Detecting of ultra-high-energy cosmic rays with prototypes of the Fluorescence detector Array of Single-pixel Telescopes (FAST) in both hemispheres

, are the most energetic particles we have ever detected.The latest results seem to indicate a heavier composition at the highest energies, complicating the search for their origins.Due to the limited number of UHECR events, we need to build an instrument with an order of magnitude larger effective-exposure to collect UHECRs in future decades.The Fluorescence detector Array of Single-pixel Telescopes (FAST) is a proposed low-cost, easily deployable UHECR detector suitable for a future ground array.It is essential to validate the telescope design and autonomous observational techniques using prototypes located in both hemispheres.Here we report on the current status of observations, recent performance results of prototypes, and developments towards a future mini-array.

Note:

8 pages, 8 figures, Proceedings of the 38th International Cosmic Ray Conference (ICRC2023)

activity report
cosmic radiation: UHE
detector: fluorescence
performance
semiconductor detector: pixel
semiconductor detector: design

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