Efficient determination of current densities induced in the human body from measured low-frequency inhomogeneous magnetic fields

An efficient numerical source model is proposed to calculate the induced current densities in the human body from measured low-frequency inhomogeneous magnetic fields emitted by electronic devices (e.g., household appliances or power tools). Due to the complex geometrical structure and complicated construction of the devices, an efficient equivalent-source formulation using magnetic elementary dipoles is determined to characterize the field source. Consequently, the validity of the proposed equivalent-source model is confined, and the induced current density in the human body is calculated for several kinds of appliances. (C) 2001 John Wiley & Sons, Inc.