FIELD: nondestructive testing. SUBSTANCE: solution of barium iodide is injected into object under test. Before and after injection of the substance object is irradiated by X-ray and gamma radiation with energy in excess of 37.44 keV. Difference distriv=bution of flux of secondary radiation emerging under action of radiation is obtained. Configuration and dimension of flaw are determined by difference distribution. EFFECT: improved authenticity of method. 3 cl
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