Conveners
Session 5: Pure Materials (continued)
- Tad Kishimoto
Ms
Cabot-Ann Christofferson
(South Dakota School of Mines of Technology)
19/03/2015, 10:40
Contributed
Presentation
Locating neutrinoless double beta decay experiments deep underground mitigates backgrounds originating from cosmic rays. Of equal importance is constructing the inner shielding and detector components using ultra-low-background materials that contain the lowest levels of radio-contaminates to aid in the mitigation of backgrounds from natural sources. Because of the favorable thermal and...
Dr
Alexander Chepurnov
(s: Skobeltsyn Institute of Nuclear Physics Lomonosov Moscow State University (SINP MSU))
19/03/2015, 11:00
Contributed
Presentation
To construct detectors for future low background experiments, a lot of ultra-pure construction materials will be needed. Our studies of various Ti samples have shown that the levels of radioactive contaminations (U and Th) in commercially available industrial titanium can vary from 0.2 to 100 mBq/kg. If the way to produce titanium in the tons scale with very low level of contaminations (below...
Dr
Cédric Cerna
(Centre d'Etudes Nucléaires de Bordeaux Gradignan)
19/03/2015, 11:20
Contributed
Presentation
The SuperNEMO Demonstrator experiment aim to study the neutrino less double beta decay of 7kg of 82Se in order to reach a limit on the light Majorana neutrino mass mechanism T1/2(0nubb) > 6.5 . 10^24 years (90%CL) equivalent to a mass sensitivity m_bb < 0.20 - 0.40 eV (90%CL) in two years of data taking. The detector construction started in 2014 and the installation in the Laboratoire...
Aksel Hallin
(University of Alberta)
19/03/2015, 11:40
Invited
Presentation
The DEAP-3600 experiment will search for dark matter particle interactions on 3.6 tonnes of liquid argon at SNOLAB. The argon is contained in a large low-background acrylic vessel viewed by 255 8-inch photomultiplier tubes. Very good pulse-shape discrimination has been demonstrated for scintillation in argon, and the detector has been designed for a total background budget, including...
Dr
Kazuyoshi Kobayashi
(ICRR, University of Tokyo)
19/03/2015, 12:00
Invited
Presentation
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 835kg liquid xenon. After the commissioning runs, XMASS detector was
refurbished to minimize the background contribution mainly from PMT sealing
material and...
