[Gate-users] Problem with the command "Forbid" in GATE 6.

[Lucas Diovani Lopes Narciso]

 Hi,

I am a physics student and work with Dr. Ana Marques and Claudia Brambilla in
Brazil.
Currently in our group we're moving from GATE 5 to version 6.
I'm trying to simulate using GATE version 6.
I'm simulating the geometrical Carlson phantom filled with water, and my
source is the
water. The Carlson phantom has several acrylic spheres.
I need to cut the acrylic spheres inside the source and I saw that GATE 6
has in the manual the command:

"/gate/source/SOURCE_NAME/gps/Forbid PORTION_NAME"

I have tried with this command but it didn't work.

Does anybody have a suggestion to solve this problem?

Best regards,
Lucas Narciso.