Dissociative attachment studies by negative-ion time-of-flight mass spectrometry

Abstract

Experiments using time-of-flight mass spectrometry for studying the formation of negative ions in dissociative attachment processes by electron impact are discussed. The problems of making accurate measurements of absolute partial cross-sections have been solved using a combination of a new pulsed-electron-beam/pulsed-ion-extraction technique, the relative flow technique and a time-of-flight mass spectrometer. We also discuss some of the results obtained utilizing this method.