CT scanner, defocusing intensity measurement method of CT scanner and defocusing correction method of CT scanner
A scanner and intensity technology, which is applied in the field of defocus correction, can solve the problems of inconsistency in defocus radiation, inaccurate defocus correction coefficients, etc., and achieves the effects of strong adaptability, reduced data volume, and convenient operation.
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[0026] figure 1 A schematic diagram showing a CT scanner imaging system according to an embodiment of the present invention. refer to figure 1 As shown, CT scanner 100 includes a gantry 110 including a rotation mechanism having an aperture 111 . An X-ray tube 112 is provided on one side of the aperture 111 . The X-rays generated by the X-ray tube 112 are mainly emitted from the focal point O, and then directed to the object to be irradiated (such as a human body) located in the aperture 111 . The other side of the aperture 111 is provided with a detector array 114 for detecting the intensity of X-rays passing through the object to be irradiated. When the X-ray tube 112 and the detector array 114 are arranged on the rotating mechanism, when the rotating mechanism rotates, through the continuous irradiation of the X-ray tube 112 and the continuous detection of the detector array 114, various angles of the irradiated object can be obtained. radiation intensity.
[0027] In t...
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