Inter-laboratory comparison of numerical dosimetry for human exposure to 60 Hz electric and magnetic fields.
In recent years, with the availability of high resolution models of the human body, numerical computations of induced electric fields and currents have been made in more than one laboratory for various exposure conditions. Despite the verification of computational methods, questions are often asked about the reliability of these data. In this paper, computational results from two laboratories that presented data in compatible formats are compared, supplemented with additional data from the third laboratory. Two exposures to uniform fields at 60 Hz are evaluated. The human body models used in the computations are different and so are the computation al methods and codes. There are some differences in the conductivity values used for some of the tissues, as well. The results of the comparison confirm that these data are reliable, as the overall agreement is reasonably good and the differences can be rationally explained. This comparison also underscores the importance of accurate data on the dielectric properties of tissues.
Stuchly
M A
MA
Department of Electrical & Computer Engineering, University of Victoria, Victoria, BC V8W 3P6 Canada. mstuchly@ece.uvic.ca
Gandhi
O P
OP
D003198:Computer Simulation; D004553:Electric Conductivity; D004560:Electricity; D004574:Electromagnetic Fields; D004781:Environmental Exposure; D006801:Humans; D007753:Laboratories; D008280:Magnetics; D008953:Models, Anatomic; D008954:Models, Biological; D011829:Radiation Dosage; D015203:Reproducibility of Results