Cold Atoms Could Replace Hot Gallium in Focused Ion Beams

Scientists at NIST have developed a radical new method of focusing a stream of ions into a point as small as one nanometer, a versatile ion source that is expected to have broad application in nanotechnology both for carving smaller features on semiconductors than now are possible and for nondestructive imaging of nanoscale structures with finer resolution than currently possible with electron microscopes.

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