Welcome to PSI, the largest research institute for natural and engineering sciences in Switzerland.
Recent highlights from our research
SLS 2.0: How to start up a particle accelerator
The electrons are back: after its upgrade, the Swiss Light Source SLS is starting up again, step by step.
The Cables of the SLS
Building services, magnets, IT – many different parties are involved in the SLS upgrade. What connects them all is several hundred kilometres of cables.
IMPACT: Upgrade at PSI research facility approved
Financing for renovations to PSI’s proton accelerator facility has been approved by the Swiss Parliament.
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Current upgrade projects and research initiatives
Together with industry to innovation
A superlative milestone
PSI spin-off Araris Biotech AG achieves valuation at unicorn-level!
ESA comes to Switzerland
The signing of a contract between the European Space Agency ESA and PSI marks the start of the European Space Deep-Tech Innovation Centre ESDI.
How catalysts remove dangerous nitrogen oxides
In industrial catalysis, iron is not equal to iron.
The people at PSI
Creating circuit diagrams of the brain
Using brain circuit diagrams to understand Alzheimer's.
With pad, pencil, and algorithms
Physicist Dominik Sidler is developing fundamental theories for previously inexplicable phenomena.
Soldering on a big stage
Whoever makes it onto the podium here is one of the world's best professional talents: PSI electronics engineer Melvin Deubelbeiss won the silver medal at WorldSkills 2024.