[Gate-users] comptonPhantom

[Simon Stute]

Hi Paola,

comptonPhantom is the variable containing the number of Compton interactions
that occured in every volume declared as phantomSD. And comptonCrystal is
the one containing the number of Compton interactions that occured in every
volume declared as crystalSD. And no matter when (before or after which
one...).

Hope it helps,
Simon

2008/3/27, Paola Solevi <Paola.Solevi at mib.infn.it>:
>
> Dear Gate users,
> in my simulation set-up I have an Aluminum box that contains the crystal
> matrix.
> Since I'm interested in studying the effect of the Al box on the detected
> signal, I set the Al box as PhantomSD.
> Is is true that the "comptonPhantom" flag gives the number of Compton
> intractions experienced by the photon _before_ reaching the CrystalSD?
>
> What happens if I have a first Compton in the crystal, a second
> Compton in the Aluminium box and again a third interaction in the crystal?
>
> Because what I found is that if I set the Aluminium box as made of Air,
> the sensitivity (number of detected events with comptonPhantom==0) is
> higher than the one of the housing made of Al.
> And this can occur if comptonPhantom!=0 also when I have a first hit in
> the crystal.
>
> Thank you for your help,
> best regards
>         Paola
>
> _______________________________________________
> Gate-users mailing list
> Gate-users at lists.healthgrid.org
> http://lists.healthgrid.org/mailman/listinfo/gate-users
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.opengatecollaboration.org/mailman/private/gate-users/attachments/20080328/0f205087/attachment.htm>