FIELD: radiation methods of testing.
SUBSTANCE: tested object is subject to illumination of narrow low-divergent beam of penetrating radiation and radiation passed through object is registered by means of coordinate-sensitive detectors. Structure of matters composing the object is identified from small-angle coherent dissipation of radiation passed through object. Distribution of radiation intensity across the beam is registered when object is present and absent correspondingly. Attenuation factor of penetrating radiation is determined for center of the beam by means of comparing intensities of incident beam and passed beam. Intensity distribution curve is normalized for incident radiation at the area of central peak of diffraction for angle of dissipation by attenuation factor and is subtracted from curve of distribution of radiation passed through the object.
EFFECT: higher quality of building of internal structure of object.
1 tbl, 1 dwg
