FIELD: generation of internal structure of object, biological object in particular, in visually recognized form.
SUBSTANCE: device has X-ray tube 1 with planar shoot-through anode 2. First collimator 5 with perforated channels 4 is positioned between X-ray tube and examined object. Means 16 carrying matrix of detectors 17 detects secondary radiation excited in substance of examined object. Second collimator 9 with perforated or slit channels is located between object and means 16. Position of radiating spot 3 of tube 1 on surface of its anode 2 is scanned with the help of aid 6 controlling electron beams. Spot 3 occupies in turn position in front of inputs of different channels of collimator 5. Signal carrying information on density of substance of object 8 in crossing zone of continuation of that channel of first collimator across which input radiation of tube 1 is detected and in continuation of one channel of second collimator 9 emerges across output of one detector 17 of aid 16. This signal arrives at input 18 of unit 19.1 of information processing that is part of unit 19 of information processing and display. Information on current position of electron beam and consequently, on radiating spot 3 goes to input 20 of unit 19.1 from aid 6. According to another variant such information is carried by modulation of radiation of tube 1 and above-mentioned communication between aid 6 and unit 19.1 does not exist. These data and known relative positions of channels of collimators 5 and 9 in unit 19.1 distribution of density of substance over entire volume of object 8 are found. Result in the form of two-or three-dimensional picture 21 is displayed on monitor 19.2, which is part of unit 19. Device can be supplemented with additional collimator 9a and means 16a with detectors 17a and aid 28 for detection of radiation of tube 1 passed through object 8 and for generation of shadow projection 29 of its internal structure.
EFFECT: avoidance of mechanical scanning with preservation of excited secondary radiation (scattered Compton coherent and noncoherent radiation, fluorescent radiation) in the capacity of informative factor, reduced beam load on object.
20 cl, 18 dwg
