Impurity transport in ITG and TE mode dominated turbulence
Paper in proceedings, 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

Author

Andreas Skyman

Chalmers, Department of Radio and Space Science, Transport Theory

Hans Nordman

Chalmers, Department of Radio and Space Science, Transport Theory

Pär Strand

Chalmers, Department of Radio and Space Science, Transport Theory

Frank Jenko

Florian Merz

Proceedings of EPS 2010, Europhysics Conference Abstracts

Vol. 34A

Driving Forces

Sustainable development

Areas of Advance

Energy

Roots

Basic sciences

Subject Categories

Other Physics Topics

Fusion, Plasma and Space Physics

ISBN

2-914771-62-2

More information

Created

10/7/2017