The ultrafast beamline facilitates studies of the structure and dynamics of materials. Such studies are of fundamental importance for key scientific problems directly related to programming materials using light, enabling new storage media and new manufacturing techniques, obtaining sustainable energy by mimicking photo-synthesis and gleaning insight into chemical and biological functional dynamics. Due to the emergence of X-ray sources with high peak brilliance, the field of pico-second X-ray diffraction has developed rapidly over the last few years. The key technology behind future breakthroughs in this area is the generation and detection of very short and very intense X-ray pulses. The femtosecond X-ray beamline at the MAX IV short-pulse facility (SPF) will have pulse lengths on the time scale of molecular vibrations at wavelengths matching inter-atomic distances (Å). Swedish scientists have a prominent international profile in developing and utilizing ultrafast X-ray techniques. With strong national activities it is anticipated that this position will be even strengthened.

The FemtoMAX will be of great interest not only for the Swedish research community but will, also in an international perspective, become a core facility for ultrafast X-ray experiments in physics, chemistry and biology.

 

Techniques

Available forTechnique description
General UsersScattering set-up (SAXS, WAXS) Air or He-environment
General UsersScattering set-up (in vacuum). Limited scattering range +/-10 degrees horisontal 0-40 degrees vertical
Vacuum better than 1E-7 mBar; 2E-6 with Pilatus connected to vacuum;
Cryocooling 40K for grazing incidence samples
Tilt range +/- 0.5 degrees
Wedges available on request to match Bragg angle. No cryocooling with wedges.
General UsersTilt platform 0-15 degrees (wedges available on request)
Air
+/-20 mm translation range
Cryostream for LN2 available (performance untested)
General UsersLife-time measurement by visible fluorescence detection following X-ray excitation

2021-02-23

Towards a future setup for catching ultrafast protein movement at FemtoMAX

Proteins are the building blocks of viruses, cells, and enzymes. Fully understanding them requires access to imaging their often very rapid motion. An international team of researchers have recently published a study showing that the ultrashort X-ray pulses of the FemtoMAX beamline are enough for making images of, in this case, stationery, protein crystals with