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Proceedings Paper

Graded crystal monochromator at Bessy II
Author(s): Alexei I. Erko; Ingo Packe; Wolfgang Gudat; Nikolai V. Abrosimov; Alexander A. Firsov
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Paper 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.

Paper Details

Date Published: 5 January 2001
PDF: 7 pages
Proc. SPIE 4145, Advances in X-Ray Optics, (5 January 2001); doi: 10.1117/12.411628
Show Author Affiliations
Alexei I. Erko, BESSY GmbH (Germany)
Ingo Packe, BESSY GmbH (Germany)
Wolfgang Gudat, BESSY GmbH (Germany)
Nikolai V. Abrosimov, Institute of Crystal Growth (Germany)
Alexander A. Firsov, Institute of Microelectronics Technology (Russia)

Published in SPIE Proceedings Vol. 4145:
Advances in X-Ray Optics
Alan G. Michette; Andreas K. Freund; Tetsuya Ishikawa; Sebastian Oestreich; Derrick C. Mancini; Ali M. Khounsary; Derrick C. Mancini; Alan G. Michette; Sebastian Oestreich, Editor(s)

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