Call for proposals

The European X-Ray Free-Electron Laser Facility (European XFEL, encourages the scientific community worldwide to submit proposals for Early User Experiments via the User Portal to the European XFEL (UPEX). The deadline has now been extended until Monday 2 July 2018 08:00 (UTC +2:00 / GMT +2:00)!

Beamtime will be allocated to successful proposals in November and December 2018 and from the beginning of February to the end of June 2019. The allocated beamtime will be provided in 12-hour shifts.

The following scientific instruments will be made available during this period:

Instrument overview:

All proposals submitted in this call will be reviewed for their scientific quality by panels of international experts and, in addition, checked for safety and feasibility conditions. Proposals shall consider the specific conditions for Early User Experiments expected for this allocation period.

General queries can be directed to the European XFEL User Office:


Phone: +49 (0) 40 8998 -6937 or -6767