|Message: Re: QGSP_BERT_HP time cut for neutrons||Not Logged In (login)|
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I am not sure about the command but this is what I do in my code:
1) In main Function
G4VModularPhysicsList* modPhysicsList; modPhysicsList=new FTFP_BERT_HP; modPhysicsList->RegisterPhysics(new SpecialCutsBuilder()); runManager->SetUserInitialization(modPhysicsList);
2) Get the SpecialCutsBuilder class from the website (google it). In this class it attaches G4UserSpecialCuts() to the pasrticle of interest. In this case is neutrons.
3)In your constructor, assign what logical volume to apply cuts
NOTICE when assigning G4UserLimits to a logical volume, it will not propagate to daughter volumes. If you have daughter volumes in the logical volume and you want to propagate the UsrLimits to those volumes, use a G4Region then.
I hope this helps,