Abstract
To understand cascade damage formation as a function of primary recoil energy, thin foils of gold were irradiated with 20–400 keV self-ions to a fluence of 1.0 × 10 14 ions/m 2 at 300 K. The yield of groups of vacancy clusters per irradiated ion saturated at an ion energy higher than 100 keV. The number of clusters in a group was found to vary even for the same energy ions. The size distribution of the clusters was not strongly dependent on the number of clusters in a group and the ion energy. An attempt was made to predict the distribution of defect clusters in thin foils of gold irradiated with 14 MeV neutrons from the present data based on a primary recoil energy spectrum.
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