Expressions for the neoclassical resistivity and the bootstrap current coefficients in terms of
aspect ratio and collisionality are widely used in simulating toroidal axisymmetric equilibria …

Tokamak plasmas are inherently comprised of multiple ion species. This is due to wall-bred
impurities and, in future reactors, will result from fusion-born alpha particles. Relatively small …

This lecture will present an overview of the important considerations related to particle and
energy transport in a tokamak. Transport in tokamaks can be inferred by analyzing the …

Impurities continue to be a concern for future fusion devices, and ongoing efforts are made
to study their generation, confinement, and control. Techniques for analysis of …

Abstract The Tokamak Simulation Code (TSC) has been used to model the time
dependence of several Ohmic discharges in the TFTR experiment. The semi-empirical …

Providing a historical overview of 50 years of fusion research, a review of the fundamentals
and concepts of fusion and research efforts towards the implementation of a steady state …

We have developed a numerical code to investigate steady state neutral-beam-driven,
ohmic and bootstrap currents which are consistent with MHD equilibrium. The code can …

A version of the BALDUR plasma transport code which calculates the evolution of plasma
parameters is documented. This version uses an MHD equilibrium which can be …

This paper proposes a control-oriented approach to the tokamak plasma current profile
dynamics. It is established based on a consistent set of simplified relationships, in particular …

The bootstrap current in a tokamak is examined by implementing the Hirshman-Sigmar
model and comparing the predicted current profiles with those from two popular …