|Message: Re: Quite big disagreement of neutron moderate between MCNP and Geant4||Not Logged In (login)|
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Thank you so much for all the helpful answers. My mistake is I used "G4Element* D = new G4Element("TS_D_of_Heavy_Water", "D", 1., 2.00158*g/mole);" to define heavy water, which is wrong.
Now I use G4Isotope* H2 = new G4Isotope("H2", 1, 2); G4Element* elD = new G4Element("TS_D_of_Heavy_Water", "D", 1); elD->AddIsotope(H2, 100*perCent); and it gives me similar results with MCNP
All your enthusiastic discussion are highly appreciated! All the best!