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On Mon, 03 Dec 2018 01:01:44 GMT, Kyuwon Jung wrote:
> Dear All experts, > > Hello experts. I am trying to get a time of a track of protons, so I put > the following code > > >> G4double LocaTime = aStep->GetTrack()->GetLocalTime(); > >> G4cout << "LocalTime:" << LocalTime/second << G4endl; > >> > >> G4double ProperTime = aStep->GetTrack()->GetProperTime(); > >> G4cout << "ProperTime:" << ProperTime/second << G4endl; > > But I have no idea what is a difference between "Local Time" and "Proper > Time". > > Could anyone teach me what the difference is? > > Thank you, > > Kyuwon Jung. >
LocalTime is the time of life of a particle since its creation, expressed in the laboratory frame. ProperTime is the same thing, expressed in the at rest frame of that particle.