[Gate-users] Overlaping problem

[Gilberto Almeida]

 Thank you, that solved my problem.

 By the way, the two cones are for a pinhole, inserted in a lead collimator.
If I put the cones in a box of air, the pinhole will desapeare and the box
will be the hole in the colimator. By the ohter side, if I define the
material of the box as lead, the collimator will be thicker in the part that
isn't pinhole... I don't know if I'm making myself clear... The point is: if
I don't define any material for this box, wil it become like a "ghost" in
the geometry (I would like so), or GATE will assume a material for it?

 Once again, thank you for the help

Gilberto Almeida Instituto de Biofísica e Engenharia Biomédica
Faculdade de Ciências da Universidade de Lisboa
Campo Grande
1749-016 Lisboa, Portugal
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