Handle variability in numerical exposure assessment: The Challenge of the Stochastic Dosimetry

Since 20 years large efforts have been spent to assess numerically the exposure induced by wireless communication systems. Taking advantage of the improvement of computers, large efforts have been carried out to improve the numerical methods and models used to assess the electric field and the SAR in tissues exposed. Today the versatile use of wireless systems has brought large variability in possible exposure configurations. In spite of progress in high-performance computing the needed computational time does not allow using methods such as Monte Carlo. To overcome this difficulty the exposure can be considered as a polynomial expansion with a model based on the Polynomial Chaos (PC). In this paper, the PC is used to characterize the exposure for two configurations. The efficiency and accuracy of such a method in dosimetry is also discussed.