The SoftiMAX beamline will provide soft x-ray imaging techniques built around the use of spatially coherent light waves. These techniques produce microscopic images of a sample, which at the same time can hold chemical, electronic, magnetic and/or structural information, depending on the details of the experiment.
The beamline will have two branchlines: one for scanning transmission microscopy (STXM) & ptychography where thin samples (eg., 0.1 - 5 micron) are raster scanned with a nanobeam focused through a zone plate lens. This branch will be completed first.
The second branch line will be dedicated to Coherent X-ray Imaging (CXI) techniques, where the end station will have a more modular character. Several techniques such as coherent diffraction imaging, holography and resonant soft x-ray scattering are foreseen here.
|Techniques||Scanning Transmission X-ray Microscopy (including fluorescence), Ptychography, Fourier Transform Holography, Resonant Soft X-ray Scattering|
|Beam Size||Diameter: 10-100 nm (STXM/Ptycho), 20 μm (CXI)|
|Energy Range||275 – 2500 eV with full polarization control|
|Time Scales||0.1 ms to s per point/shot, with full spectroscopy scans in 15-30 minutes, full fluorescence spectroscopy scans up to hour(s)|
|Samples||Biology, Magnetism, Life- and Materials science|
An innovative mirror unit for soft X-ray beamlines at MAX IV
A new five-axis parallel kinematic mirror unit has been developed for MAX IV soft X-ray beamlines. Its development and technical characteristics are now described in a peer-reviewed article. In an article published in March 2020 in the Journal of Synchrotron Radiation, a team from Uppsala University, MAX IV Laboratory, FMB Feinwerk und Messtechnik GmbH, and