[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 | // $Id: HadrontherapyPositronPrimaryGeneratorAction.cc; May 2005 |
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| 27 | // ---------------------------------------------------------------------------- |
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| 28 | // GEANT 4 - Hadrontherapy example |
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| 29 | // ---------------------------------------------------------------------------- |
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| 30 | // Code developed by: |
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| 31 | // |
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| 32 | // G.A.P. Cirrone(a)*, F. Di Rosa(a), S. Guatelli(b), G. Russo(a) |
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| 33 | // |
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| 34 | // (a) Laboratori Nazionali del Sud |
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| 35 | // of the National Institute for Nuclear Physics, Catania, Italy |
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| 36 | // (b) National Institute for Nuclear Physics Section of Genova, genova, Italy |
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| 37 | // |
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| 38 | // * cirrone@lns.infn.it |
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| 39 | // ---------------------------------------------------------------------------- |
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| 40 | #include "HadrontherapyPrimaryGeneratorAction.hh" |
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| 41 | #include "HadrontherapyPrimaryGeneratorMessenger.hh" |
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| 42 | #include "G4Event.hh" |
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| 43 | #include "G4ParticleGun.hh" |
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| 44 | #include "G4ParticleTable.hh" |
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| 45 | #include "G4ParticleDefinition.hh" |
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| 46 | #include "Randomize.hh" |
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| 47 | |
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| 48 | HadrontherapyPrimaryGeneratorAction::HadrontherapyPrimaryGeneratorAction() |
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| 49 | { |
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| 50 | // Define the messenger |
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| 51 | gunMessenger = new HadrontherapyPrimaryGeneratorMessenger(this); |
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| 52 | |
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| 53 | particleGun = new G4ParticleGun(); |
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| 54 | |
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| 55 | SetDefaultPrimaryParticle(); |
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| 56 | } |
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| 57 | |
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| 58 | HadrontherapyPrimaryGeneratorAction::~HadrontherapyPrimaryGeneratorAction() |
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| 59 | { |
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| 60 | delete particleGun; |
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| 61 | |
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| 62 | delete gunMessenger; |
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| 63 | } |
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| 64 | |
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| 65 | void HadrontherapyPrimaryGeneratorAction::SetDefaultPrimaryParticle() |
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| 66 | { |
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| 67 | // **************************** |
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| 68 | // Default primary particle |
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| 69 | // **************************** |
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| 70 | |
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| 71 | // Define primary particles: protons |
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| 72 | G4ParticleTable* particleTable = G4ParticleTable::GetParticleTable(); |
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| 73 | G4ParticleDefinition* particle = particleTable -> FindParticle("proton"); |
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| 74 | particleGun -> SetParticleDefinition(particle); |
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| 75 | |
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| 76 | // Define the energy of primary particles: |
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| 77 | // gaussian distribution with mean energy = 64.55 *MeV |
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| 78 | // and sigma = 300.0 *keV |
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| 79 | G4double defaultMeanKineticEnergy = 63.50 *MeV; |
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| 80 | meanKineticEnergy = defaultMeanKineticEnergy; |
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| 81 | |
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| 82 | G4double defaultsigmaEnergy = 300.0 *keV; |
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| 83 | sigmaEnergy = defaultsigmaEnergy; |
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| 84 | |
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| 85 | // Define the parameters of the initial position: |
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| 86 | // the y, z coordinates have a gaussian distribution |
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| 87 | G4double defaultX0 = -3248.59 *mm; |
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| 88 | X0 = defaultX0; |
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| 89 | |
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| 90 | G4double defaultY0 = 0.0 *mm; |
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| 91 | Y0 = defaultY0; |
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| 92 | |
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| 93 | G4double defaultZ0 = 0.0 *mm; |
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| 94 | Z0 = defaultZ0; |
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| 95 | |
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| 96 | G4double defaultsigmaY = 1. *mm; |
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| 97 | sigmaY = defaultsigmaY; |
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| 98 | |
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| 99 | G4double defaultsigmaZ = 1. *mm; |
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| 100 | sigmaZ = defaultsigmaZ; |
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| 101 | |
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| 102 | // Define the parameters of the momentum of primary particles: |
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| 103 | // The momentum along the y and z axis has a gaussian distribution |
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| 104 | G4double defaultsigmaMomentumY = 0.0; |
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| 105 | sigmaMomentumY = defaultsigmaMomentumY; |
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| 106 | |
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| 107 | G4double defaultsigmaMomentumZ = 0.0; |
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| 108 | sigmaMomentumZ = defaultsigmaMomentumZ; |
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| 109 | } |
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| 110 | |
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| 111 | void HadrontherapyPrimaryGeneratorAction::GeneratePrimaries(G4Event* anEvent) |
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| 112 | { |
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| 113 | // **************************************** |
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| 114 | // Set the beam angular apread |
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| 115 | // and spot size |
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| 116 | // beam spot size |
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| 117 | // **************************************** |
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| 118 | |
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| 119 | // Set the position of the primary particles |
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| 120 | G4double x = X0; |
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| 121 | G4double y = Y0; |
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| 122 | G4double z = Z0; |
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| 123 | |
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| 124 | if ( sigmaY > 0.0 ) |
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| 125 | { |
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| 126 | y += G4RandGauss::shoot( Y0, sigmaY ); |
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| 127 | } |
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| 128 | |
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| 129 | if ( sigmaZ > 0.0 ) |
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| 130 | { |
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| 131 | z += G4RandGauss::shoot( Z0, sigmaZ ); |
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| 132 | } |
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| 133 | |
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| 134 | particleGun -> SetParticlePosition(G4ThreeVector( x , y , z ) ); |
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| 135 | |
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| 136 | // ******************************************** |
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| 137 | // Set the beam energy and energy spread |
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| 138 | // ******************************************** |
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| 139 | |
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| 140 | G4double kineticEnergy = G4RandGauss::shoot( meanKineticEnergy, sigmaEnergy ); |
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| 141 | particleGun -> SetParticleEnergy ( kineticEnergy ); |
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| 142 | |
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| 143 | // Set the direction of the primary particles |
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| 144 | G4double momentumX = 1.0; |
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| 145 | G4double momentumY = 0.0; |
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| 146 | G4double momentumZ = 0.0; |
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| 147 | |
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| 148 | if ( sigmaMomentumY > 0.0 ) |
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| 149 | { |
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| 150 | momentumY += G4RandGauss::shoot( 0., sigmaMomentumY ); |
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| 151 | } |
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| 152 | if ( sigmaMomentumZ > 0.0 ) |
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| 153 | { |
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| 154 | momentumZ += G4RandGauss::shoot( 0., sigmaMomentumZ ); |
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| 155 | } |
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| 156 | |
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| 157 | particleGun -> SetParticleMomentumDirection( G4ThreeVector(momentumX,momentumY,momentumZ) ); |
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| 158 | |
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| 159 | // Generate a primary particle |
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| 160 | particleGun -> GeneratePrimaryVertex( anEvent ); |
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| 161 | } |
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| 162 | |
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| 163 | void HadrontherapyPrimaryGeneratorAction::SetmeanKineticEnergy (G4double val ) |
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| 164 | { meanKineticEnergy = val;} |
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| 165 | |
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| 166 | void HadrontherapyPrimaryGeneratorAction::SetsigmaEnergy (G4double val ) |
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| 167 | { sigmaEnergy = val;} |
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| 168 | |
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| 169 | void HadrontherapyPrimaryGeneratorAction::SetXposition (G4double val ) |
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| 170 | { X0 = val;} |
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| 171 | |
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| 172 | void HadrontherapyPrimaryGeneratorAction::SetYposition (G4double val ) |
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| 173 | { Y0 = val;} |
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| 174 | |
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| 175 | void HadrontherapyPrimaryGeneratorAction::SetZposition (G4double val ) |
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| 176 | { Z0 = val;} |
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| 177 | |
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| 178 | void HadrontherapyPrimaryGeneratorAction::SetsigmaY (G4double val ) |
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| 179 | { sigmaY = val;} |
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| 180 | |
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| 181 | void HadrontherapyPrimaryGeneratorAction::SetsigmaZ (G4double val ) |
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| 182 | { sigmaZ = val;} |
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| 183 | |
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| 184 | void HadrontherapyPrimaryGeneratorAction::SetsigmaMomentumY (G4double val ) |
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| 185 | { sigmaMomentumY = val;} |
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| 186 | |
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| 187 | void HadrontherapyPrimaryGeneratorAction::SetsigmaMomentumZ (G4double val ) |
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| 188 | { sigmaMomentumZ = val;} |
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