Patent ID: 8981304
Filing Date: 2015-03-17
Classification: G01T

Abstract:
1. A radiation detector, comprising: a wavelength conversion unit that converts irradiated radiation having a first wavelength into radiation having a second wavelength, said second wavelength corresponding to light; a first substrate that has a first surface and a second surface different from the first surface; a plurality of radiation detecting pixels, disposed in a matrix on the first surface, that accumulate charges generated due to irradiation of the radiation having the second wavelength, and that include switching elements to read out the accumulated charges; a plurality of scan lines, provided on the first surface, through which a control signal, that switches each switching element provided in each radiation detecting pixel, flows; a plurality of signal lines, provided on the first surface, through which an electric signal flows, the electric signal corresponding to the charges accumulated in each radiation detecting pixel according to a switching state of each switching element; a second substrate, provided on the second surface of the first substrate, that includes a plurality of radiation irradiation detecting sensors, disposed in a matrix on an entire surface of the second substrate, that generate charges due to irradiation of the radiation having the second wavelength corresponding to light being irradiated onto the first surface and emitted from the second surface; radiation irradiation detecting lines, each connected to one of the radiation irradiation detecting sensors, through which electric signals corresponding to the charges generated by the radiation irradiation detecting sensors flow; and a radiation irradiation control device, connected to each of the radiation irradiation detecting lines, that detects an irradiation amount of radiation having the first wavelength, and controls a radiation source to irradiate the radiation having the first wavelength on the basis of the detected irradiation amount.