Synchrotron radiation spectroscopy of molecular dynamics beyond the valence shell [Elektronisk resurs]

• This thesis presents experimental results on molecular spectroscopy of gas phase molecules using synchrotron radiation. It deals mainly with dynamical processes following resonant excitation of electrons from core and inner-valence shells of the following systems H 2 O, H 2 , SF 6 and CD 4 . In order to reach these deep electrons and excite them photons in the energy range from 25 to 550 eV were used, depending on the particular system. Two experimental techniques are used. Photon induced fluorescence spectroscopy is used to study the fluorescence emission of fragments after the decay of resonant coreexcited states for the water molecule, and after doubly excited states and resonant excitations of inner-shell electrons for H 2 and SF 6 respectively. Only the emission in the visible and near infrared range (300-900nm) and the Lyman-α transitions are measured. Energy resolved electron-ion coincidence is used for the study of the fragmentation of CD 4 and SF 6 after selective ionisation of one of the outer-valence orbitals. In the case of CD 4 the fragmentation is compared for the cases in which the ionisation is done directly, or through participator Auger decay of different resonantly core-excited states. 

Ämnesord

Natural Sciences  (hsv)

Physical Sciences  (hsv)

Atom and Molecular Physics and Optics  (hsv)

Naturvetenskap  (hsv)

Fysik  (hsv)

Atom- och molekylfysik och optik  (hsv)

NATURAL SCIENCES  (svep)

Physics  (svep)

Atomic and molecular physics  (svep)

Molecular physics  (svep)

NATURVETENSKAP  (svep)

Fysik  (svep)

Atom- och molekylfysik  (svep)

Molekylfysik  (svep)

Genre

government publication  (marcgt)