Patent ID: 6044128
Filing Date: 2000-03-28
Classification: G01T,H01L,H05G

Abstract:
An x-ray imaging apparatus comprising:an x-ray--electric charge conversion device configured to generate an electric charge in correspondence with an intensity of an incident x-ray;plural pixel electrodes configured to collect the electric charge generated in the X-ray--electric charge conversion device;plural charge storage devices corresponding to said plural pixel electrodes and configured to store electric charge collected by respective of said pixel electrodes;plural charge reading devices corresponding to said plural charge storage devices and configured to read the charge stored in respective of said charge storage devices; andplural thin film diodes, each having a terminal connected to a respective said pixel electrodes and connected in parallel to a respective charge storage device, configured to discharge electric charge stored in the respective charge storage device when an output voltage of the respective charge storage device is greater than a predetermined value, so that the thin film diodes prevent said charge storage devices from destruction by excessive voltage.