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examples
extended
eventgenerator
particleGun
src
PrimaryGeneratorAction4.cc
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//
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// ********************************************************************
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// * License and Disclaimer *
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// * *
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// * The Geant4 software is copyright of the Copyright Holders of *
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// * the Geant4 Collaboration. It is provided under the terms and *
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// * conditions of the Geant4 Software License, included in the file *
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// * LICENSE and available at http://cern.ch/geant4/license . These *
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// * include a list of copyright holders. *
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// * *
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// * Neither the authors of this software system, nor their employing *
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// * institutes,nor the agencies providing financial support for this *
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// * work make any representation or warranty, express or implied, *
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// * regarding this software system or assume any liability for its *
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// * use. Please see the license in the file LICENSE and URL above *
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// * for the full disclaimer and the limitation of liability. *
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// * *
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// * This code implementation is the result of the scientific and *
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// * technical work of the GEANT4 collaboration. *
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// * By using, copying, modifying or distributing the software (or *
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// * any work based on the software) you agree to acknowledge its *
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// * use in resulting scientific publications, and indicate your *
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// * acceptance of all terms of the Geant4 Software license. *
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// ********************************************************************
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//
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//
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//
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// $Id: PrimaryGeneratorAction4.cc 83897 2014-09-22 14:46:00Z gcosmo $
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//
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//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
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//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
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#include "
PrimaryGeneratorAction4.hh
"
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#include "PrimaryGeneratorAction.hh"
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#include "
G4Event.hh
"
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#include "
G4ParticleGun.hh
"
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#include "
G4ParticleTable.hh
"
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#include "
G4ParticleDefinition.hh
"
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#include "
G4PhysicalConstants.hh
"
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#include "
G4SystemOfUnits.hh
"
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#include "
Randomize.hh
"
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//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
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PrimaryGeneratorAction4::PrimaryGeneratorAction4
(
G4ParticleGun
* gun)
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: fParticleGun(gun)
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{
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// vertex volume
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//
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G4double
Rmin = 2.*
mm
;
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G4double
Rmax = 8.*
mm
;
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fRmin3
= Rmin*Rmin*Rmin;
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fRmax3
= Rmax*Rmax*Rmax;
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//opening angle
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//
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G4double
alphaMin = 0.*
deg
;
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G4double
alphaMax = 60.*
deg
;
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fCosAlphaMin
= std::cos(alphaMin);
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fCosAlphaMax
= std::cos(alphaMax);
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}
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//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
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PrimaryGeneratorAction4::~PrimaryGeneratorAction4
()
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{ }
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//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
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void
PrimaryGeneratorAction4::GeneratePrimaries
(
G4Event
* anEvent)
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{
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//vertex position uniform in spherical shell
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//
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G4double
cosTheta = 2*
G4UniformRand
() - 1;
//cosTheta uniform in [0, pi]
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G4double
sinTheta = std::sqrt(1. - cosTheta*cosTheta);
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G4double
phi =
twopi
*
G4UniformRand
();
//phi uniform in [0, 2*pi]
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G4ThreeVector
ur(sinTheta*std::cos(phi),sinTheta*std::sin(phi),cosTheta);
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G4double
R3 =
fRmin3
+
G4UniformRand
()*(
fRmax3
-
fRmin3
);
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G4double
R
= std::pow(R3, 1./3);
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fParticleGun
->
SetParticlePosition
(R*ur);
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//particle direction uniform around ur
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//
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//1- in World frame
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//cosAlpha uniform in [cos(alphaMin), cos(alphaMax)]
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G4double
cosAlpha =
fCosAlphaMin
-
G4UniformRand
()*(
fCosAlphaMin
-
fCosAlphaMax
);
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G4double
sinAlpha = std::sqrt(1. - cosAlpha*cosAlpha);
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G4double
psi =
twopi
*
G4UniformRand
();
//psi uniform in (0,2*pi)
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G4ThreeVector
dir
(sinAlpha*std::cos(psi),sinAlpha*std::sin(psi),cosAlpha);
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//2- rotate dir (rotateUz transforms uz to ur)
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dir.
rotateUz
(ur);
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fParticleGun
->
SetParticleMomentumDirection
(dir);
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//energy
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//
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fParticleGun
->
SetParticleEnergy
(1*
MeV
);
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//create vertex
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//
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fParticleGun
->
GeneratePrimaryVertex
(anEvent);
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}
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//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
G4PhysicalConstants.hh
G4ParticleGun.hh
MeV
static constexpr double MeV
Definition:
G4SIunits.hh:214
Randomize.hh
G4ParticleGun
Definition:
G4ParticleGun.hh:62
PrimaryGeneratorAction4.hh
Definition of the PrimaryGeneratorAction4 class.
mm
static constexpr double mm
Definition:
G4SIunits.hh:115
CLHEP::Hep3Vector::rotateUz
Hep3Vector & rotateUz(const Hep3Vector &)
Definition:
ThreeVector.cc:38
PrimaryGeneratorAction4::fRmax3
G4double fRmax3
Definition:
PrimaryGeneratorAction4.hh:63
G4VPrimaryGenerator::SetParticlePosition
void SetParticlePosition(G4ThreeVector aPosition)
Definition:
G4VPrimaryGenerator.hh:69
G4Event.hh
PrimaryGeneratorAction4::GeneratePrimaries
void GeneratePrimaries(G4Event *)
Definition:
PrimaryGeneratorAction4.cc:73
G4double
double G4double
Definition:
G4Types.hh:76
G4Event
Definition:
G4Event.hh:52
deg
static constexpr double deg
Definition:
G4SIunits.hh:152
PrimaryGeneratorAction4::fCosAlphaMax
G4double fCosAlphaMax
Definition:
PrimaryGeneratorAction4.hh:65
G4UniformRand
#define G4UniformRand()
Definition:
Randomize.hh:53
twopi
static constexpr double twopi
Definition:
G4SIunits.hh:76
R
Double_t R
Definition:
TG43_relative_dose.C:16
G4SystemOfUnits.hh
PrimaryGeneratorAction4::~PrimaryGeneratorAction4
~PrimaryGeneratorAction4()
Definition:
PrimaryGeneratorAction4.cc:68
G4ParticleTable.hh
PrimaryGeneratorAction4::PrimaryGeneratorAction4
PrimaryGeneratorAction4(G4ParticleGun *)
Definition:
PrimaryGeneratorAction4.cc:48
CLHEP::Hep3Vector
Definition:
ThreeVector.h:41
dir
TDirectory * dir
Definition:
human_phantom/macro.C:5
PrimaryGeneratorAction4::fParticleGun
G4ParticleGun * fParticleGun
Definition:
PrimaryGeneratorAction4.hh:67
G4ParticleGun::GeneratePrimaryVertex
virtual void GeneratePrimaryVertex(G4Event *evt)
Definition:
G4ParticleGun.cc:212
G4ParticleDefinition.hh
G4ParticleGun::SetParticleEnergy
void SetParticleEnergy(G4double aKineticEnergy)
Definition:
G4ParticleGun.cc:132
PrimaryGeneratorAction4::fCosAlphaMin
G4double fCosAlphaMin
Definition:
PrimaryGeneratorAction4.hh:64
PrimaryGeneratorAction4::fRmin3
G4double fRmin3
Definition:
PrimaryGeneratorAction4.hh:59
G4ParticleGun::SetParticleMomentumDirection
void SetParticleMomentumDirection(G4ParticleMomentum aMomentumDirection)
Definition:
G4ParticleGun.hh:96
다음에 의해 생성됨 :
1.8.5