AugerPrime Upgraded Electronics

PIERRE AUGER COLLABORATION; A. MARIAZZI

Berlin

Conferencia; 37th International Cosmic Ray Conference (ICRC2021); 2021

Since 2015, the Pierre Auger Observatory has been undergoing an important upgrade. It consistsof the addition of Scintillator Surface Detectors (SSD) on top of the existing Water-CherenkovDetectors (WCDs), as well as a small Photo-Multiplier Tube (sPMT) inside the WCDs (bothexcluding the outer crown of the array), an Underground Muon Detectors (UMD) in the limitedhigher density area, denominated Infill, where the stations are installed at a distance of 750 minstead of the standard 1.5 km (SD750 and later also in the SD433), and a Radio Detector antennaarray (RD) at each of the 1660 surface detector stations. To process the signals of all these detectorsystems and to increase the dynamic range and time resolution, new electronics, Upgraded UnifiedBoards (UUBs) have been developed and are being produced and deployed at the Observatory.The combination of all of these new features of the Surface Detector (SD) will provide an enhancedcapability for answering the still many open questions related to the nature of ultra-high energycosmic rays.In this work the main characteristics, the production and validation chain, the performances andthe status of the implementation of the new Upgraded Unified Boards will be illustrated. The firstdata collected from the already operational upgraded stations in the array will also be presented.