Image simulation for electron energy loss spectroscopy.
Micron
; 39(6): 676-84, 2008 Aug.
Article
en En
| MEDLINE
| ID: mdl-18060796
ABSTRACT
Aberration correction of the probe forming optics of the scanning transmission electron microscope has allowed the probe-forming aperture to be increased in size, resulting in probes of the order of 1 A in diameter. The next generation of correctors promise even smaller probes. Improved spectrometer optics also offers the possibility of larger electron energy loss spectrometry detectors. The localization of images based on core-loss electron energy loss spectroscopy is examined as function of both probe-forming aperture and detector size. The effective ionization is nonlocal in nature, and two common local approximations are compared to full nonlocal calculations. The affect of the channelling of the electron probe within the sample is also discussed.
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Colección:
01-internacional
Banco de datos:
MEDLINE
Asunto principal:
Procesamiento de Imagen Asistido por Computador
/
Espectroscopía de Pérdida de Energía de Electrones
Idioma:
En
Revista:
Micron
Asunto de la revista:
DIAGNOSTICO POR IMAGEM
Año:
2008
Tipo del documento:
Article
País de afiliación:
Estados Unidos