基于有限元的磁共振磁體極頭優(yōu)化設(shè)計(jì)

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中圖分類號(hào)：R445.2 文獻(xiàn)標(biāo)志碼：A 文章編號(hào)：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

常導(dǎo)磁共振成像（Magnetic Resonance Imaging，MRI）系統(tǒng)由磁體系統(tǒng)、梯度系統(tǒng)、射頻系統(tǒng)、計(jì)算機(jī)控制系統(tǒng)、屏蔽房系統(tǒng)、外殼和檢查床等組成。（剩余3676字）