Synchrotron tests of a 3D Medipix2 x-ray detector

Pennicard, D. et al. (2010) Synchrotron tests of a 3D Medipix2 x-ray detector. IEEE Transactions on Nuclear Science, 57(1), pp. 387-394. (doi: 10.1109/TNS.2009.2037746)

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Three-dimensional (3D) photodiode detectors offer advantages over standard planar photodiodes in a range of applications, including X-ray detection for synchrotrons and medical imaging. The principal advantage of these sensors for X-ray imaging is their low charge sharing between adjacent pixels, which could improve spatial and spectral resolution. A ‘double-sided’ 3D detector has been bonded to a Medipix2 single-photon-counting readout chip, and tested in a monochromatic X-ray beam at the Diamond synchrotron. Tests of the 3D detector’s response spectrum and its Line Spread Function have shown that it has substantially lower charge sharing than a standard planar Medipix2 sensor. Additionally, the 3D detector was used to image diffraction rings produced by a powdered silicon sample, demonstrating the detector’s use in a standard synchrotron experiment.

Item Type:Articles
Glasgow Author(s) Enlighten ID:Bates, Dr Richard and Parkes, Dr Christopher and O'Shea, Professor Val
Authors: Pennicard, D., Marchal, J., Fleta, C., Pellegrini, G., Lozano, M., Parkes, C., Tartoni, N., Barnett, D., Dolbnya, I., Sawhney, K., Bates, R., O'Shea, V., and Wright, V.
College/School:College of Science and Engineering > School of Physics and Astronomy
Journal Name:IEEE Transactions on Nuclear Science
Publisher:Institute of Electrical and Electronics Engineers
ISSN (Online):1558-1578

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Project CodeAward NoProject NamePrincipal InvestigatorFunder's NameFunder RefLead Dept
4078043D Detectors for Synchrotron ApplicationsChristopher ParkesEngineering & Physical Sciences Research Council (EPSRC)EP/D014573/1Physics and Astronomy