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The NectarCAM Timing System
- Source :
- Nucl.Instrum.Meth.A, Nucl.Instrum.Meth.A, 2023, 1054, pp.168398. ⟨10.1016/j.nima.2023.168398⟩, Nuclear instruments & methods in physics research / A 1054, 168398 (2023). doi:10.1016/j.nima.2023.168398
- Publication Year :
- 2023
- Publisher :
- HAL CCSD, 2023.
-
Abstract
- Nuclear instruments & methods in physics research / A 1054, 168398 (2023). doi:10.1016/j.nima.2023.168398<br />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.<br />Published by North-Holland Publ. Co., Amsterdam
- Subjects :
- noise
Cherenkov Telescope Array
data acquisition
tube
Gamma ray
NectarCAM
FOS: Physical sciences
pixel
site
ddc:530
CTAO
Cherenkov
[PHYS.PHYS.PHYS-INS-DET]Physics [physics]/Physics [physics]/Instrumentation and Detectors [physics.ins-det]
Timing resolution
Instrumentation and Methods for Astrophysics (astro-ph.IM)
High Energy Astrophysical Phenomena (astro-ph.HE)
photomultiplier
background
photon
PMT transit time
trigger
showers
laser
observatory
gamma ray
cosmic radiation
Astrophysics - Instrumentation and Methods for Astrophysics
Astrophysics - High Energy Astrophysical Phenomena
[PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph]
performance
Subjects
Details
- Language :
- English
- Database :
- OpenAIRE
- Journal :
- Nucl.Instrum.Meth.A, Nucl.Instrum.Meth.A, 2023, 1054, pp.168398. ⟨10.1016/j.nima.2023.168398⟩, Nuclear instruments & methods in physics research / A 1054, 168398 (2023). doi:10.1016/j.nima.2023.168398
- Accession number :
- edsair.doi.dedup.....1bfe8299a35d4bff9c0eb7c422494864