Positron/Proton Separation Using the AMS-02 TRD

AMS-02 is a cosmic ray experiment that will be placed on the International Space Station. One of the goals of this experiment is to search for WIMP Dark Matter, specifically from anomalous features in the positron spectrum. In order to identify positrons at high energy from the large background of protons, a Transition Radiation Detector (TRD) will be used. Here we will discuss the principles of transition radiation, detail the TRD that will sit on AMS-02, and present progress on studies of positron/proton separation using the AMS-02 Monte Carlo.