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Forum: Geometry
Re: Question density definition (Leila Moghadasi)
Re: None Re: density definition (John Allison)
Re: None Re: density definition (Leila Moghadasi)
Date: 19 Sep, 2012
From: Michael H. Kelsey <Michael H. Kelsey>

On Thu, 20 Sep 2012 00:17:43 GMT, Leila Moghadasi wrote:
> Dear John, Thank you for your help. I put
> "G4cout<<"Density:"<<density/(g/cm3)<<"g/cm3"<<G4endl;" and the density
> was printed correctly. I though still don't understand in what way
> electron charge is related to the density ?! thanks, Leila

Because GEANT4's natural units are energy (mass = J s^2/m^2) in MeV, and the charge of the electron.

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