Paul Schell Institute (PSI; Paul Scherrer Institut) a world-renowned research institute in Switzerland, which is committed to the research in the fields of natural science, technology and engineer science. It is a member of the Swiss alliance of integrated polytechnic schools. It was merged by the former Swiss atomic nuclear research institute and the Swiss Federal Reactor Research Institute in 1988. Its research contents include medicine, physics, material science, life science, nuclear energy and non nuclear energy Energy and other fields.
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