[gate-users] voxelised source position

[Galluccio Ludovic]

Dear alls,
   
  another question about voxelised source :
  I've read the gate user guide section voxelised source and it's specified that the source must be translated of its half dimensions on negative way.
   
  In my situation, my source has the same dimensions that my phantom (matrix of 80x80x270 voxels and the pixel size is 0.4 mm), ie my source has the  following dimensions : 3.2x3.2x10.8 cm
   
  This translation is specified with the setPosition command for the source.
  I think that in my case I have to put the following parameters : 
   
  /gate/source/My_source/setPosition -1.6 -1.6 -5.4 cm
   
  Is it right or not? 
   
  I have some doubts.
   
  Best regards,
   
  Ludovic
   

		
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