TOMCAT: A beamline for TOmographic Microscopy and Coherent rAdiology experimenTs

Synchrotron‐based X‐ray Tomographic Microscopy (SRXTM) is nowadays a powerful technique for non‐destructive, high‐resolution investigations of a broad kind of materials. High‐brilliance and high‐coherence third generation synchrotron radiation facilities allow micrometer and sub‐micrometer, quantitative, three‐dimensional imaging within very short time and extend the traditional absorption imaging technique to edge‐enhanced and phase‐sensitive measurements. At the Swiss Light Source, a new, tomography dedicated beamline called TOMCAT has been built recently. The new beamline get photons from a 2.9 T superbend with a critical energy of 11.1 keV. This makes energies above 20 keV easily accessible. To guarantee the best beam quality (stability and homogeneity), the number of optical elements has been kept to a minimum. A Double Crystal Multilayer Monochromator (DCMM) covers an energy range between 8 and 45 keV with a bandwidth of a few percent down to 10−4. The beamline can also be operated in white‐beam mode, providing the ideal conditions for real‐time coherent radiology.