Tritium handling issues in fusion reactor materials

Reactor Aspects of Fusion: Issues Related to Materials, Radioactivity and Radiation-induced Effects

A concise overview is given on materials applied in fusion technology. The influence of plasma operation on the behaviour of reactor components and diagnostic systems is discussed with emphasis on effects caused by fast particles reaching the reactor wall. Issues related to primary and induced radioactivity are reviewed: tritium inventory and transmutation. Tritium breeding in the reactor blank...

Wafer Fusion: Materials Issues and Device Results

A large number of novel devices have been recently demonstrated using wafer fusion to integrate materials with different lattice constants. In many cases, devices created using this technique have shown dramatic improvements over those which maintain a single lattice constant. We present device results and characterizations of the fused interface between several groups of materials.

Operating temperature windows for fusion reactor structural materials

A critical analysis is presented of the operating temperature windows for nine candidate fusion reactor structural materials: four reduced-activation structural materials (oxide-dispersion-strengthened and ferritic/martensitic steels containing 8–12%Cr, V–4Cr–4Ti, and SiC/SiC composites), copper-base alloys (CuNiBe), tantalum-base alloys (e.g. Ta–8W–2Hf), niobium alloys (Nb–1Zr), and molybdenum...

Accelerator-based ion beam analysis of fusion reactor materials

First wall components in controlled fusion devices undergo severe modification by various physical and chemical processes arising from plasma–material interactions: material erosion, its migration in the plasma and re-deposition. Ion beam analysis techniques play a prominent role in the studies of wall components exposed to hot plasmas. The intention of this work is to give a concise overview o...

A New Interpretation of Alpha- Particle-Driven Instabilities in Deuterium-Tritium Experiments on the Tokamak Fusion Test Reactor . A New Interpretation of Alpha- Particle-Driven Instabilities in Deuterium-Tritium Experiments on the Tokamak Fusion Test Reactor