122个SensL MicroFJ-60035 SiPM的校准及耦合光导对光学串扰的抑制
Calibration of 122 SensL MicroFJ-60035 SiPMs and the reduction of optical crosstalk due to coupled light guides
AI总结：
本研究测量122个SensL MicroFJ-60035 SiPM的串扰与增益，发现耦合光导可显著降低串扰概率，为SiPM应用提供优化依据。
摘要：
近年来硅光电倍增管（SiPM）的优异生产质量使得无需对击穿电压进行单独校准即可运行。本文报道了对122个SensL MicroFJ-60035-TSV型SiPM的串扰概率和相对增益的测量。半导体光传感器已在众多应用中取代了光电倍增管，其优势包括单光子分辨能力、对磁场不敏感、更高的鲁棒性、在更低工作电压下更高的光子探测效率以及更低的成本。为增大SiPM相对较小的光敏面积，常使用光导。光导的光学耦合改变了传感器的表面条件，并影响串扰光子在不引发二次击穿的情况下离开传感器的概率。本研究在标称偏压下，将光学耦合光导的传感器与裸传感器进行了性能比较。结果表明，与光导的光学耦合显著降低了所测传感器的串扰概率。
英文摘要：
The excellent production quality of recent generations of Silicon Photomultipliers (SiPMs) allows for operation without individual calibration of the breakdown voltage. Measurements of the crosstalk probability and the relative gain of 122 SiPMs of type SensL MicroFJ-60035-TSV are presented. Semi-conductor photo sensors have replaced photo multiplier tubes in numerous applications featuring single-photon resolution, insensitivity to magnetic fields, higher robustness and enhanced photo detection efficiency at lower operation voltage and lower costs. Light guides are used to increase the comparably small photo sensitive area of SiPMs. Their optical coupling changes the surface conditions of the sensor and influences the probability for crosstalk photons to leave the sensor without inducing secondary breakdowns. This study compares properties of sensors that are optically coupled to light guides with bare sensors, operated at nominal bias voltage. It demonstrates, that the optical coupling to a light guide significantly reduces the crosstalk probability of the measured sensors.
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