Cita:
IEEE Transactions on Nuclear Science, vol. 57, n. 5, oct. 2010. Pp. 2437-2441
ISSN:
0018-9499
DOI:
10.1109/TNS.2010.2052367
Agradecimientos:
This work was supported in part by the CENIT Program (Ministerio de Industria), Comunidad de Madrid program ARTEMIS-P2009/DPI-1802, TEC2007-64731/TCM (Ministerio de Educación y Ciencia), and the RETIC-RECAVA, ISCIII. The contribution of J. Seidel wa supported in whole or in part with federal funds from the National Cancer Institute, National Institutes of Health, under Contract HHSN261200800001E.
Super Bialkali (SBA) photocathode is a new technology
that improves the spectral response characteristics of
position sensitive PMTs, boosting their quantum efficiency up
to 35%. In this experiment, two SBA tubes were introduced
into a production line of PSuper Bialkali (SBA) photocathode is a new technology
that improves the spectral response characteristics of
position sensitive PMTs, boosting their quantum efficiency up
to 35%. In this experiment, two SBA tubes were introduced
into a production line of PET detectors mixed with the regular
tubes. The detectors were assembled using the standard factory
protocols for detector mounting, calibration and testing. We
report an evaluation of the improvement introduced by the SBA
photocathode comparing the spatial and energy resolution and the
depth-of-interaction (DOI) performance of PET detector modules
with DOI capabilities.We conclude that the superior performance
of the SBA tube may enable the use of arrays with a larger number
of crystals of smaller footprint, thus potentially improving the
detector intrinsic spatial resolution without degrading the energy
resolution or the phoswich (DOI) discrimination capability.[+][-]
