|Message: Re: UserSteppingAction : getting copy number||Not Logged In (login)|
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On Fri, 18 Jul 2014 20:20:36 GMT, Gumplinger Peter wrote:
> > I naively thought that each gamma produced from the annihilation event > > would have a unique identifier that is preserved as that gamma goes > > through multiple interactions. > > This assumption is risky. I think it's true for Compton scattering. > Stepping verbose should tell you. >
Right. Compton scattering is the only case where incident gamma is scattered, keeping its identity. In other processes (e.g.. photo effect and e+,e- creation) the incident gamma is destroyed.
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