Call for Proposals


The HZB User Coordination welcomes the submission of proposals for the large scale facility BESSY II.

Next round for Beamtime allocation in 2020-II will be opened in January 2020.

Next deadline for submission: March 1st 2020

Proposal submission

Beamtime applications have to be submitted through the online General Access Tool (GATE).

Users not yet registered in the HZB user database have to do so before being able to apply for beamtime or to be included as a co-proposer.

For guidance in writing a proposal please refer to the Guide for beamtime application.


The HZB Scientific Selection Panel (SSP) assesses the scientific merit of beamtime applications and gives recommendations for beamtime allocation. The decision is based solely on the information given in the proposals and, if applicable, on results, experimental reports and publications related to previous HZB experiments.

The next meeting of the SSP will be in April 2020.

Instruments on schedule

Radiation Protection

Since August 2012, the whole BESSY II experimental hall is a radiation safety controlled area. Please refer to Top-Up radiation safety requirements for more information.