Photodiode Read-Out System for the Calorimeter of the Herd Experiment Article Swipe

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Photodiode Calorimeter (particle physics) Avalanche photodiode Spectrometer Computer science Optics Detector Optoelectronics Physics

P. Betti , O. Adriani , M. Antonelli , Yonglin Bai , Xiaohong Bai , Tianwei Bao , E. Berti , L. Bonechi , M. Bongi , V. Bonvicini , Sergio Bottai , Weiwei Cao , J. Casaus , Zhe Chen , Xingzhu Cui , R. D’Alessandro , S. Detti , Yongwei Dong , N. Finetti , V. Formato , M. Velasco , Jiarui Gao , Xiaozhen Liang , Ran Li , Xin Liu , Linwei Lyu , Gustavo Martínez , N. Mōri , Jesus Marin Munoz , L. Pacini , P. Papini , C. Pizzolotto , Zheng Quan , Junjun Qin , Dalian Shi , O. Starodubtsev , Zhicheng Tang , A. Tiberio , V. Vagelli , E. Vannuccini , Bo Wang , Junjing Wang , Le Wang , Ruijie Wang , G. Zampa , N. Zampa , Zhigang Wang , M. Xu , Li Zhang , Jinkun Zheng ·

YOU? · · 2022 · Open Access · · DOI: https://doi.org/10.3390/instruments6030033 · OA: W4294733065

HERD is a future experiment for the direct detection of high energy cosmic rays. The instrument is based on a calorimeter optimized not only for a good energy resolution but also for a large acceptance. Each crystal composing the calorimeter is equipped with two read-out systems: one based on wavelength-shifting fibers and the other based on two photodiodes with different active areas assembled in a monolithic package. In this paper, we describe the photodiode read-out system, focusing on experimental requirements, design and estimated performances. Finally, we show how these features lead to the flight model project of the photodiode read-out system.