Cosmic-Ray Astrophysics with AMS-02

Details Cosmic-Ray Astrophysics with AMS-02 Cosmic-Ray Astrophysics with AMS-02

Jul 2003

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2003icrc....4.2149c&link_type=abstract

Proceedings of the 28th International Cosmic Ray Conference. July 31-August 7, 2003. Trukuba, Japan. Under the auspices of the I

Physics

Scientific paper

Precise knowledge of the hadronic component of cosmic rays is needed to describe the cosmic ray production, acceleration and propagation mechanisms in our galaxy. Present measurements suffer from limitations coming from short exposure time, intrinsic instrumental limitations and restricted energy range. The AMS-02 experiment is the first large acceptance magnetic spectrometer to perform high statistics studies of cosmic rays in space. The detector will operate on the International Space Station for more than 3 years. AMS-02 will precisely measure the cosmic ray fluxes of individual elements up to Z˜26 in the rigidity range from ˜1GV to ˜1TV. AMS-02 will allow to test propagation models through the precise measurements of secondary-to-primary ratios as D/p, 3 He/4 He in the energy range from few hundreds MeV to tens of GeV, and B/C, sub-Fe/Fe up to ˜1TV. In particular, the accurate measurement of 10 Be/9 Be in a wide energy range will allow to understand the age of the cosmic-ray confinement in the galaxy and will constraint the size of the galactic halo.

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