Impact of a cryogenic baffle system on the suppression of radon-induced background in the KATRIN Pre-Spectrometer. (11th October 2018) - Görhardt, S.; Bonn, J.; Bornschein, L.; Drexlin, G.; Fränkle, F.M.; Gumbsheimer, R.; Mertens, S.; Müller, F.R.; Thümmler, T.; Wandkowsky, N.; Weinheimer, C.; Wolf, J.