Abstract:
엑스선검출기를제공한다. 본엑스선검출기는제1 영역및 제2 영역으로구성된실리콘기판, 제1 영역에배치되며엑스선을검출하는복수개의픽셀, 제2 영역에배치되며복수개의픽셀에공통의제어신호를공급하는제어패드, 제1 영역에배치되며복수개의픽셀중 그룹핑된픽셀단위로전원을공급하는전원패드를포함한다.
Abstract:
Disclosed is a photon counting detector for detecting a photon included in a multi-energy X-ray. The photon counting detector includes a pixel area to which the photon is exposed, and a bias circuit for supplying a bias voltage or current. The bias circuit is positioned within the pixel area.
Abstract:
A driver circuit according to an embodiment of the present invention counts photons by classifying the photons depending on an energy band and outputs the counting result to a column line. The driver circuit comprises: a multiplexer receiving the results from a counter; a driving inverter receiving a signal from the multiplexer and a power supply unit; and a first switch connected between the power supply unit and an input terminal of the driving inverter.
Abstract:
PURPOSE: A digital silicon photomultiplier detector cell improves energy resolution by counting radiation at the outside in real time regardless of memory capacity and measuring the amount of the radiation. CONSTITUTION: A scintillator (110) generates light by receiving radiation. A detector unit (130) generates a digitalized detection signal by receiving light of a wavelength in a specific range. The detector unit includes a photodiode and an active reset part connected to the cathode of the photodiode. A read-out unit (150) transmits a generated output signal corresponding to the detection signal generated in the detector signal to an external circuit. The read-out unit does not store the detection signal within a detector cell.