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Discover open research at Strathprints as part of International Open Access Week!

23-29 October 2017 is International Open Access Week. The Strathprints institutional repository is a digital archive of Open Access research outputs, all produced by University of Strathclyde researchers.

Explore recent world leading Open Access research content this Open Access Week from across Strathclyde's many research active faculties: Engineering, Science, Humanities, Arts & Social Sciences and Strathclyde Business School.

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Spatial resolution of the Medipix2 X-ray imaging detector system

Davidson, D.W. and Tlustos, L and Mathieson, K and O'Shea, V and Smith, K.M. and Rahman, M (2004) Spatial resolution of the Medipix2 X-ray imaging detector system. In: 2003 IEEE Nuclear Science Symposium Conference Record. IEEE NUCLEAR SCIENCE SYMPOSIUM - CONFERENCE RECORD, 3 . IEEE, pp. 2727-2729. ISBN 0-7803-8257-9

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Abstract

The charge sharing present in a 55 micrometer square pixel matrix of 300 micrometer thick silicon is examined. This is achieved using a commercial simulation package to investigate the diffusion effects on the charge cloud of created electrons and holes. The total fraction of charge shared is found to be 20.8%, but this can be reduced by the addition of a minimum threshold level of detection. The optimum level giving all of the signal but with the minimum of noise is found to leave 10.4% charge shared on average.