Über die Hallspannungsmessungen in einer Gleichstromgasentladung

The superficial processes produced by the fast electrons in a d.c. glow discharge may influence the values of the potential difference measured with the Hall probes. In order to obtain a good agreement between calculated and measured Hall voltages it is necessary to exclude these superficial processes, specially the secondary electron emission, at the surface of the Hall probes. In this paper the mentioned influence and the optimum work conditions for Hall probes measurements in a d.c. glow discharge are studied.