Search for dissertations about: "core ionization"
Showing result 11 - 15 of 49 swedish dissertations containing the words core ionization.
-
11. Observations of young core collapse supernova remnants
Abstract : Studies of young remnants offer an opportunity to test theoretical models of stellar evolution, explosion models and nucleosynthesis, as well as our understanding of the compact objects in the centre of the exploded stars.The first part of the thesis involves observations of the Crab nebula. READ MORE
-
12. Soft X-ray Scattering Dynamics Close to Core Ionization Thresholds in Atoms and Molecules
Abstract : In this Thesis studies of highly excited states in gas-phase atoms and molecules (He, Ne, N2, O2, N2O and CO2) using a variety of synchrotron-radiation based techniques are presented. The three techniques used most frequently are X-ray-emission-threshold-electron coincidence (XETECO), X-ray emission spectroscopy (XES) and X-ray photoelectron spectroscopy (XPS) and they are all given a brief introduction. READ MORE
-
13. Electronic Structure and Core-Hole Dynamics of Ozone : Synchrotron-radiation based studies and ab-initio calculations
Abstract : The electronic structure of the ozone molecule O3 has been studied with spectroscopy techniques and computations. The investigation was focused on O3 in a core-hole state. The electronic configuration and the nuclear dynamics have been found to be highly correlated. READ MORE
-
14. Computational studies of core level XPS satellites in transition metal systems : Department of Quantum Chemistry, Uppsala University
Abstract : Upon core ionization of a free molecule or a molecule adsorbed on a metal surface, higher binding energy satellites are observed, so called "shake-up" satellites, which can be viewed as valence excitations simultaneously to the creation of the core hole. In this thesis, theoretical studies of such core level XPS satellites in transition metal systems are presented, as well as cluster calculations of XES spectra, using the quantum mechanical INDO method. READ MORE
-
15. Quantum mechanical studies of ionization and electron transfer in diatomic systems : O2 and H+ + H-
Abstract : The present thesis is based upon two papers concerning the core-valence double onization of molecular oxygen and mutual neutralization of H+ and H- ions at low collision energies. The former of these processes has been studied for the first time using a magnetic bottle time-of-ight electron coincidence spectrometer in combination with ab initio electronic structure calculations. READ MORE
