Patent ID: 6239439
Filing Date: 2001-05-29
Classification: G01T,H04N

Abstract:
A radiation detecting device having a wavelength converter for converting radiation into photoelectrically convertible light and a plurality of pixels arranged in the form of a matrix which pixel comprises a sensor element for converting the light into an electric signal and a thin film transistor (TFT) for transfer connected to the sensor element to successively transfer a signal from the pixel, the detecting device comprising:a means for turning on the TFT to be turned on first among the TFTs for transfer after the delay of at least (n.times..tau..sub.1), wherein .tau..sub.1 is a time constant of a characteristic of the wavelength converter, and n is ln(SN) in which SN is a desired signal to noise ratio, after the irradiation is stopped, thereby transferring a signal stored in its corresponding pixel.