Electron microscopy
Beer’s Law for EDS Measurement
- Practical Electron Microscopy and Database -
- An Online Book -
Microanalysis | EM Book                                                                                   http://www.globalsino.com/EM/        

This book (Practical Electron Microscopy and Database) is a reference for TEM and SEM students, operators, engineers, technicians, managers, and researchers.


Beer’s law is given by the fraction (I/I0) of x-rays transmitted through a thickness x,

        Beer’s law ----------------------------------------- [3116]
         x -- The thickness of a material.
         ρ -- The atomic density of the material.
         μ/ρ -- The mass absorption coefficient.

In EDS measurements, the path of X-ray absorption mainly depends on two factors:
         i) The depth of x-ray generation in the specimen.
         ii) The take-off angle.



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