Characterisation of silicon photomultipliers for time-of-flight PET
Characterisation of silicon photomultipliers for time-of-flight PET
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DOI：
10.1016/j.nima.2011.12.035
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发表时间：
2012-12-11
影响因子：
1.4
通讯作者：
Matheson, J.
中科院分区：
文献类型：
--
作者：
Ahmed, M.;Camanzi, B.;Matheson, J.
硅光电倍增管（SiPM）是一种工作在盖革模式的固态光子探测器。由于其操作的雪崩性质，它具有快速响应时间，在飞行时间（TOF）应用中可能有用。本工作旨在将TOF应用于正电子发射断层扫描（PET）。我们已经从两个制造商的击穿电压，暗计数率和响应脉冲光源的信号的上升时间方面的SiPM的特点。SiPM的定时性能进行了研究与Na-22源，使用双通道系统，其中的SiPM耦合到闪烁体晶体。测量的最佳定时分辨率由Hamamatsu 3 x 3 mm（2）面积50 gm像素大小的SiPM给出。这些设备给出了176 ps（西格玛）和227 ps（西格玛）的定时分辨率，当耦合到30毫米长的LaBr 3（Ce）和5毫米长的LYSO晶体，分别。(c)2011 Elsevier B. V.保留所有权利。
The recently developed Silicon Photo Multiplier (SiPM) is a solid state photon detector operating in the Geiger mode. Due to the avalanche nature of its operation, it has a fast response time, potentially useful in Time-Of-Flight (TOF) applications. This work is aimed at the application of TOF to Positron Emission Tomography (PET). We have characterised SiPMs from two manufacturers in terms of breakdown voltages, dark count rates and the rise times of the signal in response to pulsed light sources. SiPM timing performances were studied with a Na-22 source, using two-channel systems in which the SiPMs were coupled to scintillator crystals. The best timing resolutions measured were given by Hamamatsu 3 x 3 mm(2) area 50 gm pixel size SiPMs. These devices gave timing resolutions of 176 ps (sigma) and 227 ps (sigma), when coupled to 30 mm-long LaBr3(Ce) and 5 mm-long LYSO crystals, respectively. (c) 2011 Elsevier B.V. All rights reserved.