TY  - JOUR
AU  - Bradascio, F.
AU  - Rueda, H.
AU  - Barrio, J. A.
AU  - Biteau, J.
AU  - Brun, F.
AU  - Champion, C.
AU  - Glicenstein, J.-F.
AU  - Hoffmann, D.
AU  - Jean, P.
AU  - Lenain, J. P.
AU  - Louis, F.
AU  - Perez, A.
AU  - Punch, M.
AU  - Sizun, P.
AU  - Sulanke, K.-H.
AU  - Tejedor, L. A.
AU  - Vallage, B.
TI  - The NectarCAM timing system
JO  - Nuclear instruments & methods in physics research / A
VL  - 1054
IS  - arXiv:2301.13828
SN  - 0167-5087
CY  - Amsterdam
PB  - North-Holland Publ. Co.
M1  - PUBDB-2023-04000
M1  - arXiv:2301.13828
SP  - 168398 
PY  - 2023
N1  - 8 pages, 13 figures
AB  - NectarCAM is a Cherenkov camera which is going to equip the Medium-Sized Telescopes (MST) of the northern site of the Cherenkov Telescope Array Observatory (CTAO). NectarCAM is equipped with 265 modules, each consisting of 7 photo-multiplier tubes (PMTs), a Front-End Board and a local camera trigger system used for data acquisition. This paper addresses the timing performance of NectarCAM which are crucial to reduce the noise in shower images and improve image cleaning as well as to discriminate between gamma-ray photons and cosmic-ray background and finally to allow coincidence identification with neighboring telescopes for stereoscopic operations. Verification tests of the system have been performed in a dark room using various light sources to illuminate the first NectarCAM unit. The resulting timing precision and accuracy of the trigger arrival relative to a laser source, of individual and multiple pixel signals have been studied and are shown to comply to CTAO requirements.
KW  - trigger (INSPIRE)
KW  - observatory (INSPIRE)
KW  - laser (INSPIRE)
KW  - background (INSPIRE)
KW  - photomultiplier (INSPIRE)
KW  - showers (INSPIRE)
KW  - tube (INSPIRE)
KW  - photon (INSPIRE)
KW  - data acquisition (INSPIRE)
KW  - site (INSPIRE)
KW  - Cherenkov Telescope Array (INSPIRE)
KW  - noise (INSPIRE)
KW  - gamma ray (INSPIRE)
KW  - performance (INSPIRE)
KW  - Cherenkov (INSPIRE)
KW  - cosmic radiation (INSPIRE)
KW  - pixel (INSPIRE)
KW  - NectarCAM (autogen)
KW  - Gamma ray (autogen)
KW  - Cherenkov (autogen)
KW  - CTAO (autogen)
KW  - Timing resolution (autogen)
KW  - PMT transit time (autogen)
KW  - Trigger (autogen)
LB  - PUB:(DE-HGF)16
UR  - <Go to ISI:>//WOS:001040635400001
DO  - DOI:10.1016/j.nima.2023.168398
UR  - https://bib-pubdb1.desy.de/record/586762
ER  -