| 摘要 |
PROBLEM TO BE SOLVED: To easily obtain the appropriate X-ray intensity during the radiography while reducing the X-ray dose. SOLUTION: The radiographic X-ray equipment comprises an X-ray tube for irradiating a subject with X rays; an FPD 4 for detecting X rays emitted from the X-ray tube; an image processing means 10 for processing the X rays detected by the FPD 4 and generating and outputting image data; an image display monitor 8 for displaying the image data output from the image processing means 10; and an X-ray condition setting means 6 for setting a condition for the X rays to be emitted from the X-ray tube. The X-ray intensity of each pixel detected by the FPD 4 during the radiography is stored in an X-ray intensity storing means 11. The X-ray intensity of pixels within an X-ray intensity measuring region set by an X-ray intensity measurement region setting means 9 is extracted from the X-ray intensity storing means 11 and the maximum X-ray intensity is selected. The maximum X-ray intensity and a necessary X-ray intensity are compared with each other and the X-ray intensity to be emitted is computed by an emission X-ray intensity computing means 14. Then, the X-ray intensity to be emitted set by the X-ray condition setting means 6 is controlled so that the intensity becomes the computed X-ray intensity. COPYRIGHT: (C)2008,JPO&INPIT
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