RADIOISOTOPE FLAW DETECTION METHOD AND ARRANGEMENT OF THE WELDED IN TUBULAR ELEMENTS ANNULAR WELDED JOINTS METAL SUPRA-MOLECULAR STRUCTURE DYNAMIC SLOT RADIOGRAPHY DEVICE Russian patent published in 2019 - IPC G01N23/18 

FIELD: defectoscopy.

SUBSTANCE: use: for the welded in tubular elements annular joints radioisotope flaw detection. Essence of invention consists in the fact that the welded tubular elements annular joints X-raying from the inner cavity certain focal point, spaced from the outer end, by the sharp-focus radioisotope emitter, strictly along the axis enclosed in corresponding to it socket between made of radiation non-transparent material by the structurally interfaced with base cone-shaped the rod-shaped units surfaces, arranged in made with possibility of turning about its axis made of tungsten case, discretely moved to control zone along the object axis through the light protective cartridge through hole, at that, carrying information on the control object macrostructure radiation registration with X-ray film in light-protective cartridge, stationary fixed to the irradiator unit end surface, is performed at an angular velocity of 1 to 2 s^-1 by the multiple regular rotary-scanning radiation beams, formed by slit slots, perforated in the case radiation-opaque shell, and forming the rod-shaped unit truncated cone-shaped protrusion surfaces in accordance with the spatial angle, in the polar coordinate system determining the weld joint control zone and including the cone-shaped seat angle in the closing rod-shaped element end face as the radiation reflecting converter towards the welded joint.

EFFECT: technical result is enabling of the obtained images quality optimization possibility, including under conditions of the scattered radiation generation by the complex control system structural elements.

4 cl, 2 dwg