[en] The facility scans the unreduced X-ray image by means of moving line sensors which work in parallel. The length of the sensors is much smaller than the width of the image. The facility comprises about 20 identical modules, owing to which the output of the serial manufacture can be increased, and CCD-based line sensors can be employed which are very sensitive and inexpensive. The X-ray image can be taken at the virtually lowest exposure possible, and owing to the parallelization of the scanning process, the scanning rate can be increased considerably as compared with the existing facilities. The facility consists of an ionizing radiation source against which are positioned a movable diaphragm fitted with slits and a movable support plate carrying the line sensors. The sensors make up the line detector whose length is equal to that of the image scanned, synchronously movable with the movable slit diaphragm. (M.D.). 3 figs