Sökning: "Neutralization"

Visar resultat 6 - 10 av 128 avhandlingar innehållade ordet Neutralization.

  1. 6. Experiments on mutual neutralization using storage rings with merged ion beams

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

    Sammanfattning : 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. LÄS MER

  3. 7. The role of virus neutralization in primate lentivirus pathogenesis

    Författare :Yi jun Zhang; Karolinska Institutet; Karolinska Institutet; []
    Nyckelord :;

    Sammanfattning : The antiviral neutralizing activity of sera from primate lentivirus-infected human and monkey hosts was studied. In addition, factors affecting the neutralization reaction were investigated. In simian immunodeficiency virus (SIVsm)-infected macaque monkeys, SIVsm variants able to escape neutralization emerged regularly. LÄS MER

  4. 8. Models of Auger Neutralization and Tunneling at Metal Surfaces

    Författare :Tony Fondén; Chalmers tekniska högskola; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES;

    Sammanfattning : This thesis consists of a theoretical study of electron transfer at metal surfaces. It considers two types of electron transfer (electron tunneling and Auger neutralization) that both can be used as a spectroscopy to investigate the surface electronic structure. LÄS MER

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

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

    Sammanfattning : 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. LÄS MER

  7. 10. Reaction dynamics on highly excited states

    Författare :Johanna Brinne Roos; Åsa Larson; Ioan F. Schneider; Stockholms universitet; []
    Nyckelord :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;

    Sammanfattning : 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. LÄS MER