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Forum: Biasing and Scoring
Date: 03 Nov, 2016
From: Alfredo Castaneda <Alfredo Castaneda>

Dear experts

I am wondering if there is a way to set a minimum step size, I know we can set maximum step size with UserLimits function.

I am creating a geant4 simulation that takes into account a muon gun that enters a gas sensitive region and I want to explore the number of primary electrons generated by ionization, As the steps are defined by geant4 I would like to get a handle how to get the number of primary electrons generated? wihtout being affected by the default step selection.

Also I am using the following PhysicsList

 G4VUserPhysicsList* physics = new FTFP_BERT_HP();

which I am not sure if is ideal for the simulation of ionization processes, or I need to make my custom physics list? Any recommendation on that?

Thanks.

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