Imaging of 30 nm gold spheres by dark-field scanning transmission x-ray microscopy

Henry N. Chapman*, Shawn Williams, Chris Jacobsen

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2 Scopus citations

Abstract

In scanning transmission x-ray microscope (STXM), it is possible to obtain dark-field images by blocking the undeviated transmitted photons so that only x-rays scattered by the specimen are detected. The method offers much higher contrast of small features and the possibility of detecting small features with higher signal to noise for the same incident x-ray flux. Also the signal depends on both the amplitude and phase of the specimen, rather than just the amplitude. One important application of dark-field x-ray microscopy is the imaging of gold-labelled biological specimens. A detailed experimental characterization of the optical set-up was undertaken. Images have been obtained, of a sample consisting of 30-nm-diameter gold spheres on a formvar film.

Original languageEnglish (US)
Title of host publicationProceedings - Annual Meeting, Microscopy Society of America
EditorsG.W. Bailey, A.J. Garratt-Reed
Pages52-53
Number of pages2
StatePublished - Dec 1 1994
EventProceedings of the 52nd Annual Meeting of the Microscopy Society of America - New Orleans, LA, USA
Duration: Jul 31 1994Aug 5 1994

Other

OtherProceedings of the 52nd Annual Meeting of the Microscopy Society of America
CityNew Orleans, LA, USA
Period7/31/948/5/94

ASJC Scopus subject areas

  • Engineering(all)

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