AugerPrime Surface Detector Electronics

THE PIERRE AUGER COLLABORATION; N. GONZALEZ

JOURNAL OF INSTRUMENTATION

IOP PUBLISHING LTD

Lugar: Londres; Año: 2023

1748-0221

Operating since 2004, the Pierre Auger Observatory has led to major advances in ourunderstanding of the ultra-high-energy cosmic rays. The latest findings have revealed new insightsthat led to the upgrade of the Observatory, with the primary goal of obtaining information on theprimary mass of the most energetic cosmic rays on a shower-by-shower basis. In the frameworkof the upgrade, called AugerPrime, the 1660 water-Cherenkov detectors of the surface array areequipped with plastic scintillators and radio antennas, allowing us to enhance the compositionsensitivity. To accommodate new detectors and to increase experimental capabilities, the electronicsis also upgraded. This includes better timing with up-to-date GPS receivers, higher samplingfrequency, increased dynamic range, and more powerful local processing of the data. In this 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 be discussed. Thecalibration of the SD detector and various performance parameters obtained from the analysis of thefirst commissioning data will also be presented.