PROJECT TITLE :
Magnetic Design Method of Non-Axisymmetric Yoke Shapes for MRI Magnets
This paper presents a magnetic design method of non-axisymmetric yoke shapes for reducing the magnetic stray field and yoke weight. A new variant of the differential evolution for multi-objective functions is implemented to go looking for the optimal yoke dimensions. This new algorithm has two characteristics: 1) the yoke weight, which is treated as an objective perform, is always evaluated before the magnetic stray field, that is treated as a constraint operate and a pair of) among the generated solution candidates, solely the worst solution candidate is chosen to be updated. When giving a detailed description of this algorithm, results of the application of the planning method to a magnetic resonance imaging magnet are shown.
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