Search for dissertations about: "Mutual neutralization"

Showing result 1 - 5 of 9 swedish dissertations containing the words Mutual neutralization.

  2. 1. Final-State-Resolved Mutual Neutralization of Li+ and H-

    Author : Alice F. Schmidt-May; Henning T. Schmidt; Fivos Perakis; Stockholms universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; DESIREE; ion; mutual neutralization; collision; lithium; hydrogen; Physics; fysik;

    Abstract : We studied the mutual neutralization of Li+ and H- at effective collision energies of a few hundred meV, which corresponds to temperatures of around 2000 K, in the double ion storage ring DESIREE.We present a new approach to match beam velocities and a new general analysis method for non-fragmenting mutual neutralization at DESIREE. READ MORE

  4. 2. Experiments on mutual neutralization using storage rings with merged ion beams

    Author : Gustav Eklund; Henning T Schmidt; Henrik Cederquist; Ansgar Simonsson; Daniel W. Savin; Stockholms universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; mutual neutralization; storage rings; merged beams; fysik; Physics;

    Abstract : This thesis presents work on merged-beams experiments using the DESIREE facility, which consists of two electrostatic ion-storage rings operated at cryogenic temperatures of about 13 K. The two storage rings have a common straight section, where oppositely charged ions can interact at sub-eV collision energies. READ MORE

  5. 3. Mutual Neutralization in collisionswith oppositely charged fullerene(C60) ions

    Author : Raka Paul; Henning Zettergren; Foivos Perakis; Stockholms universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Physics; fysik;

    Abstract : In this thesis, results from Mutual Neutralization experiment carried out atthe DESIREE facility, involving merged interacting ion beams, of oppositelycharged C60 ions are presented. This reaction may be of importance for explain-ing reliable estimates of the ionization balance in astrophysical environments,which defines the chemistry in molecular gas clouds. READ MORE

  6. 4. Reaction dynamics on highly excited states

    Author : Johanna Brinne Roos; Åsa Larson; Ioan F. Schneider; Stockholms universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; ab initio calculations; dissociative recombination; resonant ion-pair formation; mutual neutralization; molecular electronic states; molecule-electron collisions; quantum chemistry; molecular dynamics; Chemical physics; Kemisk fysik; Molecular physics; Molekylfysik; kemisk fysik; Chemical Physics;

    Abstract : In this thesis I have performed theoretical studies on the reaction dynamics in few-atom molecules. In particular, I have looked at reaction processes in which highly excited resonant states are involved. READ MORE

  7. 5. Photo-induced molecular processes and charge recombination reactions driven by non-adiabatic couplings

    Author : Michael Stenrup; Åsa Larson; Horst Köppel; Stockholms universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; Non-adiabatic processes; Photophysics; Photochemistry; Radiationless deactivation; Conical intersections; Five-membered aromatic heterocyclic compounds; Mutual neutralization; Dissociative recombination; kemisk fysik; Chemical Physics;

    Abstract : This thesis is based on a number of theoretical studies of molecular processes in which non-adiabatic effects play a crucial role. The main part is devoted to the photophysics and photochemistry of five-membered aromatic heterocyclic compounds, with particular focus on furan and thiophene. READ MORE