irradiation

(Newser) - A team of University of North Carolina scientists are working to bring X-ray technology into the 21st century, the Economist reports. The X-ray machines commonly used today rely on vacuum-tube technology little changed from a century ago, but physicist Otto Zhou and his colleagues have used nanotechnology to create smaller,...

(Newser) - Consumers worried about salad safety may soon be able to buy fresh spinach and iceberg lettuce zapped with just enough radiation to kill E. coli and a few other germs. The Food and Drug Administration will issue a new regulation tomorrow allowing spinach- and lettuce-sellers to take that extra step,...