Optimization of flux-surface density variation in stellarator plasmas with respect to the transport of collisional impurities

Avoiding impurity accumulation is a requirement for steady-state stellarator operation. The accumulation of impurities can be heavily affected by variations in their density on the flux-surface. Using recently derived semi-analytic expressions for the transport of a collisional impurity species with...

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Veröffentlicht in:	Nuclear fusion 2019-06, Vol.59 (6), p.66028
Hauptverfasser:	Buller, S., Smith, H.M., Mollén, A., Newton, S.L., Pusztai, I.
Format:	Artikel
Sprache:	eng
Schlagworte:	collisional transport fusion plasma impurity transport stellarator
Online-Zugang:	Volltext
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