Abstract #1832
Novel Approaches in the Coupled Circuit Simulation of Eddy Currents Induced by Cylindrical Gradient Coils
Md. Shahadat Hossain Akram 1 , Koki Matsuzawa 1 , Yasuhiko Terada 1 , and Katsumi Kose 1
1
Institute of Applied Physics, University of
Tsukuba, Tsukuba, Ibaraki, Japan
Solid angle coupled circuit method is proposed for Gz
and Gx cylindrical type gradient coils. 3D solid angle
was calculated for both coils. Actuance calculation was
performed to consider the induction effect to a
particular subdomain due to eddy currents in the
surrounding subdomains. The degradation of magnetic
field inside the materials due to induced antiparallel
magnetic moments was also considered in the coupling
calculation considering subdomains taken inside the
materials. Gradient echo shift experiment was conducted
for verification. We found good agreements between
simulation and experimental results.
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