Imad El Haddad is head of the Atmospheric Molecular Processes group in the Laboratory for Atmospheric Chemistry at PSI’s Center for Energy and Environmental Sciences. For his new study of the formation of organic aerosols, he led a team of more than 70 researchers from Europe and North America.
Imad El Haddad is head of the Atmospheric Molecular Processes group in the Laboratory for Atmospheric Chemistry at PSI’s Center for Energy and Environmental Sciences. For his new study of the formation of organic aerosols, he led a team of more than 70 researchers from Europe and North America. © Paul Scherrer Insitut/Mahir Dzambegovic
«Theorie und Simulation passen besser zu mir als experimentelle Forschung. Sie sind sauberer.» Dominik Sidler, Theoretischer Physiker am PSI, sucht mit seinen Simulationen die Einfachheit in der Komplexität.
«Theorie und Simulation passen besser zu mir als experimentelle Forschung. Sie sind sauberer.» Dominik Sidler, Theoretischer Physiker am PSI, sucht mit seinen Simulationen die Einfachheit in der Komplexität. © Paul Scherrer Intitut PSI/Mahir Dzambegovic

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Welcome to PSI, the largest research institute for natural and engineering sciences in Switzerland.

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Employees at PSI are working on the world of tomorrow.

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PSI operates five particle accelerator-based large research facilities.

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In a total of 64 centres, labs and groups, we conduct research into pressing societal issues.

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Every year, around 3000 researchers from all over the world carry out experiments at our facilities.