Journal
MICROSCOPY AND MICROANALYSIS
Volume 12, Issue 6, Pages 483-491Publisher
CAMBRIDGE UNIV PRESS
DOI: 10.1017/S1431927606060570
Keywords
aberration-corrected scanning transmission electron microscopy; high-angle annular dark-field imaging; single atom imaging; atomic resolution
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The resolution-limiting aberrations of round electromagnetic lenses can now be successfully overcome via the use of multipole element aberration correctors. The installation and performance of a hexapole-based corrector (CEOS GmbH) integrated on the probe-forming side of a JEOL 2200FS FEG STEM/TEM is described. For the resolution of the microscope not to be severely compromised by its environment, a new, specially designed building at Oak Ridge National Laboratory has been built. The Advanced Microscopy Laboratory was designed with the goal of providing a suitable location for aberration-corrected electron microscopes. Construction methods and performance of the building are discussed in the context of the performance of the microscope. Initial performance of the microscope on relevant specimens and modifications made to eliminate resolution-limiting conditions are also discussed.
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