Radiographic image detection device, radiographic image detection method, and computer-readable storage medium

摘要

A radiographic image detection device includes: an image pickup unit with plural radiation detection portions arrayed in a two-dimensional form and detect radiation, and that captures a radiographic image; a radiographic image generating unit having plural analog signal generating units that generate analog signals corresponding to radiation doses; a conversion unit that converts the generated analog signals into digital signals; a judging unit that judges whether or not level fluctuations of the generated analog signals are within a predetermined threshold value; and a control unit that controls the conversion unit such that an analog signal, at which it is judged that the level fluctuation is within the predetermined threshold value, is converted into a digital signal, and that controls the conversion unit such that an analog signal, at which it is judged that the level fluctuation has exceeded the predetermined threshold value, is not converted into a digital signal.

主权项

1. A radiographic image detection device comprising:
an image pickup unit, that has a plurality of radiation detection portions that are arrayed in a two-dimensional form and that detect radiation, and that captures a radiographic image expressed by radiation that has been transmitted through an object of imaging and is incident on the image pickup unit; a radiographic image generating unit having a plurality of analog signal generating units that are provided in respective correspondence with the plurality of radiation detection portions and that each generate an analog signal corresponding to a radiation dose detected at the corresponding radiation detection portion; a conversion unit that converts the analog signals, that are generated respectively at the plurality of analog signal generating units, into digital signals; a judging unit that is configured to monitor a level fluctuation of the analog signal by directly monitoring a waveform of the analog signal over a predetermined minute time and judges whether or not the level fluctuation, over the predetermined minute time of the analog signal generated at each of the plurality of analog signal generating units is within a predetermined threshold value; and a control unit that controls the conversion unit such that an analog signal, at which it is judged by the judging unit that the level fluctuation is within the predetermined threshold value, is converted into a digital signal, and that controls the conversion unit such that an analog signal, at which it is judged that the level fluctuation has exceeded the predetermined threshold value, is not converted into a digital signal.