PROSPECTS FOR SPHEROMAK FUSION-REACTORS

The reactor study of Hagenson and Krakowski demonstrated the attractiv eness of the spheromak as a compact fusion reactor, based on physics p rinciples confirmed in CTX experiments in many respects. Most uncertai n was the energy confinement time and the role of magnetic turbulence inherent in the concept. In this paper, a one-dimensional model of hea t confinement, calibrated by CTX, predicts negligible heat loss by mag netic turbulence at reactor scale.