以太空高能粒子偵測器探索宇宙(4/4)

AMS is a particle physics experiment on the International Space Station. The AMS detector measures the composition and fluxes of charged particles in the cosmic rays. The goal is to study fundamental physics problems like the dark matter composition and search for anti-nuclei in the universe. In addition, the measurement of fluxes of ions will provide important input for the understanding of the production and propagation of the cosmic rays. The NCU AMS team is one of the initial collaborators of AMS. During the construction of AMS, we joined the effort of Academia Sinica and NCSIST teams in design, production, and testing of AMS electronics system. We started physics analysis and detector calibration after the launch of AMS detector to the ISS in May 2011. During the past four years, we have carried out measurements of the proton and helium fluxes.