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


GSI is member of the


GSI associates


GSI Helmholtzzentrum für Schwerionenforschung

GSI Helmholtzzentrum für Schwerionenforschung operates a unique large-scale accelerator for heavy ions. Researchers from around the world use this facility for experiments that help them make fascinating discoveries in basic research. In addition, they continually develop new and impressive applications.

Photo: Gaby Otto / GSI Helmholtzzentrum für Schwerionenforschung Gmbh
For the 19th time 260 high school students from all over the state of Hesse had the opportunity to visit FAIR and GSI on December 3, 2016 within the lecture series "Saturday Morning Physics" of the Technical University Darmstadt. They gained an insight into the current research at GSI and FAIR and explored the GSI accelerators and experiments in guided tours.

Photo: G. Otto/GSI Helmholtzzentrum für Schwerionenforschung
The centerpiece of the future FAIR accelerator facility will be the 1.1-kilometer-long SIS100 ring accelerator, which will especially stand out because of its intense high-energy ion beams. To use these accelerated beams for experiments, they first have to be extracted from the ring accelerator. Darmstadt has just received the first of a series of six-pole magnets that will play a crucial role in the slow extraction process at the SIS100.

FAIR – the future accelerator facility

In the next few years the new international accelerator facility FAIR, one of the largest research projects worldwide, will be erected at GSI. At FAIR an unprecedented variety of experiments will be possible. Thereby physicists from all around the world will be able to gain new insights into the structure of matter and the evolution of the universe from the Big Bang to the present.
Learn more about FAIR: GSI about FAIR or FAIR web page


Cancer Treatment with Ion Beams

GSI is the birthplace of a new form of cancer treatment. This development was the result of many years of research in conjunction with GSI’s large ion-beam accelerator system. The advantage of this new treatment modality is that the ion beam selectively damages tumor tissues while sparing the surrounding healthy tissues. More...


The Creation of New Elements

Chemical elements are produced in stars and stellar explosions. Elements are the building blocks of all materials that surround us – including every atom of our bodies. The universe is also home to a large number of atoms that do not occur on earth. One of the key tasks of the researchers at GSI is to attempt to create previously unknown elements. More...