Development of Double-Layer Liquid Scintillator Detector with Different Wavelengths for Neutrino Research

2016 Fiscal Year Final Research Report

• Project/Area Number: 15K13472
• Research Category: Grant-in-Aid for Challenging Exploratory Research
• Allocation Type: Multi-year Fund
• Research Field: Particle/Nuclear/Cosmic ray/Astro physics
• Research Institution: Tohoku University
• Principal Investigator: SHIMIZU ITARU 東北大学, ニュートリノ科学研究センター, 准教授 (10400227)
• Research Collaborator: HAYASHI Ayumi
• Project Period (FY): 2015-04-01 – 2017-03-31
• Keywords: シンチレーション検出器開発

Outline of Final Research Achievements

We aim to achieve the discrimination of light output points to reduce backgrounds in a double-layer liquid scintillator detector, based on a light sensor sensitive to the wavelengths of the light source. Using a small prototype, we performed photon counting of the liquid scintillator with different wavelengths in scintillation using a combined system which consists of a wavelength shifting plate and a photomultiplier tube, and confirmed a discrimination ability as expected from a simulation. As a consequence, the study has reached the stage to start to discuss a detailed plan for a future large detector to discriminate light output points.

Free Research Field

素粒子実験