MOLECULAR FRAGMENTATION PATTERNS OF CARBON-DIOXIDE AT VERY HIGH INTERNAL ENERGIES

Ion-ion coincidence measurements following K-shell absorption in the c arbon dioxide molecule were performed by applying time-of-flight mass spectrometry in conjunction with monochromatic synchrotron radiation a nd electron impact. Identification of particularly sensitive electroni c transitions and the consecutive molecular fragmentation in real time was performed. Analysis of coincidence recordings from decomposition of carbon dioxide reveals one distinct pathway in which three cations are formed following excitation of oxygen Is electrons.