SMALL-ANGLE TOPOGRAPHY AID Russian patent published in 1998 - IPC

FIELD: X-ray topography of objects, determination of structure of composite inhomogeneous test object and identification of substances forming it. SUBSTANCE: aid incorporates source of penetrating radiation and collimator that forms flux incident on radiation object in the form of narrow slightly diverging beams. Spatial filter positioned behind test object extracts from flux that passes through object radiation scattered by object to small angles which are recorded by detector. Image of object is constructed on basis of information on small-angle scattering. During formation of radiation flux incident on object collimator illuminates only separate band of it that is why aid is fitted with means for movement of object relative to radiation incident on it to obtain complete projection of object. EFFECT: improved functional reliability of aid. 4 cl, 8 dwg