Evaporation mode and mass resolution
Atom probe tomography APT
Article REF: P900 V2
Evaporation mode and mass resolution
Atom probe tomography APT

Authors : Didier BLAVETTE, François VURPILLOT, Bernard DECONIHOUT

Publication date: December 10, 2013 | Lire en français

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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, Mn552+ (M/n = 27.47) is detected between two Fe isotopes Fe542+=26,97,  Fe562+=27,97)...

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