Figure 2.

(a) Primary beam and (b) secondary electron tracks pass through the target cylinders and the chord length distribution of primary beam tracks normalized by the maximum length, f(L_Ch,N) are plotted for cylinders with different ARs (c–f). The red dots on (a,b) represents voxel coordinates and central black line is the line approximation of the same track. Black lines of f(L_Ch,N) are analytical and red dots are the binned simulation results (c–f) for ¹H at 32 MeV.