A D2O detector for flux normalization of a pion decay-at-rest neutrino source

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We report on the technical design and expected performance of a 592 kg heavy-water-Cherenkov detector to measure the absolute neutrino flux from the pion-decay-at-rest neutrino source at the Spallation Neutron Source (SNS) at Oak Ridge National Laboratory (ORNL). The detector will be located roughly 20 m from the SNS target and will measure the neutrino flux with better than 5% statistical uncertainty in 2 years. This heavy-water detector will serve as the first module of a two-module detector system to ultimately measure the neutrino flux to 2-3% at both the First Target Station and the planned Second Target Station of the SNS. This detector will significantly reduce a dominant systematic uncertainty for neutrino cross-section measurements at the SNS, increasing the sensitivity of searches for new physics.
Publisher
IOP Publishing Ltd
Issue Date
2021-08
Language
English
Article Type
Article
Citation

JOURNAL OF INSTRUMENTATION, v.16, no.8

ISSN
1748-0221
DOI
10.1088/1748-0221/16/08/P08048
URI
http://hdl.handle.net/10203/291143
Appears in Collection
PH-Journal Papers(저널논문)
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