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20 January 1993 Grooved crystal monochromator operating at Bragg angles near pi/2
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Abstract
A grooved crystal monochromator with Ge 620 reflections operating at Bragg angles around 89.5 degree(s) was constructed and characterized. A monochromatized beam in the forward direction with high energy resolution ((Delta) E/E equals 1.66 10-5) and fine energy tuning performed by its temperature variation was obtained. Several back and forth reflections occur within the grooved crystal allowing the operation at Bragg angles very near to (pi) /2. High reflectivities, around 0.9, of the diffraction profiles in the back diffraction regime guarantees small losses in intensity. This monochromatized beam was used to obtain and measure transmitted diffraction profiles at Bragg angles equal to (pi) /2.
© (1993) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Carlos M. Giles and Cesar Cusatis "Grooved crystal monochromator operating at Bragg angles near pi/2", Proc. SPIE 1740, Optics for High-Brightness Synchrotron Radiation Beamlines, (20 January 1993); https://doi.org/10.1117/12.138703
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