PoS - Proceedings of Science
Volume 444 - 38th International Cosmic Ray Conference (ICRC2023) - Gamma-ray Astronomy (GA)
Timing performances of NectarCAM, a Medium Sized Telescope Camera for the Cherenkov Telescope Array
H. Rueda*, F. Bradascio, J.A. Barrio, J. Biteau, F. Brun, C. Champion, J.F. Glicenstein, D.H.H. Hoffmann, P. Jean, J.P. Lenain, F. Louis, A. Pérez, M. Punch, P. Sizun, K.H. Sulanke, L.A. Tejedor and B. Vallage
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Pre-published on: August 14, 2023
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NectarCAM is a Cherenkov camera that will be installed on Medium-Sized Telescopes of the
northern array of the Cherenkov Telescope Array Observatory (CTAO). It is composed of 265
modules, each of which includes 7 photo-multiplier tubes, a Front-End Board and a camera
trigger system for data collection. The first NectarCAM unit is currently being integrated at
CEA Paris-Saclay in France. Once installed at the CTAO’s northern site, the NectarCAM’s timing
abilities will be crucial for reducing noise in images, improving image cleaning, and distinguishing
between gamma-ray photons and cosmic-ray background. Additionally, it will enable coincidence
identification with neighboring telescopes for stereoscopic observations. The timing system of
NectarCAM has been tested in a dark room with various light sources. The results of the tests,
including timing precision and accuracy of the trigger arrival relative to a laser source, and the
timing of individual and multiple pixel signals, will be presented.
DOI: https://doi.org/10.22323/1.444.0853
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