Abstract #1834
A straightforward direct optimization method for designing biplanar gradient coils using artificial bee colony algorithm
Yasuhiko Terada 1 , Kazunori Ishizawa 1 , and Katsumi Kose 1
1
Institue of Applied Physics, University of
Tsukuba, Tsukuba, Ibaraki, Japan
Winding patterns of gradient coils are often designed
using target-field (TF) methods. However, the TF methods
need time-consuming parameter tuning and trial-and-error
approach to obtain a desired performance. Moreover, the
TF methods ignore the dimensions of winding wires and
sometimes lead to unrealizable coils for construction.
Here we proposed a simple and straightforward method for
designing planar gradient coils with discrete windings,
which does not require parameter tuning. In the proposed
scheme, the coil geometric parameters were optimized by
an artificial bee colony (ABC) algorithm. The use of ABC
greatly accelerates the design speed, compared with
other discrete-wire based methods, and can also provide
coil performances comparable with the TF method. The
proposed method was used to design gradient coils for a
vertical wide-bore superconducting MRI system (4.74 T),
and the validity of the method was experimentally
confirmed.
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