PoS - Proceedings of Science
Volume 380 - Particles and Nuclei International Conference 2021 (PANIC2021) - Development of accelerators and detectors
Neutron beam test with 3D-projection scintillator tracker prototypes for long-baseline neutrino oscillation experiments
G. Yang
Full text: pdf
Pre-published on: March 09, 2022
Published on: May 24, 2022
The long-baseline neutrino oscillation experiments rely on detailed models of neutrino interactions on nuclei. These models constitute an important source of systematic uncertainty, driven in part because detectors to date have been blind to final state neutrons. We are proposing a three-dimensional projection scintillator tracker as a near detector component in the next generation long-baseline neutrino experiments such as T2K upgrade and DUNE.
Such a detector consists of a large number of scintillator cubes with three orthogonal optical fibers crossing through each cube. Due to the good timing resolution and fine granularity, this technology is capable of measuring neutrons in neutrino interactions on an event-by-event basis and will provide valuable data for refining neutrino interaction models and ways to reconstruct neutrino energy. Two prototypes have been exposed to the neutron beamline in Los Alamos National Lab (LANL) in both 2019 and 2020 with neutron energy ranging from 0 to 800 MeV. These beam tests, aimed at characterizing our detector's response to neutrons, is a critical step in demonstrating the potential of this technology. In this paper, the LANL beam test setup will be described and a neutron total cross section measurement methodology will be shown.
DOI: https://doi.org/10.22323/1.380.0101
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