CERN Accelerating science


Helmholtzzentrum für Schwerionenforschung


GSI operates a worldwide unique large scale accelerator facility for heavy ions and currently employs about 1,100 people. In addition approximately 1,000 researchers from universities and other research institutes around the world use the facility for their experiments.

GSI is a limited liability company (Ger. GmbH). Associates are the German Federal Government (90%), the State of Hessen (8%), the State of Rhineland Palatinate (1%) and the Free State of Thuringia (1%). They are represented in the Board of Directors by the Federal Ministry of Education and Research and the respective Ministries. GSI is a member of the Helmholtz Association, Germany’s largest research organisation.

The best known results are the discovery of six new chemical elements and the development of a new type of tumor therapy using ion beams.

Currently the international accelerator centre called FAIR (Facility for Antiproton and Ion Research) one of the largest research projects in the world is being built adjacent to GSI.