FIELD: physics.
SUBSTANCE: use for proton radiography. Summary of invention consists in the fact that in the camera for placing the object of investigation, a test object is first placed, which is a substrate with identical reference marks, for example, steel balls, in nodes of orthogonal grid and fixed in centre of substrate with extended element, for example, tube; performing adjustment of test object perpendicular to axis of magnetooptical system on digital image of proton beam, which is passed through a magnetooptical system and a camera with a test object, achieving angular displacement of the test object of the size of the through hole of the tube on the image of the actual geometrical size. To determine conformity between dimensions of test object on obtained image and its actual geometric dimensions, test-object image is used, on which through hole of tube corresponds to actual geometrical size. Between dimensions of test object during through calibration of scaling coefficient of image transfer in channel of formation and recording of images conformity is established by determination of pixel coordinates of centres of all steel balls and selection of projective transformation, allowing to translate installed pixel coordinates into known coordinates of centres of steel balls in plane of test object. Further, the test object is replaced with the analysed object and a digital image of the proton beam is obtained, which is passed through the magnetooptical system and the camera with the object of analysis. Projective transformation selected on test object image is then used to process images of survey object.
EFFECT: high quality and accuracy of processing registered proton images.
5 cl, 3 dwg
