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Imaging evaluation of CsI(Tl) arrays for scintimammography

Pani, R; Cinti, MN; Scafe, R; Soluri, A; Pellegrini, R; Indovina, L; ... Del Guerra, A; + view all (2000) Imaging evaluation of CsI(Tl) arrays for scintimammography. In: Nuclear Science Symposium Conference Record, 2000 IEEE. (pp. 21/105 - 21/108). IEEE: NEW YORK, NY 10017 USA.

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Abstract

We propose the use of Hamamatsu R7600-C8 position sensitive photomultiplier tubes (PSPMTs) as a practical tool for imaging in scintimammography, through the evaluation of performance as a function of scintillation array pixellation in collimated configurations. A number of CsI(Tl) scintillating arrays with different pixel size and thickness are tested. The very high intrinsic spatial resolution of R7600 PSPMTs made it easy to implement a look up table to correct accurately the gain nonuniformity response and position distortion. Finally, an SNR analysis of a small tumor in scintimammography as a function of crystal pixellation is performed by means of a simple breast phantom

Type:Proceedings paper
Title:Imaging evaluation of CsI(Tl) arrays for scintimammography
Event:IEEE Nuclear Science Symposium
Location:Lyon , France
Dates:2000-10-15 - 2000-10-20
ISBN:0-7803-6503-8
DOI:10.1109/NSSMIC.2000.949361
Publisher version:http://www.ieeexplore.ieee.org/
UCL classification:UCL > School of BEAMS > Faculty of Engineering Science > Medical Physics and Bioengineering

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