A method to achieve spatial linearity and uniform resolution at the edges of monolithic scintillation crystal detectors
A method to achieve spatial linearity and uniform resolution at the edges of monolithic scintillation crystal detectors
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DOI：
10.1088/0031-9155/59/12/2975
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发表时间：
2014-06-21
影响因子：
3.5
通讯作者：
Levin, Craig S.
中科院分区：
文献类型：
--
作者：
Vinke, Ruud;Levin, Craig S.
我们已经进行了Monte Carlo模拟的闪烁光传输相邻的单片LYSO晶体之间的光学耦合在一起，使用不同的折射率的耦合介质。晶体的闪烁光由SiPM阵列从大晶面读出。闪烁事件定位结果表明，这种光耦合技术保持了两个晶体之间的界面附近和整个界面上的光扩散函数的形状，以便大大减少单片闪烁晶体中观察到的边缘伪影，同时不降低定时性能。
We have performed Monte Carlo simulations of the scintillation light transport between adjacent monolithic LYSO crystals that are optically coupled together using coupling media of varying refractive index. The scintillation light from the crystalswas read out by SiPM arrays from the large crystal face. Scintillation event positioning results show that this optical coupling technique preserves the shape of the light spread function near and across the interface between the two crystals in order to substantially reduce the edge-artifacts observed in monolithic scintillation crystals, while not degrading the timing performance.