Abstract
An interface has been developed to capture frames taken by X-ray array imagers up to 64x64 pixels. An application specific integrated circuit (IASIC) designed solely for X-ray flat panel imaging readout circuitry, manufactured by FLIR (R) called Indigo (also known as ISC9717), was used as part of charge-amplifier block. An Altera Cyclone II FPGA is used to serve three purposes: Create pulses required for gate-driver block, Receive fast-stream data coming from the Indigo chip, and Send data through RS-232 protocol over a serial cable to a personal computer.
Initial results for a 32x32 passive pixel sensor (IPPS) with lateral amorphous Selenium metal-semiconductor-metal (MSM) photodetector were presented in [1]. This work focuses more on methods used to improve the images obtained from the array. Sharper images produced in sync with the light source are presented. In addition, insight into array readout circuitry and capturing a frame from an array is discussed.