| 摘要 |
PROBLEM TO BE SOLVED: To acquire desired radiation image information without the need for applying an excessive amount of a radiation to a subject by highly accurately setting the irradiation region of the radiation corresponding to the imaging range of the subject with a fixed member mounted thereon. SOLUTION: The image of the subject 12 with the fixed member 11 mounted thereon is imaged by a CCD camera 36. The range of the fixed member 11 and the irradiation region of the radiation X are calculated. The positions of a radiation source 14 and a collimator 32 are adjusted so as to match the range and irradiation region; then the radiation source 14 is driven under a plurality of different imaging conditions to irradiate the subject 12 with the radiation X through the fixed member 11, and the radiation image information is recorded in a radiation solid-state detector 18. By executing a weighted subtractive process according to a processing condition in an image processing part 20 to each recorded radiation image information, the desired radiation image of the subject 12 from which the fixed member 11 is removed is displayed at a display part 28. COPYRIGHT: (C)2009,JPO&INPIT
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