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.

Otmar D. Wiestler
Otmar D. Wiestler, former Chairman of the Board of Directors at the German Cancer Research Center, has assumed office as President of the Helmholtz Association on September 1st, 2015. He is taking over from Jürgen Mlynek, who has stepped down after ten years and two terms in office.

Copyright: G. Otto, GSI Helmholtzzentrum für Schwerionenforschung
An international team of researchers at GSI Helmholtzzentrum für Schwerionenforschung has succeeded in discovering four new atomic nuclei. The exotic nuclei are one isotope each of the elements berkelium and neptunium and two isotopes of the element americium. The scientists used a new, highly sensitive method to create and detect the nuclei.

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...