; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ;
1 Department of Physics, Technical University of Denmark 2 Neutrons and X-rays for Materials Physics, Department of Physics, Technical University of Denmark 3 SLAC National Accelerator Laboratory 4 Argonne National Laboratory 5 Technological Institute of Superhard and Novel Carbon Materials 6 Risø National Laboratory for Sustainable Energy, Technical University of Denmark 7 Argonne National Laboratory
A double-crystal diamond monochromator was recently implemented at the Linac Coherent Light Source. It enables splitting pulses generated by the free electron laser in the hard x-ray regime and thus allows the simultaneous operations of two instruments. Both monochromator crystals are High-Pressure High-Temperature grown type-IIa diamond crystal plates with the (111) orientation. The first crystal has a thickness of ∼100 μm to allow high reflectivity within the Bragg bandwidth and good transmission for the other wavelengths for downstream use. The second crystal is about 300 μm thick and makes the exit beam of the monochromator parallel to the incoming beam with an offset of 600 mm. Here we present details on the monochromator design and its performance. © 2014 AIP Publishing LLC.
Review of Scientific Instruments, 2014, Vol 85, Issue 6
Instrumentation; Coherent light; Crystal orientation; Diamonds; Free electron lasers; Light sources; Linear accelerators; Bragg bandwidth; Diamond crystals; High reflectivity; High temperature; Linac Coherent Light Source; Monochromator crystals; Second crystal; Simultaneous operation; Monochromators
Main Research Area: