[Gate-users] Before and After Collimator

[Carlos Uribe]

Hello everyone,

I want to understand how different collimators affect what my camera
detects gammas.

I want to run a simulation in which there's no collimator present and then
add some collimators and see how it changes.

One way of doing this would be by running the simulation N+1 times where N
is the number of different collimators.  I think this is time consuming
and, although the spectrum should be similar, there might be differences
due to the different random numbers, etc.

Is there a way of running a simulation without the collimator, somehow save
the spectrum, add the collimator and tell GATE to load the previous
spectrum and see how it changes?


Thank you very much in advance,

-- 
Carlos F Uribe
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