Near-field linear sampling method for axisymmetric eddy current tomography

This paper is concerned with Eddy-Current (EC) nondestructive testing of conductive materials and focuses, in particular, on extending the well-known LinearSampling Method (LSM) to case EC equations. We first present theoretical foundation LSM context point sources. then explain how this method can be adapted a realistic setting probes. In identifying shape external deposits from impedance measurements taken inside tube (steam generator), we show applied obtained sweeping set coils. Numerical experiments suggest that good results achieved using only few coils even limiting backscattering data.