PSI develops, builds and operates complex large research facilities. PSI has the world's most powerful muon source, a unique proton and neutron source, an synchrotron of international importance and one of only five X-ray free-electron lasers with hard X-rays in the world. Scientists from all over the world use PSI's large research facilities for their scientific investigations. They are also available to Swiss research and industry for their experiments.
For researchers
World record attosecond measurement at SwissFEL
Scientists at SwissFEL can measure X-ray pulses with attosecond time resolution.
Together for Science with Neutrons, Muons and X-rays
Strategic partnership between research facilities in UK and Switzerland will create new capabilities to address global challenges using neutrons, muons and X-rays.
Neat, precise and brighter than ever
Researchers at SwissFEL succeed in improving the temporal coherence of XFEL pulses
For researchers
A faster route to green hydrogen
The pH value determines how easily hydrogen can be produced from water when cobalt is used as a catalyst. PSI researchers have now found out why.
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.
Prestigious funding for research at PSI
Concrete, chemical catalysis and the search for new physics – three PSI researchers have each received a grant from the Swiss National Science Foundation for these areas of research.
For researchers
Latest News
A tiny golden object from Roman times
PSI’s David Mannes has used neutrons to unravel the mystery of a fascinating archaeological artefact.
Prestigious funding for research at PSI
Concrete, chemical catalysis and the search for new physics – three PSI researchers have each received a grant from the Swiss National Science Foundation for these areas of research.
Together for Science with Neutrons, Muons and X-rays
Strategic partnership between research facilities in UK and Switzerland will create new capabilities to address global challenges using neutrons, muons and X-rays.
For researchers
Latest News
Together for Science with Neutrons, Muons and X-rays
Strategic partnership between research facilities in UK and Switzerland will create new capabilities to address global challenges using neutrons, muons and X-rays.
Kagome breaks the rules at record breaking temperatures
Discovery of quantum phenomenon at accessible temperatures could be useful for quantum technologies.
Magnetism in thin layers: One electron makes the difference
An important step towards novel computer memory
For researchers
„IMPACT is very important in terms of international competition“
Daniela Kiselev talks about the upgrade planned at PSI's proton accelerator facility.
Hunting for the radius of a proton
0.000 000 000 000 840 87 (39) metres – scientists working at PSI have come up with this astonishing figure for the radius of a proton.
What can’t be bought, we develop ourselves
Many components for the experiments the researchers at PSI just develop themselves.
