RADIATION IMAGE CAPTURING APPARATUS

PROBLEM TO BE SOLVED: To easily acquire life-sized image information from a radiation conversion panel at an arbitrary position, based on radiation image information that has already been acquired. SOLUTION: A first radiation image capturing apparatus 10A that includes the radiation conversion panel 16 comprises an input device 104 for inputting a first distance from the position of the radiation conversion panel 16 to a position serving as a reference position for a subject at least, a distance measuring means 106 for measuring a second distance from a radiation source to the radiation conversion panel 16, a first radiation field calculating means 108 for determining a radiation field at the position of the radiation conversion panel 16 based on setting information of the radiation source and the second distance, a second radiation field calculating means 110 for determining a hypothetical radiation field at the reference position of the subject based on the setting information of the radiation source, the first distance, and the second distance, and a life-size correcting means 114 for executing life-size correction based on the information of the calculated radiation field and the information of the calculated hypothetical radiation field and turning the radiation image information from the radiation conversion panel 16 to the life-sized image information. COPYRIGHT: (C)2009,JPO&INPIT