JET’s new divertor

Philippe Mertens from Forschungszentrum Jülich is checking the solid tungsten lamellae on four tile modules of the new divertor. This central part of the divertor on the bottom of the vessel will have to withstand the highest heat loads of any component in JET. In operation, the lamellae may reach temperatures of up to 2,200°C and they have therefore been individually shaped to maximise their power handling capabilities. In total there will be 48 of these modules in the complete divertor. This work is part of the currently ongoing shutdown to maintain and enhance Europe’s largest fusion device to answer questions raised in the fusion community.