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geant4/source/parameterisations/gflash/src/GFlashShowerModel.cc
T
Gabriele Cosmo 286caacf06 Import Geant4 10.0.0 source tree
2016-06-10 11:51:14 +02:00

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//
// ********************************************************************
// * License and Disclaimer *
// * *
// * The Geant4 software is copyright of the Copyright Holders of *
// * the Geant4 Collaboration. It is provided under the terms and *
// * conditions of the Geant4 Software License, included in the file *
// * LICENSE and available at http://cern.ch/geant4/license . These *
// * include a list of copyright holders. *
// * *
// * Neither the authors of this software system, nor their employing *
// * institutes,nor the agencies providing financial support for this *
// * work make any representation or warranty, express or implied, *
// * regarding this software system or assume any liability for its *
// * use. Please see the license in the file LICENSE and URL above *
// * for the full disclaimer and the limitation of liability. *
// * *
// * This code implementation is the result of the scientific and *
// * technical work of the GEANT4 collaboration. *
// * By using, copying, modifying or distributing the software (or *
// * any work based on the software) you agree to acknowledge its *
// * use in resulting scientific publications, and indicate your *
// * acceptance of all terms of the Geant4 Software license. *
// ********************************************************************
//
// $Id: GFlashShowerModel.cc 68057 2013-03-13 14:46:00Z gcosmo $
//
//
// ------------------------------------------------------------
// GEANT 4 class implementation
//
// ---------------- GFlashShowerModel ----------------
//
// Authors: E.Barberio & Joanna Weng - 9.11.2004
// ------------------------------------------------------------
#include "G4Electron.hh"
#include "G4Positron.hh"
#include "G4NeutrinoE.hh"
#include "G4NeutrinoMu.hh"
#include "G4NeutrinoTau.hh"
#include "G4AntiNeutrinoE.hh"
#include "G4AntiNeutrinoMu.hh"
#include "G4AntiNeutrinoTau.hh"
#include "G4PionZero.hh"
#include "G4VProcess.hh"
#include "G4ios.hh"
#include "G4LogicalVolume.hh"
#include "geomdefs.hh"
#include "GFlashShowerModel.hh"
#include "GFlashHomoShowerParameterisation.hh"
#include "GFlashSamplingShowerParameterisation.hh"
#include "GFlashEnergySpot.hh"
GFlashShowerModel::GFlashShowerModel(G4String modelName,
G4Envelope* envelope)
: G4VFastSimulationModel(modelName, envelope),
PBound(0), Parameterisation(0), HMaker(0)
{
FlagParamType = 0;
FlagParticleContainment = 1;
StepInX0 = 0.1;
Messenger = new GFlashShowerModelMessenger(this);
}
GFlashShowerModel::GFlashShowerModel(G4String modelName)
: G4VFastSimulationModel(modelName),
PBound(0), Parameterisation(0), HMaker(0)
{
FlagParamType =1;
FlagParticleContainment = 1;
StepInX0 = 0.1;
Messenger = new GFlashShowerModelMessenger(this);
}
GFlashShowerModel::~GFlashShowerModel()
{
delete Messenger;
}
G4bool
GFlashShowerModel::IsApplicable(const G4ParticleDefinition& particleType)
{
return
&particleType == G4Electron::ElectronDefinition() ||
&particleType == G4Positron::PositronDefinition();
}
/**********************************************************************/
/* Checks whether conditions of fast parameterisation are fullfilled */
/**********************************************************************/
G4bool GFlashShowerModel::ModelTrigger(const G4FastTrack & fastTrack )
{
G4bool select = false;
if(FlagParamType != 0)
{
G4double ParticleEnergy = fastTrack.GetPrimaryTrack()->GetKineticEnergy();
G4ParticleDefinition &ParticleType =
*(fastTrack.GetPrimaryTrack()->GetDefinition());
if(ParticleEnergy > PBound->GetMinEneToParametrise(ParticleType) &&
ParticleEnergy < PBound->GetMaxEneToParametrise(ParticleType) )
{
// check conditions depending on particle flavour
// performance to be optimized @@@@@@@
Parameterisation->GenerateLongitudinalProfile(ParticleEnergy);
select = CheckParticleDefAndContainment(fastTrack);
if (select) EnergyStop= PBound->GetEneToKill(ParticleType);
}
}
return select;
}
G4bool
GFlashShowerModel::CheckParticleDefAndContainment(const G4FastTrack& fastTrack)
{
G4bool filter=false;
G4ParticleDefinition * ParticleType =
fastTrack.GetPrimaryTrack()->GetDefinition();
if( ParticleType == G4Electron::ElectronDefinition() ||
ParticleType == G4Positron::PositronDefinition() )
{
filter=true;
if(FlagParticleContainment == 1)
{
filter=CheckContainment(fastTrack);
}
}
return filter;
}
G4bool GFlashShowerModel::CheckContainment(const G4FastTrack& fastTrack)
{
G4bool filter=false;
// track informations
G4ThreeVector DirectionShower=fastTrack.GetPrimaryTrackLocalDirection();
G4ThreeVector InitialPositionShower=fastTrack.GetPrimaryTrackLocalPosition();
G4ThreeVector OrthoShower, CrossShower;
// Returns orthogonal vector
OrthoShower = DirectionShower.orthogonal();
// Shower in direction perpendicular to OrthoShower and DirectionShower
CrossShower = DirectionShower.cross(OrthoShower);
G4double R = Parameterisation->GetAveR90();
G4double Z = Parameterisation->GetAveT90();
G4int CosPhi[4] = {1,0,-1,0};
G4int SinPhi[4] = {0,1,0,-1};
G4ThreeVector Position;
G4int NlateralInside=0;
// pointer to solid we're in
G4VSolid *SolidCalo = fastTrack.GetEnvelopeSolid();
for(int i=0; i<4 ;i++)
{
// polar coordinates
Position = InitialPositionShower +
Z*DirectionShower +
R*CosPhi[i]*OrthoShower +
R*SinPhi[i]*CrossShower ;
if(SolidCalo->Inside(Position) != kOutside)
NlateralInside++;
}
// choose to parameterise or flag when all inetc...
if(NlateralInside==4) filter=true;
// std::cout << " points = " <<NlateralInside << std::endl;
return filter;
}
void
GFlashShowerModel::DoIt(const G4FastTrack& fastTrack, G4FastStep& fastStep)
{
// parametrise electrons
if(fastTrack.GetPrimaryTrack()->GetDefinition()
== G4Electron::ElectronDefinition() ||
fastTrack.GetPrimaryTrack()->GetDefinition()
== G4Positron::PositronDefinition() )
ElectronDoIt(fastTrack,fastStep);
}
void
GFlashShowerModel::ElectronDoIt(const G4FastTrack& fastTrack,
G4FastStep& fastStep)
{
// std::cout<<"--- ElectronDoit --- "<<std::endl;
fastStep.KillPrimaryTrack();
fastStep.SetPrimaryTrackPathLength(0.0);
fastStep.SetTotalEnergyDeposited(fastTrack.GetPrimaryTrack()->
GetKineticEnergy());
//-----------------------------
// Get track parameters
//-----------------------------
//E,vect{p} and t,vec(x)
G4double Energy = fastTrack.GetPrimaryTrack()->GetKineticEnergy();
// axis of the shower, in global reference frame:
G4ThreeVector DirectionShower =
fastTrack.GetPrimaryTrack()->GetMomentumDirection();
G4ThreeVector OrthoShower, CrossShower;
OrthoShower = DirectionShower.orthogonal();
CrossShower = DirectionShower.cross(OrthoShower);
//--------------------------------
///Generate longitudinal profile
//--------------------------------
Parameterisation->GenerateLongitudinalProfile(Energy);
// performance iteration @@@@@@@
///Initialisation of long. loop variables
G4VSolid *SolidCalo = fastTrack.GetEnvelopeSolid();
G4ThreeVector pos = fastTrack.GetPrimaryTrackLocalPosition();
G4ThreeVector dir = fastTrack.GetPrimaryTrackLocalDirection();
G4double Bound = SolidCalo->DistanceToOut(pos,dir);
G4double Dz = 0.00;
G4double ZEndStep = 0.00;
G4double EnergyNow = Energy;
G4double EneIntegral = 0.00;
G4double LastEneIntegral = 0.00;
G4double DEne = 0.00;
G4double NspIntegral = 0.00;
G4double LastNspIntegral = 0.00;
G4double DNsp = 0.00;
// starting point of the shower:
G4ThreeVector PositionShower = fastTrack.GetPrimaryTrack()->GetPosition();
G4ThreeVector NewPositionShower = PositionShower;
G4double StepLenght = 0.00;
G4int NSpotDeposited =0;
//--------------------------
/// Begin Longitudinal Loop
//-------------------------
do
{
//determine step size=min(1Xo,next boundary)
G4double stepLength = StepInX0*Parameterisation->GetX0();
if(Bound < stepLength)
{
Dz = Bound;
Bound = 0.00;
}
else
{
Dz = stepLength;
Bound = Bound-Dz;
}
ZEndStep=ZEndStep+Dz;
// Determine Energy Release in Step
if(EnergyNow > EnergyStop)
{
LastEneIntegral = EneIntegral;
EneIntegral = Parameterisation->IntegrateEneLongitudinal(ZEndStep);
DEne = std::min( EnergyNow,
(EneIntegral-LastEneIntegral)*Energy);
LastNspIntegral = NspIntegral;
NspIntegral = Parameterisation->IntegrateNspLongitudinal(ZEndStep);
DNsp = std::max(1., std::floor( (NspIntegral-LastNspIntegral)
*Parameterisation->GetNspot() ));
}
// end of the shower
else
{
DEne = EnergyNow;
DNsp = std::max(1., std::floor( (1.- NspIntegral)
*Parameterisation->GetNspot() ));
}
EnergyNow = EnergyNow - DEne;
// Apply sampling fluctuation - only in sampling calorimeters
//
GFlashSamplingShowerParameterisation* sp =
dynamic_cast<GFlashSamplingShowerParameterisation*>(Parameterisation);
if (sp)
{
G4double DEneSampling = sp->ApplySampling(DEne,Energy);
DEne = DEneSampling;
}
//move particle in the middle of the step
StepLenght = StepLenght + Dz/2.00;
NewPositionShower = NewPositionShower +
StepLenght*DirectionShower;
StepLenght = Dz/2.00;
//generate spots & hits:
for (int i = 0; i < DNsp; i++)
{
NSpotDeposited++;
GFlashEnergySpot Spot;
//Spot energy: the same for all spots
Spot.SetEnergy( DEne / DNsp );
G4double PhiSpot = Parameterisation->GeneratePhi(); // phi of spot
G4double RSpot = Parameterisation // radius of spot
->GenerateRadius(i,Energy,ZEndStep-Dz/2.);
// check reference-> may be need to introduce rot matrix @@@
// Position: equally spaced in z
G4ThreeVector SpotPosition = NewPositionShower +
Dz/DNsp*DirectionShower*(i+1/2.-DNsp/2.) +
RSpot*std::cos(PhiSpot)*OrthoShower +
RSpot*std::sin(PhiSpot)*CrossShower;
Spot.SetPosition(SpotPosition);
//Generate Hits of this spot
HMaker->make(&Spot, &fastTrack);
}
}
while(EnergyNow > 0.0 && Bound> 0.0);
//---------------
/// End Loop
//---------------
}
/*
void
GFlashShowerModel::GammaDoIt(const G4FastTrack& fastTrack,
G4FastStep& fastStep)
{
if( fastTrack.GetPrimaryTrack()->GetKineticEnergy() > EnergyStop )
return;
//deposita in uno spot unico l'energia
//con andamento exp decrescente.
// Kill the particle to be parametrised
fastStep.KillPrimaryTrack();
fastStep.SetPrimaryTrackPathLength(0.0);
fastStep.SetTotalEnergyDeposited(fastTrack.GetPrimaryTrack()
->GetKineticEnergy());
// other settings????
feSpotList.clear();
//-----------------------------
// Get track parameters
//-----------------------------
// E,vect{p} and t,vec(x)
G4double Energy =
fastTrack.GetPrimaryTrack()->GetKineticEnergy();
// axis of the shower, in global reference frame:
G4ThreeVector DirectionShower =
fastTrack.GetPrimaryTrack()->GetMomentumDirection();
// starting point of the shower:
G4ThreeVector PositionShower =
fastTrack.GetPrimaryTrack()->GetPosition();
//G4double DEneSampling = Parameterisation->ApplySampling(Energy,Energy);
//if(DEneSampling <= 0.00) DEneSampling=Energy;
if(Energy > 0.0)
{
G4double dist = Parameterisation->GenerateExponential(Energy);
GFlashEnergySpot Spot;
Spot.SetEnergy( Energy );
G4ThreeVector SpotPosition = PositionShower + dist*DirectionShower;
Spot.SetPosition(SpotPosition);
// Record the Spot:
feSpotList.push_back(Spot);
//Generate Hits of this spot
HMaker->make(Spot);
}
}
*/
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