Sökning: "Olle Björneholm"
Visar resultat 1 - 5 av 23 avhandlingar innehållade orden Olle Björneholm.
1. Adsorbate core hole excitation and decay dynamics
Sammanfattning : .... LÄS MER
2. X-ray Absorption and Fragmentationas Initial Steps of Radiation Damage in Free Organic Molecules and Nanoparticles
Sammanfattning : Understanding the molecular radiation damage is crucial in radiobiology, molecular physics, and atmospheric science. In this thesis, the initial steps of radiation damage of anhydrous gas-phase molecules and hydrated nanoparticles were studied using synchrotron radiation based electron-ion coincidence spectroscopy and X-ray absorption spectroscopy under vacuum conditions. LÄS MER
3. Ionization Influence on the Dynamics of Simple Organic Molecules
Sammanfattning : This licentiate thesis is devoted to the investigation of how bonding in simple organic molecules are affected by X-ray beam irradiation. The investigation targets molecules with three carbons as their main-chain structure. The stability of the bonds under ionization are simulated using the SIESTA package. LÄS MER
4. Free Metal Clusters Studied by Photoelectron Spectroscopy
Sammanfattning : Clusters are aggregates of a finite number of atoms or molecules. In the present work, free clusters out of metallic parent materials have been created and studied by synchrotron radiation-based photoelectron spectroscopy. The clusters have been formed and studied in a beam and the electronic structure of the clusters has been investigated. LÄS MER
5. Free Neutral Clusters and Liquids Studied by Electron Spectroscopy and Lineshape Modeling
Sammanfattning : The electronic and geometrical structure of free neutral clusters and liquids have been studied using synchrotron-radiation based photoelectron and Auger electron spectroscopy in combination with lineshape modeling. A novel experimental setup has been developed for studies of liquids, based on the liquid microjet technique. LÄS MER