Journal
NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT
Volume 563, Issue 1, Pages 96-99Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.nima.2006.01.099
Keywords
high-speed X-ray imaging; X-ray readout system; radiography
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High-speed X-ray-imaging acquisition technique is a growing field that can be used to understand microscopic mechanism of different phenomena in biology and material science. IFAE and CNM developed a very high-speed readout system, named DEMAS, for the Medipix2. The system is able to read a single Medipix2 chip through the parallel bus at a rate of 1 kHz. With a duty cycle of 50%, the real sampling speed is 500 frames per second (fps). This implies that 1 ms is allocated to the exposure time and another millisecond is devoted to the read-out of the chip. In such configuration, the raw data throughput is about 500 Mbit/s. For the first time we present examples of acquisition at 500 fps of moving samples with X-rays working in direct capture and photon counting mode. (c) 2006 Elsevier B.V. All rights reserved.
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