L’ionisation et la dissociation des molécules par des électrons monoénergétiques

I. — Construction et fonctionnement de la source d’ions utilisée

Institut de chimie générale, Université de Liège, Liège, Belgique, Belgique.

Abstract

The different ways of obtaining monoenergetic particles for flic study of ionization and dissociation processes in molecules are briefly reviewed and discussed. A monoenergetic ion source of the Fox type is presented and its operating conditions discussed in detail, with particular emphasis on the characteristics of the source, which is a special type of pentode. Its functioning has been tested with rare gases.