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MUTI-ELEMENT X-RAY RADIATION DETECTOR, RARE EARTH X-RAY LUMINOPHORE THEREFOR, AND METHOD FOR FORMING A MULTI-ELEMENT SCINTILLATOR AND DETECTOR AS A WHOLE
MUTI-ELEMENT X-RAY RADIATION DETECTOR, RARE EARTH X-RAY LUMINOPHORE THEREFOR, AND METHOD FOR FORMING A MULTI-ELEMENT SCINTILLATOR AND DETECTOR AS A WHOLE
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机译:多元素X射线辐射探测器,稀土X射线荧光增白剂及其形成多元素闪烁体和探测器的方法
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摘要
The invention relates to X-ray technology and medical diagnostics, and car be used for carrying our gamma flaw detection on various articles and piping systems. The technical result is an increase in contrast of the integrated image that is produced. A multi-element X-ray radiation detector consists of a flat multi-element scintillator in the form of a discrete set of hetero-phase luminescent elements whicn are arranged in the cells of a mesh made from a metal which absorbs X-ray radiation and reflects light, the increment size of which mesh corresoonds to the increment size of the photo receiver matrix. The metallic mesh that forms the multi-element luminescent scintiilatcr is made from elements having an atomic number from M = 26 (iron) to N = 74 (tungsten), has silver-plated coils and separates the scintillator elements optically from one another. The coils of the mesh have a diameter from 0.06 mm to 0.15 mm, and the area of the effective cross section of the mesh is between 45% to 82%. The scintillator consists of an X-ray luminophore based on a multi-ligand oxysulphide of gadolinium-lutetium-europium with the addition of bismuth and rherium, and also fluorine, chlorine, bromire ard iodine. The process of synthesis is carried out in two stages. In the first stage, oxyhalides of the elements making up a cationic subgroup are formed by reacting the initial coprecipitated oxides of rare earth elements, Bi and Re, with ammonium halides. The resulting product is then subjected to repeated thermal treatment in an alkali chalcogenide melt
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