Selection of plasma-facing materials in next-step fusion devices

G. Federici1, V. Barabash1, G. Janeschitz1, R. Tivey1, A. Loarte2, J. Roth3, C.H. Skinner4, W.R. Wampler
1ITER-CTA International Team, Garching, Germany
2EFDA Close Support Unit, Garching, Germany
3Max-Planck-Institut fůr plasmaphysik, EURATOM Association, Garching, Germany
4Princeton Plasma Physics Laboratory, Princeton, NJ, USA

Tóm tắt

Designing a robust interface between a thermonuclear plasma and the solid material environment remains a major challenge for next-step fusion devices and future power fusion reactors. Challenging trade-offs in material choice for plasma-facing components were identified in the internationally co-ordinated R&D program supporting the Engineering Design Activities of the ITER project. This paper surveys factors relevant to material choices in next-step devices, describes advantages and disadvantages of the various options, and discusses how their application depends on the specific operational requirements. Advances in materials technology with high-Z materials, together with improved plasma control leading to reduction and mitigation of off-normal events such as disruptions and ELMs, are an essential part of the long-term solution.

Từ khóa

#Plasma devices #Plasma materials processing #Fusion reactor design #Plasma applications #Robustness #Solids #Fusion reactors #Research and development #Design engineering #Power engineering and energy

Tài liệu tham khảo

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