Conveners
Session 2: Assay and Screening Techniques
- Kevin Lesko (LBNL)
Eric Hoppe
(Pacific Northwest National Laboratory)
18/03/2015, 10:50
Invited
Presentation
The variety of next generation highly sensitive radiation detectors searching for trace radioactive isotopes, dark matter, and neutrinoless double beta decay must be constructed using ultra-low background materials. Because of the cost and complexity of these new detector systems, foreseeable backgrounds can no longer merely be discovered when the detector is first operated, essentially...
Dr
Isaac Arnquist
(PNNL)
18/03/2015, 11:10
Contributed
Presentation
This paper discusses the analytical methods developed for determining the radiopurity, specifically the U and Th content, of a variety of materials considered for use in rare-event and ultralow background physics experiments, such as dark matter and neutrino studies. Due to the extremely stringent background budgets for these fundamental science studies, all materials and components must be...
Prof.
Richard Schnee
(South Dakota School of Mines & Technology)
18/03/2015, 11:30
Invited
Presentation
The BetaCage is a proposed neon time-projection chamber for the ultra-sensitive (and nondestructive) screening of material surfaces for alpha- and beta-emitting contaminants, such as those due to implantation of radon progeny. The expected sensitivity is 0.1 betas per keV-m^2-day and 0.1 alphas per m^2-day. I will describe the detector design, results from background simulations, and results...
Dr
Xavier Sarazin
(Laboratoire de l'Accélérateur Linéaire, IN2P3-CNRS / Université Paris-Sud)
18/03/2015, 11:50
Contributed
Presentation
The BiPo-3 detector is running in Canfranc Underground Laboratory (LSC, Spain) since 2013. It is a new generation detector, dedicated to measure ultra high natural radiopurity in Tl-208 and Bi-214 of thin materials, with a total surface area of measurement of 3.6 m2.
The Tl-208 and Bi-214 isotopes are the two main background natural isotopes in the search for the neutrinoless double decay....
