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Instrumentation for Synchrotron X-Ray Powder Diffractometry
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1985
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EngineeringMicroscopyPolycapillary OpticsSynchrotron Radiation SourceX-ray ImagingSynchrotron Radiation ResearchX-ray TechnologyScintillation CounterInstrumentationRadiation ImagingHealth SciencesRadiation DetectionPhysicsSynchrotron RadiationCrystallographyMaterials CharacterizationApplied PhysicsX-ray DiffractionStorage RingPowder Specimens
Abstract The instrumentation developed for poly crystalline diffractometry using the storage ring at the Stanford Synchrotron Radiation Laboratory is described. A pair of automated vertical scan diffractometers was used for a Si (111) channel monochromator and the powder specimens. The parallel beam powder diffraction was defined by horizontal parallel slits which had several times higher intensity than a receiving slit at the same resolution. The patterns were obtained with 2:1 scanning with’ a selected monochromatic beam, and an energy dispersive diffraction method in which the monochromator is step-scanned, and the specimen and scintillation counter are fixed. Both methods use the same instrumentation.