초록 ▼

A radiology device includes an X-ray source for exposing a subject to the radiation of said source, a converter for converting the X-rays into optical images so as to form primary optical images, a transformer for transforming the primary optical images into secondary optical images, and a display f

A radiology device includes an X-ray source for exposing a subject to the radiation of said source, a converter for converting the X-rays into optical images so as to form primary optical images, a transformer for transforming the primary optical images into secondary optical images, and a display for displaying the secondary images to a user. The transformer includes an optical chain including, in succession, from the output of the converter to the output of the device, an image enlargement assembly exposed directly to the primary images from the converter, an assembly for optical intensification of the enlarged images, and a photosensitive matrix sensor for making the secondary images.

대표청구항 ▼

The invention claimed is: 1. A radiology device, comprising: an X-ray source for exposing a subject to radiation from said source; means for converting the X-rays into optical images so as to form primary optical images; a combination of n modules, n being an integer equal to or greater than two, e

The invention claimed is: 1. A radiology device, comprising: an X-ray source for exposing a subject to radiation from said source; means for converting the X-rays into optical images so as to form primary optical images; a combination of n modules, n being an integer equal to or greater than two, each module forming a secondary optical image, each module having a module range of intensities expressed as the ratio between the maximum intensity which, can be detected and the minimum intensity which can be detected, each module having a gain from an image intensifier; n-1 beam splitters, each beam splitter transmitting a transmitted beam of an intensity equal to a given ratio of an intensity of an incident beam and reflecting a reflected beam of an intensity equal to a remainder of the intensity of the incident beam; each beam splitter being further arranged so that the beam respectively reflected by the beam splitter is directed onto a module associated to the beam splitter, and the beam respectively transmitted by the beam splitter is directed to another beam splitter or another module, the radiology device further comprising: means for retrieving the n secondary images formed by the modules and for combining them on a time-coherent basis; and means for displaying the secondary images to a user, wherein each module is selectively and temporarily gated, each module being gated during a time window defining a specific gate conversion factor, the radiology device further comprising synchronizing means, connected to the x-ray source and to each module, for synchronizing the gating of each module with an x-ray pulse from the x-ray source, wherein each module comprises: an optical chain, comprising in succession, from an output of the means for converting to an output of the module: an assembly for optical intensification of the images; and a photosensitive matrix sensor for forming said secondary images. 2. A radiology device according to claim 1, wherein a global range between a minimum and a maximum of intensity detectable by the combination of modules is wider than each module range. 3. A radiology device according to claim 1, wherein the synchronizing means are connected to at least one of the assembly for optical intensification and the photosensitive matrix sensor in each module. 4. A radiology device according to claim 1, wherein at least one module further comprises an image enlargement assembly in its optical chain. 5. The radiology device according to claim 4, wherein the image enlargement assembly is a variable enlargement assembly which enlarges the images according to a desired enlargement coefficient within a given range. 6. The radiology device according to claim 4, wherein the image enlargement assembly is made up solely of optical elements performing no discretization of the images. 7. The radiology device as claimed in claim 4, which comprises means for moving at least one element of the optical chain among a group consisting of the assembly for optical intensification of the images, the photosensitive matrix sensor and the image enlargement assembly, a movement being in a plane generally parallel to a midplane of the conversion means. 8. The radiology device according to claim 7, which comprises a central control unit for controlling the movement of the elements of the optical chain. 9. The radiology device according to claim 8, wherein the central control unit is physically distanced from other elements of the device. 10. The radiology device according to claim 1, which comprises means for monitoring the exposure and the degree of enlargement of the images. 11. The radiology device according to claim 1, wherein the assembly for optical intensification of the images comprises channel multiplier plate-type components. 12. The radiology device according to claim 1, which comprises means for digitizing the secondary images arising from the photosensitive matrix sensor. 13. The radiology device according to claim 12, which comprises interfaces for distributing the digitized secondary images destined for digital peripherals. 14. The radiology device according to claim 12, which comprises a screen for visualizing the digitized secondary images. 15. The radiology device according to claim 1, wherein the means for converting the X-rays into optical images consist of a fluoroscopy screen of the phosphor coating screen type. 16. The radiology device according to claim 1, wherein said optical chain is directed along a different axis from a normal to a midplane of the means for converting the X-rays into optical images, the radiology device further comprising: a mirror for deflecting the primary images to the optical chain; and a shield for protecting the optical chain from the X-rays. 17. The radiology device according to claim 1, wherein the optical chain comprises a refocusing lens. 18. The radiology device according to claim 1, which comprises a mirror for separating the images arising from the intensification assembly, and a digital video camera. 19. The radiology device according to claim 1, wherein the intensification assembly and the sensor are optically coupled by optical fibers. 20. A radiology process, comprising real-time medical examining a subject by means of a radiology device as claimed in claim 1. 21. A radiology process, comprising nondestructively qualitatively inspecting materials by means of a radiology device as claimed in claim 1, in particular in the industrial or maritime sector. 22. A radiology device according to claim 1, wherein each module is gated one time. 23. A radiology device according to claim 1, wherein each module is gated at two or more successive times following a single pulse of the x-ray source.