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field-ion microscope

[feeld-ahy-uh n, -ahy-on]
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noun
  1. a device in which the atomic structure of the surface of a conductor is made visible by introducing helium gas into the device and applying a high voltage to ionize and accelerate the gas toward a fluorescent screen.
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Origin of field-ion microscope

First recorded in 1950–55
Also called ion microscope.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018