HYBRID RADIATION DETECTION APPARATUS USING PIXEL TYPE SCINTILLATION STRUCTURE

摘要

PURPOSE: A hybrid radiation detecting apparatus using a pixel-type phosphor structure is provided to prevent damage to TFTs(Amorphous Silicon Thin Film Transistors) of an image sensor and minimize after image or ghost phenomenon, thereby obtaining low-noise images. CONSTITUTION: A hybrid radiation detecting apparatus comprises an image sensor(110) and a pixel-type phosphor structure(120). The image sensor has a plurality of array-type pixel sensors. The pixel-type phosphor structure is attached to the top of the image sensor and comprises a plurality of pixel-type phosphors divided by partitions to correspond to the pixel sensors. The pixel-type phosphors change radiation into visible ray. The pixel sensors create electron-hole in a PCL(Photo Conductive Layer) in proportion to the visible ray provided from the corresponding phosphor and read out reads an electric signal corresponding to the electron-hole through a readout circuit.