Comparison of CsI(Tl) and CsI(Na) partially slotted crystals for high-resolution SPECT imaging
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- 作者：N. Giokaris ; G. Loudos ; D. Maintas ; A. Karabarbounis ; M. Lembesi ; V. Spanoudaki ; E. Stiliaris ; S. Boukis ; N. Sakellios ; N. Karakatsanis ; et al.
- 关键词：Scintillators ; Partially slotted crystals ; SPECT ; PSPMTs ; High-resolution
- 刊名：Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
- 出版年：2006
- 出版时间：20 December 2006
- 年：2006
- 卷：569
- 期：2
- 页码：185-187
- 全文大小：126 K
文摘
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).