2 papers
physics.plasm-ph2018
Optimization of flux-surface density variation in stellarator plasmas with respect to the transport of collisional impurities
Stefan Buller, Håkan M. Smith, Albert Mollén +2
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…
physics.plasm-ph2018
Collisional transport of impurities with flux-surface varying density in stellarators
S. Buller, H. M. Smith, P. Helander +3
High-Z impurities in magnetic confinement devices are prone to develop density variations on the flux-surface, which can significantly affect their transport. In this paper, we gen…