Conveners
Session 4 - Fabrication methods and surface contamination control
- Lino Miramonti (MI)
Session 4 - Fabrication methods and surface contamination control
- Lino Miramonti (MI)
Dr
Oleg Chkvorets
(Laurentian University)
10/04/2013, 16:00
oral presentation
Dr
Luca Maria Pattavina
(Milano Bicocca University)
10/04/2013, 16:25
Fabrication methods and surface contamination control
oral presentation
In neutrinoless double beta decay and dark matter searches, one of the main issues is to increase the experimental sensitivity through careful material selection and production, minimizing the background contributions. In order to achieve the required, extremely low, counting rates, very stringent requirements must be fulfilled in terms of bulk material radio-purity. As the experimental...
Dr
Hiroshi Ogawa
(Institute for Cosmic Ray Research University of Tokyo)
10/04/2013, 17:15
Fabrication methods and surface contamination control
oral presentation
An 800kg liquid xenon detector (XMASS) was constructed in Kamioka laboratory, Japan in 2010, and a commissioning run was conducted from November 2010 to June 2012. Although we have achieved the design level of internal backgrounds, it was found that surface contamination is the major contribution of the remaining background. The origins of the surface background have been extensively...
Dr
Chris Jillings
(SNOLAB/Laurentian University)
10/04/2013, 17:35
Fabrication methods and surface contamination control
oral presentation
DEAP-3600 is a 3600kg single-phase liquid-argon dark matter detector
under construction at SNOLAB. The argon is held an an acrylic vessel
which is optically transparent at the shifted wavelength of 420 nm; an
effective neutron shield; and physically strong.
Because the acrylic (Poly Methyl MethAcrylate) is in contact with the liquid argon it can be a source of alpha-induced backgrounds....
Dr
HECTOR GOMEZ
(Laboratoire de l'Accélérateur Linéaire (LAL-Orsay))
10/04/2013, 17:55
Fabrication methods and surface contamination control
oral presentation
New generation experiments in Astroparticle Physics need to operate in really restrictive background conditions, which implies the use of high radiopure materials for the experimental setup construction. For this reason the screening of the materials with enough sensitivity has become a challenge that sometimes cannot be afforded with standard techniques like Germanium detector...
