Author/Authors :
Giokaris، نويسنده , , N. and Loudos، نويسنده , , G. and Maintas، نويسنده , , D. and Karabarbounis، نويسنده , , A. and Lembesi، نويسنده , , M. and Spanoudaki، نويسنده , , V. and Stiliaris، نويسنده , , E. and Boukis، نويسنده , , S. and Sakellios، نويسنده , , N. and Karakatsanis، نويسنده , , N. and Gektin، نويسنده , , A. and Boyarintsev، نويسنده , , A. and Pedash، نويسنده , , V. and Gayshan، نويسنده , , V.، نويسنده ,
Abstract :
Dedicated systems based on Position Sensitive Photomultiplier Tubes (PSPMTs) coupled to scintillators, have been used over the past years for the construction of compact systems, suitable for applications such as small animal imaging and small organs imaging. Most of the proposed systems are based on fully pixelized scintillators. Previous studies have shown that partially slotted scintillators offer a good compromise between cost, energy resolution and spatial resolution. In this work, the performance of two sets of CsI(Tl) and CsI(Na) partially slotted crystals is compared. Initial results show that CsI(Tl) scintillators are more suitable for gamma-ray detection, since their performance in terms of sensitivity, spatial and energy resolution is superior than that of CsI(Na).
Keywords :
Scintillators , SPECT , Partially slotted crystals , PSPMTs , high-resolution
