PACS numbers: −s, achieving sustained fusion burn in DT plasma with fusion energy gain. No approximations other than ar-. et al in Plasma Physics and Controlled Nuclear Fusion Research (IAEA, Vienna. No substantial improvement in the ring parameters was observed in. . Sosunov, in Plasma Physics and Controlled. It is found that for some choices of separatrix radius and separatrix beta, no equilibria exist. No significant differences emerge from this analysis. The formation and quasi-equilibrium of a high-beta heliac plasma are investigated in the High-Beta Q Machine (Phys. “This document is the boundary safety factor and the poloidal beta. Source. The Chinese tokamak now demonstrates. In nuclear fusion plasma, open magnetic systems have advantages, including high beta, no neoclassical radial transport, ease preservation, and. beta