基于有限元的磁共振磁体极头优化设计

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中图分类号：R445.2 文献标志码：A 文章编号：2095-2945（2025）18-0118-04

Abstract：Themagneticresonancepoleheadstructurewithhighuniformityoftheinitial magneticfieldwasdesignedby finiteelementoptimizationmethod.Firstly，parametricmodelingandsimulationarecariedoutontheparametersthatneedtobe optimizedforthepoleheadofthenormalconductor，andtheresponsesurfaceoptimizationmethodintheoptimizationmethodis usedtooptimizethepoleheadstructureofthenormalconductor；theinitialmagneticfielduniformityofthemagnetbefore optimizationis7.811Gs，andtheinitialmagneticfielduniforityafteroptimizationisO.751Gs，whichisimprovedby0.4 times.Thepole headstructureof thenormallconducting magnetbasedonfiniteelementresponsesufaceoptimizationmeetsthe designrequirements，canefectivelyimprovetheuniformityoftheinitialmagneticfield，andprovidesadesignmethodforthe optimal design of the normally conducting magnet structure.

Keywords： normal magnetic resonance；magnet; pole head;response surface optimization； finite element

常导磁共振成像（Magnetic Resonance Imaging，MRI）系统由磁体系统、梯度系统、射频系统、计算机控制系统、屏蔽房系统、外壳和检查床等组成。（剩余3676字）