A new shape to tame fusion's hottest challenge

Don’t burn the wall! That phrase sums up one of fusion’s most pressing challenges: protecting reactor walls from the extreme heat of plasma. Physicists at EPFL now report a new approach to address this major obstacle. By altering the magnetic shape inside a tokamak, they have discovered a new form of plasma radiation. This breakthrough could provide a far more reliable way to handle the fusion exhaust power. The research has been recently published in Physical Review Letters and featured in APS Physics Magazine.