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Ein gekrümmter Neutronenmonochromator hoher Reflektivität
Author(s) -
Kalus J.
Publication year - 1975
Publication title -
journal of applied crystallography
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.429
H-Index - 162
ISSN - 1600-5767
DOI - 10.1107/s0021889875010692
Subject(s) - monochromator , radius of curvature , optics , radius , germanium , wavelength , curvature , neutron , resolution (logic) , ideal (ethics) , physics , stacking , materials science , geometry , nuclear physics , optoelectronics , mathematics , nuclear magnetic resonance , silicon , mean curvature , computer security , mean curvature flow , artificial intelligence , computer science , philosophy , epistemology
A neutron monochromator built by stacking elastically curved ideal germanium crystals is examined. The radius of curvature of the crystals was 566 + 5 cm. The measured reflectivity, for a 220 reflexion, was in the region of 60 % for neutrons with wavelengths of 1 to 2 Å. It is shown that the momentum resolution depends in a simple way on the thickness of the monochromator, which was up to 7.2 mm.