Main concepts for a stationary reactor-torsatron

The results of investigations on studying the possibility of designing a stationary reactor with 2-4 GW electric power on the l=3 torsatron basis are presented. Calculations have shown that reactor plasma parameters may correspond to the ''plateau'' regime as well as ''superbanana'' regime of the neoclassical transport theory. The influence of plasma contamination by α particles on reactor parameters is studied. Stable burn up regimes have been found. It is shown that burn up stability is ensured by transport coefficients certain regularities characteristic of stellarator systems. The reactor characteristics dependences on collision parameter and wall loading in the ''plateau'' regime are given. Reactor parameters at various regimes are given as well. The reactor typical parameters are as follows: average plasma boundary radius-2 m, aspect radio-20-25, magnetic induction 5,5-7,5 T, ion component temperature 6,5-8 keV, criticaly factor β=5-10 %, electric power 2-4 GW