Speaker
Prof.
Laura Valore
(INFN Sezione di Napoli and University of Napoli Federico II)
Description
The attenuation of the fluorescence light in atmosphere due to the presence of aerosols is continuously monitored at the Pierre Auger Observatory with the two distant laser facilites, the Central Laser Facility (CLF) and the eXtreme Laser Facility (XLF). The long-time aerosol attenuation conditions measured in 19 years of operation, and used in the reconstruction of cosmic-ray events registered by the Fluorescence Detector, are presented. To ensure the capability to operate the laser facilities in the next years, they have undergone a major upgrade in 2025. The realization of the new CLF and XLF, the custom GPS board designed for the timing of the system, and the results of the first months of operation are described.
Author
Prof.
Laura Valore
(INFN Sezione di Napoli and University of Napoli Federico II)