A 37-hour balloon flight validated a SiPM Cherenkov telescope by finding 14 simulation-consistent air-shower flash events, with no UHECRs in the fluorescence channel.
The Camera and Readout for the Trinity Demonstrator and the EUSO-SPB2 Cherenkov Telescope
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abstract
We developed a modular silicon photomultiplier camera to detect Earth-skimming PeV to EeV tau neutrinos with the imaging atmospheric Cherenkov technique. We built two cameras, a 256-pixel camera with S14161-6050HS SiPMs for the Trinity Demonstrator located on Frisco Peak, Utah, and a 512-pixel camera with S14521-6050AN SiPMs for the EUSO-SPB2 Cherenkov Telescope. The front-end electronics are based on the eMUSIC ASIC, and the camera signals are sampled and digitized with the 100MS/s and 12-bit AGET system. Both cameras are liquid-cooled. We detail the camera concept and the results from characterizing the SiPMs, bench testing, and calibrating the two cameras.
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EUSO-SPB2 Cosmic Ray Searches and Observations
A 37-hour balloon flight validated a SiPM Cherenkov telescope by finding 14 simulation-consistent air-shower flash events, with no UHECRs in the fluorescence channel.