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Abstract

A Laue camera is provided by incorporating an X-ray source represented by its focus and defined by its two focal dimensions and its exposure angle, a photographic film holder, a collimator taking the form of two diaphragms and placed on the path of the rays between the source and the film, but close to the latter. The X-ray source is used at an exposure angle such that its apparent focal dimensions are of the same size, that the diameter of the openings in the diaphragms is virtually of the same size as the two apparent focal dimensions of the source, that this size is smaller than the average radius desired for a spot in the diffraction diagram obtained from a sample obtained with the aid of this device with the sample being placed close to the surface of the film opposite to the source.

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First Claim