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Article | REF: P900 V2

Atom probe tomography APT

Authors: Didier BLAVETTE, François VURPILLOT, Bernard DECONIHOUT

Publication date: December 10, 2013

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3. Evaporation mode and mass resolution

Good precision on the time of flight and on the energy acquired by the ion gives an excellent measurement of the mass ratio m to charge n of the emitted ion. The important thing, of course, is to separate two peaks of close mass.

Example

in an FeMn alloy, (M/n = 27.47) is detected between two Fe isotopes

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Evaporation mode and mass resolution
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