A D 2 O detector for flux normalization of a pion decay-at-rest neutrino source
A D 2 O detector for flux normalization of a pion decay-at-rest neutrino source
复制标题
用于介子静止衰变中微子源通量归一化的 D 2 O 探测器
DOI：
10.1088/1748-0221/16/08/p08048
复制
发表时间：
2021
影响因子：
1.3
通讯作者：
Cabrera-Palmer, B.
中科院分区：
文献类型：
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作者：
Akimov, D.;An, P.;Awe, C.;Barbeau, P.S.;Becker, B.;Belov, V.;Bernardi, I.;Blackston, M.A.;Bolozdynya, A.;Cabrera-Palmer, B.
我们报道了一台592公斤重的重水切伦科夫探测器的技术设计和预期性能，该探测器用于测量橡树岭国家实验室(ORNL)散裂中子源(SNS)的介子静态衰变中微子源的绝对中微子通量。探测器将位于距离SNS目标约20米的地方，将在两年内测量统计不确定度优于5%的中微子通量。这个重水探测器将作为两个模块探测器系统的第一个模块，最终在SNS的第一个目标站和计划中的第二个目标站测量到2-3%的中微子通量。这个探测器将显著降低SNS中微子截面测量的主要系统不确定性，增加搜索新物理的灵敏度。
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.