Drifts or drift surfaces

Abstract

Solutions are obtained to the relativistic equations of motion describing the trajectories of freely circulating particles in a Tokamak. For electrons or ions subjected to toroidal acceleration or deceleration or for a poloidal field changing with time, the motion lies on a toroidal drift surface whose major radius changes slowly with time and whose minor radius is nearly constant.

The magnetic mirror approach to fusion

“…Recently, in connection with TM fusion power plant studies discussed later, much simplified direct convertor structures specially adapted to the TM system have been proposed. As described by Barr and Logan [366], the idea takes advantage of the radial separation of ions and electrons in TM systems, as discussed in Sections 11 and 13. In a conical collector at the ends, ions would be collected on positively charged outer annular rings, while electrons would be collected on inner rings.…”