[Gate-users] energy of each incident photon

[Cheng Xu]

Dear all,

Does anyone know how to obtain the energy of each incident photon (originally emitted by the source before interaction with the detector )? I know in .root, there is a variable '''energy'' in Singles tree, and from that one can know the energy of each recorded event, but seems there is no variable for the original energy of each incident photon.

Thanks in advance!

Cheng