00001 // 00002 // ******************************************************************** 00003 // * License and Disclaimer * 00004 // * * 00005 // * The Geant4 software is copyright of the Copyright Holders of * 00006 // * the Geant4 Collaboration. It is provided under the terms and * 00007 // * conditions of the Geant4 Software License, included in the file * 00008 // * LICENSE and available at http://cern.ch/geant4/license . These * 00009 // * include a list of copyright holders. * 00010 // * * 00011 // * Neither the authors of this software system, nor their employing * 00012 // * institutes,nor the agencies providing financial support for this * 00013 // * work make any representation or warranty, express or implied, * 00014 // * regarding this software system or assume any liability for its * 00015 // * use. Please see the license in the file LICENSE and URL above * 00016 // * for the full disclaimer and the limitation of liability. * 00017 // * * 00018 // * This code implementation is the result of the scientific and * 00019 // * technical work of the GEANT4 collaboration. * 00020 // * By using, copying, modifying or distributing the software (or * 00021 // * any work based on the software) you agree to acknowledge its * 00022 // * use in resulting scientific publications, and indicate your * 00023 // * acceptance of all terms of the Geant4 Software license. * 00024 // ******************************************************************** 00025 // 00026 // 00027 00028 #include "G4NuclearFermiDensity.hh" 00029 #include "G4PhysicalConstants.hh" 00030 #include "G4SystemOfUnits.hh" 00031 00032 G4NuclearFermiDensity::G4NuclearFermiDensity(G4int anA, G4int /*aZ*/) 00033 : theA(anA), a(0.545 * fermi) 00034 { 00035 const G4double r0 = 1.16 * (1. - 1.16 * std::pow(G4double(anA), -2./3.)) * fermi; 00036 theR = r0 * std::pow(anA, 1./3.); 00037 Setrho0(3./ (4.*pi * std::pow(r0,3.) * theA * (1. + sqr(a/theR)*pi2 ))); 00038 } 00039 00040 G4NuclearFermiDensity::~G4NuclearFermiDensity() {} 00041