[Gate-users] Overlap between scanner geometry and Voxellized phantom

[Ravindranath, Bosky]

Hello Gate users,
 
I'm using voxellized phantoms to test my scanner performance, however due to the positioning of the scanner, there is bound to be overlapping regions between the scanner and the image that is read in as the phantom. The regions in the phantom that overlap with the scanner has material properties set to vacuum. When I run my simulations, I do not see any gamma interactions with the overlapping detector regions. Is there a way to work around this? I tried to define the scanner as a daughter of the phantom, GATE did not allow me to do that (I set the type as parameterized box matrix), I tried defining the phantom first and then the geometry, but the result was the same.
 
Any suggestions appreciated.
Thank you,
Bosky