标题： 通过暗电流测量的像素化盖革模式雪崩光电二极管特性分析 显示英文标题

标题： Pixelated Geiger-Mode Avalanche Photo-Diode Characterization through Dark Current Measurement

摘要： 基于盖革模式雪崩光电二极管（PPD），通常称为硅光电倍增管（SiPM）的像素化探测器，正成为传统光电倍增管（PMT）在各类探测器中的优秀替代品，特别是在需要子原子物理实验的探测器中，这些实验需要广泛的测试和操作程序以确保所有设备具有均匀响应。 本文展示了对于两个PPD品牌，滨松MPPC和SensL SPM，暗噪声率、击穿电压以及相关雪崩率可以从暗电流随工作电压变化的单一测量中推断出来，从而大大简化了表征过程。 我们引入了一种自定义电子系统，该系统允许同时测量多个设备，从而以低成本快速测试和监控大量设备。 最后，我们表明在恒定工作电压下，滨松多像素光子计数器（MPPC）的暗电流对温度变化相当不敏感，因此无法用于探测温度变化。另一方面，在直流模式下，只要集成光源亮度与暗噪声率相当，MPPC电流可以用来监测光源条件，而不需要很强的温度稳定性。 显示英文摘要

摘要： PIXELATED geiger-mode avalanche photodiodes(PPDs), often called silicon photomultipliers (SiPMs) are emerging as an excellent replacement for traditional photomultiplier tubes (PMTs) in a variety of detectors, especially those for subatomic physics experiments, which requires extensive test and operation procedures in order to achieve uniform responses from all the devices. In this paper, we show for two PPD brands, Hamamatsu MPPC and SensL SPM, that the dark noise rate, breakdown voltage and rate of correlated avalanches can be inferred from the sole measure of dark current as a function of operating voltage, hence greatly simplifying the characterization procedure. We introduce a custom electronics system that allows measurement for many devices concurrently, hence allowing rapid testing and monitoring of many devices at low cost. Finally, we show that the dark current of Hamamastu Multi-Pixel Photon Counter (MPPC) is rather independent of temperature at constant operating voltage, hence the current measure cannot be used to probe temperature variations. On the other hand, the MPPC current can be used to monitor light source conditions in DC mode without requiring strong temperature stability, as long as the integrated source brightness is comparable to the dark noise rate.