Self-consistent description of the plasma and impurity transport in tokamak reactor

摘要

A model is proposed which is capable to describing in a self-consistent way the plasma dynamics in the bulk and edge region of tokamak reactor. The model is based on the 1D description of the deuterium and impurity transport in the scrape-off layer (SOL). An analytical solution for the background plasma parameters in the SOL is found. impurities in the plasma periphery are described in terms of the so-called retention factor [1,2] giving the impurity density at the LCMS (Last Closed Magnetic Surface) as a function of the impurity density at the target. In order to analyse the impurity transport in the plasma core, two models are considered.