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

摘要

A radiation detector includes an image data detecting unit that detects, as radiographic image data, charge information corresponding to applied radiation; a control unit that determines that radiation has been applied if a read value of the detected charge information is equal to or greater than a threshold value and controls the image data detecting unit to acquire radiographic image data corresponding to radiation that has passed through a subject; and a changing unit that changes the threshold value in accordance with temperature data of the image data detecting unit.

主权项

1. A radiation detector comprising:
an image data detecting unit that detects, as radiographic image data, charge information corresponding to applied radiation, wherein the image data detecting unit detects offset data after the radiation detector having received imaging conditions from an external controller, the offset data is obtained by performing for a predetermined period detection by the image data detecting unit without applying radiation; a changing unit that changes a threshold value in accordance with temperature data of the image data detecting unit, wherein a maximum value of the offset data is used as the temperature data; and a control unit that determines, while keeping the threshold value unchanged, that radiation has been applied if a read value of the detected charge information is equal to or greater than the threshold value and, if it is determined that application of radiation has been started, controls the image data detecting unit to acquire radiographic image data corresponding to radiation that has passed through a subject.