Bootstrap Tokamak Reactor Driven by Fusion-Produced Alpha Particles

Abstract
A new possibility for steady-state current drive based on the use of neoclassical transport processes in tokamak reactors is considered. It is found that the existence of a steady-state self-sustaining plasma current can be ensured with a bootstrap current generated on the magnetic axis by fusion-produced alpha particles. The radial distribution of the driving current turns out to be peaked at a radius close to the magnetic axis.