[gate-users] Bi-modality in one simulation

[Fernando Rannou]

Hi,
I remember one user told me that he could not
attach two separate sensitive crystals. Is that true?

Fernando


On Wed, 2005-11-09 at 22:45 +0100, Sophie Kerhoas wrote:
> Hello Thomas,
>   I suppose that you need to record the hit informations of your additional
> box so this box should be declared as a crystalID and be attached to a level
> of a system. In order to be attached to the system of the mu-PET, the volume
> of this box should be a daughter of some existing volume of this
> mu-PET...and this is probably not the case. It seems that your box is close
> to the mu-PET but not inside. The best solution would be to rebuilt the
> geometry of the mu-PET in order to add a level for your box (but the box
> don’t have probably the same repetition than the detector heads of the
> mu-PET, so this can be not an easy task...)
> 
> There is perhaps another solution but I have never tested it (so I don't
> know if it can work). The world can have 2 different daughters which are two
> different systems. But you will have to make your own digitizer after the
> simulation combining the hits from the two systems.
> If you want, we can discuss by phone (01 69 08 33 68) it can be easier.
> Hope that can help :-)
> Sophie
> 
> 
> -----Message d'origine-----
> De : gate-users-bounces at lphe1pet1.epfl.ch
> [mailto:gate-users-bounces at lphe1pet1.epfl.ch] De la part de Thomas Carlier
> Envoyé : mardi 8 novembre 2005 19:01
> À : gate-users at lphe1pet1.epfl.ch
> Objet : [gate-users] Bi-modality in one simulation
> 
> Dear all,
> 
> Just a basic question concerning the possibility to simulate two types 
> of detector in one simulation.
> Is it possible to attach two different geometries (say a cylindricalPET 
> + a box for instance) with each a different detection medium ?
> 
> We would like to add to an already simulated µPET device a new detection 
> medium whose geometry is defined as a box and coupled to one side of the 
> µPET.
> My question is basically, is it possible to perform such a simulation 
> without too much effort (i.e. by adding a specific class or deriving an 
> existing class) ?
> 
> Thank you so much for your help
> 
> 
> Thomas Carlier
> University Hospital
> Nuclear Medicine Dept
> Nantes, France
> 
> 
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> 
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