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5 January 2001 Graded crystal monochromator at Bessy II
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Abstract
The first successful tests of a graded crystal x-ray monochromator at BESSY II based on SiGe crystals are reported. The monochromator crystals with Ge concentration gradient of 0.8%/cm along the crystal surface have been tested at the KMC- 2 beamline. The beam from the BESSY II bending magnet with vertical divergence of 0.2 mrad was used. In comparison with conventional Si crystals the enhancement of an energy resolution is 3 - 5 times and, simultaneously, increase of spectral flux density of 4 - 6 times were obtained.
© (2001) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Alexei I. Erko, Ingo Packe, Wolfgang Gudat, Nikolai V. Abrosimov, and Alexander A. Firsov "Graded crystal monochromator at Bessy II", Proc. SPIE 4145, Advances in X-Ray Optics, (5 January 2001); doi: 10.1117/12.411628; https://doi.org/10.1117/12.411628
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