FIELD: nondestructive test. SUBSTANCE: penetrating radiation flux 4 with local angular divergence limited with the aid of collimator 3 is passed through object 5. To obtain image, radiation flux 6 passed through object 5 under test is recorded by directional selective detector 10 with directivity pattern width not exceeding the double value of local angular divergence of penetrating radiation flux 4. Local limitation of radiation flux 4 is carried out in two intercrossing planes. EFFECT: higher efficiency. 2 cl, 7 dwg
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