Scientists and Users The direct access for scientists, researchers and the users of our large facilities

A strong commitment for science communication

PSI is engaging in public outreach at a major event in Zürich, the "Scientifica" Science Days September 4 and 5.

First Components of ESTIA arrive at ESS in Lund

The European Spallation Source (ESS) is currently under construction in Lund, Sweden and is set to become the most powerful neutron source in Europe and world-wide. The PSI-ESS project is delivering state-of-the-art contributions to five instruments at ESS, which will be home to a suite of 15 novel instruments. Among the five PSI instruments, the reflectometer ESTIA stands out as it is delivered in its entirety by PSI ...  

How ethane-consuming archaea pick up their favorite dish

Scientists decode the structure of the enzyme responsible for the ethane fixation by – beside others – using the SLS.

Preventing the break-in of the toxoplasmosis parasite

Scientists have identified the structure and functions of RON13, an enzyme of the toxoplasmosis parasite that is essential for the infectious mechanism in humans.

Welcome to the PSI Science Portal. On this site you find information on PSI's different research activities and on the experimental opportunities at PSI's large scale research infrastructures.

PSI User Office

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

Conference Calendar

Conferences related to methods and topics addressed at our user facilities

PSI Publications

Digital repository and bibliography for all research articles and other publications affiliated with the PSI

PSI User Facilities Newsletter

Current News from PSI photon, neutron and muon user facilities


Library for the Research Institutes within the ETH Domain: Eawag, Empa, PSI & WSL.

Research Integrity at PSI

Research Integrity at the research institutes PSI, EMPA, Eawag, WSL

PSI Guest House

The PSI operates a Guest House to offer a local and practical accommodation for its visitors, guests and users on site.