论文标题
T2K实验的新3D细粒闪烁检测器
New 3D fine-grained scintillation detector for the T2K experiment
论文作者
论文摘要
T2K长基线中微子实验的主要目标是对中微子振荡参数的精确度量和在Lepton部门中寻找CP侵略的参数。 2017年，T2K合作启动了近探测器升级项目。该升级旨在将振荡参数的系统错误从6-7％降低到3-4％。为了实现此类目标，ND280升级建议实施新的上游跟踪器，以提高广角接受度和低动量阈值。 ND280升级中引入的新技术之一是具有3D WLS纤维读数的超细粒度（SuperFGD）闪烁体目标。该探测器将包括约200万（192x184x56）1厘米大小的闪烁立方体。每个立方体对于WLS纤维都有三个正交孔，可提供3D光学读数。检测器的总质量约为2吨，读数通道的数量约为60,000。本文介绍了该检测器开发的当前状态。
The main goal of the T2K long-baseline neutrino experiment is the precise measurement of the parameters of neutrino oscillation and the search for CP-violation in the lepton sector. In 2017, the T2K collaboration launched the Near Detector Upgrade project. This upgrade aims to reduce the systematic errors of the oscillation parameters from 6-7% to 3-4%. In order to accomplish such goal, ND280 Upgrade proposes to implement new upstream trackers to improve the wide angle acceptance and low momentum threshold. One of the novel technologies introduced in ND280 Upgrade is super fine-grained (SuperFGD) scintillator target with 3D WLS fiber readout. The detector will consist of about 2 million (192x184x56) scintillation cubes of 1-cm size. Each cube has three orthogonal holes for WLS fibers to provide 3D optical readout. The total mass of the detector is about 2 tons and the number of the readout channels is about 60,000. This paper presents the current status of the development of this detector.
