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Conference Paper

Influence of lead wire diameter on radio frequency induced power deposition at 64 and 127 MHz

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Kozlov,  Mikhail
MR:comp GmbH, Gelsenkirchen, Germany;
Department Neurophysics, MPI for Human Cognitive and Brain Sciences, Max Planck Society;

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Citation

Kozlov, M., & Schaefers, G. (2016). Influence of lead wire diameter on radio frequency induced power deposition at 64 and 127 MHz. In Proceedings of the 2016 IEEE Conference on Antenna Measurements & Applications (CAMA). Piscataway, NJ, USA: IEEE. doi:10.1109/CAMA.2016.7815805.


Cite as: http://hdl.handle.net/21.11116/0000-0004-A9BE-8
Abstract
At 64 and 127 MHz for insulated stainless steel wires with an insulation diameter of 1.46 mm, we evaluated the dependence of RF-induced power deposited at a hotspot (p) on wire and tip electrode diameters. The lead electrical length, the transfer functions obtained with 3-D electromagnetic simulations and the power deposition p significantly depended on wire diameter and substantially on tip electrode diameter. Discrepancy of results was up to 1280% at 64 MHz and up to 3200% at 127 MHz.