%0 Journal Article %T Results from a calibration of XENON100 using a source of dissolved radon-220 %A XENON Collaboration (Aprile, E. et al %A Orrigo, S. E. A. %J Physical Review D %D 2017 %V 95 %N 7 %I Amer Physical Soc %@ 2470-0010 %G English %F XENONCollaborationAprile+Orrigo2017 %O WOS:000399945500001 %O exported from refbase (https://references.ific.uv.es/refbase/show.php?record=3101), last updated on Thu, 18 May 2017 16:31:27 +0000 %X 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 Pb-212 beta emission can be used for low-energy electronic recoil calibration in searches for dark matter. The isotope spreads throughout the entire active region of the detector, and its activity naturally decays below background level within a week after the source is closed. We find no increase in the activity of the troublesome Rn-222 background after calibration. Alpha emitters are also distributed throughout the detector and facilitate calibration of its response to Rn-222. Using the delayed coincidence of Rn-220-Po-216, we map for the first time the convective motion of particles in the XENON100 detector. Additionally, we make a competitive measurement of the half-life of Po-212, t(1/2) = (293.9 +/- (1.0)(stat) +/- (0.6)(sys)) ns. %R 10.1103/PhysRevD.95.072008 %U http://arxiv.org/abs/1611.03585 %U https://doi.org/10.1103/PhysRevD.95.072008 %P 072008-10pp