[819] | 1 | // |
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| 2 | // ******************************************************************** |
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| 3 | // * License and Disclaimer * |
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| 4 | // * * |
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| 5 | // * The Geant4 software is copyright of the Copyright Holders of * |
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| 6 | // * the Geant4 Collaboration. It is provided under the terms and * |
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| 7 | // * conditions of the Geant4 Software License, included in the file * |
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| 8 | // * LICENSE and available at http://cern.ch/geant4/license . These * |
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| 9 | // * include a list of copyright holders. * |
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| 10 | // * * |
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| 11 | // * Neither the authors of this software system, nor their employing * |
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| 12 | // * institutes,nor the agencies providing financial support for this * |
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| 13 | // * work make any representation or warranty, express or implied, * |
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| 14 | // * regarding this software system or assume any liability for its * |
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| 15 | // * use. Please see the license in the file LICENSE and URL above * |
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| 16 | // * for the full disclaimer and the limitation of liability. * |
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| 17 | // * * |
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| 18 | // * This code implementation is the result of the scientific and * |
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| 19 | // * technical work of the GEANT4 collaboration. * |
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| 20 | // * By using, copying, modifying or distributing the software (or * |
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| 21 | // * any work based on the software) you agree to acknowledge its * |
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| 22 | // * use in resulting scientific publications, and indicate your * |
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| 23 | // * acceptance of all terms of the Geant4 Software license. * |
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| 24 | // ******************************************************************** |
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| 25 | // |
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[961] | 26 | // $Id: G4MultipleScattering71.cc,v 1.5 2008/07/16 11:27:41 vnivanch Exp $ |
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[1006] | 27 | // GEANT4 tag $Name: geant4-09-02-ref-02 $ |
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[819] | 28 | // |
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| 29 | // ----------------------------------------------------------------------------- |
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| 30 | // 16/05/01 value of cparm changed , L.Urban |
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| 31 | // 18/05/01 V.Ivanchenko Clean up against Linux ANSI compilation |
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| 32 | // 07/08/01 new methods Store/Retrieve PhysicsTable (mma) |
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| 33 | // 23-08-01 new angle and z distribution,energy dependence reduced, |
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| 34 | // Store,Retrieve methods commented out temporarily, L.Urban |
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| 35 | // 27-08-01 in BuildPhysicsTable:aParticleType.GetParticleName()=="mu+" (mma) |
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| 36 | // 28-08-01 GetContinuousStepLimit and AlongStepDoIt moved from .icc file (mma) |
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| 37 | // 03-09-01 value of data member factlim changed, L.Urban |
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| 38 | // 10-09-01 small change in GetContinuousStepLimit, L.Urban |
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| 39 | // 11-09-01 G4MultipleScatteringx put as default G4MultipleScattering |
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| 40 | // store/retrieve physics table reactivated (mma) |
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| 41 | // 13-09-01 corr. in ComputeTransportCrossSection, L.Urban |
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| 42 | // 14-09-01 protection in GetContinuousStepLimit, L.Urban |
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| 43 | // 17-09-01 migration of Materials to pure STL (mma) |
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| 44 | // 27-09-01 value of data member factlim changed, L.Urban |
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| 45 | // 31-10-01 big fixed in PostStepDoIt,L.Urban |
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| 46 | // 17-04-02 NEW angle distribution + boundary algorithm modified, L.Urban |
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| 47 | // 22-04-02 boundary algorithm modified -> important improvement in timing (L.Urban) |
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| 48 | // 24-04-02 some minor changes in boundary algorithm, L.Urban |
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| 49 | // 06-05-02 bug fixed in GetContinuousStepLimit, L.Urban |
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| 50 | // 24-05-02 changes in angle distribution and boundary algorithm, L.Urban |
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| 51 | // 11-06-02 bug fixed in ComputeTransportCrossSection, L.Urban |
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| 52 | // 12-08-02 bug fixed in PostStepDoIt (lateral displacement), L.Urban |
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| 53 | // 15-08-02 new angle distribution, L.Urban |
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| 54 | // 26-09-02 angle distribution + boundary algorithm modified, L.Urban |
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| 55 | // 15-10-02 temporary fix for proton scattering |
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| 56 | // 30-10-02 modified angle distribution,mods in boundary algorithm, |
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| 57 | // changes in data members, L.Urban |
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| 58 | // 11-12-02 precision problem in ComputeTransportCrossSection |
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| 59 | // for small Tkin/for heavy particles cured from L.Urban |
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| 60 | // 20-01-03 Migrade to cut per region (V.Ivanchenko) |
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| 61 | // 05-02-03 changes in data members, new sampling for geom. |
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| 62 | // path length, step dependence reduced with new |
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| 63 | // method |
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| 64 | // 28-03-03 Move to model design (V.Ivanchenko) |
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| 65 | // 08-08-03 STD substitute standard (V.Ivanchenko) |
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| 66 | // 23-04-04 value of data member dtrl changed from 0.15 to 0.05 (L.Urban) |
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| 67 | // 17-08-04 name of facxsi changed to factail (L.Urban) |
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| 68 | // 08-11-04 Migration to new interface of Store/Retrieve tables (V.Ivantchenko) |
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| 69 | // 07-02-05 correction in order to have a working Setsamplez function (L.Urban) |
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| 70 | // 15-04-05 optimize internal interface (V.Ivanchenko) |
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| 71 | // 03-10-05 Process is freezed with the name 71 (V.Ivanchenko) |
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| 72 | // ----------------------------------------------------------------------------- |
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| 73 | // |
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| 74 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo...... |
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| 75 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo...... |
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| 76 | |
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| 77 | #include "G4MultipleScattering71.hh" |
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[961] | 78 | #include "G4LossTableManager.hh" |
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[819] | 79 | #include "G4MscModel71.hh" |
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| 80 | |
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| 81 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo...... |
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| 82 | |
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| 83 | using namespace std; |
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| 84 | |
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| 85 | G4MultipleScattering71::G4MultipleScattering71(const G4String& processName) |
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| 86 | : G4VMultipleScattering(processName), |
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| 87 | totBins(120), |
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| 88 | facrange(0.199), |
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| 89 | dtrl(0.05), |
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| 90 | NuclCorrPar (0.0615), |
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| 91 | FactPar(0.40), |
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| 92 | factail(1.0), |
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| 93 | cf(1.001), |
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| 94 | stepnolastmsc(-1000000), |
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| 95 | nsmallstep(5), |
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| 96 | samplez(true), |
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| 97 | boundary(true), |
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| 98 | isInitialized(false) |
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| 99 | { |
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| 100 | lowKineticEnergy = 0.1*keV; |
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| 101 | highKineticEnergy= 100.*TeV; |
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| 102 | |
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| 103 | tlimit = 1.e10*mm; |
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| 104 | tlimitmin = 1.e-7*mm; |
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| 105 | |
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| 106 | SetBinning(totBins); |
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| 107 | SetMinKinEnergy(lowKineticEnergy); |
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| 108 | SetMaxKinEnergy(highKineticEnergy); |
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| 109 | } |
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| 110 | |
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| 111 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo...... |
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| 112 | |
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| 113 | G4MultipleScattering71::~G4MultipleScattering71() |
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| 114 | {} |
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| 115 | |
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| 116 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo...... |
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| 117 | |
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| 118 | void G4MultipleScattering71::InitialiseProcess(const G4ParticleDefinition* particle) |
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| 119 | { |
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| 120 | if(isInitialized) return; |
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| 121 | |
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| 122 | if (particle->GetParticleType() == "nucleus") { |
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| 123 | boundary = false; |
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| 124 | SetLateralDisplasmentFlag(false); |
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| 125 | SetBuildLambdaTable(false); |
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| 126 | Setsamplez(false) ; |
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| 127 | } else { |
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| 128 | SetLateralDisplasmentFlag(true); |
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| 129 | SetBuildLambdaTable(true); |
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| 130 | } |
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| 131 | G4MscModel71* em = new G4MscModel71(dtrl,NuclCorrPar,FactPar,factail,samplez); |
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| 132 | em->SetLateralDisplasmentFlag(LateralDisplasmentFlag()); |
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| 133 | em->SetLowEnergyLimit(lowKineticEnergy); |
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| 134 | em->SetHighEnergyLimit(highKineticEnergy); |
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| 135 | AddEmModel(1, em); |
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| 136 | isInitialized = true; |
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| 137 | } |
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| 138 | |
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| 139 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo...... |
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| 140 | |
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| 141 | G4double G4MultipleScattering71::TruePathLengthLimit(const G4Track& track, |
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| 142 | G4double& lambda, |
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| 143 | G4double currentMinimalStep) |
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| 144 | { |
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| 145 | |
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| 146 | G4double tPathLength = currentMinimalStep; |
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| 147 | |
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| 148 | // special treatment near boundaries ? |
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| 149 | if (boundary) { |
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| 150 | |
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| 151 | G4int stepno = track.GetCurrentStepNumber() ; |
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| 152 | // first step |
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| 153 | if (stepno == 1) { |
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| 154 | stepnolastmsc = -1000000 ; |
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| 155 | tlimit = 1.e10; |
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| 156 | } else if (stepno > 1) { |
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| 157 | |
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| 158 | if (track.GetStep()->GetPreStepPoint()->GetStepStatus() == fGeomBoundary) { |
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| 159 | |
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| 160 | stepnolastmsc = stepno; |
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| 161 | // if : diff.treatment for small/not small Z |
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| 162 | if (range > lambda) tlimit = facrange*range; |
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| 163 | else tlimit = facrange*lambda; |
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| 164 | |
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| 165 | if(tlimit < tlimitmin) tlimit = tlimitmin; |
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| 166 | if(tPathLength > tlimit) tPathLength = tlimit; |
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| 167 | |
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| 168 | } else if (stepno > stepnolastmsc && stepno - stepnolastmsc < nsmallstep |
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| 169 | && tPathLength > tlimit) { |
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| 170 | tlimit *= cf; |
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| 171 | tPathLength = tlimit; |
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| 172 | } |
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| 173 | } |
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| 174 | } |
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| 175 | |
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| 176 | return tPathLength; |
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| 177 | } |
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| 178 | |
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[961] | 179 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo.... |
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| 180 | |
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| 181 | G4double G4MultipleScattering71::GetContinuousStepLimit( |
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| 182 | const G4Track& track, |
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| 183 | G4double, |
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| 184 | G4double currentMinimalStep, |
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| 185 | G4double&) |
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| 186 | { |
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| 187 | DefineMaterial(track.GetMaterialCutsCouple()); |
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| 188 | const G4MaterialCutsCouple* couple = CurrentMaterialCutsCouple(); |
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| 189 | G4double e = track.GetKineticEnergy(); |
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| 190 | model = dynamic_cast<G4MscModel71*>(SelectModel(e)); |
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| 191 | const G4ParticleDefinition* p = track.GetDefinition(); |
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| 192 | G4double lambda0 = GetLambda(p, e); |
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| 193 | range = G4LossTableManager::Instance()->GetRangeFromRestricteDEDX(p,e,couple); |
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| 194 | if(range < currentMinimalStep) currentMinimalStep = range; |
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| 195 | truePathLength = TruePathLengthLimit(track,lambda0,currentMinimalStep); |
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| 196 | // G4cout << "StepLimit: tpl= " << truePathLength << " lambda0= " |
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| 197 | // << lambda0 << " range= " << currentRange |
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| 198 | // << " currentMinStep= " << currentMinimalStep << G4endl; |
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| 199 | if (truePathLength < currentMinimalStep) valueGPILSelectionMSC = CandidateForSelection; |
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| 200 | geomPathLength = model->GeomPathLength(LambdaTable(),couple, |
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| 201 | p,e,lambda0,range,truePathLength); |
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| 202 | if(geomPathLength > lambda0) geomPathLength = lambda0; |
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| 203 | return geomPathLength; |
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| 204 | } |
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| 205 | |
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[819] | 206 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo...... |
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| 207 | |
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| 208 | void G4MultipleScattering71::PrintInfo() |
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| 209 | { |
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| 210 | if(boundary) { |
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| 211 | G4cout << " Boundary algorithm is active with facrange= " |
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| 212 | << facrange |
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| 213 | << G4endl; |
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| 214 | } |
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| 215 | G4cout << " WARNING: This process is obsolete and will be soon removed" |
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| 216 | << G4endl; |
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| 217 | |
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| 218 | } |
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| 219 | |
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| 220 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo...... |
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| 221 | |
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