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Author Kobayashi, Kazuyoshi
Source United States Department of Energy Office of Scientific and Technical Information
Content type Text
Language English
Subject Keyword INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY ♦ PHYSICS OF ELEMENTARY PARTICLES AND FIELDS ♦ ASTROPHYSICS, COSMOLOGY AND ASTRONOMY ♦ BERYLLIUM 7 ♦ COPPER ♦ DOUBLE BETA DECAY ♦ LIQUID SCINTILLATION DETECTORS ♦ LIQUIDS ♦ NONLUMINOUS MATTER ♦ PHOTOMULTIPLIERS ♦ PROTONS ♦ RADON ♦ SOLAR NEUTRINOS ♦ SURFACES ♦ XENON
Abstract The XMASS project aims at detecting dark matter, pp and {sup 7}Be solar neutrinos, and neutrino less double beta decay using large volume of pure liquid xenon. The first physics target of the XMASS project is to detect dark matter with 835 kg liquid xenon. After the commissioning runs, XMASS detector was refurbished to minimize the background contribution mainly from PMT sealing material and we restarted data taking in November 2013. We report how we control surface purity, especially how we prevent radon daughter accumulation on the detector copper surface, during XMASS detector refurbishment. The result and future plan of XMASS are also reported.
ISSN 0094243X
Educational Use Research
Learning Resource Type Article
Publisher Date 2015-08-17
Publisher Place United States
Volume Number 1672
Issue Number 1


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