منابع مشابه
Prospects for versatile phase manipulation in the TEM: beyond aberration correction.
In this paper we explore the desirability of a transmission electron microscope in which the phase of the electron wave can be freely controlled. We discuss different existing methods to manipulate the phase of the electron wave and their limitations. We show how with the help of current techniques the electron wave can already be crafted into specific classes of waves each having their own pec...
متن کاملChromatic Aberration Correction for Atomic Resolution TEM Imaging from 20 to 80 kV.
Atomic resolution in transmission electron microscopy of thin and light-atom materials requires a rigorous reduction of the beam energy to reduce knockon damage. However, at the same time, the chromatic aberration deteriorates the resolution of the TEM image dramatically. Within the framework of the SALVE project, we introduce a newly developed C_{c}/C_{s} corrector that is capable of correctin...
متن کاملHigh-resolution TEM and the application of direct and indirect aberration correction.
Aberration correction leads to a substantial improvement in the directly interpretable resolution of transmission electron microscopes. Correction of the aberrations has been achieved electron-optically through a hexapole-based corrector and also indirectly by computational analysis of a focal or tilt series of images. These direct and indirect methods are complementary, and a combination of th...
متن کاملAn Aberration Corrected (S)TEM Microscope for Nanoresearch
S. Kujawa, B. Freitag, D. Hubert FEI Company, Eindhoven, The Netherlands [email protected] Introduction The continued focus on improving materials, combined with the fact that it is now commonly understood that material properties are affected by characteristics at the atomic level, give rise to the need to characterize and image at the best resolutions possible. The (Scanning) Transmiss...
متن کاملNeural compensation for the best aberration correction.
We use adaptive optics (AO) to study whether neural adaptation influences the amount of higher order aberration correction that produces the best subjective image quality. Three subjects performed two tasks, method of adjustment and matching, while viewing a monochromatic stimulus through the Rochester AO system. In both tasks, after correcting the subject's lower order aberrations with trial l...
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ژورنال
عنوان ژورنال: Materials Today
سال: 2004
ISSN: 1369-7021
DOI: 10.1016/s1369-7021(04)00571-1