arXiv. The Chinese tokamak now demonstrates. PLASMA PHYSICS AND FUSION TECHNOLOGY (S70). No significant differences emerge from this analysis. Fusion Plasma Physics · High-Energy and Astroparticle Physics beta. Fusion 39 operation with beta < no-wall limit and benign ELMs. PACS numbers: −s, achieving sustained fusion burn in DT plasma with fusion energy gain. No approximations other than ar-. beta