Search for dissertations about: "He Atom Scattering"

Found 5 swedish dissertations containing the words He Atom Scattering.

  2. 1. Time-resolved laser spectroscopic studies of atoms, ions and Molecules

    Author : Zhongshan Li; Fysiska institutionen; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Atomic and molecular physics; Atom- och molekylärfysik; Fysicumarkivet A:2000:Li;

    Abstract : Time-resolved laser spectroscopy has been performed to study the radiative properties of various microscopic systems. Using Laser-Induced Fluorescence (LIF) techniques, natural radiative lifetimes have been studied not only in neutral B, S, Ge, Ce, Pb, and in singly ionized V, Fe, Zr, Mo, La, Ce, Eu, Gd and Yb, but also in doubly ionized La, Ce, Pr, Eu, Er, Gd, Tm, Lu, and W. READ MORE

  4. 2. Collision- and photon-induced dynamics of complex molecular ions in the gas phase

    Author : Linda Giacomozzi; Henning Zettergren; Jason Greenwood; Stockholms universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; PAHs; Porphyrins; Adenine; Flavins; Biomolecules; Collisions; Experiments; Reactions; Non-Statistical Fragmentation; Molecular Dynamics; Photon-Induced Fragmentation; Luminescence; Photoisomerization; Proton Transfer; fysik; Physics;

    Abstract : In this thesis, I report experiments probing collision- and photon-induced molecular dynamics in the gas phase. Excited molecules formed in such interactions may relax by emitting electrons or photons, isomerization or fragmentation. READ MORE

  5. 3. Theoretical studies of chemical dynamics on excited states, driven by non-adiabatic effects : Charge recombination reactions

    Author : Sifiso Musa Nkambule; Åsa Larson; Adam Kirrander; Stockholms universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Mutual neutralization; Dissociative recombination; electronic structure; non-adiabatic; teoretisk fysik; Theoretical Physics;

    Abstract : This thesis is based on theoretical studies of molecular collisions occurring at relatively low to intermediate collision energies. The collisions are called dissociative recombination (DR) and mutual neutralization (MN). READ MORE

  6. 4. Atom-Diatom Scattering. From Potential Energy Surfaces to Rate Constants

    Author : Erik Abrahamsson; Göteborgs universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES;

    Abstract : This thesis is about the theoretical study of collisions between atoms and diatomic molecules. It might seem like a trivial problem, but in reality it is a highly complex process. Despite, or because of, their apparent simplicity, these processes are of importance for a broad area of science. READ MORE

  7. 5. Double Excitations in Helium Atoms and Lithium Compounds

    Author : Marcus Agåker; Jan-Erik Rubensson; Leif Karlsson; David Ederer; Uppsala universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Atomic and molecular physics; Soft X-ray emission; resonant inelastic X-ray scattering; double excitations; lithium halide; helium; Atom- och molekylfysik;

    Abstract : This thesis addresses the investigation of doubly excited 2l´nl states in helium atoms and double core excitations in solid lithium compounds.Measurements on He are made in field free environments and under the influence of electric and magnetic fields, using synchrotron based inelastic photon scattering. READ MORE