TRT Electron Radiation: Transition Between Refractive Indices

[ChrisVer]

How can the radiation of electrons in the TRT be described/explained with transition between media of different refractive indices?

 

[Vanadium 50]

Did you look at https://en.wikipedia.org/wiki/Transition_radiation and references therein? What part didn't you understand?

 

[ChrisVer]

Did you look at https://en.wikipedia.org/wiki/Transition_radiation and references therein? What part didn't you understand?

the wikipedia does not refer to refractive indices, but rather talks of inhomogeneous media.

 

[Vanadium 50]

he wikipedia does not refer to refractive indice

But it does refer to dielectric constants. Do you know the relationship between refractive index and dielectric constant?