Title :
Large-Scale Calculation of Low-Frequency-Induced Currents in High-Resolution Human Body Models
Author :
Barchanski, Andreas ; Clemens, Markus ; Gjonaj, Erion ; Gersem, Herbert De ; Weiland, Thomas
Author_Institution :
Tech. Univ. Darmstadt
fDate :
4/1/2007 12:00:00 AM
Abstract :
We present large-scale computations of currents induced in the human body, arising from an external low-frequency magnetic-field source. The calculations are performed using the Ex-SPFD approach; an extension of the classical SPFD approach, that can handle arbitrarily shaped magnetic-field sources and highly conductive material inside the computational domain. In order to sufficiently resolve even small organs such as the eye, very fine spatial resolution is needed. Such fine resolution results in very large systems of equations. Problems consisting of up to 200 millions of unknowns are presented
Keywords :
biological effects of radiation; biomagnetism; finite difference methods; arbitrarily shaped magnetic field sources; computational domain; high-resolution human body models; large-scale calculation; low-frequency-induced currents; magnetic field source; scalar-potential finite-difference approach; Biological system modeling; Biological tissues; Brain modeling; Equations; Finite difference methods; Humans; Large-scale systems; Magnetic domains; Magnetic materials; Spatial resolution; Biological effects of electromagnetic radiation; eddy currents; finite difference methods;
Journal_Title :
Magnetics, IEEE Transactions on
DOI :
10.1109/TMAG.2006.892272