Radon daughter removal from PTFE surfaces and its application in liquid xenon detectors S. Bruenner, D. Cichon, G. Eurin, P. Herrero Gómez, F. Jörg, T. Marrodán Undagoitia, H. Simgen and N. Rupp Eur. Phys. J. C, 81 4 (2021) 343 Published online: 21 April 2021 DOI: 10.1140/epjc/s10052-021-09047-2