[Gate-users] [Gate-devel] Can voxlelized and non-voxelized phantoms be simulated together?

Niklas Rehfeld rehfeld at imnc.in2p3.fr
Thu Jun 4 09:10:37 CEST 2009

Hi Yu,

On Thu, 04 Jun 2009 01:14:37 +0200, Chen, Yu <Yu.Chen at umassmed.edu> wrote:

> Hi,
> Does anyone have experience simulating voxelized and non-voxelized  
> phantoms together with non-voxelized phantom embedded in voxelized  
> phantom?
> It seems there is no complaint for GATE for doing so. But I still could  
> not see the non-voxelized phantom.

Geant4 doesn't allow for overlaps of volumes, i.e. if you place a  
non-voxelized phantom in a voxelized phantom the outcome is undefined.
To my knowledge logic operations between voxelized and non-voxelized  
phantoms are not possible.
For fictitious volumes I can tell you for sure that it doesn't work.
It might work for the sources (I would guess that they are added).

Hope this helps,


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