New 3D fine-grained scintillation detector for the T2K experiment

Abstract

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.

arXiv commentINSTR20: Instrumentation for Colliding Beam Physics

References in corpus (6)

• The T2K Experiment
• Measurements of the T2K neutrino beam properties using the INGRID on-axis near detector
• The near neutrino detector for the T2K experiment
• A fully active fine grained detector with three readout views
• A new method for an improved anti-neutrino energy reconstruction with charged-current interactions in next-generation detectors
• Beam test results of 3D fine-grained scintillator detector prototype for a T2K ND280 neutrino active target