Information for external companies and guests


External employees are employees, who work in an external facility. From the GSI point of view external employees are:

  • employees of a company in the industry
  • employees of universities, institutes and research facilities (master students, bachelor students, phd students, guest scientists)
  • other guests

GSI employees can also be external employees, if they work in research facilities outside the , e.g. Forschungszentrum Karlsruhe, FZ Jülich, CERN, GANIL. GSI employees, who work in controlled areas outside the GSI, have to note the following information, find in the pdf under the following link §25-Strahlenschutzanweisung beachten. More information can be foundhere.


Before guest scientists come to GSI, they need to contact prior their arrival the GSI Welcome office.


Since 2020 new forms are available for scientific guest and users, enabling the preparation of necessary steps before arrival. The respective forms can be found on the website of the Welcome Office .
The Welcome Office is the main point of contact for guest scientist and users of our facilities planning a stay at GSI/FAIR. Visitors and guests for workshop or lectures do not need to register.
The Welcome Office is taking care of Guest Contracts, Home Institution Declarations and Invitations (for visa application) and give advice on health and liability insurances. The Welcome Office also handles reimbursement requests within the French-German-Collaboration Agreement IN2P3-CEA/DRF-GSI and several EU Transnational Access treaties (ENSAR, STRONG, Laserlab Europe).