Silicon photomultiplers in Very High Energy gamma-ray astrophysics

Abstract

In the last ten years silicon photomultipliers (SiPMs) have gained terrain in experiments and applications in which photomultiplier tubes have been the dominant photosensors during decades. Imaging Atmospheric Cherenkov Telescopes (IACTs) for very high energy (VHE, E$>$50 GeV) gamma-ray astronomy are experiencing the same process. Until now FACT was the only IACT using SiPMs. In the Cherenkov Telescope Array (CTA), the next-generation VHE gamma-ray observatory, at least 70 telescopes equipped with SiPMs are planned to be built. The first prototypes have already been constructed and are now being commissioned. Here we discuss some of the advantages and drawbacks of using SiPMs in VHE gamma-ray astronomy and provide a brief overview of different developments related to the use of SiPMs in IACTs.

arXiv commentAccepted for publication in JINST. 9 pages, 7 figures. Proceedings of the 5th INFIERI

References in corpus (17)

• Observations of the Crab Nebula with H.E.S.S
• The major upgrade of the MAGIC telescopes, Part I: The hardware improvements and the commissioning of the system
• Sensitivity of the High Altitude Water Cherenkov Detector to Sources of Multi-TeV Gamma Rays
• Characterization of Three High Efficiency and Blue Sensitive Silicon Photomultipliers
• LA Palma Night-Sky Brightness
• Ground-based detectors in very-high-energy gamma-ray astronomy
• Performance of the MAGIC telescopes under moonlight
• Calibration and performance of the photon sensor response of FACT -- The First G-APD Cherenkov telescope
• Status of the VERITAS Observatory
• An innovative silicon photomultiplier digitizing camera for gamma-ray astronomy
• First detection of the Crab Nebula at TeV energies with a Cherenkov telescope in a dual-mirror Schwarzschild-Couder configuration: the ASTRI-Horn telescope
• Optical intensity interferometry observations using the MAGIC imaging atmospheric Cherenkov telescopes
• Characterisation of a large area silicon photomultiplier
• MACHETE: A transit Imaging Atmospheric Cherenkov Telescope to survey half of the Very High Energy $\gamma$-ray sky
• UVSiPM: a light detector instrument based on a SiPM sensor working in single photon counting
• The Light-Trap: A novel concept for a large SiPM-based pixel for Very High Energy gamma-ray astronomy and beyond
• Design of a SiPM-based cluster for the Large Size Telescope camera of CTA