| 摘要 |
PROBLEM TO BE SOLVED: To provide a safe X-ray theraputic and diagnostic device capable of detecting and treating even a small affected part, which is economically reduced in size as it can be set even in a hospital. SOLUTION: In this X-ray diagnostic device, an X-ray shielding metal complex taken by a subject 7 is selectively accumulated in the affected part, and X-ray from X-ray generators 1 and 2 are radiated thereto to form the X-ray image of the affected part in a radiographic device 6. A metal target 3 for generating a characteristic X-ray belonging to an energy range such that the SN ratio of the X-rays reaching the radiographic device 6 is about 50 or more, the contrast of the X-ray transmitted by the metal complex accumulated in the affected part and the subject 7 is about 2% or more, and the X-ray energy is 40 keV or more is used, and the characteristic X-ray generated by colliding the electron beam generated in an electron generator 1 and accelerated by an electron accelerator 2 to the metal target 3 is used as irradiating X-ray.
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