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A new way of measuring microscope aberrations
MedLine Citation:
PMID:  10998789     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
Two-fold astigmatism, three-fold astigmatism and misalignment (coma) can be found from the orientations only of the diffractograms of a set of images with injected beam tilts--typically eight images with tilts of equal magnitude and azimuths 45 degrees apart. The spherical aberration must be determined independently, and the defocus is not measured; however, the measurement required is very much simpler than the measurement of image displacements or induced defocus/astigmatism values, and no calibration of the microscope magnification is needed.
Authors:
Saxton
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Publication Detail:
Type:  JOURNAL ARTICLE    
Journal Detail:
Title:  Ultramicroscopy     Volume:  81     ISSN:  1879-2723     ISO Abbreviation:  Ultramicroscopy     Publication Date:  2000 Mar 
Date Detail:
Created Date:  2000-09-20     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  7513702     Medline TA:  Ultramicroscopy     Country:  NETHERLANDS    
Other Details:
Languages:  Eng     Pagination:  41-5     Citation Subset:  -    
Affiliation:
Department of Materials Science and Metallurgy, University of Cambridge, UK. wos1@cam.ac.uk
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