Instruments (Sep 2022)

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

  • Pietro Betti,
  • Oscar Adriani,
  • Matias Antonelli,
  • Yonglin Bai,
  • Xiaohong Bai,
  • Tianwei Bao,
  • Eugenio Berti,
  • Lorenzo Bonechi,
  • Massimo Bongi,
  • Valter Bonvicini,
  • Sergio Bottai,
  • Weiwei Cao,
  • Jorge Casaus,
  • Zhen Chen,
  • Xingzhu Cui,
  • Raffaello D’Alessandro,
  • Sebastiano Detti,
  • Yongwei Dong,
  • Noemi Finetti,
  • Valerio Formato,
  • Miguel Angel Velasco Frutos,
  • Jiarui Gao,
  • Xiaozhen Liang,
  • Ran Li,
  • Xin Liu,
  • Linwei Lyu,
  • Gustavo Martinez,
  • Nicola Mori,
  • Jesus Marin Munoz,
  • Lorenzo Pacini,
  • Paolo Papini,
  • Cecilia Pizzolotto,
  • Zheng Quan,
  • JunJun Qin,
  • Dalian Shi,
  • Oleksandr Starodubtsev,
  • Zhicheng Tang,
  • Alessio Tiberio,
  • Valerio Vagelli,
  • Elena Vannuccini,
  • Bo Wang,
  • Junjing Wang,
  • Le Wang,
  • Ruijie Wang,
  • Gianluigi Zampa,
  • Nicola Zampa,
  • Zhigang Wang,
  • Ming Xu,
  • Li Zhang,
  • Jinkun Zheng

DOI
https://doi.org/10.3390/instruments6030033
Journal volume & issue
Vol. 6, no. 3
p. 33

Abstract

Read online

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.

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