Import Geant4 8.1.0 source tree
This commit is contained in:
Gabriele Cosmo
@@ -1,27 +1,30 @@
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//
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// ********************************************************************
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// * DISCLAIMER *
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// * License and 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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// * The Geant4 software is copyright of the Copyright Holders of *
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// * the Geant4 Collaboration. It is provided under the terms and *
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// * conditions of the Geant4 Software License, included in the file *
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// * LICENSE and available at http://cern.ch/geant4/license . These *
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// * include a list of copyright holders. *
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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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// * use. Please see the license in the file LICENSE and URL above *
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// * for the full disclaimer and the limitation of liability. *
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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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// * This code implementation is the result of the scientific and *
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// * technical work of the GEANT4 collaboration. *
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// * By using, copying, modifying or distributing the software (or *
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// * any work based on the software) you agree to acknowledge its *
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// * use in resulting scientific publications, and indicate your *
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// * acceptance of all terms of the Geant4 Software license. *
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// ********************************************************************
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//
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// $Id: G4MuBetheBlochModel.cc,v 1.20 2005/08/18 14:38:55 vnivanch Exp $
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// GEANT4 tag $Name: geant4-08-00 $
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// $Id: G4MuBetheBlochModel.cc,v 1.22 2006/06/29 19:49:36 gunter Exp $
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// GEANT4 tag $Name: geant4-08-01 $
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//
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// -------------------------------------------------------------------
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//
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@@ -40,9 +43,10 @@
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// 23-12-02 Change interface in order to move to cut per region (V.Ivanchenko)
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// 27-01-03 Make models region aware (V.Ivanchenko)
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// 13-02-03 Add name (V.Ivanchenko)
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// 10-02-04 Calculation of radiative corrections using R.Kokoulin model (V.Ivanchenko)
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// 10-02-04 Calculation of radiative corrections using R.Kokoulin model (V.I)
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// 08-04-05 Major optimisation of internal interfaces (V.Ivantchenko)
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// 12-04-05 Add usage of G4EmCorrections (V.Ivanchenko)
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// 13-02-06 ComputeCrossSectionPerElectron, ComputeCrossSectionPerAtom (mma)
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//
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//
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@@ -50,8 +54,8 @@
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//
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//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
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//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
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//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
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//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
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#include "G4MuBetheBlochModel.hh"
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#include "Randomize.hh"
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@@ -60,10 +64,13 @@
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#include "G4EmCorrections.hh"
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#include "G4ParticleChangeForLoss.hh"
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G4double G4MuBetheBlochModel::xgi[]={ 0.0199,0.1017,0.2372,0.4083,0.5917,0.7628,0.8983,0.9801 };
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G4double G4MuBetheBlochModel::wgi[]={ 0.0506,0.1112,0.1569,0.1813,0.1813,0.1569,0.1112,0.0506 };
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G4double G4MuBetheBlochModel::xgi[]={ 0.0199, 0.1017, 0.2372, 0.4083, 0.5917,
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0.7628, 0.8983, 0.9801 };
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G4double G4MuBetheBlochModel::wgi[]={ 0.0506, 0.1112, 0.1569, 0.1813, 0.1813,
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0.1569, 0.1112, 0.0506 };
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//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
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//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
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using namespace std;
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@@ -84,12 +91,12 @@ G4MuBetheBlochModel::G4MuBetheBlochModel(const G4ParticleDefinition* p,
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if(p) SetParticle(p);
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}
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//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
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//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
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G4MuBetheBlochModel::~G4MuBetheBlochModel()
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{}
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//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
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//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
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void G4MuBetheBlochModel::SetParticle(const G4ParticleDefinition* p)
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{
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@@ -101,7 +108,7 @@ void G4MuBetheBlochModel::SetParticle(const G4ParticleDefinition* p)
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}
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}
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//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
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//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
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G4double G4MuBetheBlochModel::MinEnergyCut(const G4ParticleDefinition*,
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const G4MaterialCutsCouple* couple)
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@@ -109,7 +116,7 @@ G4double G4MuBetheBlochModel::MinEnergyCut(const G4ParticleDefinition*,
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return couple->GetMaterial()->GetIonisation()->GetMeanExcitationEnergy();
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}
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//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
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//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
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void G4MuBetheBlochModel::Initialise(const G4ParticleDefinition* p,
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const G4DataVector&)
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@@ -117,17 +124,96 @@ void G4MuBetheBlochModel::Initialise(const G4ParticleDefinition* p,
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if(p) SetParticle(p);
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if(pParticleChange)
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fParticleChange = reinterpret_cast<G4ParticleChangeForLoss*>(pParticleChange);
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fParticleChange = reinterpret_cast<G4ParticleChangeForLoss*>
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(pParticleChange);
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else
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fParticleChange = new G4ParticleChangeForLoss();
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}
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//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
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//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
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G4double G4MuBetheBlochModel::ComputeCrossSectionPerElectron(
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const G4ParticleDefinition* p,
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G4double kineticEnergy,
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G4double cutEnergy,
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G4double maxKinEnergy)
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{
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G4double cross = 0.0;
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G4double tmax = MaxSecondaryEnergy(p, kineticEnergy);
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G4double maxEnergy = min(tmax,maxKinEnergy);
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if(cutEnergy < maxEnergy) {
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G4double totEnergy = kineticEnergy + mass;
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G4double energy2 = totEnergy*totEnergy;
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G4double beta2 = kineticEnergy*(kineticEnergy + 2.0*mass)/energy2;
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cross = 1.0/cutEnergy - 1.0/maxEnergy - beta2*log(maxEnergy/cutEnergy)/tmax
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+ 0.5*(maxEnergy - cutEnergy)/energy2;
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// radiative corrections of R. Kokoulin
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if (maxEnergy > limitKinEnergy) {
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G4double logtmax = log(maxEnergy);
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G4double logtmin = log(max(cutEnergy,limitKinEnergy));
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G4double logstep = logtmax - logtmin;
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G4double dcross = 0.0;
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for (G4int ll=0; ll<8; ll++)
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{
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G4double ep = exp(logtmin + xgi[ll]*logstep);
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G4double a1 = log(1.0 + 2.0*ep/electron_mass_c2);
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G4double a3 = log(4.0*totEnergy*(totEnergy - ep)/massSquare);
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dcross += wgi[ll]*(1.0/ep - beta2/tmax + 0.5*ep/energy2)*a1*(a3 - a1);
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}
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cross += dcross*logstep*alphaprime;
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}
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cross *= twopi_mc2_rcl2/beta2;
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}
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// G4cout << "tmin= " << cutEnergy << " tmax= " << tmax
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// << " cross= " << cross << G4endl;
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return cross;
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}
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//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
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G4double G4MuBetheBlochModel::ComputeCrossSectionPerAtom(
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const G4ParticleDefinition* p,
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G4double kineticEnergy,
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G4double Z, G4double,
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G4double cutEnergy,
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G4double maxEnergy)
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{
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G4double cross = Z*ComputeCrossSectionPerElectron
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(p,kineticEnergy,cutEnergy,maxEnergy);
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return cross;
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}
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//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
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G4double G4MuBetheBlochModel::CrossSectionPerVolume(
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const G4Material* material,
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const G4ParticleDefinition* p,
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G4double kineticEnergy,
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G4double cutEnergy,
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G4double maxEnergy)
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{
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G4double eDensity = material->GetElectronDensity();
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G4double cross = eDensity*ComputeCrossSectionPerElectron
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(p,kineticEnergy,cutEnergy,maxEnergy);
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return cross;
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}
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//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
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G4double G4MuBetheBlochModel::ComputeDEDXPerVolume(const G4Material* material,
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const G4ParticleDefinition* p,
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G4double kineticEnergy,
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G4double cut)
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const G4ParticleDefinition* p,
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G4double kineticEnergy,
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G4double cut)
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{
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G4double tmax = MaxSecondaryEnergy(p, kineticEnergy);
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G4double tau = kineticEnergy/mass;
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@@ -146,7 +232,8 @@ G4double G4MuBetheBlochModel::ComputeDEDXPerVolume(const G4Material* material,
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G4double eDensity = material->GetElectronDensity();
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G4double dedx = log(2.0*electron_mass_c2*bg2*cutEnergy/eexc2)-(1.0 + cutEnergy/tmax)*beta2;
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G4double dedx = log(2.0*electron_mass_c2*bg2*cutEnergy/eexc2)
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-(1.0 + cutEnergy/tmax)*beta2;
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G4double totEnergy = kineticEnergy + mass;
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G4double del = 0.5*cutEnergy/totEnergy;
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@@ -192,55 +279,7 @@ G4double G4MuBetheBlochModel::ComputeDEDXPerVolume(const G4Material* material,
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return dedx;
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}
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//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
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G4double G4MuBetheBlochModel::CrossSectionPerVolume(const G4Material* material,
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const G4ParticleDefinition* p,
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G4double kineticEnergy,
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G4double cutEnergy,
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G4double maxKinEnergy)
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{
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G4double cross = 0.0;
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G4double tmax = MaxSecondaryEnergy(p, kineticEnergy);
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G4double maxEnergy = min(tmax,maxKinEnergy);
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if(cutEnergy < maxEnergy) {
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G4double totEnergy = kineticEnergy + mass;
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G4double energy2 = totEnergy*totEnergy;
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G4double beta2 = kineticEnergy*(kineticEnergy + 2.0*mass)/energy2;
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cross = 1.0/cutEnergy - 1.0/maxEnergy - beta2*log(maxEnergy/cutEnergy)/tmax
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+ 0.5*(maxEnergy - cutEnergy)/energy2;
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// radiative corrections of R. Kokoulin
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if (maxEnergy > limitKinEnergy) {
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G4double logtmax = log(maxEnergy);
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G4double logtmin = log(max(cutEnergy,limitKinEnergy));
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G4double logstep = logtmax - logtmin;
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G4double dcross = 0.0;
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for (G4int ll=0; ll<8; ll++)
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{
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G4double ep = exp(logtmin + xgi[ll]*logstep);
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G4double a1 = log(1.0 + 2.0*ep/electron_mass_c2);
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G4double a3 = log(4.0*totEnergy*(totEnergy - ep)/massSquare);
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dcross += wgi[ll]*(1.0/ep - beta2/tmax + 0.5*ep/energy2)*a1*(a3 - a1);
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}
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cross += dcross*logstep*alphaprime;
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}
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cross *= twopi_mc2_rcl2*(material->GetElectronDensity())/beta2;
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}
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// G4cout << "tmin= " << cutEnergy << " tmax= " << tmax
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// << " cross= " << cross << G4endl;
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return cross;
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}
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//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
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//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
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vector<G4DynamicParticle*>* G4MuBetheBlochModel::SampleSecondaries(
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const G4MaterialCutsCouple*,
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@@ -268,10 +307,12 @@ vector<G4DynamicParticle*>* G4MuBetheBlochModel::SampleSecondaries(
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// sampling follows ...
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do {
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G4double q = G4UniformRand();
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deltaKinEnergy = minKinEnergy*maxKinEnergy/(minKinEnergy*(1.0 - q) + maxKinEnergy*q);
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deltaKinEnergy = minKinEnergy*maxKinEnergy
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/(minKinEnergy*(1.0 - q) + maxKinEnergy*q);
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f = 1.0 - beta2*deltaKinEnergy/tmax + 0.5*deltaKinEnergy*deltaKinEnergy/etot2;
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f = 1.0 - beta2*deltaKinEnergy/tmax
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+ 0.5*deltaKinEnergy*deltaKinEnergy/etot2;
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if(deltaKinEnergy > limitKinEnergy) {
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G4double a1 = log(1.0 + 2.0*deltaKinEnergy/electron_mass_c2);
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@@ -313,11 +354,11 @@ vector<G4DynamicParticle*>* G4MuBetheBlochModel::SampleSecondaries(
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// create G4DynamicParticle object for delta ray
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G4DynamicParticle* delta = new G4DynamicParticle(theElectron,
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deltaDirection,deltaKinEnergy);
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deltaDirection,deltaKinEnergy);
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vector<G4DynamicParticle*>* vdp = new vector<G4DynamicParticle*>;
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vdp->push_back(delta);
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return vdp;
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}
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//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
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//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
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