Measuring helium nano-bubble formation in tungsten with grazing-incidence small angle X-ray scattering
The behaviour of helium in tungsten is an important concern for the fusion materials community. Under helium plasma exposure, small nano-scale bubbles form beneath the material surface as helium precipitates from the tungsten matrix. Under certain conditions this can lead to the subsequent formation of a surface “nano-fuzz”, though the mechanisms of this process are not presently understood. For sub-surface nano-bubble formation transmission electron ...[Show more]
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