The cosmic ray group of the Physics Departement at the University of Bern, has a long-standing expertise in the analysis of solar cosmic ray events and in the simulation of cosmic ray transport in near-Earth space. It is also recognized for the development and application of software packages based on Geant4 to cosmic ray transport in planetary magnetospheres and atmospheres and to evaluate the response of cosmic ray detectors. 

Recent applications include the computations of the ionisation and the radioactive dosage in the Earth's atmosphere caused by galactic and solar cosmic rays.

The group operates three neutron monitors in Switzerland. Two neutron monitors of type IGY and NM64 are located at high altitude at Jungfraujoch, and one special neutron monitor is in operation in Bern.