Conference Proceedings Paper - Energies "Whither Energy Conversion? Present Trends, Current Problems and Realistic Future Solutions" Negative Triangularity Tokamak as Fusion Energy System

Fusion energy development is quite successful in both getting equivalent energy break-even condition in large tokamak and clarifying many important physics in the magnetically confined plasma to proceed to a fusion experimental reactor, ITER (12). Now, fusion research has to solve the power handling toward fusion demonstration power reactor (DEMO). A tokamak plasma with strongly negative triangularity may offer such an opportunity as an innovative concept (2). Experimental and theoretical works at CRPP-EPFL shows promising results for negative triangularity tokamak (31). In this paper, we review the current understanding of such configuration in both physical and technological aspects.