Welcome to the Laboratory for Reactor Physics and Thermal-Hydraulics Multi-Physics Multi-Scale Simulations for Reactor Systems, Nuclear Fuel and Radiation Safety Simulations and Experiments for Severe Accidents and Source Term Mitigation Experiments and Instrumentation for Thermal-Hydraulic Integral- and Separate Effect Tests Experiments and Instrumentation for Reactor Physics and Spent Fuel Characterization Sidebar General Contact Research DivisionNuclear Energy and Safety (NES)Laboratory for Reactor Physics and Thermal-Hydraulics (LRT) Paul Scherrer Institute 5232 Villigen PSI Switzerland Dr. Hakim Ferroukhi Head of the Laboratory Office: OHSA/C10 +41 (0)56 310 4062hakim.ferroukhi@psi.chPetra Kull Administration and Assistance Office: OHSA/C18 + 41 (0)56 310 2685petra.kull@psi.ch NES Open positions Current job openings in the Research Division for Nuclear Energy and Safety Directions to PSI How to get to the Paul Scherrer Institute (description and map)