Measurement of Beam-Correlated Background Neutrons from the Fermilab Booster Neutrino Beam in ANNIE Phase-I
Asheley R. Back, John F. Beacom, Tomaso Boschi, Daniel Carber, Erika, Catano-Mur, Mingqian Chen, Evangelia Drakopoulou, Francesca Di Lodovico,, Andrey Elagin, Jonathan Eisch, Vincent Fischer, Steven Gardiner, Jeff, Griskevich, David Grzan, Robert Hatcher, Frank Krennrich
TL;DR
This paper measures beam-correlated neutron backgrounds at Fermilab's Booster Neutrino Beam to ensure low background levels for ANNIE's neutrino detection and inform other nearby experiments.
Contribution
It provides the first characterization of beam-induced neutron backgrounds in the ANNIE hall, demonstrating their levels are manageable for future neutrino research.
Findings
Background levels are sufficiently low for ANNIE Phase-I
Neutron backgrounds from the beam are characterized and quantified
Results are relevant for other BNB experiments nearby
Abstract
The Accelerator Neutrino Neutron Interaction Experiment (ANNIE) aims to make a unique measurement of neutron yield from neutrino-nucleus interactions and to perform R&D for the next generation of water-based neutrino detectors. In this paper, we characterize beam-induced neutron backgrounds in the experimental hall at Fermi National Accelerator Laboratory. It is shown that the background levels are sufficiently low to allow the next stage of the experiment to proceed. These measurements are relevant to other Booster Neutrino Beam (BNB) experiments located adjacent to ANNIE Hall, where dirt neutrons and sky-shine could present similar backgrounds.
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