The JUNO experiment Top Tracker

Donchenko, G.; Kouzakov, K.; Lokhov, A.; Lubsandorzhiev, B.; Naumov, D.V.; Popov, A.; Stankevich, K.; Studenikin, A.; Vialkov, M.; JUNO, C.

Авторы: Donchenko Georgy, Kouzakov Konstantin, Lokhov Alexey, Lubsandorzhiev Bayarto, Naumov Dmitry V., Popov Artyom, Stankevich Konstantin, Studenikin Alexander, Vialkov Maxim, JUNO Collaboration
Журнал: Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
Год издания: 2023
Издательство: Elsevier BV
Местоположение издательства: Netherlands
Номер статьи: 168680
DOI: 10.1016/j.nima.2023.168680
Аннотация: The main task of the Top Tracker detector of the neutrino reactor experiment Jiangmen Underground Neutrino Observatory (JUNO) is to reconstruct and extrapolate atmospheric muon tracks down to the central detector. This muon tracker will help to evaluate the contribution of the cosmogenic background to the signal. The Top Tracker is located above JUNO’s water Cherenkov Detector and Central Detector, covering about 60% of the surface above them. The JUNO Top Tracker is constituted by the decommissioned OPERA experiment Target Tracker modules. The technology used consists in walls of two planes of plastic scintillator strips, one per transverse direction. Wavelength shifting fibres collect the light signal emitted by the scintillator strips and guide it to both ends where it is read by multianode photomultiplier tubes. Compared to the OPERA Target Tracker, the JUNO Top Tracker uses new electronics able to cope with the high rate produced by the high rock radioactivity compared to the one in Gran Sasso underground laboratory. This paper will present the new electronics and mechanical structure developed for the Top Tracker of JUNO along with its expected performance based on the current detector simulation.
Добавил в систему: Кузаков Константин Алексеевич

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