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Total voxel number (a, b, c) and voxel energy distribution (d, e, f) of δ-rays confined to VCyl3 for (1H, 3He, 12C). The voxel energy distributions, f(V.E) (d, e, f) are obtained for voxels outside the 100 nm radius of 20 μm tracks generated by the RITRACKS code.
