Stopping power and straggling of energetic light ion beams in yttrium |
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Authors: | H. W. Alberts |
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Affiliation: | Department of Physics , University of Pretoria , Pretoria, 0002, South Africa |
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Abstract: | Energy loss and straggling for protons, deuterons and α-particles in yttrium were measured in the energy region between 0.15 MeV and 2.5 MeV. The measured stopping powers of the hydrogen ions agree reasonably well with the semi-empirical values of Andersen and Ziegler, although better agreement was found with the values of Janni. For helium ions there are a marked difference with the values of Ziegler. Below 200 keV/amu the stopping ratios of the helium and hydrogen ions are lower than Ziegler's master curve. The straggling values of the hydrogen ions are about 15% lower than the Bohr estimate, while the straggling of the helium ions reach the Bohr value at about 0.2 MeV/amu. |
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Keywords: | Energy loss Straggling Stopping Power Yttrium |
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