Microlens-Enhanced SiPMs

IF 1.9 3区工程技术 Q3 ENGINEERING, ELECTRICAL & ELECTRONIC

IEEE Transactions on Nuclear Science Pub Date : 2025-02-14 DOI:10.1109/TNS.2025.3542597

G. Haefeli;F. Blanc;E. Currás-Rivera;R. Marchevski;F. Ronchetti;O. Schneider;L. Shchutska;C. Trippl;E. Zaffaroni;G. Zunica

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引用次数: 0

摘要

本文提出了一种提高硅光电倍增管光电探测效率的新方法，并取得了显著的成果。这个概念使用微透镜阵列以棋盘状排列覆盖每一秒SiPM像素，旨在将光从像素化结构的死区偏转到像素中心的活动区域。与平面环氧树脂层相比，PDE提高了24%，外部串扰减少了40%，单光子时间分辨率（SPTR）得到了提高。该探测器的开发是在下一代大型强子对撞机美丽（LHCb）闪烁光纤跟踪器（SciFi tracker）的背景下进行的，该跟踪器位于高辐射环境中，总共有70万个探测器通道。仿真结果与实测结果吻合较好，本文将对此进行讨论。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Microlens-Enhanced SiPMs

A novel concept to enhance the photodetection efficiency (PDE) of silicon photomultipliers (SiPMs) has been applied, and remarkable positive results can be reported. This concept uses arrays of microlenses to cover every second SiPM pixel in a chequerboard arrangement and aims to deflect the light from the dead region of the pixelized structure toward the active region in the center of the pixel. The PDE is improved up to 24%, external crosstalk is reduced by 40% compared to a flat epoxy layer, and single photon time resolution (SPTR) is improved. This detector development is conducted in the context of the next-generation Large Hadron Collider beauty (LHCb) scintillating fiber tracker (SciFi Tracker) located in a high radiation environment with a total of 700’000 detector channels. The simulation and measurement results are in good agreement and will be discussed in this work.

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来源期刊

IEEE Transactions on Nuclear Science 工程技术-工程：电子与电气

CiteScore

3.70

自引率

27.80%

发文量

314

审稿时长

6.2 months

期刊介绍： The IEEE Transactions on Nuclear Science is a publication of the IEEE Nuclear and Plasma Sciences Society. It is viewed as the primary source of technical information in many of the areas it covers. As judged by JCR impact factor, TNS consistently ranks in the top five journals in the category of Nuclear Science & Technology. It has one of the higher immediacy indices, indicating that the information it publishes is viewed as timely, and has a relatively long citation half-life, indicating that the published information also is viewed as valuable for a number of years. The IEEE Transactions on Nuclear Science is published bimonthly. Its scope includes all aspects of the theory and application of nuclear science and engineering. It focuses on instrumentation for the detection and measurement of ionizing radiation; particle accelerators and their controls; nuclear medicine and its application; effects of radiation on materials, components, and systems; reactor instrumentation and controls; and measurement of radiation in space.