|Message: Re: Error: local time goes back!!||Not Logged In (login)|
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Thanks a lot for your note. I tried it, but it gives a compilation error (ProposeMomentumDirection is not a member of G4VParticleChange class). When I change it as (aParticleChange.ProposeMomentumDirection(direction)), it's complied, but when running my code, the same error of "local time goes back!" comes up. I don't know when I am changing the momentum direction (actually just the polar angle of the particle direction) by this process, Geant4 calculates all other correlated parameters (such as the deposited energy and momentum conservation, momentum unit vector, etc) by itself according to the direction change?
I really appreciate any comments. Soman
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