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Paul Scherrer Institute

The Paul Scherrer Institute, PSI, is the largest research centre for natural and engineering sciences within Switzerland. We perform world-class research in three main subject areas: Matter and Material; Energy and the Environment; and Human Health. By conducting fundamental and applied research, we work on long-term solutions for major challenges facing society, industry and science.

Current news from PSI

15. December 2014

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Shortcut to protein portraits

Media Releases Research Using Synchrotron Light Biology

All living organisms, from bacteria to humans, rely on proteins to perform their vital functions. How these proteins accomplish their tasks depends on their structure. Researchers from the Paul Scherrer Institute have now devised a novel method to determine the crystal structure of proteins using X-ray light, which could also hasten the development of new drugs in future. The study will be published in the journal Nature Methods on 15 December.

12. December 2014


Biomasse als Stütze der Energiewende

Energy and Environment

Mit 80 Teilnehmerinnen und Teilnehmern fand am 2. Dezember am Paul Scherrer Institut PSI die erste Jahreskonferenz des Kompetenzzemtrums des Bundes für Bioenergie (SCCER BIOSWEET) statt. Das im Rahmen des Aktionsplans Energieforschung Schweiz gegründete Kompetenzzentrum definierte in der Tagung die Ziele, Strategien und Positionierung der Bioenergie-Forschung vor dem Hintergrund der neuen schweizerischen Energiepolitik.
This news release is only available in German.

27. November 2014


New method for iodine retention in the nuclear power plant venting filters faces crucial tests

Energy and Environment Nuclear Power Plant Safety

These days, the Federal Office of Public Health distributes iodine tablets to the population living close to the Swiss nuclear power plants (NPP). The dispensing of iodine tablets within a radius of, now, fifty kilometres around NPP sites is aimed at protecting the residents from contamination with carcinogenic, radioactive iodine in the event of a severe nuclear accident.To make sure that as little radioactive iodine as possible gets into the environment as a result of a nuclear accident, researchers from the Paul Scherrer Institute PSI have for many years been developing a method that can be used in containment venting filters.

20. November 2014


SwissFEL ready for assembly

SwissFEL SwissFEL Technology

Researchers from PSI have spent the last four years developing key technologies for the X-ray laser SwissFEL and subjecting them to the acid test in the injector test facility. Now that the development programme has drawn to a close, the installation of the new large-scale research facility is due to get underway in early 2015.

19. November 2014


Ist dies der richtige Zeitpunkt für ein waghalsiges Experiment?


PSI-Direktor Joël Mesot hat sich heute in der Aargauer Zeitung mit einem Gastkommentar zur Debatte um die Ecopop-Initiative geäussert. Lesen Sie hier seinen vollständigen Text.
This news release is only available in German.

More news can be found in our popular science blog "fascinating research".

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Discover and investigate. Explore the world of the Paul Scherrer Institute. Gain an insight into Switzerland's largest research institute.


Direct access for scientists, researchers and the users of our large-scale facilities. In English only.


With its expertise, PSI can support your business in solving technological problems. Within the SwissFEL project, we provide industrial partners with interesting opportunities for collaboration.
Photo on the left: Aerial view of the PSI premises, May 2014.

Proton Therapy

Treatment for specific cancers at PSI

User Office

The PSI User Office is a central PSI installation to serve the users from all the four user laboratories.


The new large-scale facility at the PSI: overview, current issues, construction progress

psi forum

The visitors' centre of the Paul Scherrer Institute

The iLab School Laboratory

Experience Science - Explore Research

Energie Spiegel

The newsletter regularly published by PSI on the subject of energy systems and their analysis.

Fascinating research

Learn more about PSI's research cosmos