Model for TEM Samples for EM Simulations
- Practical Electron Microscopy and Database -
- An Online Book -

http://www.globalsino.com/EM/  



 

 

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The TEM sample is usually described by a projected potential model where the atomic potentials will modify the phase (and only the phase) of the wave of the incident electrons as the electrons passes through the material, which is represented by the phase object approximation (POA). When the specimen is thin and thus the phase change is small, this model can be further simplified by the weak phase object approximation (WPOA), which is a linear approximation.

 

 

 

 

 

 

 

 

 

 

 

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