Highly asymmetric Laue focusing monochromator

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Authors	OBERTA P. MIKULÍK Petr HRDÝ J. KITTLER M.
Year of publication	2010
Type	Article in Proceedings
Conference	SRI 2009: The 10th international conference on synchrotron radiation instrumentation: AIP Conference Proceedings
MU Faculty or unit	Faculty of Science
Citation
Web	http://scitation.aip.org/getabs/servlet/GetabsServlet?prog=normal&id=APCPCS001234000001000724000001&idtype=cvips&gifs=yes&ref=no
Field	Solid matter physics and magnetism
Keywords	diffractive-refractive optics; x-rays; crystals; lens; radiation
Description	By using two highly asymmetric Laue crystals in a dispersive arrangement with a circular profile (empty set 8 mm) we have created a sagittaly focusing Laue system for the first time. The crystallographic planes (111) of the two Si crystals formed an angle of 7.95 degrees with the entrance surface. The crystals dimensions were 40 mm x 20 mm and the diffracting surface was a 0.5 mm thick neck between the two circular profiles. The 15.35 keV diffracted beam formed an angle of 0.55 degrees with the exit surface. The calculated focusing distance of the Laue-Laue focusing system was 14 m.
Related projects:	Physical and chemical properties of advanced materials and structures