Performance of a beam-multiplexing diamond crystal monochromator at the Linac Coherent Light Source
- Linac Coherent Light Source, SLAC National Accelerator Laboratory, Menlo Park, California 94025 (United States)
- Advanced Photon Source, Argonne National Laboratory, Lemont, Illinois 60439 (United States)
- Technological Institute of Superhard and Novel Carbon Materials, Tsentralnaya str. 7a, Troitsk, Moscow 142190 (Russian Federation)
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.
- OSTI ID:
- 22308842
- Journal Information:
- Review of Scientific Instruments, Journal Name: Review of Scientific Instruments Journal Issue: 6 Vol. 85; ISSN 0034-6748; ISSN RSINAK
- Country of Publication:
- United States
- Language:
- English
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Diamond channel-cut crystals for high-heat-load beam-multiplexing narrow-band X-ray monochromators
Related Subjects
BEAMS
BRAGG REFLECTION
CRYSTAL STRUCTURE
CRYSTALS
DIAMONDS
FREE ELECTRON LASERS
HARD X RADIATION
LIGHT SOURCES
LINEAR ACCELERATORS
MONOCHROMATORS
PERFORMANCE
PRESSURE RANGE MEGA PA 10-100
REFLECTIVITY
TEMPERATURE RANGE 0400-1000 K
WAVELENGTHS