Energy loss and straggling ofp, dand alpha-particles in Au in the energy region 0.2 to 2.4 MeV

Autor: H. W. Alberts, J. B. Malherbe
Rok vydání: 1983
Předmět:
Zdroj: Radiation Effects. 69:231-238
ISSN: 0033-7579
DOI: 10.1080/00337578308217825
Popis: Energy loss and straggling for protons, deuterons and α-particles in thin gold foils were measured by the indirect transmission technique. The measured stopping powers of the hydrogen ions agree reasonably well with the semi-empirical values of Andersen and Ziegler. The measured stopping powers for the helium ions are between 4% and 12% higher than the semi-empirical values of Ziegler. Stopping ratios of the He and hydrogen ions for the same target foils are slightly higher than Ziegler's master curve. The straggling values are energy independent above 0.4 MeV/amu. The hydrogen values are about 20 % lower than the Bohr estimate, while the straggling of the helium ions tend to reach the Bohr value at energies above 0.4 MeV/amu.
Databáze: OpenAIRE