Ph.D. Theses

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2018-01-10
14:12
[GSI-2018-00018] Dissertation / PhD Thesis

Aufbau und Charakterisierung einer Quellespinpolarisierter Elektronen für zukünftigeStoßexperimente mit chiralen Molekülen
Gießen : Justus-Liebig-Universität Gießen, 120 S. (2017) = Dissertation, Justus-Liebig-Universität Gießen , 2017
Diese Arbeit beschreibt ein neu am GSI Helmholtzzentrum für Schwerionenforschung aufgebautes Experiment zur Erzeugung spinpolarisierter Elektronenstrahlen für zukünftige Experimente an Speicherringen sowie für unabhängige Experimente im Labormaßstab. Motiviert durch das Ziel der atom- und molekülphysikalischen Erforschung chiraler Systeme deckte die Bündelung der Expertise hessischer Universitäten im LOEWE Schwerpunkt ELCH den Bedarf einer Quellespinpolarisierter Elektronen im Energiebereich von einigen hundert Elektronenvolt bis zu einigen Kiloelektronenvolt auf. [...]

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2018-01-08
15:46
[GSI-2018-00009] Dissertation / PhD Thesis

Einfluss ionisierender Strahlung auf die elektrophysiologischen Eigenschaften sich entwickelnder neuronaler Netzwerke
103 p. (2017) = Dissertation, Technische Universität Darmstadt , 2017

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2018-01-08
15:18
[GSI-2018-00008] Dissertation / PhD Thesis

Microvascular Damage as Initial Event of Scar Formation after Carbon Ion Irradiation of Cardiac Substructures
148 p. (2017) = Dissertation, Technische Universität Darmstadt , 2017

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2017-11-30
11:58
[GSI-2017-01796] Dissertation / PhD Thesis

Monitoring physiological changes in cells after ionizing radiation using fluorescence lifetime imaging by time resolved single photon counting
92 p. (2017) = Dissertation, Technische Universität Darmstadt , 2017

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2017-11-17
10:17
[GSI-2017-01754] Dissertation / PhD Thesis

Signatures of the quantum vacuum in inhomogeneous electromagnetic fields
Jena, 167 pp. (2017) = Dissertation, Friedrich-Schiller-Universität Jena, 2017
Abstract: According to the theory of quantum electrodynamics, zero-point fluctuations of the vacuum manifest themselves through the ubiquitous creation and annihilation of virtual electron-positron pairs. These give rise to classically forbidden nonlinear interactions between strong electromagnetic fields in vacuum, first described by Heisenberg and Euler in 1936. [...]

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2017-11-17
10:06
[GSI-2017-01752] Dissertation / PhD Thesis

Hochauflösende Röntgenpolarimetrie
Jena, 112 S. (2017) = Dissertation, Friedrich-Schiller-Universität Jena, 2017
Abstract: Polarimetry has a long history with versatile applications in chemistry and pharmacy in the visible spectral range. In the field of X-ray radiation, the interest in high-resolution polarimeters has only increased in recent years. [...]

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2017-11-17
10:01
[GSI-2017-01751] Dissertation / PhD Thesis

Angular Correlation and Polarization of X-rays Emitted from Highly Charged Ions
Jena, 120 pp. (2017) = Dissertation, Friedrich-Schiller-Universität Jena, 2017
Abstract: In collisions of highly charged ions with electrons or light, ions are usually excited to one of their excited states and, then, may stabilize radiatively under the emission of fluorescence photons. Detailed studies on the emitted photons can help understand the structure and collision dynamics of the ions. [...]

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2017-11-17
09:56
[GSI-2017-01750] Dissertation / PhD Thesis

Laserspektroskopie an hochgeladenen Bismutionen zum Test der Quantenelektrodynamik
Jena, 128 pp. (2017) = Dissertation, Friedrich-Schiller-Universität Jena, 2017
Abstract: Ths dissertation concerns a test of the theory of quantum electrodynamics in strong fields by laser spectroscopy of the ground state hyperfine splitting of highly charged bismuth ions. The experiment was performed and analyzed at the storage ring ESR at Helmholtzzentrum für Schwerionenforschung in Darmstadt. [...]

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2017-11-17
09:41
[GSI-2017-01749] Dissertation / PhD Thesis

Probing Strong-field Photoionization of Atoms and Diatomic Molecules with Short-wave Infrared Radiation
Jena, 143 S. (2017) = Dissertation, Friedrich-Schiller Universität Jena, 2017
Abstract: The availability of pico- and femtosecond laser pulses, which can be focused to peak intensities in the range between 10^12 and 10^16 W/cm2, allows the investigation of the interaction between atoms or diatomic molecules with strong laser fields. It has revealed fascinating phenomena such as above-threshold ionization (ATI), high energy above-threshold ionization (HATI), non-sequential ionization (NSDI), high-harmonic generation (HHG) and, most recently, frustrated tunnel ionization (FTI). [...]

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2017-11-13
10:40
[GSI-2017-01725] Dissertation / PhD Thesis

Characterization of individual Bi$_2$Te$_3$ nanowires electrodeposited in etched ion-track membranes for nano-ARPES and electrical transport studies.
Darmstadt : Technische Universität Darmstadt, 155 p (2017) = Technische Universität Darmstadt, Dissertation, 2017

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