The new accelerator facility FAIR is under construction at GSI. Learn more.


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Setup of the Proposed Accelerator Facility FAIR

The proposed project FAIR (Facility for Antiproton and Ion Research) is an international accelerator facility of the next generation. It builds on the experience and technological developments already made at the existing GSI facility, and incorporates new technological concepts. At its heart is a double ring facility with a circumference of of 1100 meters. A system of cooler-storage rings for effective beam cooling at high energies and various experimental halls will be connected to the facility. The existing GSI accelerators - together with the planned proton-linac - serve as injector for the new facility. The double-ring synchrotron will provide ion beams of unprecedented intensities as well as of considerably increased energy. Thereby intense beams of secondary beams - unstable nuclei or antiprotons - can be produced.

The system of storage-cooler rings allows the quality of these secondary beams - their energy spread and emittance - to be drastically improved. Moreover, in connection with the double ring synchrotron, an efficient parallel operation of up to four scientific programs can be realized at a time. The project is based on many technological innovations, the most important of which are five beam properties:

  • Highest Beam Intensities
  • Brilliant Beam Quality
  • Higher Beam Energies
  • Highest Beam Power
  • Parallel Operation
GSI Helmholtzzentrum für Schwerionenforschung
The planned facility FAIR (red) will be connected to the existing GSI accelerators (blue).
The planned facility FAIR (red) will be connected to the existing GSI accelerators (blue).
GSI Helmholtzzentrum für Schwerionenforschung