Each delegation to the Council can be accompanied by up to two advisors. The Council may decide to hear experts, invite guests and admit observers. It is led by a chairperson and a vice-chairperson who are elected from among the delegates for a period of two years and who become supra partes after their election.
Chair and Vice Chair
Chair of the Council
- Federico Boscherini (IOM – CNR, on leave from University of Bologna)
Vice Chair of the Council
- Ryszard Sobierajski (Institute of Physics of the Polish Academy of Sciences)
Delegates
Denmark
- Martin Meedom Nielsen (Technical University of Denmark)
- Nicolai Narvestad (Danish Agency for Higher Education and Science)
France
- Catalin Miron (Commissariat à l'énergie atomique et aux énergies alternatives)
- Sylvain Ravy (Centre national de la recherche scientifique)
Germany
- Beate Heinemann (Deutsches Elektronen-Synchrotron)
- Dirk Steinbach (Bundesministerium für Bildung und Forschung)
Hungary
- András Siegler (National Research, Development and Innovation Office)
- György Vankó (Wigner Research Centre for Physics)
Italy
- Stefano Fabris (Consiglio Nazionale delle Ricerche)
- Carlo Pagani (Istituto Nazionale di Fisica Nucleare)
Poland
- Michał Goszczyński (Ministry of Science and Higher Education)
- Marcin Sikora (Jagiellonian University)
Russia
- Mikhail Kovalchuk (National Research Centre "Kurchatov Institute")
Slovak Republic
- Karel Saksl (Technical University of Kosice; Faculty of Materials, Metallurgy and Recycling)
- Pavol Sovák (P.J. Šafárik University)
Sweden
- Lars Börjesson (Chalmers University of Technology)
- Johan Holmberg (Vetenskapsrådet - Swedish Research Council)
Switzerland
- Gabriel Aeppli (Paul Scherrer Institute)
- Simon Berger (State Secretariat for Education, Research and Innovation)
United Kingdom of Great Britain and Northern Ireland
- Helen Beadman (UK Research and Innovation)
- Jon Marangos (Imperial College London)
Observers
Spain
- Guadalupe C. de Córdoba Lasunción (Ministerio de Ciencia, Innovación y Universidades)
- Rodolfo Miranda (IMDEA Nanociencia / Universidad Autónoma de Madrid)
Advisors
France
- Marie-Hélène Mathon (Commissariat à l'énergie atomique et aux énergies alternatives)
- Denis Morineau (Centre national de la recherche scientifique)
Germany
- Svenja Kruse (Bundesministerium für Bildung und Forschung)
- Wim Leemans / Arik Willner (Deutsches Elektronen-Synchrotron)
Italy
- Alberto Morgante (University of Trieste and IOM-CNR)
- Daniele Sertore (Istituto Nazionale di Fisica Nucleare)
Poland
- Tomasz Leżański (National Centre for Nuclear Research)
- Dagmara Milewska (National Centre for Nuclear Research)
Slovak Republic
- Martin Šponiar (Ministry of Education, Research, Development and Youth)
Sweden
- Maja Hellsing (Vetenskapsrådet - Swedish Research Council)
Switzerland
- Doris Wohlfender-Bühler (State Secretariat for Education, Research and Innovation)
Secretary to the Council
- Malte Laub (European XFEL GmbH)
Vice Secretary to the Council
- Friederike Itzen (European XFEL GmbH)