One area of research is to see how helium, which is produced during fusion of two hydrogen isotopes, affects the materials inside nuclear fusion reactors. These photos show how small filaments form on the surface of tungsten which is used on the interior of fusion reactors. By studying how helium degrades from the energy produced from fusion, researchers hope to develop reliable materials for reactors.
June 29, 2011 8:42 AM PDT
Photo by: Martin LaMonica/CNET
| Caption by: Martin LaMonica
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