AugerPrime surface detector electronics

I.D. VERGARA QUISPE; PIERRE AUGER COLLABORATION

JOURNAL OF INSTRUMENTATION

IOP PUBLISHING LTD

Año: 2023 vol. 18

1748-0221

Operating since 2004, the Pierre Auger Observatory has led to major advances in our understanding of the ultra-high-energy cosmic rays. The latest findings have revealed new insights that led to the upgrade of the Observatory, with the primary goal of obtaining information on the primary mass of the most energetic cosmic rays on a shower-by-shower basis. In the framework of the upgrade, called AugerPrime, the 1660 water-Cherenkov detectors of the surface array are equipped with plastic scintillators and radioantennas, allowing us to enhance the composition sensitivity. To accommodate new detectors and to increase experimental capabilities, the electronics is also upgraded. This includes better timing withup-to-date GPS receivers, higher sampling frequency, increased dynamic range, and more powerful local processing of the data. Int his paper, the design characteristics of the new electronics and the enhanced dynamic range will be described. The manufacturing and test processes will be outlined and the test results will bediscussed. The calibration of the SD detector and various performance parameters obtained from the analysis of the first commissioning data will also be presented.