[807] | 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 | /////////////////////////////////////////////////////////////////////////////// |
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| 27 | // File: CCalPrimaryGeneratorAction.cc |
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| 28 | // Description: CCalPrimaryGeneratorAction Sets up particle beam |
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| 29 | /////////////////////////////////////////////////////////////////////////////// |
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| 30 | |
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| 31 | #include "CCalPrimaryGeneratorAction.hh" |
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| 32 | #include "CCalPrimaryGeneratorMessenger.hh" |
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| 33 | #include "G4HEPEvtInterface.hh" |
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| 34 | |
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| 35 | #include "G4Event.hh" |
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| 36 | #include "G4ParticleGun.hh" |
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| 37 | #include "G4ParticleTable.hh" |
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| 38 | #include "G4ParticleDefinition.hh" |
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| 39 | #include "CLHEP/Random/RandFlat.h" |
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| 40 | #include "G4HEPEvtInterface.hh" |
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| 41 | #include "G4RunManager.hh" |
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| 42 | |
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| 43 | #define debug |
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| 44 | |
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| 45 | CCalPrimaryGeneratorAction::CCalPrimaryGeneratorAction(): particleGun(0), |
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| 46 | generatorInput(singleFixed), verboseLevel(0), n_particle(1), |
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| 47 | particleName("pi-"), particleEnergy(100*GeV), particlePosition(0.,0.,0.), |
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| 48 | particleDir(1.,1.,0.1), isInitialized(0), scanSteps(0) { |
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| 49 | |
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| 50 | //Initialise the messenger |
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| 51 | gunMessenger = new CCalPrimaryGeneratorMessenger(this); |
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| 52 | |
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| 53 | //Default settings: |
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| 54 | SetMinimumEnergy(1.*GeV); |
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| 55 | SetMaximumEnergy(1.*TeV); |
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| 56 | SetMinimumEta(0.); |
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| 57 | SetMaximumEta(3.5); |
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| 58 | SetMinimumPhi(0.*degree); |
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| 59 | SetMaximumPhi(360.*degree); |
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| 60 | SetStepsPhi(1); |
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| 61 | SetStepsEta(1); |
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| 62 | |
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| 63 | // Number of particles per gun |
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| 64 | particleGun = new G4ParticleGun(n_particle); |
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| 65 | |
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| 66 | // Getting particle definition |
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| 67 | G4ParticleTable* particleTable = G4ParticleTable::GetParticleTable(); |
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| 68 | G4ParticleDefinition* particle = particleTable->FindParticle(particleName); |
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| 69 | particleGun->SetParticleDefinition(particle); |
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| 70 | |
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| 71 | // Setting particle properties |
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| 72 | particleGun->SetParticleEnergy(particleEnergy); |
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| 73 | particleGun->SetParticleMomentumDirection(particleDir); |
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| 74 | particleGun->SetParticlePosition(particlePosition); |
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| 75 | print(0); |
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| 76 | } |
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| 77 | |
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| 78 | CCalPrimaryGeneratorAction::~CCalPrimaryGeneratorAction() { |
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| 79 | if (gunMessenger) |
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| 80 | delete gunMessenger; |
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| 81 | if (particleGun) |
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| 82 | delete particleGun; |
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| 83 | } |
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| 84 | |
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| 85 | void CCalPrimaryGeneratorAction::GeneratePrimaries(G4Event* anEvent) { |
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| 86 | |
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| 87 | if (isInitialized == 0) initialize(); |
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| 88 | |
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| 89 | if (generatorInput == singleRandom) { |
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| 90 | particleEnergy = CLHEP::RandFlat::shoot(energyMin,energyMax); |
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| 91 | particleGun->SetParticleEnergy(particleEnergy); |
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| 92 | |
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| 93 | G4double eta = CLHEP::RandFlat::shoot(etaMin,etaMax); |
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| 94 | G4double phi = CLHEP::RandFlat::shoot(phiMin,phiMax); |
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| 95 | G4double theta = std::atan(std::exp(-eta))*2.; |
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| 96 | G4double randomX = std::sin(theta)*std::cos(phi); |
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| 97 | G4double randomY = std::sin(theta)*std::sin(phi); |
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| 98 | G4double randomZ = std::cos(theta); |
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| 99 | |
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| 100 | particleDir = G4ThreeVector(randomX,randomY,randomZ); |
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| 101 | particleGun->SetParticleMomentumDirection(particleDir); |
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| 102 | #ifdef debug |
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| 103 | if (verboseLevel >= 2 ) { |
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| 104 | G4cout << "Energy " << particleEnergy/GeV << " GeV; Theta " |
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| 105 | << theta/deg << " degree; Phi " << phi/deg << " degree" << G4endl; |
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| 106 | G4cout << "Shooting in " << particleDir << " direction "<< G4endl; |
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| 107 | } |
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| 108 | #endif |
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| 109 | } else if (generatorInput == singleScan) { |
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| 110 | G4double scanEtaStep, scanPhiStep; |
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| 111 | if (scanSteps == 0) { |
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| 112 | scanPhiStep = (phiMax - phiMin) / phiSteps; |
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| 113 | phiValue = phiMin - scanPhiStep; //first step is going to change scanCurrentPhiValue |
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| 114 | etaValue = etaMin; |
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| 115 | } |
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| 116 | |
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| 117 | scanEtaStep = (etaMax - etaMin) / etaSteps; |
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| 118 | scanPhiStep = (phiMax - phiMin) / phiSteps; |
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| 119 | #ifdef debug |
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| 120 | if (verboseLevel > 2 ) { |
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| 121 | G4cout << " scanEtaStep " << scanEtaStep << " # of Steps " << etaSteps |
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| 122 | << G4endl; |
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| 123 | G4cout << " scanPhiStep " << scanPhiStep << " # of Steps " << phiSteps |
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| 124 | << G4endl; |
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| 125 | } |
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| 126 | #endif |
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| 127 | |
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| 128 | //----- First scan in phi, then in eta |
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| 129 | if (phiMax - phiValue < 1.E-6 * scanPhiStep) { // !only <= 1.E6 steps allowed |
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| 130 | if (etaMax - etaValue < 1.E-6 * scanEtaStep) { // !only <= 1.E6 steps allowed |
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| 131 | G4cout << " Scan completed!" << G4endl; |
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| 132 | return; |
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| 133 | } else { |
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| 134 | etaValue += scanEtaStep; |
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| 135 | phiValue = phiMin; |
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| 136 | } |
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| 137 | } else { |
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| 138 | phiValue += scanPhiStep; |
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| 139 | } |
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| 140 | G4double theta = std::atan(std::exp(-etaValue))*2.; |
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| 141 | |
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| 142 | G4double scanX = std::sin(theta)*std::cos(phiValue); |
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| 143 | G4double scanY = std::sin(theta)*std::sin(phiValue); |
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| 144 | G4double scanZ = std::cos(theta); |
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| 145 | if (verboseLevel >= 2 ) { |
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| 146 | G4cout << "Scan eta " << etaValue << " Phi " << phiValue/deg |
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| 147 | << " theta " << theta/deg << G4endl; |
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| 148 | } |
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| 149 | particleDir = G4ThreeVector(scanX,scanY,scanZ); |
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| 150 | particleGun->SetParticleMomentumDirection(particleDir); |
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| 151 | #ifdef debug |
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| 152 | if (verboseLevel > 2 ) { |
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| 153 | G4cout << "Shooting in " << particleDir << " direction "<< G4endl; |
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| 154 | } |
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| 155 | #endif |
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| 156 | scanSteps++; |
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| 157 | } |
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| 158 | |
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| 159 | // Generate GEANT4 primary vertex |
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| 160 | particleGun->GeneratePrimaryVertex(anEvent); |
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| 161 | } |
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| 162 | |
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| 163 | |
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| 164 | void CCalPrimaryGeneratorAction::SetVerboseLevel(G4int val){ |
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| 165 | verboseLevel = val; |
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| 166 | } |
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| 167 | |
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| 168 | |
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| 169 | void CCalPrimaryGeneratorAction::SetRandom(G4String val) { |
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| 170 | |
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| 171 | if (val=="on") { |
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| 172 | generatorInput = singleRandom; |
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| 173 | print (1); |
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| 174 | } else { |
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| 175 | generatorInput = singleFixed; |
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| 176 | print (1); |
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| 177 | } |
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| 178 | } |
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| 179 | |
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| 180 | |
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| 181 | void CCalPrimaryGeneratorAction::SetScan(G4String val) { |
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| 182 | |
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| 183 | if (val=="on") { |
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| 184 | generatorInput = singleScan; |
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| 185 | scanSteps = 0; |
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| 186 | print (1); |
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| 187 | } else { |
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| 188 | generatorInput = singleFixed; |
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| 189 | print (1); |
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| 190 | } |
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| 191 | } |
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| 192 | |
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| 193 | |
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| 194 | void CCalPrimaryGeneratorAction::SetMinimumEnergy(G4double p){ |
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| 195 | |
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| 196 | if (p <= 0.) { |
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| 197 | G4cerr << "CCalPrimaryGeneratorAction::SetMinimumEnergy: value " << p/GeV |
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| 198 | << "GeV is out of bounds, it will not be used" << G4endl; |
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| 199 | G4cerr << " Should be >0. Please check" << G4endl; |
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| 200 | } else { |
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| 201 | energyMin = p; |
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| 202 | #ifdef debug |
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| 203 | if (verboseLevel >= 1 ) { |
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| 204 | G4cout << " CCalPrimaryGeneratorAction: setting min. value of energy to " |
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| 205 | << energyMin/GeV << " GeV " << G4endl; |
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| 206 | } |
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| 207 | #endif |
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| 208 | } |
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| 209 | } |
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| 210 | |
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| 211 | |
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| 212 | void CCalPrimaryGeneratorAction::SetMaximumEnergy(G4double p){ |
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| 213 | |
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| 214 | if (p <= 0.) { |
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| 215 | G4cerr << "CCalPrimaryGeneratorAction::SetMaximumEnergy: value " << p/GeV |
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| 216 | << "GeV is out of bounds, it will not be used" << G4endl; |
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| 217 | G4cerr << " Should be >0. Please check" << G4endl; |
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| 218 | } else { |
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| 219 | energyMax = p; |
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| 220 | #ifdef debug |
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| 221 | if (verboseLevel >= 1 ) { |
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| 222 | G4cout << " CCalPrimaryGeneratorAction: setting max. value of energy to " |
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| 223 | << energyMax/GeV << " GeV " << G4endl; |
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| 224 | } |
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| 225 | #endif |
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| 226 | } |
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| 227 | } |
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| 228 | |
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| 229 | |
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| 230 | void CCalPrimaryGeneratorAction::SetMinimumPhi(G4double p){ |
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| 231 | |
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| 232 | if (std::fabs(p)>2.*pi) { |
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| 233 | G4cerr << "CCalPrimaryGeneratorAction::SetMinimumPhi: setting value quite " |
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| 234 | << "large" << G4endl; |
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| 235 | G4cerr << " Should be given in radians - Please check" << G4endl; |
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| 236 | } else { |
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| 237 | phiMin = std::fabs(p); |
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| 238 | #ifdef debug |
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| 239 | if (verboseLevel >= 1 ) { |
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| 240 | G4cout << " CCalPrimaryGeneratorAction: setting min. value of phi to " |
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| 241 | << phiMin << G4endl; |
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| 242 | } |
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| 243 | #endif |
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| 244 | } |
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| 245 | } |
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| 246 | |
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| 247 | |
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| 248 | void CCalPrimaryGeneratorAction::SetMaximumPhi(G4double p){ |
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| 249 | |
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| 250 | if (std::fabs(p)>2.*pi) { |
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| 251 | G4cerr << "CCalPrimaryGeneratorAction::SetMaximumPhi: setting value quite " |
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| 252 | << "large" << G4endl; |
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| 253 | G4cerr << " Should be given in radians - Please check" << G4endl; |
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| 254 | } else { |
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| 255 | phiMax = std::fabs(p); |
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| 256 | #ifdef debug |
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| 257 | if (verboseLevel >= 1 ) { |
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| 258 | G4cout << " CCalPrimaryGeneratorAction: setting max. value of phi to " |
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| 259 | << phiMax << G4endl; |
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| 260 | } |
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| 261 | #endif |
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| 262 | } |
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| 263 | } |
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| 264 | |
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| 265 | |
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| 266 | void CCalPrimaryGeneratorAction::SetStepsPhi(G4int val){ |
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| 267 | |
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| 268 | if (val <= 0) { |
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| 269 | G4cerr << "CCalPrimaryGeneratorAction::SetStepsPhi: value " << val |
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| 270 | << " is out of bounds, it will not be used" << G4endl; |
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| 271 | G4cerr << " Should be > 0 Please check" << G4endl; |
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| 272 | } else { |
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| 273 | phiSteps = val; |
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| 274 | #ifdef debug |
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| 275 | if (verboseLevel >= 1 ) { |
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| 276 | G4cout << " CCalPrimaryGeneratorAction: setting no. of steps in phi to " |
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| 277 | << phiSteps << G4endl; |
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| 278 | } |
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| 279 | #endif |
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| 280 | } |
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| 281 | } |
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| 282 | |
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| 283 | |
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| 284 | void CCalPrimaryGeneratorAction::SetMinimumEta(G4double p){ |
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| 285 | |
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| 286 | etaMin = p; |
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| 287 | #ifdef debug |
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| 288 | if (verboseLevel >= 1 ) { |
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| 289 | G4cout << " CCalPrimaryGeneratorAction: setting min. value of eta to " |
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| 290 | << etaMin << G4endl; |
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| 291 | } |
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| 292 | #endif |
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| 293 | } |
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| 294 | |
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| 295 | |
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| 296 | void CCalPrimaryGeneratorAction::SetMaximumEta(G4double p){ |
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| 297 | |
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| 298 | etaMax = p; |
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| 299 | #ifdef debug |
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| 300 | if (verboseLevel >= 1 ) { |
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| 301 | G4cout << " CCalPrimaryGeneratorAction: setting max. value of eta to " |
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| 302 | << etaMax << G4endl; |
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| 303 | } |
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| 304 | #endif |
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| 305 | } |
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| 306 | |
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| 307 | |
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| 308 | void CCalPrimaryGeneratorAction::SetStepsEta(G4int val){ |
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| 309 | |
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| 310 | if (val <= 0) { |
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| 311 | G4cerr<<"CCalPrimaryGeneratorAction::SetStepsEta: value " << val << " is out of bounds, it will not be used"<<G4endl; |
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| 312 | G4cerr<<" Should be > 0 Please check"<<G4endl; |
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| 313 | } else { |
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| 314 | etaSteps = val; |
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| 315 | #ifdef debug |
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| 316 | if (verboseLevel >= 1 ) { |
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| 317 | G4cout << " CCalPrimaryGeneratorAction: setting no. of steps in eta to " |
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| 318 | << etaSteps << G4endl; |
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| 319 | } |
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| 320 | #endif |
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| 321 | } |
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| 322 | } |
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| 323 | |
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| 324 | void CCalPrimaryGeneratorAction::SetGunPosition(const G4ThreeVector & pos) const { |
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| 325 | |
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| 326 | particleGun->SetParticlePosition(pos); |
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| 327 | } |
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| 328 | |
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| 329 | void CCalPrimaryGeneratorAction::SetRunNo(G4int val){ |
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| 330 | G4RunManager::GetRunManager()->SetRunIDCounter( val ); |
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| 331 | } |
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| 332 | |
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| 333 | void CCalPrimaryGeneratorAction::initialize(){ |
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| 334 | |
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| 335 | isInitialized = 1; |
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| 336 | |
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| 337 | print (1); |
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| 338 | } |
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| 339 | |
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| 340 | |
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| 341 | void CCalPrimaryGeneratorAction::print(G4int val){ |
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| 342 | |
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| 343 | #ifdef debug |
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| 344 | if (verboseLevel >= val) { |
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| 345 | |
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| 346 | if (generatorInput == singleRandom) { |
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| 347 | G4cout << G4endl |
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| 348 | << "**********************************************************************" << G4endl |
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| 349 | << "* *" << G4endl |
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| 350 | << "* CCalPrimaryGeneratorAction DEFAULT Random Energy/Direction setting:*" << G4endl |
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| 351 | << "* *" << G4endl |
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| 352 | << "* *" << G4endl |
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| 353 | << "* Energy in [ "<< energyMin/GeV << " - " << energyMax/GeV << "] (GeV) "<< G4endl |
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| 354 | << "* Phi angle in [ "<< phiMin << " - " << phiMax << "] (rad) "<< G4endl |
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| 355 | << "* [ "<< phiMin/degree << " - " << phiMax/degree << "] (deg) "<< G4endl |
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| 356 | << "* Eta in [ "<< etaMin << " - " << etaMax << "] "<< G4endl |
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| 357 | << "* *" << G4endl |
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| 358 | << "* *" << G4endl |
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| 359 | << "**********************************************************************" << G4endl; |
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| 360 | } else if (generatorInput == singleScan) { |
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| 361 | G4cout << G4endl |
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| 362 | << "**********************************************************************" << G4endl |
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| 363 | << "* *" << G4endl |
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| 364 | << "* CCalPrimaryGeneratorAction DEFAULT Scan Direction settings : *" << G4endl |
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| 365 | << "* *" << G4endl |
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| 366 | << "* *" << G4endl |
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| 367 | << "* Phi angle in [ " << phiMin/degree << " - " << phiMax/degree << "] (deg) " << G4endl |
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| 368 | << "* Eta in [ " << etaMin << " - " << etaMax << "] " << G4endl |
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| 369 | << "* Steps along eta " << etaSteps << " and along phi " << phiSteps << G4endl |
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| 370 | << "* *" << G4endl |
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| 371 | << "* *" << G4endl |
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| 372 | << "**********************************************************************" << G4endl; |
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| 373 | } else if (generatorInput == singleFixed) { |
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| 374 | G4cout << G4endl |
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| 375 | << "*******************************************************************" << G4endl |
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| 376 | << "* *" << G4endl |
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| 377 | << "* CCalPrimaryGeneratorAction: Current settings : *" << G4endl |
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| 378 | << "* *" << G4endl |
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| 379 | << "* " << particleGun->GetNumberOfParticles() |
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| 380 | << " " << particleGun->GetParticleDefinition()->GetParticleName() |
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| 381 | << " of " << particleGun->GetParticleEnergy()/GeV << " GeV" << G4endl |
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| 382 | << "* will be shot from " << particleGun->GetParticlePosition() << G4endl; |
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| 383 | G4cout << "* in direction " << particleGun->GetParticleMomentumDirection() << G4endl; |
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| 384 | G4cout << "* *" << G4endl |
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| 385 | << "* *" << G4endl |
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| 386 | << "*******************************************************************" << G4endl; |
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| 387 | } |
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| 388 | } |
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| 389 | #endif |
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| 390 | |
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| 391 | } |
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| 392 | |
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