[Gate-users] Problem with optical photons

[唐晓]

Hi, Gate-users,

I am now trying to do some optical simulations, and a problem occurred to
me.

when I tried to run the example_OPTICAL, error comes out:

[G4-cerr] ***** COMMAND NOT FOUND </gate/pixel/surfaces/name teflonsurf>
*****
[Gate] Sorry, error in a macro command : abort.

I have already uncomment "export GATE_USE_OPTICAL=1" in env_gate.sh,
and when echo $GATE_USE_OPTICAL, it comes out 1.

I feel confused about the problem. If there is someone who knows how to
solve it, I will appreciate it and thank you very much.