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Dissociative excitation of metastable fragments by electron impact on carbonyl sulphide, carbon dioxide and carbon monoxide

S M Barnett, N J Mason and W R Newell

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Metastable fragments produced in the electron impact dissociation of carbonyl sulphide, carbon dioxide and carbon monoxide have been studied by the technique of time-of-flight spectroscopy. Three metastable fragments were identified in the time-of-flight spectra for dissociation of carbonyl sulphide and have been classified as O(5S), S(5S) and CO (a 3 Pi ). From the time-of-flight spectra, the kinetic energy distributions of the fragments have been deduced. The production of CO(a 3 Pi ) from carbonyl sulphide has been compared with its production from carbon dioxide; the production of O(5S) from dissociation of carbonyl sulphide, carbon dioxide and carbon monoxide is also compared.


PACS

34.80.Ht Dissociation and dissociative attachment

34.80.Gs Molecular excitation and ionization

07.57.-c Infrared, submillimeter wave, microwave and radiowave instruments and equipment

Subjects

Atomic and molecular physics

Instrumentation and measurement

Dates

Issue 6 (28 March 1992)



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