Bestimmung von Streuquerschnitten für thermische Elektronen aus der Linienform von ECR-Signalen / Determination of the Scattering Cross Section for Thermal Electrons from the Line Shape of ECR-Signals

Abstract

Changes of line width and line shape of electron cyclotron resonance (ecr) signals are measured as function of the pressure of neutral gases. The results are discussed in terms of an analysis for the absorption of microwave power by electrons given by Fehsenfeld et al. Good agreement is found for σ-values as obtained in ecr and drift tube measurements.