engleski

Nonthermal electron scavenging in tetramethylsilane

The radiation-chemical yeild of Cl- ions resulting from a dissociative electron attachment to chlorobenzene has already been used as a measure of scavengeable electron yield in radiolysis of liquid. The competition between chlorobenzene and a secondary scavenger can be used to discriminate the reactions of nonthermal and thermalized electrons. At higher concentrations of secondary scavenger the reactions of thermalized electrons are completely supressed and the competition between thermalization and nonthermal electron scavenging by both scavengers takes place. By extrapolating the concentration of the secondary scavenger to zero, the ratio of thermalization and attachment can be obtained, as well as the ionization yield. The present work was carried out in deaerated solutions of chlorobenzene in tetramethylsilane. Nitrobenzene was used as a secondary scavenger. The concentration of radiolytically produced chloride was measured spectrophotometrically.

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