Analysis of Divertor Heat Flux with Infrared Thermography During Gas Fuelling in the HL-2A Tokamak-中国期刊网

摘要 InHL-2Atokamaks,thebehaviorofheatfluxdepositedonthedivertortargetshasbeenstudiedduringdeuteriumgasfuelling.Theheatfluxisreducedsignificantlyaftersupersonicmolecularbeaminjection(SMBI)fuellingduringOhmicandelectroncyclotronresonanceheating(ECRH)divertordischarges.TheSMBIfuellingcausesanincreaseintheplasmadensityandthischangeresultsintheexperiencedchangeoftheedgeproperties.MostofthisreductionindivertortargetheatfluxoccurstogetherwithahighplasmaradiationregionlocatedatneartheX-point.Thelargestreductioninheatfluxprofilesisobservedattheoutboarddivertorseparatrixstrikepoint,whiletheheatfluxfarfromthestrikepointremainsalmostunchanged.Inparticular,withSMBImulti-pulsesgasfuelling,apartiallydetacheddivertorregimeisobservedwithahighlyradiatingregionattheX-point.Withtheonsetofthepartiallydetacheddivertorregime,asuddendropinbothheatfluxandpowerflowonthedivertortargetisobserved.Thereductioninpowerloadonthedivertortargetsisroughlyequaltotheincreaseinplasmaradiationloss.

1DING Xuantong YANG Qingwei YAN Longwen LIU Dequan XIAO Zhenggui ZHU Genliang LIU Yi ZHOU Yan PAN Yudong CUI Zhengying LIU Zetian SHI Zhongbing JI Xiaoquan XIAO Weiwen LIU Yong. Electron Heat Transport during Center Fuelling by Pellet Injection on HL-2A Tokamak.物理,2005-01.
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5CUI Zhengying SUN Ping PAN Yudong LI Wei WANG Quanming CAO Zeng WANG Mingxu. Impurity Behaviours of HL-2A Divertor Tokamak during the Initial Operation Period.物理,2006-01.
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Analysis of Divertor Heat Flux with Infrared Thermography During Gas Fuelling in the HL-2A Tokamak

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Analysis of Divertor Heat Flux with Infrared Thermography During Gas Fuelling in the HL-2A Tokamak

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