In-situ gain calibration based on optimally compressed PMT hit information

Discussion timeslot (ZOOM-Meeting): 13. July 2021 - 12:00
ZOOM-Meeting URL: https://desy.zoom.us/j/91999581729
ZOOM-Meeting ID: 91999581729
ZOOM-Meeting Passcode: ICRC2021
Corresponding Session: https://icrc2021-venue.desy.de/channel/32-Cherenkov-Media-amp-Detector-Calibration-NU/65
Live-Stream URL: https://icrc2021-venue.desy.de/livestream/Discussion-05/6

Abstract:
'Bouke Jung$^1$, Maarten de Jong$^2$, Paolo Fermani$^3$ rnon behalf of the KM3NeT collaborationrnrn$^1$) University of Amsterdam, Nikhefrnbjung@nikhef.nlrn$^2$) Leiden University, Nikhefrnmjg@nikhef.nlrn$^3$) Sapienza Università di Roma rnpaolo.fermani@roma1.infn.itrnrnPresent and foreseen neutrino observatories, such as IceCube, P-ONE, GVD, Antares and KM3NeT have to operate in challenging environments, where high count rates go hand in hand with limited bandwidths.rnTo keep the data rates in these experiments within the allowed range, rigorous data reduction is essential. rnAt the same time, sufficient information needs to be recorded to accurately measure the neutrino properties. rnThe KM3NeT collaboration has developed a novel data acquisition procedure, in which each PMT signal is reduced to a datapacket of 6 Bytes, containing the PMT identifier (1 B), the hit time (4 B) and the duration over which the associated PMT pulse exceeded the threshold (1B). rnThis talk highlights an analytical pulse-shape model which is used to perform in-situ calibrations of the gain and its spread, using only the time-over-threshold statistics associated with single photon hits.'

Authors: Bouke Jung
Co-Authors: Maarten de Jong | Paolo Fermani
Collaboration: KM3NeT

Indico-ID: 1023
Proceeding URL: https://pos.sissa.it/395/1081