Light Sensor Candidates for the Cherenkov Telescope Array
M. L. Knoetig, R. Mirzoyan, M. Kurz, J. Hose, E. Lorenz, T. Schweizer,, M. Teshima, P. Buzhan, E. Popova, J. Bolmont, J.-P. Tavernet, P. Vincent, M., Shayduk
TL;DR
This paper characterizes candidate light sensors, including Photomultiplier tubes and Silicon Photomultipliers, for the Cherenkov Telescope Array to optimize photon detection efficiency and reduce noise.
Contribution
It provides a comprehensive characterization of sensor candidates and collaborates with manufacturers to improve sensor performance for the Cherenkov Telescope Array.
Findings
Full sensor characterization completed
Feedback provided to manufacturers for improvements
Comparison of PMTs and SiPMs for CTA cameras
Abstract
We report on the characterization of candidate light sensors for use in the next-generation Imaging Atmospheric Cherenkov Telescope project called Cherenkov Telescope Array, a major astro-particle physics project of about 100 telescopes that is currently in the prototyping phase. Our goal is to develop with the manufacturers the best possible light sensors (highest photon detection efficiency, lowest crosstalk and afterpulsing). The cameras of those telescopes will be based on classical super-bi-alkali Photomultiplier tubes but also Silicon Photomultipliers are candidate light sensors. A full characterisation of selected sensors was done. We are working in close contact with several manufacturers, giving them feedback and suggesting improvements.
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