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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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2. Chemical identification of ions

Positive A n+ ions produced by field-effect evaporation are projected from the tip by the intense surface electric field. The ions are accelerated roughly along the field lines towards a position-sensitive, time-resolved detector (figure 2 ). The kinetic energy acquired is of the form :

Wc=n eV

with :

n
 : 
state of charge,
e...
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Chemical identification of ions
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