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Abstract #4050

The Very RF Hungry Caterpillar Trap (Highly Flexible, Distributed System of Toroid Cable Traps)

Ekin Karasan1, Victor Taracila2, Fraser Robb2, and Michael Lustig1
1Department of Electrical Engineering, University of California, Berkeley, CA, United States, 2GE Healthcare, Coils, Aurora, OH, United States

“In the light of the moon a little egg lays on a leaf”[7]

Management of cabling connecting coil arrays to system remains the nightmare of RF-engineers. Coupling within arrays to cabling reduces performance, and coupling to transmit field causes high shield currents. Consequently, traps are placed on conductors. To provide high blocking, traps are rigid, large and often heavy, hindering flexibility. Instead of a few high blocking traps, we propose a distributed system of small, elastic traps. We leverage self-shielded resonant toroids forming a caterpillar-like structure. We show that this design can attenuate shield currents while being robust to flexing.

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