Abstract: In this work, we evaluate the use of silicon photomultipliers (SiPMs) as a suitable candidate for use as a photodetector for thermoluminescence measurements. The measurements were based on the Hamamatsu S13360-series with a pixel area of 3 × 3 mm² and microcell pitches of 25 μm, 50 μm, and 75 μm, which were mounted on a Risø TL/OSL reader system with LiF:Mg,Cu,Si chosen as the reference TL material. Through the experiment, we showed that the typical TL glow curves can be obtained with SiPMs, despite their lower geometric efficiencies. We also demonstrated the dose response of SiPMs ranging from 6 to 66 mGy for three different photon threshold levels. The detection limit was approximately equal to 0.2 mSv, 0.08 mSv, and 0.17 mSv for 25 μm, 50 μm, and 75 μm SiPMs, respectively. More importantly, a sensitivity change and sensor temperature depending on a TL reading up to 260 °C was monitored on a sequential readout. Lastly, we discuss some of the possible benefits and limitations of SiPM-based TL measurements in comparison to PMT-based TL measurements.

摘要：在这项工作中，我们评估了硅光电倍增管（SiPM）用作热发光测量光电探测器的合适候选者。测量基于Hamamatsu S13360系列，像素面积为3×3 mm ²单元间距分别为25μm，50μm和75μm，并安装在RisøTL / OSL阅读器系统上，并选择LiF：Mg，Cu，Si作为参考TL材料。通过实验，我们表明，尽管SiPM具有较低的几何效率，但仍可以使用SiPM获得典型的TL辉光曲线。我们还证明了对于三种不同的光子阈值水平，SiPM的剂量反应范围为6至66 mGy。对于25μm，50μm和75μmSiPM，检测极限分别大约等于0.2 mSv，0.08 mSv和0.17 mSv。更重要的是，在连续读数中监控灵敏度变化和传感器温度（取决于最高260°C的TL读数）。最后，我们讨论了与基于PMT的TL测量相比，基于SiPM的TL测量的一些可能的优点和局限性。