FIELD: physics.
SUBSTANCE: method includes forming a proton beam, transmitting said beam through an object under analysis, passing the transmitted radiation through magnetic optics consisting of quadrupole lenses, the arrangement of which is pre-selected using a method based on solving the task of minimising the function of a plurality of variables, using a corresponding optimisation program, the information-bearing parameters of which are the energy of the proton beam, the magnification factor of the magnetic optics, the variation range of movements of the quadrupole lenses along the optical axis and the variation range of magnetic field gradients in the quadrupole lenses, subsequent formation of the image in the recording plane and recording thereof. When forming the proton beam, protons are accelerated to energy of at least 20 GeV. The information-bearing parameters are supplemented with proton energy spread after passing through the object under analysis, a chromatic aberration correction factor which is determined based on the condition of obtaining an aberration-free focusing spot of the proton beam in the recording plane and total distance from the object under analysis to the recording plane.
EFFECT: higher accuracy of transmitting an image by reducing chromatic aberrations, broader functional capabilities of the method owing to a wider range of thickness of the analysed objects.
3 cl, 3 dwg, 2 tbl
