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NMR finds holes in nuclear waste storage Jan 10
A ceramic material touted for its potential to store radioactive waste is much less resilient to radiation damage than previously thought. Physicists in the UK used a high-resolution nuclear magnetic resonance (NMR) technique to show that alpha-radiation causes too much damage in zircon to ensure safety over long timescales. They now claim the NMR technique will help to assess the long-term durability of other potential ceramics by providing a deeper, atomic-scale understanding of damage events (Nature 445 190).
Light squeezes through nano coax Jan 10
Physicists in the US have created the first nanoscale coaxial cables for the transmission of light. Operating much like the coaxial cables used to distribute television and radio signals, the cables can transmit light with wavelengths nearly four times their 200 nm diameter. The researchers claim that the ability to control light over sub-wavelength distances could lead to better optical microscopes, smaller computer chips and more efficient solar panels (Appl Phys Lett 90 021104)
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