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About

Samuel Tobler is a key figure in the development of next-generation, robotic ground-based gamma-ray astronomy. His research centers on the deployment and operation of Imaging Air Cherenkov Telescopes (IACTs), with a specific focus on pioneering the use of silicon photomultipliers (SiPMs or G-APDs) to replace traditional photomultiplier tubes. Tobler’s major contribution is his work on the FACT (First G-APD Cherenkov Telescope) project, which demonstrated the first successful use of SiPMs in Cherenkov astronomy. This breakthrough proved that solid-state detectors could achieve the high sensitivity required for gamma-ray observations, paving the way for more robust and efficient telescopes. Furthermore, Tobler’s research was instrumental in transitioning FACT to fully robotic operation, making it the first IACT routinely operated remotely without an on-site crew. This achievement, documented in his highly cited work, has set a new standard for observatory efficiency and reliability. With over 12 citations on his foundational papers, Tobler’s contributions are essential for understanding the technological evolution toward the next generation of Cherenkov telescopes, such as the Cherenkov Telescope Array (CTA).