Dr Marcus Altmaier studied chemistry at the University of Cologne, where he completed his doctorate in nuclear chemistry in 1999. Since December 2000 M. Altmaier has been working at the Institute for Nuclear Waste Management at the Karlsruhe Institute of Technology (KIT-INE). KIT-INE works in the context of safety research on nuclear waste management. Its main activities focus on research into various (geo)chemical processes that may be required as part of safety analyses. Nuclear chemical work is highly relevant in this field of work in order to be able to reliably predict the behaviour of long-lived radionuclides such as plutonium in different scenarios.

The scientific work of M. Altmaier primarily comprises the chemistry of actinides and long-lived fission products in aqueous solution. Numerous studies deal with the solubility and complex formation of actinides in aquatic systems relevant to repositories. The basic scientific work includes the determination and evaluation of thermodynamic data as well as the derivation of reliable model parameters for the description of ion-ion interaction processes. The work requires complementary spectroscopic analyses and Mr Altmaier has gained a good overview of modern analytical and radiochemical methods based on many years of experience in this field of research. Dr Altmaier works on numerous application-related third-party funded projects within the framework of repository safety research. One focus here is the preparation and coordination of collaborative projects in a European and international context.

Dr Gert Langrock works in the Radiochemical Laboratory at Framatome GmbH in Erlangen. He studied chemistry at the University of Leipzig. He completed his dissertation "On problems of liquid scintillation spectroscopy in transactinide experiments" at the Institute of Nuclear Chemistry at the University of Mainz under Prof. Dr Jens Volker Kratz.


He has been working at Framatome since 2003, focusing on the experimental chemistry of fission products in nuclear power plant accidents and the behaviour of nuclear meltdowns. At the same time he has also been active as a project manager in R&E projects for many years. He has also worked on numerous customer and service projects in various functions. He was also a lecturer at the Nuremberg University of Applied Sciences for the subject "Radiochemistry and Nuclear Technology" from 2006-2011.

Dr Katharina Müller has headed the "Interfacial Processes" department at the Institute of Resource Ecology at the Helmholtz-Zentrum Dresden-Rossendorf (IRE / HZDR) since 2021.

After studying waste management and contaminated sites at the TU Dresden and a research stay at the Universidade Federal de Minas Gerais (Brazil), she completed her doctorate in 2010 at the then Institute of Radiochemistry at the Dresden-Rossendorf Research Centre. She subsequently received research fellowships at the École Nationale Supérieur de Chimie de Paris (France) and Kyoto University (Japan).

In the "Interfacial Processes" department at the IRE / HZDR, she and her colleagues are investigating the reactions of long-lived radionuclides at water-mineral interfaces. To this end, they combine modern methods of spectroscopy and microscopy for the in-situ investigation of the molecular environment of actinides and fission products in aqueous solutions, at interfaces and in solid phases. Determined complex formation reactions and complex structures can characterise and quantify these interactions. They thus form a solid basis for a reliable thermodynamic description of the analysed systems, which can be integrated into thermodynamic databases. The quality-assured databases are in turn the basis for predicting the mobility of radionuclides as part of a long-term safety analysis of nuclear waste repositories.

Bernd Neumaier studied chemistry at the University of Cologne and obtained his doctorate in nuclear chemistry in 1996 under Prof G. Stöcklin. From 1996 to 2006, he was Head of the Cyclotron/Radiopharmacy Department at the Department of Nuclear Medicine at Ulm University Hospital. In addition to routine production, he was responsible for radiochemical research. In 2006, he moved to the Max Planck Institute for Neurological Research. In 2009, he completed his habilitation in nuclear chemistry at the University of Cologne. After turning down a W3 position at the DKFZ of the Ruprecht-Karls-University Heidelberg, he accepted a W3 professorship at the University Hospital Cologne in 2013. There he founded the Institute of Radiochemistry and Experimental Molecular Imaging. In 2015, he was appointed to a W3 professorship at the Institute of Neuroscience and Medicine: Nuclear Chemistry (INM-5) at Forschungszentrum Jülich, where he has been Director ever since. Bernd Neumaier was a long-standing committee member of the Working Group for Radiochemistry and Radiopharmacy and a board member of the German Society for Nuclear Medicine. He is also a member of the DGN's Radiopharmacy Committee.

Further information will follow.

Dr Alice Seibert studied chemistry at Johannes Gutenberg University Mainz and completed her doctorate in 1999 at the Institute of Nuclear Chemistry there under Prof Dr Jens-Volker Kratz as part of a joint federal government project on repository research. After completing her doctorate, she continued this topic at the University of Mainz.

Since the end of 2013, she has been employed as an official of the European Commission at the JRC Karlsruhe and is involved in projects in the field of nuclear safety research and nuclear waste management.