Radiation detector, radiographic image capturing system, radiation detection method, radiation detection program storage medium, and controller

摘要

A radiation detector includes a detecting means, a detection controlling means, an image analyzing means and a determining means. The detecting means detects radiographic image data by plural pixels that convert applied radiation into electrical signals and store the electrical signals. The detection controlling means controls the detecting means so as to determine that radiation has been applied if a read value obtained by reading the electric signals stored in the plural pixels is equal to or greater than a threshold value, and acquire radiographic image data corresponding to radiation that has passed through a subject. The image analyzing means performs an image analysis with respect to the radiographic image if the read value is equal to or greater than the threshold value. The determining means determines based on the result of the image analysis whether or not the radiographic image has been detected at an intended timing.