A high power driving and selection field coil for an open MPI scanner

Gael Bringout,Hanne Wojtczyk,W Tenner,Matthias Graeser,M Gruttner,J Haegele,R L Duschka,N Panagiotopoulos,Florian M Vogt,Jorg Barkhausen,Thorsten M Buzug

Magnetic Particle Imaging（2013）

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摘要

Three Litz wires have been used in parallel in order to decrease the layer to layer voltage down to 4 kV and the coil voltage down to 8 kV. A two millimeter thick epoxy plate has been glued between each layer, in order to prevent any electrical breakdown between the layers. A special epoxy has been used to minimize the inner temperature of the coil, which reached 180°C with a dissipated power of 5.2 kW. The use of parallel Litz wire leads to currents having different phase angle in every wire which has to be corrected.

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关键词

biomagnetism,biomedical electronics,biomedical equipment,biomedical imaging,coils,epoxy insulators,magnetic particles,wires,litz wires,electrical breakdown,epoxy plate,glueing,high power driving,inner coil temperature,open mpi scanner,parallel litz wire,power 5.2 kw,selection field coil,size 2 mm,temperature 180 c,voltage 4 kv,voltage 8 kv,imaging,heating

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