Abstract

A detailed study has been made of electron impact induced fluorescence from Ar clusters. Use of suitable filters in the vacuum ultraviolet spectral region together with time-resolved techniques has enabled the dimer emission from the clusters to be investigated in detail. Excitation function measurements have revealed a number of processes leading to exciton production. Two-center collisions within the cluster appear to be significant. A close parallel to what is observed with solid Ar targets is noted.

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