[Gate-users] 1

[wisteria]

Dear Gate Users,


Here, I encountered a problem when using Gate to simulate a PET system. The geometry of this system is a regular pentagon. When a point source is positioned at the center of the pentagon, the trajectory is reasonable, as shown in figure 1, while, if the point source is positioned far from the center, the trajectory is very strange, as shown in figure 2. So, I wonder if there are some limitations to collect coincidences. i.e. there is no coincidence between adjacent resectors. Hope someone can help me. Thanks. I'm looking forward to receiving any message.


Best regards
Gardenia



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