SEM Nano: An Electron Wave Optical Simulation for the Scanning Electron Microscope.
Microsc Microanal
; : 1-13, 2022 Feb 22.
Article
em En
| MEDLINE
| ID: mdl-35190009
ABSTRACT
The simulation program "SEM Nano" is introduced to explain and visualize probe formation in field-emission scanning electron microscopes (SEMs). The program offers an easy and intuitive graphical user interface (GUI) to provide input in terms of understandable SEM parameters and visualization of the output. The simulations are based on wave optics treatment of the electron beam in the SEM column. Based on input parameters provided by the user, the spatial intensity distribution of electrons is calculated at the specimen by incorporating the effects of diffraction, aberrations, coherence, and noise. Given the specimen structure signal (So), the program has the capability to produce an image of the specimen using the electron probe intensity distribution. Finally, a feature is provided to reconstruct the electron probe intensity from the noisy image using a Wiener filter-based deconvolution.
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Idioma:
En
Revista:
Microsc Microanal
Ano de publicação:
2022
Tipo de documento:
Article
País de afiliação:
Estados Unidos