Gabriele Cosmo
110 lines
4.2 KiB
C++
110 lines
4.2 KiB
C++
//
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// ********************************************************************
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// * DISCLAIMER *
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// * *
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// * The following disclaimer summarizes all the specific disclaimers *
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// * of contributors to this software. The specific disclaimers,which *
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// * govern, are listed with their locations in: *
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// * http://cern.ch/geant4/license *
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// * *
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// * Neither the authors of this software system, nor their employing *
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// * institutes,nor the agencies providing financial support for this *
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// * work make any representation or warranty, express or implied, *
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// * regarding this software system or assume any liability for its *
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// * use. *
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// * *
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// * This code implementation is the intellectual property of the *
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// * GEANT4 collaboration. *
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// * By copying, distributing or modifying the Program (or any work *
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// * based on the Program) you indicate your acceptance of this *
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// * statement, and all its terms. *
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// ********************************************************************
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//
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//
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// $Id: G4StatMFMacroTriNucleon.cc,v 1.4 2005/06/04 13:27:49 jwellisc Exp $
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// GEANT4 tag $Name: geant4-07-01 $
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//
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// Hadronic Process: Nuclear De-excitations
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// by V. Lara
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#include "G4StatMFMacroTriNucleon.hh"
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// Operators
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G4StatMFMacroTriNucleon & G4StatMFMacroTriNucleon::
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operator=(const G4StatMFMacroTriNucleon & )
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{
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throw G4HadronicException(__FILE__, __LINE__, "G4StatMFMacroTriNucleon::operator= meant to not be accessable");
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return *this;
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}
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G4bool G4StatMFMacroTriNucleon::operator==(const G4StatMFMacroTriNucleon & ) const
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{
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throw G4HadronicException(__FILE__, __LINE__, "G4StatMFMacroTriNucleon::operator== meant to not be accessable");
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return false;
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}
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G4bool G4StatMFMacroTriNucleon::operator!=(const G4StatMFMacroTriNucleon & ) const
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{
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throw G4HadronicException(__FILE__, __LINE__, "G4StatMFMacroTriNucleon::operator!= meant to not be accessable");
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return true;
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}
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G4double G4StatMFMacroTriNucleon::CalcMeanMultiplicity(const G4double FreeVol, const G4double mu,
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const G4double nu, const G4double T)
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{
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const G4double ThermalWaveLenght = 16.15*fermi/std::sqrt(T);
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const G4double lambda3 = ThermalWaveLenght*ThermalWaveLenght*ThermalWaveLenght;
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const G4double degeneracy = 2.0+2.0; // H3 + He3
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const G4double Coulomb = (3./5.)*(elm_coupling/G4StatMFParameters::Getr0())*
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(1.0 - 1.0/std::pow(1.0+G4StatMFParameters::GetKappaCoulomb(),1./3.));
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const G4double BindingE = G4NucleiPropertiesTable::GetBindingEnergy(1,theA); // old value was 9.224*MeV
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// + G4NucleiProperties::GetBindingEnergy(2,theA);
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G4double exponent = (BindingE+ theA*(mu+nu*theZARatio) -
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Coulomb*theZARatio*theZARatio*std::pow(static_cast<G4double>(theA),5./3.))/T;
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if (exponent > 700.0) exponent = 700.0;
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_MeanMultiplicity = (degeneracy*FreeVol*static_cast<G4double>(theA)*
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std::sqrt(static_cast<G4double>(theA))/lambda3)*
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std::exp(exponent);
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return _MeanMultiplicity;
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}
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G4double G4StatMFMacroTriNucleon::CalcEnergy(const G4double T)
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{
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const G4double Coulomb = (3./5.)*(elm_coupling/G4StatMFParameters::Getr0())*
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(1.0 - 1.0/std::pow(1.0+G4StatMFParameters::GetKappaCoulomb(),1./3.));
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return _Energy = -G4NucleiPropertiesTable::GetBindingEnergy(1,theA) +
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Coulomb * theZARatio * theZARatio * std::pow(static_cast<G4double>(theA),5./3.) +
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(3./2.) * T;
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}
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G4double G4StatMFMacroTriNucleon::CalcEntropy(const G4double T, const G4double FreeVol)
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{
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const G4double ThermalWaveLenght = 16.15*fermi/std::sqrt(T);
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const G4double lambda3 = ThermalWaveLenght*ThermalWaveLenght*ThermalWaveLenght;
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G4double Entropy = 0.0;
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if (_MeanMultiplicity > 0.0)
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Entropy = _MeanMultiplicity*(5./2.+
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std::log(4.0*static_cast<G4double>(theA)*
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std::sqrt(static_cast<G4double>(theA))*FreeVol/(lambda3*_MeanMultiplicity)));
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return Entropy;
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}
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