|Message: Re: Negative number of interaction length warning with GEANT4.10.1||Not Logged In (login)|
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OK, I had a look at example GB01, and modified my code accordingly. Apparently, there are some subtle changes when going from GEANT4.10.0 to GEANT4.10.1. Now the warnings disappeared. This is what I did to my BiasingOperator-code used to configure and select the biasing operation (corresponds to GB01BOptrChangeCrossSection.cc in the GB01 example): a) add the "G4InteractionLawPhysical.hh" include file b) moved the "Setup stage" to a dedicated "StartRun" method (and include definition in the .hh-file as "virtual void StartRun();") c) Added the line "operation->UpdateForStep( 0.0 ); " at the end of the "ProposeOccurenceBiasingOperation" method. Thanks for the quick response and the solution. Stefan