[Gate-users] Defining a Cold Source

[Nicolas GUIGNARD]

Hello
I would like to know about defining a cold source in PET simulation. Its
said in documentation to define source and some activity after this
use FORBID command. BUT if we define ZERO activity in the source *then* *Will
it be same cold source without using forbid command??*
*or there will be any difference in simulation result??*
**
Thanks
regards
Nicolas