Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 8 of 8 for “"kosmische Strahlung"”.
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Belastung des Flugpersonals durch kosmische Strahlung
… FlugingenieurInnen und Kabinenpersonal durch kosmische Strahlung im Rahmen einer berufsepidemiologischen Kohortenstudie über das fliegende Personal der Deutschen Lufthansa AG. Die Kohorte umfasst alle Angestellten im Flugbetrieb, die im Zeitraum zwischen 1960 und 1997 mindestens ein halbes …
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Ein Infrarot-Laser-Positions-Kontroll-System für das AMS-Experiment
The Anti Matter Spectrometer (AMS) is designed for the space based search for cosmic antimatter and dark matter. The AMS detector will be installed on the International Space Station (ISS) in 2003. In June 1998 a precursor version of the final AMS-02 detector was flown on board of the space shuttle …
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Particle-in-cell simulations of perpendicular supernova shock fronts
The origin of cosmic rays was the subject of several studies for over a century. The investigations done within this dissertation are one small step to shed some more light on this mystery. Locating the sources of cosmic rays is not trivial due to the interstellar magnetic field. However, the …
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Cosmic-ray neutron sensing and its applications to soil and land surface hydrology
Water scarcity, adaption on climate change, and risk assessment of droughts and floods are critical topics for science and society these days. Monitoring and modeling of the hydrological cycle are a prerequisite to understand and predict the consequences for weather and agriculture. As soil water …
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Towards a precise measurement of the cosmic-ray positron fraction
This thesis deals with detector concepts aiming at a precise measurement of the cosmic-ray positron fraction extending to an as yet unreached range of energy. The indirect search for dark matter is the main motivation for this endeavour. The evolution and large-scale structure of the Universe is …
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Signatures of SUSY dark matter at the LHC and in the spectra of cosmic rays
… experiment, namely through the detection of bremsstrahlung conversion in a silicon microstrip detector. In contrast to earlier single-track analyses, this approach involves the selection and reconstruction of multi-track events. Subsequent to an introduction to cosmic ray physics and a description …
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Space qualification of the transition radiation detector of the AMS-02 experiment and indirect search for dark matter
We know that the universe consists of 22\% dark matter. The dark matter particle has to be stable, non-relativistic and only weakly interacting. But we don't know what the dark matter is made of and how it is distributed within our Galaxy. Supersymmetric models predict the existence of the lightest …
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Search for cosmic-ray antiparticles with bolloon-borne and space-borne experiments
This thesis discusses two different approaches for the measurement of cosmic-ray antiparticles in the GeV to TeV energy range. The first part studies the prospects of antiparticle flux measurements with the proposed PEBS detector. The project allots long duration balloon flights at one of Earth's …