The Paul Scherrer Institute PSI is an advanced research institute for natural and engineering sciences based in Switzerland, conducting cutting-edge research in fields such as matter and materials, energy and environment and human health.
Every year, a large number of scientists from Switzerland and around the world come to PSI to use its unique facilities to carry out experiments that are not possible anywhere else. PSI is also committed to the training of future generations, and for this reason about one quarter of PSI staff are apprentices, post-graduates or post-docs.