Dokumente Fakultät für Physik (inkl. GAUSS) nach Titel
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X-ray Diagnostics of Accretion Plasmas in Selected Soft Polars
(2009-09-10)Accretion processes occur during diverse stages of stellar evolution and on diverse scales, as for example in star formation, in active galactic nuclei, or in close binaries with a compact ... -
X-ray magnetic circular dichroism in iron/rare-earth multilayers and the impact of modifications of the rare earth's electronic structure
(2001-02-22)This work illuminates the possibilities of circular magnetic dichroism in X-ray absorption (XMCD) for the studies of ordered magnetism. The element and electron-shell sensitivity of this ... -
X-Ray Micro- and Nano-Diffraction Imaging on Human Mesenchymal Stem Cells and Differentiated Cells
(2017-06-13)Recent advances in hard x-ray optics, instrumentation and detection have made it possible to probe biological samples by combining diffraction with raster scanning, using step sizes on the order of cellular organelle ... -
X-Ray Near-Field Holography: Beyond Idealized Assumptions of the Probe
(2017-11-08)All images are flawed, no matter how good your lenses, mirrors etc. are. Especially in the hard X-ray regime it is challenging to manufacture high quality optics due to the weak interaction of multi-keV photons with matter. ... -
X-ray waveguide optics: Beyond straight channels
(2017-04-28)Modern x-ray sources and analysis techniques such as lens less imaging combined with phase retrieval algorithms allow for resolving structure sizes in the nanometerrange. For this purpose optics have to be employed, ... -
X-ray waveguides and waveguide-based lensless imaging
(2006-06-06)The scope of the present thesis is X-ray waveguides and applications in waveguide-based lensless X-ray microscopy. The propagation of X-rays in waveguides is analysed analytically for some ... -
Z →ττ Cross Section Measurement and ττ Mass Reconstruction with the ATLAS Detector at the LHC
(2012-11-14)In this dissertation, the Z to tautau decay where one τ decays leptonically and the other one hadronically is presented. The process is studied with data collected from the ATLAS experiment in pp collisions at c-m-s = 7 TeV ... -
Zeeman tomography of magnetic white dwarfs
(2006-10-12)The aim of this work has been to develop a method that allows to derive the distribution of the surface magnetic fields of magnetic white dwarfs from a set of rotation-phase resolved flux ... -
Zeitlich modulierte Statistik der periodisch gestörten turbulenten Kanalströmung
(2002-03-25)The turbulent channel flow is subjected to a temporal change of the boundary conditions, either by periodic variation of a longitudinal wall speed or, alternatively, by periodic variation ... -
Zum Einfluss der elastischen Verzerrungsenergie auf die Frühstadien der Entmischung von Cu2at.%Co
(2005-10-07)In the present work the decomposition in the Cu2at.%Co system was characterized at 703K, 763K und 853K by means of Field Ion Microscopy (FIM), Tomographic Atom Probe (TAP) and Field Ion ... -
Zur Wasserstoff-induzierten Riss- und Blisterbildung in Eisen
(2017-01-27)Hydrogen-induced damage is a serious problem in various applications of metals. In this work, hydrogen-induced cracking in iron was investigated. The samples were loaded with hydrogen electrochemically. The loading results ... -
Zusammenspiel von Ladungs-, Gitter- und magnetischen Ordnungen in hochdotierten LCMO Schichten
(2015-07-27)This work is focused on the preparation and characterization of overdoped La_1-xCa_xMnO_3 films on MgO and as freestanding films. The charge ordering transition is being investigated via means of resistance, magnetization, ...