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Removing krypton from xenon by cryogenic distillation to the ppq level
XENON Collaboration, E. Aprile, J. Aalbers +119
The XENON1T experiment aims for the direct detection of dark matter in a cryostat filled with 3.3 tons of liquid xenon. In order to achieve the desired sensitivity, the background…
Limits on uranium and thorium bulk content in GERDA Phase I detectors
GERDA collaboration, M. Agostini, M. Allardt +113
Internal contaminations of U, U and Th in the bulk of high purity germanium detectors are potential backgrounds for experiments searching for neutrinoless d…
Radon depletion in xenon boil-off gas
S. Bruenner, D. Cichon, S. Lindemann +2
An important background in detectors using liquid xenon for rare event searches arises from the decays of radon and its daughters. We report for the first time a reduction of $^{22…
Results from a Calibration of XENON100 Using a Source of Dissolved Radon-220
The XENON Collaboration, E. Aprile, J. Aalbers +118
A Rn-220 source is deployed on the XENON100 dark matter detector in order to address the challenges in calibration of tonne-scale liquid noble element detectors. We show that the P…
A Rn-220 source for the calibration of low-background experiments
Rafael F. Lang, Andrew Brown, Ethan Brown +5
We characterize two 40 kBq sources of electrodeposited Th-228 for use in low-background experiments. The sources efficiently emanate Rn-220, a noble gas that can diffuse in a detec…
Flux Modulations seen by the Muon Veto of the GERDA Experiment
M. Agostini, M. Allardt, A. M. Bakalyarov +112
The GERDA experiment at LNGS of INFN is equipped with an active muon veto. The main part of the system is a water Cherenkov veto with 66~PMTs in the water tank surrounding the GERD…