Patent ID: 8459869
Filing Date: 2013-06-11
Classification: A61B,G03B,H04N

Abstract:
1. An x-ray radiation detection device comprising: an x-ray radiation detector having a plurality of pixels for converting an x-ray radiation into signal charges and accumulating the signal charges, the signal charges accumulated in the individual pixels during an entry of the x-ray radiation being read out as an image signal of a radiographic image; a shock detector for detecting a shock given to the x-ray radiation detector; a self diagnostic circuit for analyzing an offset image in response to detection of the shock by the shock detector to diagnose whether or not the x-ray radiation detector is available, the offset image being formed from the signal charges accumulated in the individual pixels of the x-ray radiation detector after the shock detection without the entry of the x-ray radiation; and a cassette casing for containing the x-ray radiation detector, the shock detector, and the self diagnostic circuit, wherein the self diagnostic circuit analyzes the offset image, and finds out an abnormal portion in the offset image, and diagnoses whether or not the x-ray radiation detector is available based on a size or a position of the abnormal portion.