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[Bi-dimensional correction of x-ray images].

The frequency and contrast characteristics of the unit of the shadow image formation point to a material weakening of the high-frequency components in the spectrum of spatial frequencies already during the formation of the X-ray image. To compensate for this weakening that also takes place in other subassemblies of the television X-ray installation the introduction of an aperture corrector is necessary. As such a corrector in transmitting an image of little mobile objects a bidimensional aperture corrector set up on the transmitting television tube can be effectively used.