Fractal dimension of the accessible perimeter of diffusion-limited aggregation

Abstract
We directly measure the fractal dimension DA of the accessible perimeter for diffusion limited aggregation. We find DA=D, where D is fractal dimension. Moreover, the number of inaccessible sites also scales as the mass of the entire aggregate, stabilizing at (3637) % of the total perimeter after a short transient. Hence, the well-known anomalies in the multifractal analysis of the growth probability distribution are not a result of the possibility DA