| 摘要 |
PROBLEM TO BE SOLVED: To provide a fixed anode X-ray tube which can enhance an X-ray output and an X-ray radiographic device including the fixed anode X-ray tube.SOLUTION: The fixed anode X-ray tube includes a cathode 11 having a first filament 11F1 emitting electrons and a second filament 11F2 emitting electrons, an anode 13 having a target 13A in which, a first focal point 13T1 to which the electrons emitted form the first filament 11F1 collide and a second focal point 13T2 to which the electrons emitted from the second filament 11F2 collide and which is separated from the first focal point 13T1, are formed, and a vacuum outer envelope 14 housing the cathode 11 and the anode 13. |
