Call for expressions of interest

Call for expressions of interest in molecular water research at European XFEL

The European X-Ray Free-Electron Laser Facility (European XFEL) would like to open a call for Expressions of Interest from the scientific community on the focussed research topic of molecular water. We encourage the international research community to submit these short research descriptions about how their work will address open questions in the field of molecular water research using the unique capabilities of the European XFEL and its instruments. The deadline for this submission is 4 April 2022.

Feedback on the expressions of interest will be provided by the end of April. Authors of selected expressions of interest will be asked to submit a full proposal in the next proposal call in May-June 2022. Successful proposals will be allocated beamtime in the first half of 2023 (run 2023-01).

Please note that we are organizing a specific information session about this call for expressions of interest and the upcoming call for proposals at PETRAIII at DESY in the afternoon of 03 March 2022 in the framework of the Centre for Molecular Water Research Days ( taking place on 2-4 March 2022. Registration is free of charge and the programme of the event is available under

Scientific excellence is the primary criterion for the acceptance of the final proposals in molecular water research submitted on the basis of this call for expressions of interest.

The involvement of an international team of co-proposers in the projects addressed by these expressions of interest would be welcome.

In order to submit an expression of interest discuss your project with the Leading Scientist of the concerned instrument (see contact list below), and submit through the specific electronic form by 04 April 2022. You will be requested to state your contact data and validate your email address before being able to proceed to the form.

Inquiries can be addressed to Sakura Pascarelli (, Scientific Director for hard X-ray instruments, Serguei Molodtsov (, Scientific Director for soft X-ray instruments and Sample Environment and Characterization, or the Leading Scientists of the Scientific Instruments:   


More information about the use of your personal data in the frame of this call for expressions of interest can be found in the specific privacy notice.

For technical support, please contact