R&D for the ultra low BG multipurpose detector using noble gas

2016 Fiscal Year Final Research Report

• Project/Area Number: 26707009
• Research Category: Grant-in-Aid for Young Scientists (A)
• Allocation Type: Partial Multi-year Fund
• Research Field: Particle/Nuclear/Cosmic ray/Astro physics
• Research Institution: Tohoku University
• Principal Investigator: Ueshima Kota 東北大学, ニュートリノ科学研究センター, 助教 (80605379)
• Project Period (FY): 2014-04-01 – 2017-03-31
• Keywords: 二重ベータ崩壊探索 / 希ガス / 暗黒物質探索 / シンチレーション光

Outline of Final Research Achievements

R&D for the multipurpose detector for neutrino less double beta decay using xenon, dark mater search using noble gas, and pp solar neutrinos observation was performed. The plastic scintillator vessel in which TPB wavelength shifter was melted was developed. The wavelength shifted scintillation light of liquid xenon was detected using photomultiplier tubes. It has been demonstrated that ultra-low background can be achieved by utilizing the difference in emission waveform between plastic scintillator and liquid xenon.

Free Research Field

ニュートリノ物理学、暗黒物質探索