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Time calibration and synchronization of the scintillation light detection system in ICARUS-T600

Journal Article · · Journal of Instrumentation
 [1];  [2];  [3];  [3];  [1];  [4];  [5];  [6];  [1];  [1];  [7];  [4]
  1. National Institute for Nuclear Physics (INFN), Pavia (Italy)
  2. University of Florida, Gainesville, FL (United States)
  3. National Institute for Nuclear Physics (INFN), Milan (Italy); University of Milano-Bicocca, Milan (Italy)
  4. Brookhaven National Laboratory (BNL), Upton, NY (United States)
  5. National Institute for Nuclear Physics (INFN), Pavia (Italy); University of Pavia (Italy)
  6. Stanford University, CA (United States)
  7. Fermi National Accelerator Laboratory (FNAL), Batavia, IL (United States)
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The ICARUS-T600 Liquid Argon (LAr) Time Projection Chamber (TPC) is presently taking data in the Short Baseline Neutrino (SBN) program at Fermilab (U.S.A.) to search for a possible LSND-like sterile neutrino signal at Δm2 ≈ 1 eV2 with the Booster Neutrino Beam (BNB). A light detection system, based on 360 large area Photo-Multiplier Tubes (PMTs), has been realized for ICARUS-T600 to detect VUV photons produced by the passage of ionizing particles in LAr. This system is fundamental for the TPC operation, providing an efficient trigger and contributing to the 3D reconstruction of events. Moreover, since the detector is exposed to a huge flux of cosmic rays due to its shallow depths installation, the light detection system allows for the time reconstruction of events, contributing to the identification and to the selection of genuine neutrino interactions. The correct time reconstruction of events requires the precise knowledge of the delay of each PMT channel and a good synchronization of recording electronics, this last based on fast sampling digitizers. To achieve a time resolution better than 1 ns, we perform three consecutive timing corrections deployed at different stages of the optical data flow. Results demonstrate the capability of the ICARUS-T600 light detection system to allow a precise reconstruction of the temporal evolution of each event occurring in the detector and the association of neutrino events with the bunched structure of BNB.
Research Organization:
Brookhaven National Laboratory (BNL), Upton, NY (United States); Fermi National Accelerator Laboratory (FNAL), Batavia, IL (United States); SLAC National Accelerator Laboratory (SLAC), Menlo Park, CA (United States)
Sponsoring Organization:
USDOE Office of Science (SC), High Energy Physics (HEP)
Contributing Organization:
ICARUS Collaboartion
Grant/Contract Number:
AC02-07CH11359
OSTI ID:
2246780
Report Number(s):
FERMILAB-CONF--23-800; oai:inspirehep.net:2736963
Journal Information:
Journal of Instrumentation, Journal Name: Journal of Instrumentation Journal Issue: 01 Vol. 19; ISSN 1748-0221
Publisher:
Institute of Physics (IOP)Copyright Statement
Country of Publication:
United States
Language:
English

References (4)

An innovative technique for TPB deposition on convex window photomultiplier tubes journal December 2018
The laser diode calibration system of the ICARUS T600 detector at FNAL journal May 2020
Design and implementation of the new scintillation light detection system of ICARUS T600 journal October 2020
ICARUS at the Fermilab Short-Baseline Neutrino program: initial operation journal June 2023

Figures / Tables (6)

Figure 1(p. 3)figure Figure 1
Figure 2(p. 5)figure Figure 2
Figure 3(p. 5)figure Figure 3
Figure 4(p. 6)figure Figure 4
Figure 5(p. 6)figure Figure 5
Figure 6(p. 7)figure Figure 6

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Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
TPC
double-phase
ionization
neutrino detectors
noble liquid detectors
scintillation
time projection chambers