How to approximate a maxwell-Boltzman distribution for the secondary electrons emitted from the surface.?

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Alireza Zaeem

It depends on the density of electrons. If it is more than a value that you can search it, you have to use Fermi Dirac distribution instead of Maxwell boltzmsn distribution function.

Salman Hamza Hussein Aiash

you can solve Boltzmann equation near the surface with boundary condition. i mean you must find electron distribution function near the surface. so the distance near the surface mean several times of mean free path of secondary electron