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Since the discovery of X-rays over a century ago the techniques applied to the engineering of X-ray sources have remained relatively unchanged. From the inception of thermionic electron sources, which, due to simplicity of fabrication, remain central to almost all X-ray applications, there have been few fundamental technological advances. However, with the emergence of ever more demanding medical...
Graphene has a huge variety of unique optoelectronic properties. Its recent rapid emergence and demonstrable richness in electron transport has been unprecedented. This atomically thin, ordered structure has exceptionally high attainable aspect ratios - potentially higher even than that of carbon nanotubes - whilst defective edge terminations rich in dangling bonds render it superior to metallic nanowires;...
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