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Muon counting using silicon photomultipliers in the AMIGA detector of the Pierre Auger observatory

  • The Pierre Auger Collaboration
  • Universität Siegen
  • Instituto Superior Tecnico
  • Sezione di Torino
  • INAF-IAPS
  • Fermilab
  • Laboratoire de Physique Nucléaire et de Hautes Energies
  • University of São Paulo
  • CNEA-UNCuyo-CONICET
  • Ohio State University
  • CONICET
  • Universidad Tecnológica Nacional
  • Universidad Nacional Autonoma de Mexico
  • Universidad de Santiago de Compostela
  • Sezione di Napoli
  • INFN
  • Lehman College
  • Universidad Complutense de Madrid
  • University of Bucharest
  • Universidad Industrial de Santander
  • Observatorio Pierre Auger and Comisión Nacional de Energía Atómica
  • UNSAM
  • University Politehnica of Bucharest
  • 'Horia Hulubei' National Institute for Physics and Nuclear Engineering
  • Karlsruhe Institute of Technology (KIT)
  • Bergische Universität Wuppertal
  • University of Adelaide
  • UJF-Grenoble 1/CNRS-INSU
  • Università di Torino and Sezione INFN
  • Max-Planck-Institut für Radioastronomie
  • Université Paris 11
  • Academy of Sciences of the Czech Republic
  • Sezione di Lecce
  • Universita del Salento
  • Deutsches Elektronen-Synchrotron (DESY)
  • Universidade Federal do Rio de Janeiro
  • Institute of Nuclear Physics PAN
  • Colorado State University
  • RWTH Aachen University

Research output: Contribution to journalReview articlepeer-review

15 Scopus citations

Abstract

AMIGA (Auger Muons and Infill for the Ground Array) is an upgrade of the Pierre Auger Observatory designed to extend its energy range of detection and to directly measure the muon content of the cosmic ray primary particle showers. The array will be formed by an infill of surface water-Cherenkov detectors associated with buried scintillation counters employed for muon counting. Each counter is composed of three scintillation modules, with a 10 m2 detection area per module. In this paper, a new generation of detectors, replacing the current multi-pixel photomultiplier tube (PMT) with silicon photo sensors (aka. SiPMs), is proposed. The selection of the new device and its front-end electronics is explained. A method to calibrate the counting system that ensures the performance of the detector is detailed. This method has the advantage of being able to be carried out in a remote place such as the one where the detectors are deployed. High efficiency results, i.e. 98 % efficiency for the highest tested overvoltage, combined with a low probability of accidental counting (∼2 %), show a promising performance for this new system.

Original languageBritish English
Article numberP03002
JournalJournal of Instrumentation
Volume12
Issue number3
DOIs
StatePublished - 3 Mar 2017

Keywords

  • Front-end electronics for detector readout
  • Pattern recognition, cluster finding, calibration and fitting methods
  • Performance of high energy physics detectors
  • Photon detectors for UV, visible and IR photons (solid-state) (PIN diodes, APDs, Si-PMTs, G-APDs, CCDs, EBCCDs, EMCCDs etc)

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