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    Correlated ion analysis and the interpretation of atom probe mass spectra

    231948_231948.pdf (3.297Mb)
    Access Status
    Open access
    Authors
    Saxey, David
    Date
    2011
    Type
    Journal Article
    
    Metadata
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    Citation
    Saxey, D. 2011. Correlated ion analysis and the interpretation of atom probe mass spectra. Ultramicroscopy. 111 (6): pp. 473-479.
    Source Title
    Ultramicroscopy
    DOI
    10.1016/j.ultramic.2010.11.021
    School
    John de Laeter CoE in Mass Spectrometry
    URI
    http://hdl.handle.net/20.500.11937/17392
    Collection
    • Curtin Research Publications
    Abstract

    Several techniques are presented for extracting information from atom probe mass spectra by investigating correlations within multiple-ion detector events. Analyses of this kind can provide insights into the origins of noise, the shape of mass peaks, or unexpected anomalies within the spectrum. Data can often be recovered from within the spectrum noise by considering the time-of-flight differences between ions within a multiple event. Correlated ion detection, particularly when associated with shifts in ion energies, may be used to probe the phenomenon of molecular ion dissociation, including the questions of data loss due to ion pile-up or the generation of neutrals in the dissociation process.

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