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On Mon, 10 Oct 2016 14:14:21 GMT, Hubert Chiron wrote:
> If I want to see the pressure I do in my TrackingAction.cc > > G4double pressure = > myTrack->GetVolume()->GetLogicalVolume->GetMaterial()->GetPressure() > > and I find > pressure = 6.32421e+08 > > why ?
Because you're looking at Geant4's internal units, where MeV=1, mm=1, and so on. If you want to see the pressure printed out in human readable units, you can do
G4cout << pressure/hep_pascal << " Pa" << G4endl;
G4cout << G4BestUnit(pressure) << G4endl;
Notice that in your example, you don't specify a pressure for the material, so you're getting whatever the default is (which I think is 1 atmosphere). And of course pressure doesn't really apply to a solid.
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