The optical and mechanical design of the CoSAXS instrument has been carefully developed to preserve the wavefront and the entire coherent flux as much as possible.
This high-performance X-ray beam is complemented by an exceptional pool of sample environments and detector systems. Several techniques are available through modular operation: time resolved SAXS, SAXS/WAXS, protein solution SAXS, microfocusing SAXS, anomalous X-ray scattering and XPCS. It will meet the demands of a large and broad community of users.


Techniques for the Limited Availability, General User Call (2021-09-14):


Contact BL staff for further details. For information on Sample Environment see here

Available forTechnique description
General UsersSAXS, at 12.4 keV, q-range 1×10-3 to 0.5 Å-1. Contact BL staff for further details and see here.
General UsersLaser triggered, temperature jump time-resolved SAXS (2 ms time-resolution), at 12.4 keV, q-range 1 x 10-3 to 0.5 Å-1 and ca. 1.5 to 2.3 Å-1.
General UsersSolution and Bio-SAXS, with pipetting autoloader from 96 well plates, flow-through quartz capillary, in-line HPLC.
General UsersMultiple capillary, multiple position solid sample holders, with thermostatic water bath; Linkam heating stage with liquid nitrogen cooling pump.


Dear user community: CoSAXS beamline is performance ready

Diffraction pattern recorded during ptychographic scans using the Siemens star test sample. The large overall size of the signal on the detector indicates that even the smallest features of the sample contribute to the signal and can thus be reconstructed. Interference fringes (the separation between the intensity maxima and intensity minima) can clearly be seen,