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September 26th, 2004

Radioactivity speeds up

Abstract:
Nuclear physicists in Japan have shown that the electron-capture decay rate of radioactive beryllium-7 can be increased by almost 1% by placing it inside a carbon-60 "cage". This is the largest change in the decay rate of an element ever observed. Although the resulting reduction in the radioactive half-life is unlikely to help with the problem of storing nuclear waste, the cages could be used as tracers in medical radiotherapy.

Source:
physicsweb

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