Patent ID: 9268041
Filing Date: 2016-02-23
CPC Classification: A61B,G01N,G01T

Claim Text:
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.