Cosmic ray physics with AMS

The AMS-02 experiment is the first large acceptance magnetic spectrometer to perform high statistics studies of cosmic rays in space. It will operate on the International Space Station for more than three years and precisely measure the cosmic ray fluxes of individual elements in the rigidity range from ~1GV to ~1TV. It will test propagation models through the precise measurement of secondary to primary ratios as 3 He/4 He in the range from a few hundreds of MeV to tens of GeV, and B/C up to 1TV