Open AccessThree‐dimensional chemical mapping by scanning transmission X‐ray spectromicroscopy
Author(s) -
Johansson Göran A.,
Tyliszczak Tolek,
Mitchell Gary E.,
Keefe Melinda H.,
Hitchcock Adam P.
Publication year - 2007
Publication title -
journal of synchrotron radiation
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.172
H-Index - 99
ISSN - 1600-5775
DOI - 10.1107/s0909049507029962
Subject(s) - materials science , chemical imaging , resolution (logic) , image resolution , polystyrene , optics , x ray , microscope , microstructure , visualization , acrylate , computer science , physics , composite material , polymer , artificial intelligence , hyperspectral imaging , monomer
Three‐dimensional (3‐d) chemical mapping using angle‐scan tomography in a scanning transmission X‐ray microscope is demonstrated. Apparatus, experimental procedures and data processing are presented and the 3‐d spatial resolution is evaluated. The technique is illustrated using mapping of a low‐density acrylate polyelectrolyte in and outside of polystyrene microspheres dispersed in water in a 4 µm‐diameter microcapillary. The 3‐d chemical visualization provides information about the microstructure that had not previously been observed.