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Cold electrons to aid better imaging techniques

from E! Science News

A new source of very cold electrons will improve the quality and speed of nanoimaging for drug and materials development to a trillionth of a second. A team led by Rick Scholten at the University of Melbourne used lasers to cool atoms to a few millionths of a degree above absolute zero and then to extract a beam of extremely cold electrons. Using new technology, they were able to create beams in complex shapes, and because the electrons are so very cold (about 10 degrees above absolute zero) the beam retains that shape, rather than exploding as it would for a conventional hot electron source. A report of the work is published in Nature Physics. more

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