Abstract

A high resolution ultraviolet photoelectron spectrometer specifically designed to study transient and unstable species is described. Its capabilities are enhanced by the novel pumping system for the analyzer, thus removing the necessity of a large vacuum chamber, and giving close access to the ionization chamber. Additional fast pumping for the ionization chamber and versatile sampling systems are also incorporated. Spectra are presented to show the general performance and the potential of the spectrometer for studying unusual chemical systems. In particular, the design features permit studies of discharge reactions, pyrolyses, atom-molecule reactions, highly reactive molecules and variable temperature work.

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