Abstract
Summary An approximate, but efficient numerical solution for threedimensional (3-D) electromagnetc (EM) scattering problems is in great demand for practical application to 3-D EM exploration. We have investigated a magnetic field integral equation using Born approximation. It appears that there is an advantage to this approach because magnetic fields vary more smoothly than electric fields if the medium is nonmagnetic. We calculated vertical magnetic fields inside and outside a thin sheet conductor. After a few iterations, the magnetic field approaches the known solution inside and outside the thin sheet conductor. The computing time required for the Born approximation solution is very reasonable. This result shows that magnetic field integral equation solution is effective for 3-D EM modeling for practical use.
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