X-ray fluoroscopy apparatus, moving body tracking apparatus for radiotherapy and X-ray detector

摘要

An X-ray imaging mechanism having an X-ray tube 1 and a flat panel detector 2 for detecting X-rays that have passed through the subject 57; a treatment beam B is irradiated on the subject 57 to the flat panel detector 2 A filter 23 for forming a region for correction in which the scattered radiation S generated by irradiating the X-ray tube 1 but not irradiated by the X-ray tube 1 and passing through the examinee 57 does not enter, a correction in the flat panel detector 2 And correcting data of an area other than the correction area in the flat panel detector 2 using the data of the area for use.