| 摘要 |
PROBLEM TO BE SOLVED: To provide an X-ray CT device for contributing to the improvement in diagnosis accuracy by composing an accurate radiation detector for preventing the deviation between a collimator plate and a scintillator, using the radiation detector for an X-ray CT device, and acquiring a high-quality tomographic image without ring artifacts. SOLUTION: The radiation detector is composed of a plurality of photoelectric conversion elements 11 that are arranged on a substrate, a scintillator 10 that is arranged on the photoelectric transducing element 11 and is divided into a plurality of parts corresponding to each photoelectric conversion element, and a plurality of collimator plates that control an amount of incidence of radiation to each divided scintillator and are supported by resin. The radiation detector is used as a radiation detector for an X-ray CT device, and crosstalk by scattered rays is reduced, thus obtaining a high-quality tomographic image without ring artifacts.
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