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Crystal monochromator

From Wikipedia, the free encyclopedia
Neutron monochromator for the ECHIDNA powder diffractometer at OPAL in Australia. It is made by slabs of [113] oriented Germanium crystals which are inclined towards each other in order to focus down the Bragg reflected beam.

A crystal monochromator is a device in neutron and X-ray optics to select a defined wavelength of the radiation for further purpose on a dedicated instrument or beamline.[1] It operates through the diffraction process according to Bragg's law.

Similar devices are called crystal analyzer for the examination of scattered radiation.

References

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  1. ^ Streli, Christina; Wobrauschek, P.; Kregsamer, P. (2017-01-01), Lindon, John C.; Tranter, George E.; Koppenaal, David W. (eds.), "X-Ray Fluorescence Spectroscopy, Applications", Encyclopedia of Spectroscopy and Spectrometry (Third Edition), Oxford: Academic Press, pp. 707–715, ISBN 978-0-12-803224-4, retrieved 2024-11-09