Import Geant4 6.2.0 source tree
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Gabriele Cosmo
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//
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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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//
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// MODULE: G4SPSEneDistribution.hh
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//
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// Version: 1.0
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// Date: 5/02/04
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// Author: Fan Lei
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// Organisation: QinetiQ ltd.
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// Customer: ESA/ESTEC
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//
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///////////////////////////////////////////////////////////////////////////////
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//
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// CHANGE HISTORY
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// --------------
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//
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//
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// Version 1.0, 05/02/2004, Fan Lei, Created.
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// Based on the G4GeneralParticleSource class in Geant4 v6.0
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//
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///////////////////////////////////////////////////////////////////////////////
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//
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//
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// Class Description:
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//
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// To generate the energy of a primary vertex according to the defined distribution
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//
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///////////////////////////////////////////////////////////////////////////////
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//
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// MEMBER FUNCTIONS
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// ----------------
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//
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// G4SPSEneDistribution ()
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// Constructor: Initializes variables
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//
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// ~G4SPSEneDistribution ()
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// Destructor:
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//
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// void SetEnergyDisType(G4String)
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// Allows the user to choose the energy distribution type. The arguments
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// are Mono (mono-energetic), Lin (linear), Pow (power-law), Exp
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// (exponential), Gauss (gaussian), Brem (bremsstrahlung), BBody (black-body), Cdg
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// (cosmic diffuse gamma-ray), User (user-defined), Arb (arbitrary
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// point-wise), Epn (energy per nucleon).
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//
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// void SetEmin(G4double)
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// Sets the minimum energy.
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//
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// void SetEmax(G4double)
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// Sets the maximum energy.
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//
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// void SetMonoEnergy(G4double)
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// Sets energy for mono-energetic distribution.
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//
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// void SetAlpha(G4double)
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// Sets alpha for a power-law distribution.
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//
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// void SetTemp(G4double)
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// Sets Temperature for a Brem or BBody distributions.
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//
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// void SetEzero(G4double)
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// Sets Ezero for an exponential distribution.
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//
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// void SetGradient(G4double)
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// Sets gradient for a linear distribution.
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//
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// void SetInterCept(G4double)
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// Sets intercept for a linear distribution.
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//
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// void UserEnergyHisto(G4ThreeVector)
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// Allows user to defined a histogram for the energy distribution.
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//
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// void ArbEnergyHisto(G4ThreeVector)
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// Allows the user to define an Arbitrary set of points for the
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// energy distribution.
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//
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// void EpnEnergyHisto(G4ThreeVector)
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// Allows the user to define an Energy per nucleon histogram.
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//
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// void Calculate()
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// Controls the calculation of Integral PDF for the Cdg and BBody
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// distributions.
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//
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// void InputEnergySpectra(G4bool)
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// Allows the user to choose between momentum and energy histograms
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// for user-defined histograms and arbitrary point-wise spectr.
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// The default is true (energy).
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//
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// void InputDifferentialSpectra(G4bool)
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// Allows the user to choose between integral and differential
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// distributions when using the arbitrary point-wise option.
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//
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// void ArbInterpolate(G4String)
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// ArbInterpolate allows the user to specify the type of function to
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// interpolate the Arbitrary points spectrum with.
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//
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// void SetBiasRndm (G4SPSRandomGenerator* a)
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// Sets the biased random number generator
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//
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// G4double GenerateOne(G4ParticleDefinition*);
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// Generate one random energy for the specified particle
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//
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// void ReSetHist(G4String);
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// Re-sets the histogram for user defined distribution
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//
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// void SetVerbosity(G4int)
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// Sets the verbosity level.
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//
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///////////////////////////////////////////////////////////////////////////////
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#ifndef G4SPSEneDistribution_h
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#define G4SPSEneDistribution_h 1
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#include "G4PhysicsOrderedFreeVector.hh"
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#include "G4ParticleMomentum.hh"
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#include "G4ParticleDefinition.hh"
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#include "G4DataInterpolation.hh"
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//
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#include "G4SPSRandomGenerator.hh"
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class G4SPSEneDistribution
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{
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public:
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G4SPSEneDistribution ();
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~G4SPSEneDistribution ();
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void SetEnergyDisType(G4String);
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inline G4String GetEnergyDisType() {return EnergyDisType;};
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void SetEmin(G4double);
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inline G4double GetEmin() {return Emin;} ;
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inline G4double GetArbEmin() {return ArbEmin;} ;
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void SetEmax(G4double);
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inline G4double GetEmax() {return Emax;} ;
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inline G4double GetArbEmax() {return ArbEmax;};
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void SetMonoEnergy(G4double);
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void SetAlpha(G4double);
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void SetTemp(G4double);
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void SetBeamSigmaInE(G4double);
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void SetEzero(G4double);
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void SetGradient(G4double);
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void SetInterCept(G4double);
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void UserEnergyHisto(G4ThreeVector);
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void ArbEnergyHisto(G4ThreeVector);
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void EpnEnergyHisto(G4ThreeVector);
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void InputEnergySpectra(G4bool);
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void InputDifferentialSpectra(G4bool);
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void ArbInterpolate(G4String);
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inline G4String GetIntType() {return IntType;};
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void Calculate();
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//
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void SetBiasRndm(G4SPSRandomGenerator* a) {eneRndm = a; };
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// method to re-set the histograms
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void ReSetHist(G4String);
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// Set the verbosity level.
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void SetVerbosity(G4int a) {verbosityLevel = a; } ;
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//x
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G4double GenerateOne(G4ParticleDefinition*);
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private:
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void LinearInterpolation();
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void LogInterpolation();
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void ExpInterpolation();
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void SplineInterpolation();
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void CalculateCdgSpectrum();
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void CalculateBbodySpectrum();
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// The following methods generate energies according to the spectral
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// parameters defined above.
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void GenerateMonoEnergetic();
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void GenerateLinearEnergies(G4bool);
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void GeneratePowEnergies(G4bool);
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void GenerateExpEnergies(G4bool );
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void GenerateGaussEnergies();
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void GenerateBremEnergies();
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void GenerateBbodyEnergies();
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void GenerateCdgEnergies();
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void GenUserHistEnergies();
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void GenEpnHistEnergies();
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void GenArbPointEnergies();
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// converts energy per nucleon to energy.
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void ConvertEPNToEnergy();
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private:
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G4String EnergyDisType; // energy dis type Variable - Mono,Lin,Exp,etc
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G4double MonoEnergy; //Mono-energteic energy
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G4double SE ; // Standard deviation for Gaussion distrbution in energy
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G4double Emin, Emax; // emin and emax
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G4double alpha, Ezero, Temp; // alpha (pow), E0 (exp) and Temp (bbody,brem)
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G4double grad, cept; // gradient and intercept for linear spectra
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G4bool EnergySpec; // true - energy spectra, false - momentum spectra
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G4bool DiffSpec; // true - differential spec, false integral spec
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G4bool ApplyRig; // false no rigidity cutoff, true then apply one
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G4double ERig; // energy of rigidity cutoff
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G4PhysicsOrderedFreeVector UDefEnergyH; // energy hist data
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G4PhysicsOrderedFreeVector IPDFEnergyH;
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G4bool IPDFEnergyExist, IPDFArbExist, Epnflag;
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G4PhysicsOrderedFreeVector ArbEnergyH; // Arb x,y histogram
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G4PhysicsOrderedFreeVector IPDFArbEnergyH; // IPDF for Arb
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G4PhysicsOrderedFreeVector EpnEnergyH;
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G4double CDGhist[3]; // cumulative histo for cdg
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G4double BBHist[10001], Bbody_x[10001];
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G4String IntType; // Interpolation type
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G4double Arb_grad[1024], Arb_cept[1024]; // grad and cept for 1024 segments
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G4double Arb_alpha[1024], Arb_Const[1024]; // alpha and constants
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G4double Arb_ezero[1024]; // ezero
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G4double ArbEmin, ArbEmax; // Emin and Emax for the whole arb distribution used primarily for debug.
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G4double particle_energy;
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G4ParticleDefinition* particle_definition;
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G4SPSRandomGenerator* eneRndm;
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// Verbosity
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G4int verbosityLevel;
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G4PhysicsOrderedFreeVector ZeroPhysVector ; // for re-set only
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G4DataInterpolation *SplineInt; // holds Spline stuff
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};
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#endif
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