基于最小二乘法的EAST托卡马克光学等离子体边缘重建（英文）

基于最小二乘法的EAST托卡马克光学等离子体边缘重建（英文）Title: Optical Plasma Edge Reconstruction of EAST Tokamak Based on the

EAST 基于最小二乘法的托卡马克光学等离子体边 缘重建（英文） Title:OpticalPlasmaEdgeReconstructionofEASTTokamak BasedontheLeastSquareMethod Abstract: Edgeplasmaplaysanimportantroleintheperformanceand stabilityoftokamakfusionplasma.Therefore,accurately understandingandreconstructingtheedgeplasmaiscrucialfor theimprovementofthetokamakperformance.Inthisstudy,we presentanopticaledgeplasmareconstructionmethodbasedon theleastsquaremethodfortheEAST(ExperimentalAdvanced SuperconductingTokamak)tokamak.Themethodutilizesthedata obtainedfromtheedgecamerasystemoftheEASTtokamakand appliestheleastsquaremethodtoreconstructthe2Dplasma profileattheedge.Thereconstructedplasmaprofileisthen comparedwiththerawdataobtainedfromtheedgecamera systemtovalidatetheaccuracyofthemethod. Introduction: Tokamakfusionplasmaisapromisingcleanenergysource thatcanprovidesufficientenergyforhumanbeingsinthenear future.Theperformanceandstabilityoftokamakfusionplasma dependontheplasmaedge,whichisthetransitionregionfrom thehigh-temperaturefusionplasmatothelow-temperature vesselwall.Theplasmaedgeplaysacrucialroleinthe confinement,transport,andpowerexhaustofthetokamak plasma.Therefore,accuratelyunderstandingandreconstructing theedgeplasmaiscriticalforimprovingthetokamak performanceandrealizingthepotentialoffusionenergy. TheEAST(ExperimentalAdvancedSuperconducting Tokamak)tokamakisoneofthelargestandadvanced experimentalfacilitiesforfusionresearchworldwide.Itisdesigned toachievesteady-state,high-confinementplasmaina high-magnetic-fieldenvironment.TheedgeplasmaoftheEAST tokamakisopticallydiagnosedbyasetofedgecamerasystems. Inthisstudy,weproposeanopticaledgeplasma reconstructionmethodbasedontheleastsquaremethodforthe