METHOD OF MAKING MULTICHANNEL COLLIMATOR FOR GAMMA-RADIOGRAPHY Russian patent published in 2025 - IPC G21K1/02 

FIELD: nuclear engineering.

SUBSTANCE: invention relates to a method of making a multichannel collimator for gamma-radiography and can be used in pulsed gamma-radiography of fast processes. Method is implemented by forming a coaxial layered structure consisting of alternating shells from materials with high and low coefficient of absorption of gamma radiation with formation of channels for passage of direct-flight radiation. Collimator body is formed by a set of conical shells of variable thickness, wherein the shells are made by winding the foil end-to-end on a frame in the form of a cylinder, the frame is made from a material with a low absorption coefficient, each shell is made multilayer.

EFFECT: improved quality of X-ray images due to effective suppression of scattered radiation.

2 cl, 4 dwg