Speaker
Description
The Alpha Magnetic Spectrometer (AMS-02) has been operating continuously aboard the International Space Station (ISS) since May 2011. The Ring Imaging Cherenkov (RICH) detector provides precision measurements of particle velocity and charge, and plays an important role in the cosmic-ray isotope analysis. After more than 14 years of operation in space, its radiators and detection units are working nominally. The abundant cosmic-ray data allow for the high-precision on-orbit calibration of the radiators' refractive index and PMT readouts. A novel Cherenkov ring reconstruction method is introduced, which improves the performance of velocity and charge resolution. These instrumental achievements have enabled the precise measurement of cosmic-ray isotopes of light nuclei.
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