Spatial resolution and depth-of-interaction studies with a PET detector module composed of LSO and an APD array
Spatial resolution and depth-of-interaction studies with a PET detector module composed of LSO and an APD array
复制标题
使用由 LSO 和 APD 阵列组成的 PET 探测器模块进行空间分辨率和交互深度研究
DOI：
10.1109/tns.2002.998739
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发表时间：
2002
影响因子：
1.8
通讯作者：
S. Tavernier
中科院分区：
文献类型：
--
作者：
A. Fremout;Ruru Chen;P. Bruyndonckx;S. Tavernier
给出了用滨松2/SPL次/8雪崩光电二极管阵列读出的不同晶型的氧硅酸(LSO)闪烁晶体所获得的空间分辨率的详细结果。块探测器和小尺寸的LSO晶体已经耦合到雪崩探测器矩阵上。研究了一对一耦合和光共享两种方案。每种构型的空间分辨率都是推导出来的。两种不同构型的LSO晶体被用来研究相互作用的深度信息，其中两层LSO晶体相对于彼此的晶体尺寸移动了一半。在空间分辨率测量之前，对不同晶体表面处理和不同光学耦合材料的光输出进行了比较。
Detailed results are given for the study of the spatial resolution obtained with different configurations of lutetium oxyorthosilicate (LSO) scintillation crystals read out by a Hamamatsu 2 /spl times/ 8 avalanche photodiode (APD) array. Block detectors as well as small-sized individual LSO crystals have been coupled to the APD matrix. Both one-to-one coupling and light-sharing schemes were investigated. The spatial resolution is derived for each configuration. Two different configurations with two layers of LSO crystals shifted by half a crystal size with respect to each other are used for investigations on the depth-of-interaction information. Prior to the spatial resolution measurements, a comparison of the light output for various crystal surface treatments and different optical coupling materials has been made.