50 years GSI



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Deep insights into accelerators and fundamental research



Where do the ions accelerated at GSI come from? What happens in the main control room? And how does a detector measure the tiniest parts of our matter? Three articles provide a deep insight into the world of accelerators and fundamental research:

Starting point of the GSI accelerator facility: Ion sources

Where do the ions in the accelerator come from? In two high voltage cages the chambers are located where the ions are generated. Depending on the element and its aggregate state—liquid, solid or gas—different types of ion sources are used. More ...

Taming accelerators in the main control room

The accelerator system at GSI consists of 2,500 individual electrically controllable components such as magnets, vacuum pumps and measuring instruments. It would simply not be possible for the operators at the facility to individually adjust all of these components by hand. That is why all signals are brought together in the main control room. It requires great skill to generate exactly the sort of ion beam needed by the researchers. More ...

HADES detector—Where does the mass come from?

Ions clash into atoms, structures dissolve and reshape, instruments record all evidences. This is what happens inside a detector. Scientists built the HADES detector to search for quark-antiquark clouds in protons. They could give the protons their mass. More ...

Ion sources.
Main control room.
HADES detector.
Photo: G. Otto / GSI Helmholtzzentrum für Schwerionenforschung