%0 Thesis %A Millinger, Mark %T The discrimination between cosmic positrons and protons with the Transition Radiation Detector of the AMS experiment on the International Space Station %C Aachen %I Publikationsserver der RWTH Aachen University %M RWTH-CONV-143395 %P XIII, 186 S. : Ill., graph. Darst. %D 2012 %Z Zsfassung in dt. und engl. Sprache %Z Aachen, Techn. Hochsch., Diss., 2012 %X The aim of this thesis is the development and validation of a particle identification method with the Transition Radiation Detector (TRD) of the Alpha Magnetic Spectrometer AMS-02 to allow for the determination of the positron fraction in the cosmic lepton flux. Independent measurements indicate that a significant amount of about 23 %K Elementarteilchenphysik (SWD) %K Dunkle Materie (SWD) %K Antimaterie (SWD) %K Kosmische Strahlung (SWD) %K AMS <Teilchendetektor> (SWD) %K ISS <Raumfahrt> (SWD) %F PUB:(DE-HGF)11 %9 Dissertation / PhD Thesis %U https://publications.rwth-aachen.de/record/197540