Performance evaluation of three silicon photomultiplier detector modules within 
the MAGIC telescopes PMT-based camera

Hahn, A.; Mirzoyan, R.; Dettlaff, A.; Fink, D.J.; Mazin, D.; Teshima, M.

doi:10.1016/j.nima.2022.167686

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会議論文

Performance evaluation of three silicon photomultiplier detector modules within the MAGIC telescopes PMT-based camera

MPS-Authors

Hahn, A.
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Mirzoyan, R.
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Dettlaff, A.
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Fink, D.J.
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Mazin, D.
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Teshima, M.
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

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引用

Hahn, A., Mirzoyan, R., Dettlaff, A., Fink, D., Mazin, D., & Teshima, M. (2023). Performance evaluation of three silicon photomultiplier detector modules within the MAGIC telescopes PMT-based camera. Nuclear Instruments and Methods in Physics Research Section A, 1046, 167686.

引用: https://hdl.handle.net/21.11116/0000-000F-109E-D

要旨

MAGIC is a system of two imaging atmospheric Cherenkov telescopes (IACTs) located on the Canary island of La Palma. Each telescope’s imaging camera consists of 1039 photomultiplier tubes (PMTs). We developed three detector modules based on silicon photomultipliers (SiPMs) of seven pixels each that are mechanically and electronically compatible with those used in the MAGIC camera. These prototype modules are installed next to the PMTs in the imaging camera and are operated in parallel. To achieve a similar active area per pixel we used seven to nine SiPMs for producing a composite pixel. The SiPM signals within one such pixel are actively summed up for retaining the fast signal pulse shapes. Two different PCB designs are tested for thermal performance. We present our simulations of Cherenkov and light of the night sky (LoNS) responses. Based on those we calculate the signal-to-noise ratio (SNR) for this imaging application. We compare our expectations with the measurements of one of the SiPM-based detector modules.