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A high efficiency single photon counting silicon matrix for position sensitive X-ray detection

Arfelli, F; Bonvicini, V; Bravin, A; Cantatore, G; Castelli, E; Dalla Palma, L; Di Michiel, M; ... Vallazza, E; + view all (1998) A high efficiency single photon counting silicon matrix for position sensitive X-ray detection. In: Nalcioglu, O, (ed.) (Proceedings) 1997 IEEE Nuclear Science Symposium and Medical Imaging Conference. (pp. pp. 304-307). IEEE: NEW YORK, NY 10017 USA.

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Abstract

The SYRMEP collaboration (Synchrotron Radiation for Medical Physics) is developing a novel imaging device to be used with a laminar monochromatic synchrotron radiation X-ray beam for applications in digital mammography. Its main components are silicon microstrip detectors and a dedicated VLSI readout chip based on the single photon counting concept. The innovative geometry - several overlapped detectors with strips parallel to the beam direction - determines a matrix of pixels, each of them having an area of 200x300 mu m(2), which can detect up to 10(6) photons/(mm(2) s) with 90% efficiency at 25 keV. Front-end and readout electronics are expandable in a modular fashion and can be coupled to successive receptor versions with increasing number of channels, while a VME based DAQ system offers full testing facilities. In our view this system is providing specific and original contributions to digital mammography but it could also be useful in other modern radiology fields.

Type: Proceedings paper
Title: A high efficiency single photon counting silicon matrix for position sensitive X-ray detection
Event: 1997 IEEE Nuclear Science Symposium and Medical Imaging Conference
Location: ALBUQUERQUE, NM, US
Dates: 09 November 1997 - 15 November 1997
ISBN: 0-7803-4259-3
Publisher version: http://www.ieeexplore.ieee.org/
UCL classification: UCL > Provost and Vice Provost Offices
UCL > Provost and Vice Provost Offices > UCL BEAMS
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science > Dept of Med Phys and Biomedical Eng
URI: http://discovery.ucl.ac.uk/id/eprint/116811
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