FIELD: physics.
SUBSTANCE: double-spectrum illumination mode with separate selection of signals arising from radiation absorption in a background substance and signals arising from radiation absorption in overlapping layers of the background substance and inclusion substances is executed, wherein the X-ray exposure procedure is carried out not in one but two mutually perpendicular geometric projections, which enable mutual quantitative comparison of the mass thickness of the inclusion in one of the projections with the value of the linear dimension of that inclusion in the other projection and determine density of the inclusion substance from their ratio.
EFFECT: high probability of detecting hazardous inclusions and significant reduction of the probability of false alarm.
3 cl, 1 dwg
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