Clemens Walther is Professor at the Leibniz University Hannover, Germany and Head of the Institute of Radioecology and Radiation Protection. He is president of the German-Swiss Society for Radiation Protection and Head of the Steering Board of the Competence Center Radiation Research (KVSF). Since 2015 he is a member of the German Commission for Radiation Protection. Prof. Walther’s past appointments include being Dean of the Faculty of Mathematics and Physics (2019–2021), Chair of the Nuclear Chemistry Section of the German Chemical Society (2019-2022), Head of the European Network on Nuclear and Radiochemistry Education and Training (2016–2022), Member of the extended governing board of the German Society for Mass Spectrometry (DGMS) (2012–2015) and Head of the mass spectrometry division of the German Physical Society (DPG) (2012–2015).