Synchrotron radiation induced fluorescence spectroscopy of SF6

• The fluorescence of gaseous SF6 was investigated after excitation with 25-80eV synchrotron radiation photons. The total UV-Vis-near IR fluorescence yield was recorded and interpreted in terms of inner valence excitations/ionizations and double excitations in SF6. Dispersed fluorescence measurements in the 400-1000 nm spectral range reveal excited S, S+, F and F+ fragments as solely responsible for the emission. The fluorescence intensity of some of the observed atomic transitions was monitored as a function of the excitation energy. Single, double and triple excitations as well as direct ionizations and shake-ups are proposed as the triggering processes responsible for the creation of the emitting fragments.

Ämnesord

NATURVETENSKAP  -- Fysik -- Atom- och molekylfysik och optik (hsv//swe)

NATURAL SCIENCES  -- Physical Sciences -- Atom and Molecular Physics and Optics (hsv//eng)

Nyckelord

threshold photoelectron-spectroscopy

electron-impact

sulfur-hexafluoride

vacuum-ultraviolet

cross-sections

inner-valence

energy

shell

photoabsorption

fragmentation

Molecular physics

Molekylfysik

Publikations- och innehållstyp

ref (ämneskategori)

art (ämneskategori)