A test of silicon photomultipliers as readout for PET
A test of silicon photomultipliers as readout for PET
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DOI：
10.1016/j.nima.2005.02.014
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发表时间：
2005-06-21
影响因子：
1.4
通讯作者：
Teshima, M
中科院分区：
文献类型：
--
作者：
Otte, AN;Barral, J;Teshima, M
硅光电倍增管（SiPM）是一种基于盖革模式工作雪崩光电二极管的新型光子探测器。在本文中，我们给出了一个测试结果，证明了SiPM作为基于闪烁体的正电子发射断层扫描（PET）的读出元件的可行性。作为闪烁体，我们使用新开发的LYSO晶体，具有与LSO相似的特性。通过我们的设置，我们测量了大约22%的能量分辨率和单晶元素的时间分辨率（1.51 +/- 0.07）ns，两者都是全宽度半最大值。通过触发信号中的第一个光电子，可以显著提高时间分辨率。我们还给出了两个探测器通道与小点状Na-22正电子源位置的重合率。(c) 2005 Elsevier B.V.版权所有
The silicon photomultiplier (SiPM) is a novel photon detector based on Geiger mode operating avalanche photodiodes. In this paper, we present results from a test, demonstrating the feasibility of SiPM as readout elements in scintillator-based positron emission tomography (PET). As scintillator we use the newly developed LYSO crystals having similar characteristics as LSO. With our setup we measure an energy resolution of about 22% and a time resolution of a single crystal element of (1.51 +/- 0.07) ns, both full-width at half-maximum. A significant improvement in time resolution could be achieved by triggering on the first photoelectron in the signal. We also present the coincidence rate of two detector channels vs. the position of a small point-like Na-22 positron source. (c) 2005 Elsevier B.V. All rights reserved.