PSI User Laboratories

Each year, approximately 2000 scientists from all over the world visit PSI to perform their experiments, in fields such as condensed matter or fundamental physics, chemistry, biology or materials science. PSI is one of very few places in the world offering the three major probes for condensed matter research (synchrotron X-rays, neutrons and muons) on one campus.

PSI User Office

The PSI User Office is a central PSI agency, whose aim is to serve the users of all the four user laboratories. One of its major tasks is to act as general contact point for both external and internal users of the PSI facilities. If you have any questions before, during or after your stay at PSI, please do not hesitate to contact us.

The major tool used to organize user operation at PSI is called the Digital User Office DUO. This is a Web application that allows you to submit proposals, experimental reports and publications, to request PSI badges or dosimeters, to register for conferences, etc.

Experienced users

Those of you who have already performed experiments at PSI might wish to move directly to the DUO login or to the websites of the user facilities and the respective instruments or beamlines.

New users

New users will find helpful information about the procedures for beamtime application and the suite of available instruments on separate Web Pages.

Further information User Labs:


PSI User Office
Paul Scherrer Institut
Room WLGA/018
CH-5232 Villigen PSI

Phone: +41 (56) 310 46 66
Fax: +41 (56) 310 32 94

Office hours: Monday through Friday from 8:00 to 17:00

User Office

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

Digital User Office (DUO)

Get direct access to PSI Digital User Office:
DUO Login

PSI User Facilities Newsletter

Current News from PSI photon, neutron and muon user facilities

PSI Library

Service for internal and guest scientists on PSI campus

Guest House

Accomodation for guest scientists at reasonable rates