Document Detail

The Influence of the Sample Thickness on the Lateral and Axial Resolution of Aberration-Corrected Scanning Transmission Electron Microscopy.
MedLine Citation:
PMID:  23290505     Owner:  NLM     Status:  Publisher    
The lateral and axial resolution of three-dimensional (3D) focal series aberration-corrected scanning transmission electron microscopy was studied for samples of different thicknesses. The samples consisted of gold nanoparticles placed on the top and at the bottom of silicon nitride membranes of thickness between 50 and 500 nm. Atomic resolution was obtained for nanoparticles on top of 50-, 100-, and 200-nm-thick membranes with respect to the electron beam traveling downward. Atomic resolution was also achieved for nanoparticles placed below 50-, 100-, and 200-nm-thick membranes but with a lower contrast at the larger thicknesses. Beam broadening led to a reduced resolution for a 500-nm-thick membrane. The influence of the beam broadening on the axial resolution was also studied using Monte Carlo simulations with a 3D sample geometry.
Ranjan Ramachandra; Hendrix Demers; Niels de Jonge
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2013-1-7
Journal Detail:
Title:  Microscopy and microanalysis : the official journal of Microscopy Society of America, Microbeam Analysis Society, Microscopical Society of Canada     Volume:  -     ISSN:  1435-8115     ISO Abbreviation:  Microsc. Microanal.     Publication Date:  2013 Jan 
Date Detail:
Created Date:  2013-1-7     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9712707     Medline TA:  Microsc Microanal     Country:  -    
Other Details:
Languages:  ENG     Pagination:  1-9     Citation Subset:  -    
Vanderbilt University School of Medicine, Department of Molecular Physiology and Biophysics, Nashville, TN 37232-0615, USA.
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