GLOBUS-M. From concept to engineering

GLOBUS-M spherical tokamak is to be designed and constructed at A.F. Ioffe Institute, St. Petersburg. Basic machine parameters, operational regimes, expected plasma parameters, as well, as necessary configuration of magnetic field coils were simulated and corresponding results are presented. Structural analysis of the machine was performed that gives the possibility to identify critical components of GLOBUS-M tokamak with detail analysis and tests of their behavior (central solenoid, conductor for central solenoid and toroidal field coil joints). Project expertise results in revision of some tokamak parts design which improves the machine performance (toroidal and partly poloidal field coils, vacuum vessel). The revision approach is outlined.