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Micro XAS

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microXAS - X05LA: Environmental & Materials Sciences

The microXAS beamline at the Swiss Light Source (SLS) corresponds to a versatile, in-vacuum undulator based hard x-ray microprobe facility. The beamline is covering the large spectral range from ~3keV up to ~23 keV, delivering monochromatic radiation as well as full ‘white’ light. Employing different focusing concepts, the beamline provides several types of high-brilliance focused beams, covering a large range of spatial resolutions from hundreds of micrometers down to nanometer size. The instrument is devoted to high resolution multimodal chemical imaging based on X-ray fluorescence, X-ray spectroscopy and X-ray diffraction techniques. The variety of complementary imaging modes can be employed routinely in quasi-simultaneous manner to record 2D images of several chemical properties. The progression of the imaging capabilities to full three dimensions using tomographic approaches is currently in progress.


Two additional features make the microXAS beamline a rather exceptional and exclusive X-ray microprobe facility. First, the microXAS beamline permits the investigation of radioactive materials and corresponds to the world-wide solely microprobe facility being able to analyze radioactive sample with 1µm spatial resolution. Second and definitely going beyond any existing X-ray microprobe instrumentation, the FEMTO project is an integral part of the microXAS beamline project. Ultrafast time-resolved X-ray studies with a resolution of picoseconds down to ~100 femtoseconds are ‘routinely’ carried out at the microXAS beam line.

Technical Overview

Energy range ~3 - 23 keV
Flux on sample 2 x 1012 ph/s/400 mA
Spot size on sample± 1 x 1 µm2
Polarization linear horizontal
Photon energy resolution 0.02%

Research Highlights

15. Dezember 2020
Dario Ferreira Sanchez

Look Inside a Chemical Reactor

Research Using Synchrotron Light Materials Research Matter and Material

Operando X-ray spectrotomography allows scientists to look inside of functioning chemical reactors. A research team at Karlsruhe Institute of Technology (KIT), at Paul Scherrer Institute PSI and at the European Synchrotron Radiation Facility (ESRF) in France have employed this method successfully.

Weiterlesen
11. Mai 2020
Cover Materials Today

Operando X-ray diffraction during laser 3D printing

Ultra-fast operando X-ray diffraction experiments reveal the temporal evolution of low and high temperature phases and the formation of residual stresses during laser 3D printing of a Ti-6Al-4V alloy. The profound influence of the length of the laser-scanning vector  on the evolving microstructure is revealed and elucidated.  

Weiterlesen
27. März 2019
inside batteries

Inside Batteries

Lithium ion batteries (LIB) are essential in modern everyday life, with increasing interest in enhancing their performance and lifetime. Secondary particles of Li-rich cathode material were examined with correlated ptychographic X-ray tomography and diffraction microscopy at different stages of cycling to probe the aging mechanism.

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