TY - GEN
T1 - Surface purity control during XMASS detector refurbishment
AU - Kobayashi, Kazuyoshi
N1 - Publisher Copyright:
© 2015 AIP Publishing LLC.
PY - 2015/8/17
Y1 - 2015/8/17
N2 - The XMASS project aims at detecting dark matter, pp and 7Be 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.
AB - The XMASS project aims at detecting dark matter, pp and 7Be 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.
UR - http://www.scopus.com/inward/record.url?scp=85006210710&partnerID=8YFLogxK
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U2 - 10.1063/1.4927988
DO - 10.1063/1.4927988
M3 - Conference contribution
AN - SCOPUS:85006210710
T3 - AIP Conference Proceedings
BT - Low Radioactivity Techniques 2015, LRT 2015
A2 - Orrell, John L.
PB - American Institute of Physics Inc.
T2 - 5th International Workshop in Low Radioactivity Techniques, LRT 2015
Y2 - 18 March 2015 through 20 March 2015
ER -