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A MICRO BEAM COLLIMATOR FOR HIGH RESOLUTION XRD INVESTIGATIONS WITH CONVENTIONAL DIFFRACTOMETERS
A MICRO BEAM COLLIMATOR FOR HIGH RESOLUTION XRD INVESTIGATIONS WITH CONVENTIONAL DIFFRACTOMETERS
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机译:用于常规X射线衍射的高分辨率XRD研究的微束收集器
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摘要
A micro collimator for compressing X-ray beams for use in a X-ray diffractometer is described, wherein said collimator has a channel means for providing a channel guiding said X-ray beams, said channel having a channel entrance portion and a channel exit portion. The object of the invention is to provide a micro beam collimator capable of being used in a conventional X-ra y diffractometer with the Bragg-Brentano geometry, so as to enable the characterisation of very small sample regions without need of very large radiation sources (synchrotron). For solving this technical problem it is proposed to form the channel means by two opposite, polished, oblong plate means made of or coated with a material selected from the group consisting o f the heavyweight metals and materials having total reflection properties comparable to those of the heavyweight metals.
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