[1350] | 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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| 26 | #define hTestPrimaryGeneratorAction_CPP |
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| 27 | |
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| 28 | //--------------------------------------------------------------------------- |
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| 29 | // |
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| 30 | // ClassName: hTestPrimaryGeneratorAction |
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| 31 | // |
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| 32 | // Description: Generate primary beam |
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| 33 | // |
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| 34 | // Authors: 0.6.04.01 V.Ivanchenko |
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| 35 | // |
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| 36 | // Modified: |
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| 37 | // |
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| 38 | //---------------------------------------------------------------------------- |
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| 39 | // |
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| 40 | |
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| 41 | #include "hTestPrimaryGeneratorAction.hh" |
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| 42 | #include "hTestPrimaryGeneratorMessenger.hh" |
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| 43 | #include "Randomize.hh" |
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| 44 | #include "G4ParticleGun.hh" |
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| 45 | #include "G4ParticleTable.hh" |
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| 46 | #include "G4ParticleDefinition.hh" |
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| 47 | #include "hTestHisto.hh" |
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| 48 | |
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| 49 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo.... |
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| 50 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo.... |
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| 51 | |
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| 52 | hTestPrimaryGeneratorAction::hTestPrimaryGeneratorAction( |
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| 53 | hTestDetectorConstruction* det): |
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| 54 | theDet(det) |
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| 55 | { |
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| 56 | InitializeMe(); |
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| 57 | } |
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| 58 | |
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| 59 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo.... |
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| 60 | |
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| 61 | void hTestPrimaryGeneratorAction::InitializeMe() |
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| 62 | { |
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| 63 | verbose = theDet->GetVerbose(); |
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| 64 | theMessenger = new hTestPrimaryGeneratorMessenger(this); |
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| 65 | particleGun = new G4ParticleGun(); |
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| 66 | counter = 0; |
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| 67 | x0 = 0.0; |
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| 68 | y0 = 0.0; |
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| 69 | z0 = 0.0; |
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| 70 | sigmaX = 0.0; |
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| 71 | sigmaY = 0.0; |
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| 72 | sigmaZ = 0.0; |
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| 73 | sigmaE = 0.0; |
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| 74 | minCosTheta = 1.0; |
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| 75 | SetBeamEnergy(10.0*MeV); |
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| 76 | position = G4ThreeVector(x0,y0,z0); |
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| 77 | direction = G4ThreeVector(0.0,0.0,1.0); |
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| 78 | m_gauss = true; |
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| 79 | if(energy < (hTestHisto::GetPointer())->GetMaxEnergy()) |
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| 80 | (hTestHisto::GetPointer())->SetMaxEnergy(energy); |
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| 81 | } |
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| 82 | |
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| 83 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo.... |
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| 84 | |
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| 85 | hTestPrimaryGeneratorAction::~hTestPrimaryGeneratorAction() |
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| 86 | { |
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| 87 | delete particleGun; |
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| 88 | delete theMessenger; |
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| 89 | } |
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| 90 | |
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| 91 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo.... |
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| 92 | |
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| 93 | void hTestPrimaryGeneratorAction::GeneratePrimaries(G4Event* anEvent) |
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| 94 | { |
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| 95 | counter++ ; |
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| 96 | verbose = theDet->GetVerbose(); |
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| 97 | |
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| 98 | // Simulation of beam position |
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| 99 | G4double x = x0; |
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| 100 | G4double y = y0; |
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| 101 | G4double z = z0; |
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| 102 | if(0.0 < sigmaX) x += G4RandGauss::shoot(0.0,sigmaX); |
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| 103 | if(0.0 < sigmaY) y += G4RandGauss::shoot(0.0,sigmaY); |
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| 104 | if(0.0 < sigmaZ) z += G4RandGauss::shoot(0.0,sigmaZ); |
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| 105 | position = G4ThreeVector(x,y,z); |
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| 106 | particleGun->SetParticlePosition(position); |
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| 107 | |
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| 108 | // Simulation of beam direction |
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| 109 | G4double ux = direction.x(); |
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| 110 | G4double uy = direction.y(); |
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| 111 | G4double uz = direction.z(); |
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| 112 | |
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| 113 | // Beam particles are uniformly distributed over phi, cosTheta |
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| 114 | if(1.0 > minCosTheta) { |
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| 115 | uz = minCosTheta + (1.0 - minCosTheta)*G4UniformRand() ; |
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| 116 | ux = std::sqrt(1.0 - uz*uz) ; |
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| 117 | uy = ux ; |
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| 118 | G4double phi = 360.0*deg*G4UniformRand() ; |
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| 119 | ux *= std::cos(phi) ; |
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| 120 | uy *= std::sin(phi) ; |
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| 121 | direction = G4ThreeVector(ux,uy,uz) ; |
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| 122 | } |
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| 123 | |
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| 124 | direction = direction.unit(); |
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| 125 | particleGun->SetParticleMomentumDirection(direction); |
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| 126 | G4ParticleDefinition* particle = particleGun->GetParticleDefinition(); |
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| 127 | G4double mass = particle->GetPDGMass(); |
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| 128 | |
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| 129 | // Simulation of beam kinetic energy |
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| 130 | G4double kinEnergy = energy; |
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| 131 | |
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| 132 | if(m_gauss == "flatE") kinEnergy = minE + (maxE-minE)*G4UniformRand(); |
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| 133 | |
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| 134 | else if(m_gauss == "flatBeta") { |
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| 135 | G4double beta = minBeta + (maxBeta-minBeta)*G4UniformRand(); |
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| 136 | kinEnergy = mass*(1./std::sqrt(1. - beta*beta) - 1.); |
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| 137 | } |
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| 138 | else if(0.0 < sigmaE) kinEnergy += G4RandGauss::shoot(0.0,sigmaE); |
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| 139 | |
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| 140 | |
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| 141 | if(0.0 > kinEnergy) kinEnergy = 0.0; |
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| 142 | particleGun->SetParticleEnergy(kinEnergy); |
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| 143 | |
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| 144 | G4String particleName = particle->GetParticleName() ; |
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| 145 | |
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| 146 | if(verbose > 0) { |
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| 147 | G4cout << "Event# " << counter |
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| 148 | << " Beam particle is generated by hTestPrimaryGeneratorAction " |
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| 149 | << G4endl; |
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| 150 | G4cout << "ParticleName= " << particleName |
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| 151 | << " PDGcode= " << particle->GetPDGEncoding() |
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| 152 | << std::setprecision(5) |
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| 153 | << " KinEnergy(GeV)= " |
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| 154 | << energy/GeV |
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| 155 | << " x(mm)= " |
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| 156 | << x/mm |
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| 157 | << " y(mm)= " |
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| 158 | << y/mm |
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| 159 | << " z(mm)= " |
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| 160 | << z/mm |
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| 161 | << " ux= " |
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| 162 | << ux |
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| 163 | << " uy= " |
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| 164 | << uy |
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| 165 | << " uz= " |
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| 166 | << uz |
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| 167 | << endl; |
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| 168 | } |
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| 169 | |
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| 170 | particleGun->GeneratePrimaryVertex(anEvent); |
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| 171 | if(verbose > 1) G4cout << "hTestPrimaryGeneratorAction: BeamOn" << G4endl; |
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| 172 | } |
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| 173 | |
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| 174 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo.... |
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| 175 | |
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| 176 | void hTestPrimaryGeneratorAction::SetBeamBeta(G4double val) |
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| 177 | { |
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| 178 | G4ParticleDefinition* particle = particleGun->GetParticleDefinition(); |
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| 179 | G4double mass = particle->GetPDGMass(); |
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| 180 | if(val > 0. && val < 1.) energy = mass*(1./std::sqrt(1.-val*val) - 1.); |
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| 181 | G4cout << "hTestPrimaryGeneratorAction: KinEnergy(MeV)= " |
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| 182 | << energy/MeV << G4endl; |
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| 183 | minE = energy; |
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| 184 | maxE = energy; |
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| 185 | minBeta = val; |
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| 186 | maxBeta = val; |
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| 187 | } |
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| 188 | |
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| 189 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo.... |
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| 190 | |
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| 191 | void hTestPrimaryGeneratorAction::SetSigmaBeta(G4double val) |
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| 192 | { |
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| 193 | G4ParticleDefinition* particle = particleGun->GetParticleDefinition(); |
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| 194 | G4double mass = particle->GetPDGMass(); |
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| 195 | if(val > 0. && val < 1.) { |
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| 196 | sigmaE = mass*(1./std::sqrt(1.-val*val) - 1.); |
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| 197 | G4double gamma = energy/mass + 1.; |
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| 198 | G4double beta0 = std::sqrt(1. - 1./(gamma*gamma)); |
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| 199 | G4double beta = beta0 + val; |
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| 200 | if (beta >= 1.) beta = 0.9999; |
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| 201 | maxBeta = beta; |
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| 202 | maxE = mass*(1./std::sqrt(1.-beta*beta) - 1.); |
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| 203 | beta = beta0 - val; |
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| 204 | if (beta <= 0.) beta = 0.0001; |
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| 205 | minBeta = beta; |
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| 206 | minE = mass*(1./std::sqrt(1.-beta*beta) - 1.); |
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| 207 | } |
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| 208 | } |
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| 209 | |
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| 210 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo.... |
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| 211 | |
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| 212 | void hTestPrimaryGeneratorAction::SetBeamSigmaE(G4double val) |
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| 213 | { |
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| 214 | G4ParticleDefinition* particle = particleGun->GetParticleDefinition(); |
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| 215 | G4double mass = particle->GetPDGMass(); |
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| 216 | sigmaE = val; |
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| 217 | minE = energy - sigmaE; |
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| 218 | G4double gamma = minE/mass + 1.; |
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| 219 | minBeta = std::sqrt(1. - 1./(gamma*gamma)); |
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| 220 | maxE = energy + sigmaE; |
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| 221 | gamma = maxE/mass + 1.; |
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| 222 | maxBeta = std::sqrt(1. - 1./(gamma*gamma)); |
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| 223 | } |
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| 224 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo.... |
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| 225 | |
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| 226 | void hTestPrimaryGeneratorAction::SetBeamEnergy(G4double val) |
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| 227 | { |
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| 228 | G4ParticleDefinition* particle = particleGun->GetParticleDefinition(); |
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| 229 | G4double mass = particle->GetPDGMass(); |
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| 230 | energy = val; |
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| 231 | minE = energy - sigmaE; |
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| 232 | G4double gamma = minE/mass + 1.; |
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| 233 | minBeta = std::sqrt(1. - 1./(gamma*gamma)); |
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| 234 | maxE = energy + sigmaE; |
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| 235 | gamma = maxE/mass + 1.; |
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| 236 | maxBeta = std::sqrt(1. - 1./(gamma*gamma)); |
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| 237 | if(energy < (hTestHisto::GetPointer())->GetMaxEnergy()) |
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| 238 | (hTestHisto::GetPointer())->SetMaxEnergy(energy); |
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| 239 | } |
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| 240 | |
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| 241 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo.... |
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