Yi Jia
MIT
Time variations of comic ray particles measured by AMS
The Alpha Magnetic Spectrometer (AMS) is a multi-purpose high energy particle detector which was installed on the International Space Station (ISS) on May 19, 2011 to conduct a unique long-term mission of fundamental physics research in space. The detailed measurement of the daily electron, positron, proton, and helium fluxes based on ten-year data with the AMS will be presented. All the fluxes exhibit variations on different time scales. These results provide unique input to the understanding of cosmic rays in the heliosphere.