Über die Winkelabhängigkeit der charakteristischen Energieverluste an Al, Si, Ag

Zusammenfassung

The angular dependence of the amount of the energy losses, of the width of the loss peaks, and of their intensities has been measured, and general agreement with the plasma theory is found for the 15 eV Al loss and the 17 eV Si loss. In addition, there is a remarkable dependence of the width of the Al loss peaks on the mean crystalline size. The intensities of the 3.6 eV Ag loss and the 6 eV Al loss show a more rapid decrease with scattering angle than is required by ordinary plasma theory. The variation of the intensities of these losses with foil thickness has been investigated and gives evidence that both of these losses must be due to surface excitation.

Im Rahmen unserer Untersuchungen über die unelastische Elektronenstreuung werden im folgenden Messungen zur Winkelabhängigkeit der charakteristischen Energieverluste mitgeteilt. Zunächst sollen die benötigten theoretischen Ergebnisse kurz zusammengestellt werden.