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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. [Proceedings Paper]

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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.

Item type: Proceedings Paper
ID code: 37562
Notes: IEEE Nuclear Science Symposium/Medical Imaging Conference, Portland, OR, OCT 19-25, 2003
Keywords: spatial resolution, imaging detector system, imaging detector, X-ray imaging, poisson equations, Physics
Subjects: Science > Physics
Department: Faculty of Science > Institute of Photonics
Related URLs:
    Depositing user: Pure Administrator
    Date Deposited: 09 Feb 2012 18:49
    Last modified: 17 Jul 2013 14:03

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