Conveners
Session 5: Purification/control techniques from radioactive noble gases
- Gerd Heusser (Max-Planck-Institut fuer Kernphysik)
Dr
Hardy Simgen
(MPIK - Heidelberg)
11/04/2013, 09:05
oral presentation
Mr
Sebastian Lindemann
(Max-Planck-Institut fuer Kernphysik)
11/04/2013, 09:30
Purification/control techniques from radioactive noble gases
oral presentation
Natural krypton contains the long-lived β-decaying isotope 85Kr which
represents for liquid xenon detectors looking for low-energetic, rare events a dangerous source of background. Within the scope of the XENON experiments we developed a dedicated tool based on mass-spectrometry to assay the krypton concentration in small xenon samples at the ppt-level.
In my talk I will shortly review the...
Florian Fraenkle
(Department of Physics and Astronomy, University of North Carolina at Chapel Hill)
11/04/2013, 09:50
Purification/control techniques from radioactive noble gases
oral presentation
The KArlsruhe TRItium Neutrino (KATRIN) experiment is a large-scale experiment for the model independent determination of the mass of electron anti-neutrinos with a sensitivity of 200 meV/c^2. It investigates the kinematics of electrons from tritium beta decay close to the endpoint of the energy spectrum. Low statistics at the endpoint requires an equally low background rate below 10^-2...
Prof.
Jose Busto
(CPPM / SuperNEMO Collaboration)
11/04/2013, 10:10
Purification/control techniques from radioactive noble gases
oral presentation
The background from the Radon decay chain is the strongest constraint for many experiments working at low energy and very low counting rate in particle and astroparticle physics. Classically, activated charcoal filters are used to dynamically capture the radon from the air or from the gas of the detectors. The activated charcoal has large effective surface and broad porosity, going from macro...
Prof.
Richard Schnee
(Syracuse University)
11/04/2013, 10:30
Purification/control techniques from radioactive noble gases
oral presentation
In order to reduce backgrounds from radon-daughter plate-out onto the wires of the BetaCage during its assembly, an ultra-low-radon cleanroom is being commissioned at Syracuse University. Air sampling measurements taken before connecting the vacuum-swing-adsorption radon mitigation system demonstrate the effectiveness of air circulation through standard HEPA filters at reducing the...
