Pani, R and Cinti, MN and Scafe, R and Soluri, A and Pellegrini, R and Indovina, L and De Vincentis, G and Trotta, G and Burgio, N and Ciavola, C and Garibaldi, F and Urcioli, GM and Zavattini, G and Di Domenico, G and Bollini, D and Lanconelli, N and Olivo, A and Pani, S and RIgon, L and Del Guerra, A (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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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
|Title:||Imaging evaluation of CsI(Tl) arrays for scintimammography|
|Event:||IEEE Nuclear Science Symposium|
|Location:||Lyon , France|
|Dates:||2000-10-15 - 2000-10-20|
|UCL classification:||UCL > School of BEAMS > Faculty of Engineering Science > Medical Physics and Bioengineering|
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