Experimental evaluation of a spherical aberration-corrected TEM and STEM.
2005
We have successfully developed a spherical aberration (C s )-corrected electron microscope for probe- and image-forming systems using hexapole correctors. The performance of the microscope has been evaluated experimentally. The point resolution attained using the image-forming C s -corrector is better than 0.12 nm. For scanning transmission electron microscopy, the Ronchigram flat area was >40 mrad in half-angle using the probe-forming C s -corrector.
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