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A numerical survey of motion-induced electric fields experienced by MRI operators
No full textThis paper deals with the electric field generated inside the bodies of people moving in proximity to magnetic resonance scanners. Different types of scanners (tubular and open) and various kinds of movements (translation, rotation, and revolution) are analyzed, considering the homogeneous human model proposed in some technical Standards. The computations are performed through the Boundary Element Method, adopting a reference frame attached to the body, which significantly reduces the computational burden. The induced electric fields are evaluated in terms of both spatial distributions and local time evolutions. The possibility of limiting the study to the head without affecting the accuracy of the results is also investigated. Finally, a first attempt to quantify the transient effect of charge separation is proposed
Reply to Comment on Induction of Electric Field in Human Bodies Moving Near MRI: an Efficient BEM Computational Procedure
No full textThe comment written by Cobos Sanchez provides
the occasion to clarify a key point in the development of the formulation proposed in 2011 by the authors. In particular, even
if some Cobos Sanchez’s remarks are theoretically correct, the analysis of the working assumptions shows that they were properly disregarded because insignificant on a practical side
Simulation of supply frequency effects in multiconductor busbar systems under ac conditions
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MATERIAL INFLUENCE OF THE SUPPORT ON THE STRAY PARAMETERS OF COILS FOR REFERENCE MAGNETIC FIELD GENERATION
No full textSimulation of a contactor protected by fuses when the contactor makes an a.c. short-circuit current
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