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首页> 外文会议>2013 IEEE Nuclear Science Symposium and Medical Imaging Conference >Progresses in large dynamic range silicon photomultipliers with bulk quenching resistor
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Progresses in large dynamic range silicon photomultipliers with bulk quenching resistor

机译：带有体淬灭电阻的大动态范围硅光电倍增器的研究进展

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Silicon photomultiplier (SiPM) with bulk quenching resistor is one of the main SiPM technologies now under researches and developments. The device was first demonstrated at the Novel Device Laboratory (NDL). It has advantages of high micro cell density, short recovery time and has potential to alleviate the conflict between the high photon detection efficiency (PDE) and large dynamic range encountered by conventional SiPM, and it is beneficial to be applied in HEP calorimeters, PET, scintillator readout, radiation monitors and spectroscopy analysis, where high space resolution, large dynamic range and adequate high PDE are mandatory needed simultaneously. In the past years, with the optimization of the fabrication technology and structure of the device, the active area of the device has been increased from 1 mm × 1 mm to 2.2 mm × 2.2 mm, the peak PDE has been increased from 8% to 13%, while the density of the micro cells remains as large as 9000/mm2 and the recovery time remains to as low as ∼5ns. Application of the device to the detection of natural background radiation by using a lutetium orthosilicate (LSO) scintillator has been performed. Energy resolution of 1-to-1 coupling of this device and a 2 mm × 2 mm × 10 mm lutetium yttrium oxyorthosilicate (LYSO) crystal yielded an energy resolution of 11.8% by using radiation sources of 137Cs (662keV photons) without any high speed preamplifiers. These latest developments of SiPM with bulk quenching resistor will be presented in this record.
机译：具有体淬灭电阻器的硅光电倍增管（SiPM）是目前正在研究和开发中的主要SiPM技术之一。该设备首先在新型设备实验室（NDL）进行了演示。它具有高微孔密度，恢复时间短的优势，并有可能缓解传统SiPM遇到的高光子检测效率（PDE）与大动态范围之间的矛盾，并且有利于在HEP热量计，PET，同时需要高空间分辨率，大动态范围和足够高的PDE的闪烁体读数，辐射监测器和光谱分析。过去几年中，随着器件制造技术和结构的优化，器件的有效面积从1 mm×1 mm增加到2.2 mm×2.2 mm，峰值PDE从8％增加到13％，而微孔的密度保持高达9000 / mm 2 ，恢复时间保持低至约5ns。该设备已通过使用原硅酸（（LSO）闪烁体应用于检测自然本底辐射。通过使用 137 Cs辐射源，该器件与2 mm×2 mm×10 mm氧化原酸钇钇晶体的一对一耦合的能量分辨率产生11.8％的能量分辨率。 （662keV光子），无需任何高速前置放大器。该记录将介绍带有本体淬火电阻器的SiPM的最新发展。

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