CMOS Flat-Panel X-ray Detector With Dual-Gain Active Pixel Sensors and Column-Parallel Readout Circuits

This paper proposes a CMOS flat-panel X-ray detector (FPXD) with dual-gain active pixel sensors (APSs) and column-parallel readout circuits to reduce the random noise. The proposed dual-gain APS employs the conversion gain control in a pixel sensor array and supports both high and low sensitivity mo...

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Veröffentlicht in:	IEEE transactions on nuclear science 2014-10, Vol.61 (5), p.2472-2479
Hauptverfasser:	Jo, Yun-Rae, Hong, Seong-Kwan, Kwon, Oh-Kyong
Format:	Artikel
Sprache:	eng
Schlagworte:	Active pixel sensors Amplification Capacitance Circuits CMOS CMOS integrated circuits CMOS X-ray detector column-parallel readout Conversion dual-gain pixel Gain Generators medical X-ray imaging Noise Pixels Radiation detectors Ramps Sensitivity single-slope analog-to-digital converter (SS-ADC) Timing
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