Estimation of 3D fractal dimension of real electrical tree patterns

In this study, we investigated methods of reconstructing higher-resolution three-dimensional (3D) patterns of real electrical tree patterns. We studied two kinds of reconstruction methods, and both methods were applied to the same specimen. One method is a mechanical preparation of serial cross sections and the other is a computerized tomography method using projections. Furthermore, to examine the fractal properties of reconstructed 3D tree patterns, the fractal dimension of their patterns was estimated by means of a box counting method. The results showed that both methods can reconstruct 3D electrical tree pattern accurately and the obtained patterns have fractal properties