Impurity transport in ITG and TE mode dominated turbulence
Paper i proceeding, 2010

The transport properties of impurities is of high relevance for the performance and optimisation of magnetic fusion devices. For instance, if impurities from the plasmafacing surfaces accumulate in the core, wall-impurities of relatively low density suffice to dilute the plasma and lead to unacceptable energy losses in the form of radiation. In the present study, turbulent impurity transport in Deuterium tokamak plasmas, driven by Ion Temperature Gradient (ITG) and Trapped Electron (TE) modes, has been investigated using fluid and gyrokinetic models. The impurity diffusivity (DZ) and convective velocity (VZ) are calculated, and from these the zero-flux peaking factor (PF0) is derived.

plasma physics

fusion

transport

Författare

Andreas Skyman

Chalmers, Institutionen för radio- och rymdvetenskap, Transportteori

Hans Nordman

Chalmers, Institutionen för radio- och rymdvetenskap, Transportteori

Pär Strand

Chalmers, Institutionen för radio- och rymdvetenskap, Transportteori

Frank Jenko

Florian Merz

Proceedings of EPS 2010, Europhysics Conference Abstracts

Vol. 34A

Drivkrafter

Hållbar utveckling

Styrkeområden

Energi

Fundament

Grundläggande vetenskaper

Ämneskategorier

Annan fysik

Fusion, plasma och rymdfysik

ISBN

2-914771-62-2

Mer information

Skapat

2017-10-07