Novel Silicon Photomultipliers for PET applications
Novel Silicon Photomultipliers for PET applications
复制标题
DOI：
10.1109/tns.2008.922812
复制
发表时间：
2008-06-01
影响因子：
1.8
通讯作者：
Pozza, Alberto
中科院分区：
文献类型：
--
作者：
Llosa, Gabriela;Battiston, Roberto;Pozza, Alberto
在意大利的ITC-irst Trento公司开发了量子效率在420到470 nm之间最大化的硅光电倍增管(SiPM)，并正在测试它们在构建超高分辨率小动物PET断层扫描仪中的应用。该器件具有1 mm×1 mm的面积和625个微电池。击穿电压约为30V，增益为10(6)数量级。在单光电子水平下，本征时间分辨率为70ps rms。作为闪烁体读数的第一次测试显示，使用LSO晶体的Na-22的能量分辨率为21%半高宽。已经生产了第一批SiPM矩阵，并正在进行测试。
Silicon Photomultipliers (SiPMs) with quantum efficiency maximized for a wavelength between 420 and 470 nm have been developed at ITC-irst Trento (Italy), and are being tested for their application in the construction of a ultra high resolution small animal PET tomograph. The devices have an area of I mm x I mm and 625 microcells. The breakdown voltage is around 30 V, and the gain of the order of 10(6). The intrinsic timing resolution is 70 ps rms at the single photoelectron level. The first tests as readout for scintillators show an energy resolution of 21% FWHM with Na-22 employing LSO crystals. The first matrices of SiPMs have been produced and are being tested.