The quest for AMS of 182Hf – why poor gas gives pure beams Martin Martschini, Johannes Lachner, Silke Merchel, Alfred Priller, Peter Steier, Anton Wallner, Alexander Wieser and Robin Golser EPJ Web Conf., 232 (2020) 02003 Published online: 06 April 2020 DOI: 10.1051/epjconf/202023202003