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Forum: Processes Involving Optical Photons
Re: None Untitled (Victor)
Date: 05 Jul, 2011
From: Gumplinger Peter <Gumplinger Peter>

Hi Victor,

> I ran into the problem, when I started checking which particle creates
> opticalphotons and which process generates it. First it looks like that if I
> don't include Ionization process, then I don't get scintilaltion. Is it
> supposed to be this way or not???

Yes, it is supposed to be this way.

> Could please someone explain this
> connection between scintillation and ionization.

Scintillation is the repsonse of some materials to energy deposited in it by a particle. 511 keV gamma particles don't deposit any energy until they undergo an interaction in the material at which point an energetic electron is created. It is this energetic electron which loses energy by ionization to the material and hence causes it to scintillate.

> Also, I expected gamma produce opticalphotons instead of electrons. Is it
> correct or not???

Not correct, see above.

Peter

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