Pulse shape discrimination of LSO and LuYAP scintillators for depth of interaction detection in PET
Pulse shape discrimination of LSO and LuYAP scintillators for depth of interaction detection in PET
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DOI：
10.1109/nssmic.2002.1239637
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发表时间：
2002-11
期刊：
影响因子：
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通讯作者：
A. Streun;G. Brandenburg;H. Larue;H. Saleh;E. Zimmermann;K. Ziemons;Horst Halling
中科院分区：
文献类型：
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作者：
A. Streun;G. Brandenburg;H. Larue;H. Saleh;E. Zimmermann;K. Ziemons;Horst Halling
在PET扫描仪中获得相互作用深度信息的可行方法是使用phoswich探测器。通常，相互作用层是根据相应闪烁体材料的脉冲形状来识别的。在这项工作中，从LSO和LuYAP晶体脉冲进行了研究，以找到一个实用的方法来区分。事实证明，由于LuYAP脉冲的光衰减中的额外慢分量，这样的脉冲处理可以保持简单。同时，短的衰减时间保证了在短的脉冲记录时间内仍然收集大部分光输出。
A feasible way to gain the depth of interaction information in a PET scanner is the use of phoswich detectors. In general the layer of interaction is identified front the pulse shape of the corresponding scintillator material. In this work pulses from LSO and LuYAP crystals were investigated in order to find a practical method of distinguishing. It turned out that such a pulse processing could he kept simple due to an additional slow component in the light decay of the LuYAP pulse. At the same time the short decay time guarantees that the major amount of the light output is still collected within a short pulse recording time.