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12-16 September 2005
University of Liverpool
Europe/Zurich timezone

A compact PC-based X-ray Imaging System

15 Sep 2005, 10:30
University of Liverpool

University of Liverpool

Greenbank Conference Park
Board: P4
Contributed Poster X-ray and Gamma-ray Detectors P : Coffee and Poster Session


Mr Asimakis Asimidis (University of Ioannina)


A portable PC-based X-ray imaging system has been developed based on a 2D silicon microstrip detector and particle physics readout electronics. The sensor is housed in a specially built hybrid, which also hosts the front-end electronics. This hybrid is attached to the PC with a flat cable which makes it a flexible probe. The hybrid, including the sensor was developed earlier in the framework of the EU FP4-Biomed-BRSMS project. The control and the readout electronics used are based on the standard PCI and PMC architectures and were originally developed for High Energy Physics Experiments. The use of PCI based electronics and the development of the control software for the PC-Linux platform led to a compact, portable, low cost imaging system. The system was initially tested and evaluated with beta particles from a 90Sr radioactive source, gamma rays from a 241Am radioactive source and cosmic rays, and it displayed consistent response. It was then operated using a compact X-ray machine with Mo tube and images of various targets were reconstructed offline using the ROOT data analysis package. Typical exposure times, to achieve image quality comparable to film imaging, were long. Shorter exposure times required for medical applications could be accomplished with the use of faster front-end chips.

Primary author

Mr Asimakis Asimidis (University of Ioannina)

Presentation materials