The transport of tungsten impurities induced by the intrinsic carbon during upper-single null discharge on EAST tokamak

The transport of tungsten impurities induced by the intrinsic carbon during upper-single null discharge on EAST tokamak

•SOLPS-DIVIMP modeling is applied to the production and transport of W impurities on EAST.•High ne,sepOMP suppresses W impurity, while higher input power enhances W concentration.•Strong correlation between Te at the outer target and W ion density at core is observed.•Te 

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Veröffentlicht in:Nuclear materials and energy 2020-12, Vol.25, p.100849, Article 100849
Hauptverfasser: Zhou, Qingrui, Sang, Chaofeng, Xu, Guoliang, Ding, Rui, Zhao, Xuele, Wang, Yilin, Wang, Dezhen
Format: Artikel
Sprache:eng
Schlagworte:
Divertor
Power radiation
Target erosion
Tungsten impurity transport
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Beschreibung
Zusammenfassung:•SOLPS-DIVIMP modeling is applied to the production and transport of W impurities on EAST.•High ne,sepOMP suppresses W impurity, while higher input power enhances W concentration.•Strong correlation between Te at the outer target and W ion density at core is observed.•Te 
ISSN:2352-1791
2352-1791
DOI:10.1016/j.nme.2020.100849