Gabriele Cosmo
550 lines
20 KiB
Plaintext
550 lines
20 KiB
Plaintext
// This code implementation is the intellectual property of
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// the GEANT4 collaboration.
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//
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// By copying, distributing or modifying the Program (or any work
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// based on the Program) you indicate your acceptance of this statement,
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// and all its terms.
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//
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// $Id: G4SteppingManager.icc,v 1.4 1999/12/15 14:53:57 gunter Exp $
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// GEANT4 tag $Name: geant4-01-01 $
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//
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//
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//---------------------------------------------------------------
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//
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// G4SteppingManager.icc
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//
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// Description:
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// This class represents the manager who steers to move the give
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// particle from the TrackingManger by one Step.
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//
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// Contact:
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// Questions and comments to this code should be sent to
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// Katsuya Amako (e-mail: Katsuya.Amako@kek.jp)
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// Takashi Sasaki (e-mail: Takashi.Sasaki@kek.jp)
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//
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//---------------------------------------------------------------
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#include "G4UImanager.hh"
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#include "G4ForceCondition.hh"
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#include "G4GPILSelection.hh"
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#include "G4SteppingControl.hh"
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#include "G4TransportationManager.hh"
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#include "G4UserLimits.hh"
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#include "G4EnergyLossTables.hh"
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/////////////////////////////////////////////////
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inline void G4SteppingManager::GetProcessNumber()
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/////////////////////////////////////////////////
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{
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G4ProcessManager* pm= fTrack->GetDefinition()->GetProcessManager();
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// AtRestDoits
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MAXofAtRestLoops = pm->GetAtRestProcessVector()->entries();
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fAtRestDoItVector = pm->GetAtRestProcessVector(typeDoIt);
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fAtRestGetPhysIntVector = pm->GetAtRestProcessVector(typeGPIL);
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// AlongStepDoits
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MAXofAlongStepLoops = pm->GetAlongStepProcessVector()->entries();
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fAlongStepDoItVector = pm->GetAlongStepProcessVector(typeDoIt);
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fAlongStepGetPhysIntVector = pm->GetAlongStepProcessVector(typeGPIL);
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// PostStepDoits
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MAXofPostStepLoops = pm->GetPostStepProcessVector()->entries();
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fPostStepDoItVector = pm->GetPostStepProcessVector(typeDoIt);
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fPostStepGetPhysIntVector = pm->GetPostStepProcessVector(typeGPIL);
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}
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// ************************************************************************
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//
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// Private Member Functions
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//
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// ************************************************************************
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/////////////////////////////////////////////////////////
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inline void G4SteppingManager::DefinePhysicalStepLength()
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/////////////////////////////////////////////////////////
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{
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// ReSet the counter etc.
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PhysicalStep = DBL_MAX; // Initialize by a huge number
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physIntLength = DBL_MAX; // Initialize by a huge number
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#ifdef G4VERBOSE
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// !!!!! Verbose
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if(verboseLevel>0) fVerbose->DPSLStarted();
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#endif
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// Obtain the user defined maximum allowed Step in the volume
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// 1997.12.13 adds argument for GetMaxAllowedStep by K.Kurashige
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G4UserLimits* ul= fCurrentVolume->GetLogicalVolume()->GetUserLimits();
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if (ul) {
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physIntLength = ul->GetMaxAllowedStep(*fTrack);
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#ifdef G4VERBOSE
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// !!!!! Verbose
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if(verboseLevel>0) fVerbose->DPSLUserLimit();
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#endif
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}
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if(physIntLength < PhysicalStep ){
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PhysicalStep = physIntLength;
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fStepStatus = fUserDefinedLimit;
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fStep->GetPostStepPoint()
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->SetProcessDefinedStep(NULL);
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// Take note that the process pointer is 'NULL' if the Step
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// is defined by the user defined limit.
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}
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// GetPhysicalInteractionLength for PostStep
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fPostStepDoItProcTriggered = MAXofPostStepLoops;
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for(size_t np=0; np < MAXofPostStepLoops; np++){
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fCurrentProcess = (*fPostStepGetPhysIntVector)(np);
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if (fCurrentProcess== NULL) {
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(*fSelectedPostStepDoItVector)(np) = 0;
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continue;
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} // NULL means the process is inactivated by a user on fly.
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physIntLength = fCurrentProcess->
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PostStepGetPhysicalInteractionLength( *fTrack,
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fPreviousStepSize,
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&fCondition );
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#ifdef G4VERBOSE
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// !!!!! Verbose
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if(verboseLevel>0) fVerbose->DPSLPostStep();
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#endif
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switch (fCondition) {
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case ExclusivelyForced:
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(*fSelectedPostStepDoItVector)(np) = 4;
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fStepStatus = fExclusivelyForcedProc;
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fStep->GetPostStepPoint()
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->SetProcessDefinedStep(fCurrentProcess);
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break;
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case Conditionally:
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(*fSelectedPostStepDoItVector)(np) = 3;
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break;
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case Forced:
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(*fSelectedPostStepDoItVector)(np) = 2;
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break;
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default:
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(*fSelectedPostStepDoItVector)(np) = 0;
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if(physIntLength < PhysicalStep ){
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PhysicalStep = physIntLength;
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fStepStatus = fPostStepDoItProc;
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fPostStepDoItProcTriggered = G4int(np);
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fStep->GetPostStepPoint()
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->SetProcessDefinedStep(fCurrentProcess);
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}
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}
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if (fCondition==ExclusivelyForced) return; // Take note the 'return' at here !!!
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}
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if(fPostStepDoItProcTriggered<MAXofPostStepLoops)
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(*fSelectedPostStepDoItVector)(fPostStepDoItProcTriggered) = 1;
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// GetPhysicalInteractionLength for AlongStep
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proposedSafety = DBL_MAX;
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G4double safetyProposedToAndByProcess = proposedSafety;
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for(size_t kp=0; kp < MAXofAlongStepLoops; kp++){
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fCurrentProcess = (*fAlongStepGetPhysIntVector)(kp);
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if (fCurrentProcess== NULL) continue;
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// NULL means the process is inactivated by a user on fly.
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physIntLength = fCurrentProcess->
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AlongStepGetPhysicalInteractionLength( *fTrack,
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fPreviousStepSize,
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PhysicalStep,
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safetyProposedToAndByProcess,
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&fGPILSelection );
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#ifdef G4VERBOSE
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// !!!!! Verbose
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if(verboseLevel>0) fVerbose->DPSLAlongStep();
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#endif
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if(physIntLength < PhysicalStep){
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PhysicalStep = physIntLength;
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// Check if the process wants to be the GPIL winner. For example,
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// multi-scattering proposes Step limit, but won't be the winner.
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if(fGPILSelection==CandidateForSelection){
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fStepStatus = fAlongStepDoItProc;
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fStep->GetPostStepPoint()
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->SetProcessDefinedStep(fCurrentProcess);
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}
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// Transportation is assumed to be the last process in the vector
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if(kp == MAXofAlongStepLoops-1) fStepStatus = fGeomBoundary;
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}
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// Make sure to check the safety, even if Step is not limited
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// by this process. J. Apostolakis, June 20, 1998
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//
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if (safetyProposedToAndByProcess < proposedSafety)
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// proposedSafety keeps the smallest value:
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proposedSafety = safetyProposedToAndByProcess;
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else
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// safetyProposedToAndByProcess always proposes a valid safety:
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safetyProposedToAndByProcess = proposedSafety;
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}
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} // void G4SteppingManager::DefinePhysicalStepLength() //
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//////////////////////////////////////////////////////
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inline void G4SteppingManager::InvokeAtRestDoItProcs()
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//////////////////////////////////////////////////////
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{
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// Select the rest process which has the shortest time before
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// it is invoked. In rest processes, GetPhysicalInteractionLength()
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// returns the time before a process occurs.
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G4double lifeTime, shortestLifeTime;
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fN2ndariesAtRestDoIt = 0;
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shortestLifeTime = DBL_MAX;
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for( size_t ri=0 ; ri < MAXofAtRestLoops ; ri++ ){
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fCurrentProcess = (*fAtRestGetPhysIntVector)(ri);
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if (fCurrentProcess== NULL) {
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(*fSelectedAtRestDoItVector)(ri) = 0;
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continue;
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} // NULL means the process is inactivated by a user on fly.
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lifeTime =
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fCurrentProcess->AtRestGetPhysicalInteractionLength(
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*fTrack,
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&fCondition );
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if(fCondition==Forced){
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(*fSelectedAtRestDoItVector)(ri) = 2;
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}
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else{
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(*fSelectedAtRestDoItVector)(ri) = 0;
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if(lifeTime < shortestLifeTime ){
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shortestLifeTime = lifeTime;
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fAtRestDoItProcTriggered = G4int(int(ri));
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}
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}
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}
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(*fSelectedAtRestDoItVector)(fAtRestDoItProcTriggered) = 1;
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fStep->SetStepLength( 0. ); //the particle has stopped
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fTrack->SetStepLength( 0. );
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// invoke selected process
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for(size_t np=0; np < MAXofAtRestLoops; np++){
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//
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// Note: DoItVector has inverse order against GetPhysIntVector
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// and SelectedAtRestDoItVector.
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//
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if((*fSelectedAtRestDoItVector)(MAXofAtRestLoops-np-1) != 0){
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fCurrentProcess = (*fAtRestDoItVector)(np);
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fParticleChange
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= fCurrentProcess->AtRestDoIt( *fTrack, *fStep);
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// Set the current process as a process which defined this Step length
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fStep->GetPostStepPoint()
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->SetProcessDefinedStep(fCurrentProcess);
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// Update Step
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fParticleChange->UpdateStepForAtRest(fStep);
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// Now Store the secondaries from ParticleChange to SecondaryList
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G4Track* tempSecondaryTrack;
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G4bool tApplyCutFlag;
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G4double tProdThreshold;
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G4Material* tMaterial;
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G4double tBelowCutEnergyAndSafety;
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fN2ndariesAtRestDoIt = fParticleChange->GetNumberOfSecondaries();
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for(G4int DSecLoop=0 ; DSecLoop< fN2ndariesAtRestDoIt; DSecLoop++){
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tempSecondaryTrack = fParticleChange->GetSecondary(DSecLoop);
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tApplyCutFlag = tempSecondaryTrack->GetDefinition()
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->GetApplyCutsFlag();
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// Check if the particle should be passed without coherent cut
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if(tApplyCutFlag){
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tBelowCutEnergyAndSafety = false;
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tMaterial = fPostStepPoint->GetMaterial();
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tProdThreshold = tempSecondaryTrack->GetDefinition()
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-> GetEnergyThreshold(tMaterial);
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if( tempSecondaryTrack->GetKineticEnergy()<tProdThreshold ){
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G4double currentRange
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= G4EnergyLossTables::GetRange(
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tempSecondaryTrack->GetDefinition(),
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tempSecondaryTrack->GetKineticEnergy(),
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tMaterial
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);
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if (currentRange < CalculateSafety() ){
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tBelowCutEnergyAndSafety = true;
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}
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}
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if( tBelowCutEnergyAndSafety ){
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if( !(tempSecondaryTrack->IsGoodForTracking()) ){
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//// G4cout << "!! Warning - G4SteppingManager:" << G4endl;
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//// << " This physics process generated a secondary"
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//// << " of which energy is below cut but"
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//// << " GoodForTracking is off !!!!!" << G4endl;
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// Add kinetic energy to the total energy deposit
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fStep->AddTotalEnergyDeposit(
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tempSecondaryTrack->GetKineticEnergy() );
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tempSecondaryTrack->SetKineticEnergy(0.0);
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}
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}
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}
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// If this 2ndry particle has 'zero' kinetic energy, make sure
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// it invokes a rest process at the beginning of the tracking
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if(tempSecondaryTrack->GetKineticEnergy() <= 0.){
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tempSecondaryTrack->SetTrackStatus( fStopButAlive );
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}
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// Set parentID
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tempSecondaryTrack->SetParentID( fTrack->GetTrackID() );
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// Set the process pointer which created this track
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tempSecondaryTrack->SetCreatorProcess( fCurrentProcess );
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fSecondary->insert( tempSecondaryTrack );
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}
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// clear ParticleChange
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fParticleChange->Clear();
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} //if(fSelectedAtRestDoItVector(np) != 0){
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} //for(size_t np=0; np < MAXofAtRestLoops; np++){
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fStep->UpdateTrack();
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fTrack->SetTrackStatus( fStopAndKill );
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}
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/////////////////////////////////////////////////////////
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inline void G4SteppingManager::InvokeAlongStepDoItProcs()
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/////////////////////////////////////////////////////////
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{
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// If the current Step is defined by a 'ExclusivelyForced'
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// PostStepDoIt, then don't invoke any AlongStepDoIt
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if(fStepStatus == fExclusivelyForcedProc){
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return; // Take note 'return' at here !!!
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}
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// Invoke the all active continuous processes
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fN2ndariesAlongStepDoIt = 0;
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for( size_t ci=0 ; ci<MAXofAlongStepLoops ; ci++ ){
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fCurrentProcess = (*fAlongStepDoItVector)(ci);
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if (fCurrentProcess== NULL) continue;
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// NULL means the process is inactivated by a user on fly.
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fParticleChange
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= fCurrentProcess->AlongStepDoIt( *fTrack, *fStep );
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// Update the PostStepPoint of Step according to ParticleChange
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fParticleChange->UpdateStepForAlongStep(fStep);
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#ifdef G4VERBOSE
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// !!!!! Verbose
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if(verboseLevel>0) fVerbose->AlongStepDoItOneByOne();
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#endif
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// Now Store the secondaries from ParticleChange to SecondaryList
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G4Track* tempSecondaryTrack;
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G4bool tApplyCutFlag;
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G4double tProdThreshold;
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G4Material* tMaterial;
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G4double tBelowCutEnergyAndSafety;
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fN2ndariesAlongStepDoIt = fParticleChange->GetNumberOfSecondaries();
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for(G4int DSecLoop=0 ; DSecLoop< fN2ndariesAlongStepDoIt; DSecLoop++){
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tempSecondaryTrack = fParticleChange->GetSecondary(DSecLoop);
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tApplyCutFlag = tempSecondaryTrack->GetDefinition()
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->GetApplyCutsFlag();
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// Check if the particle should be passed without coherent cut
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if(tApplyCutFlag){
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tBelowCutEnergyAndSafety = false;
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tMaterial = fPostStepPoint->GetMaterial();
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tProdThreshold = tempSecondaryTrack->GetDefinition()
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-> GetEnergyThreshold(tMaterial);
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if( tempSecondaryTrack->GetKineticEnergy()<tProdThreshold ){
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G4double currentRange
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= G4EnergyLossTables::GetRange(
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tempSecondaryTrack->GetDefinition(),
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tempSecondaryTrack->GetKineticEnergy(),
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tMaterial
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);
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if (currentRange < CalculateSafety() ){
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tBelowCutEnergyAndSafety = true;
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}
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}
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if( tBelowCutEnergyAndSafety ){
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if( !(tempSecondaryTrack->IsGoodForTracking()) ){
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//// G4cout << "!! Warning - G4SteppingManager:" << G4endl;
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//// << " This physics process generated a secondary"
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//// << " of which energy is below cut but"
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//// << " GoodForTracking is off !!!!!" << G4endl;
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// Add kinetic energy to the total energy deposit
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fStep->AddTotalEnergyDeposit(
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tempSecondaryTrack->GetKineticEnergy() );
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tempSecondaryTrack->SetKineticEnergy(0.0);
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}
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}
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}
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// If this 2ndry particle has 'zero' kinetic energy, make sure
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// it invokes a rest process at the beginning of the tracking
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if(tempSecondaryTrack->GetKineticEnergy() <= 0.){
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tempSecondaryTrack->SetTrackStatus( fStopButAlive );
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}
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// Set parentID
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tempSecondaryTrack->SetParentID( fTrack->GetTrackID() );
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// Set the process pointer which created this track
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tempSecondaryTrack->SetCreatorProcess( fCurrentProcess );
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fSecondary->insert( tempSecondaryTrack );
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}
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// Set the track status according to what the process defined
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fTrack->SetTrackStatus( fParticleChange->GetStatusChange() );
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// clear ParticleChange
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fParticleChange->Clear();
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}
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}
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////////////////////////////////////////////////////////
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inline void G4SteppingManager::InvokePostStepDoItProcs()
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////////////////////////////////////////////////////////
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{
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// Invoke the specified discrete processes
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fN2ndariesPostStepDoIt = 0;
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for(size_t np=0; np < MAXofPostStepLoops; np++){
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//
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// Note: DoItVector has inverse order against GetPhysIntVector
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// and SelectedPostStepDoItVector.
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//
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size_t npGPIL = MAXofPostStepLoops-np-1;
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G4int tmp= (*fSelectedPostStepDoItVector)(npGPIL);
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if(tmp != 0){
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if ( ((tmp == 1) && (fStepStatus == fPostStepDoItProc)) ||
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((tmp == 2) && (fStepStatus != fExclusivelyForcedProc)) ||
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((tmp == 3) && (fStepStatus == fAlongStepDoItProc)) ||
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((tmp == 4) && (fStepStatus == fExclusivelyForcedProc)) ) {
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fCurrentProcess = (*fPostStepDoItVector)(np);
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fParticleChange
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= fCurrentProcess->PostStepDoIt( *fTrack, *fStep);
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// Update PostStepPoint of Step according to ParticleChange
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fParticleChange->UpdateStepForPostStep(fStep);
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#ifdef G4VERBOSE
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// !!!!! Verbose
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if(verboseLevel>0) fVerbose->PostStepDoItOneByOne();
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#endif
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// Update G4Track according to ParticleChange after each PostStepDoIt
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fStep->UpdateTrack();
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// Update safety after each invocation of PostStepDoIts
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fStep->GetPostStepPoint()->SetSafety( CalculateSafety() );
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// Now Store the secondaries from ParticleChange to SecondaryList
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G4Track* tempSecondaryTrack;
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G4bool tApplyCutFlag;
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G4double tProdThreshold;
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G4Material* tMaterial;
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G4double tBelowCutEnergyAndSafety;
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fN2ndariesPostStepDoIt = fParticleChange->GetNumberOfSecondaries();
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for(G4int DSecLoop=0 ; DSecLoop< fN2ndariesPostStepDoIt; DSecLoop++){
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tempSecondaryTrack = fParticleChange->GetSecondary(DSecLoop);
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tApplyCutFlag = tempSecondaryTrack->GetDefinition()
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->GetApplyCutsFlag();
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// Check if the particle should be passed without coherent cut
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if(tApplyCutFlag){
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tBelowCutEnergyAndSafety = false;
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tMaterial = fPostStepPoint->GetMaterial();
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tProdThreshold = tempSecondaryTrack->GetDefinition()
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-> GetEnergyThreshold(tMaterial);
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if( tempSecondaryTrack->GetKineticEnergy()<tProdThreshold ){
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G4double currentRange
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= G4EnergyLossTables::GetRange(
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tempSecondaryTrack->GetDefinition(),
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tempSecondaryTrack->GetKineticEnergy(),
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tMaterial
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);
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if (currentRange < CalculateSafety() ){
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tBelowCutEnergyAndSafety = true;
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}
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}
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if( tBelowCutEnergyAndSafety ){
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if( !(tempSecondaryTrack->IsGoodForTracking()) ){
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//// G4cout << "!! Warning - G4SteppingManager:" << G4endl;
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//// << " This physics process generated a secondary"
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//// << " of which energy is below cut but"
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//// << " GoodForTracking is off !!!!!" << G4endl;
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// Add kinetic energy to the total energy deposit
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fStep->AddTotalEnergyDeposit(
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tempSecondaryTrack->GetKineticEnergy() );
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tempSecondaryTrack->SetKineticEnergy(0.0);
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}
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}
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|
}
|
|
|
|
// If this 2ndry particle has 'zero' kinetic energy, make sure
|
|
// it invokes a rest process at the beginning of the tracking
|
|
if(tempSecondaryTrack->GetKineticEnergy() <= 0.){
|
|
tempSecondaryTrack->SetTrackStatus( fStopButAlive );
|
|
}
|
|
|
|
// Set parentID
|
|
tempSecondaryTrack->SetParentID( fTrack->GetTrackID() );
|
|
|
|
// Set the process pointer which created this track
|
|
tempSecondaryTrack->SetCreatorProcess( fCurrentProcess );
|
|
|
|
fSecondary->insert( tempSecondaryTrack );
|
|
}
|
|
|
|
// Set the track status according to what the process defined
|
|
fTrack->SetTrackStatus( fParticleChange->GetStatusChange() );
|
|
|
|
// clear ParticleChange
|
|
fParticleChange->Clear();
|
|
}
|
|
} //if(*fSelectedPostStepDoItVector(np) != 0){
|
|
|
|
// Exit from PostStepLoop if the track has been killed
|
|
if(fTrack->GetTrackStatus() == fStopAndKill) break;
|
|
|
|
} //for(size_t np=0; np < MAXofPostStepLoops; np++){
|
|
}
|
|
|