Muon counting using silicon photomultipliers in the AMIGA detector of the Pierre Auger observatory
Here, 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.
- Research Organization:
- Fermi National Accelerator Laboratory (FNAL), Batavia, IL (United States)
- Sponsoring Organization:
- USDOE Office of Science (SC), High Energy Physics (HEP)
- Contributing Organization:
- Pierre Auger
- Grant/Contract Number:
- AC02-07CH11359
- OSTI ID:
- 1350508
- Report Number(s):
- FERMILAB-PUB-16-656-AD-CD-TD; arXiv:1703.06193; 1516105; TRN: US1700651
- Journal Information:
- Journal of Instrumentation, Vol. 12, Issue 03; ISSN 1748-0221
- Publisher:
- Institute of Physics (IOP)Copyright Statement
- Country of Publication:
- United States
- Language:
- English
Web of Science
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text | January 2015 |
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text | January 2019 |
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journal | April 2019 |
Data-driven estimation of the invisible energy of cosmic ray showers with the Pierre Auger Observatory | text | January 2019 |
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