Effects of Lattice Strain in Silicon Double Crystal Monochromators
Silicon double crystal monochromators are standard in modern synchrotron hard X-ray beamlines. Their role is reducing a polychromatic photon beam to a small range of wavelengths, typically within a bandwidth of 0.01-0.1%. These monochromators work through the principle of Bragg diffraction where the crystal lattice spacing, photon energy and incident angle determines the reflectivity of the crystal.