Information for the General User Call (closing 2024-03-06 at 14:00):

CoSAXS is a hard X-ray SAXS/WAXS beamline on the 3 GeV ring at MAX IV.  The available q-range is 1 x 10-3 to 0.7 Å-1 in SAXS and 1 x 10-3 to 2.0 Å-1 at 12.4 keV in SAXS/WAXS geometry. There are a range of sample environments available, please contact Beamline Staff for further information.

A call has been opened for general users. Details of what will be offered in the call are below. Due to the high brilliance of CoSAXS, many samples will need to be under flow or move to avoid radiation damage. Please consider pre-characterisation of all samples, their stability and sensitivity to radiation damage, where appropriate – we also offer fast access for sample screening and short/basic characterisation experiments.

Basic SAXS sample environments for liquids and solid samples (room temperature)

Autoloader and flow through capillary cell for solutions


Laser triggered, temperature jump time-resolved SAXS (2 ms time-resolution), at 12.4 keV, q-range 1×10-3 to 0.5 Å-1 and ca. 1.5 to 2.3 Å-1. Laser system: Fiber coupled (200 µm diameter fiber), 50 W, 1470 nm CW laser gated by TTL pulse to achieve pulse lengths down to 1 ms.

Multiple sample holders for either capillaries or solid samples, with thermostatic water bath

Linkam heating stage HFS-X350 for capillaries, with liquid nitrogen cooling pump LNP96, temperature range -195 to 350 oC

Anton Paar MCR 702 Rheometer with polycarbonate concentric cylinder sample geometry

Microfluidic flow cells (please discuss your needs with the beamline)

2 Tesla electromagnetic for liquid and solid samples

Ultrasonic acoustic levitator

Uni/Biaxial planar mechanical tester

For further information on Sample Environment see here

  • Si(111) double crystal monochromator – most common energy used is 12.4 keV
  • SAXS detector is an Eiger2 4M
  • WAXS detector is a Pilatus 2M, in an L-shaped configuration
  • The full Q-range, requiring multiple detector positions, can cover 1×10-3 to 0.7 Å-1 (SAXS) and to 2.0 Å-1 (SAXS/WAXS) at 12.4 keV
  • The minimum beam size, when focussing at the sample position, is 30 um x 15 um (width x height)
  • Most sample environments will be at ambient pressure
  • No toxic gas handling will be available at the sample position
Page manager: Ann Terry February 15, 2024