G4VRestDiscreteProcess.cc

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00025 //
00026 //
00027 // $Id$
00028 //
00029 // 
00030 // --------------------------------------------------------------
00031 //      GEANT 4 class implementation file 
00032 //
00033 //      History: first implementation, based on object model of
00034 //      2nd December 1995, G.Cosmo
00035 // --------------------------------------------------------------
00036 //   New Physics scheme           8 Jan. 1997  H.Kurahige
00037 // ------------------------------------------------------------
00038 
00039 #include "G4VRestDiscreteProcess.hh"
00040 #include "G4SystemOfUnits.hh"
00041 
00042 #include "Randomize.hh"              
00043 #include "G4Step.hh"
00044 #include "G4Track.hh"
00045 #include "G4MaterialTable.hh"
00046 #include "G4VParticleChange.hh"
00047 
00048 G4VRestDiscreteProcess::G4VRestDiscreteProcess()
00049                    :G4VProcess("No Name Discrete Process") 
00050 {
00051   G4Exception("G4VRestDiscreteProcess::G4VRestDiscreteProcess","ProcMan102",
00052               JustWarning,"Default constructor is called");
00053 }
00054 
00055 G4VRestDiscreteProcess::G4VRestDiscreteProcess(const G4String& aName , G4ProcessType aType)
00056                   : G4VProcess(aName, aType)
00057 {
00058   enableAlongStepDoIt  = false;
00059 }
00060 
00061 G4VRestDiscreteProcess::~G4VRestDiscreteProcess()
00062 {
00063 }
00064 
00065 G4VRestDiscreteProcess::G4VRestDiscreteProcess(G4VRestDiscreteProcess& right)
00066                   : G4VProcess(right)
00067 {
00068 }
00069 
00070 G4double G4VRestDiscreteProcess::PostStepGetPhysicalInteractionLength(
00071                              const G4Track& track,
00072                              G4double   previousStepSize,
00073                              G4ForceCondition* condition
00074                             )
00075 {
00076   if ( (previousStepSize < 0.0) || (theNumberOfInteractionLengthLeft<=0.0)) {
00077     // beggining of tracking (or just after DoIt of this process)
00078     ResetNumberOfInteractionLengthLeft();
00079   } else if ( previousStepSize > 0.0) {
00080     // subtract NumberOfInteractionLengthLeft 
00081     SubtractNumberOfInteractionLengthLeft(previousStepSize);
00082   } else {
00083     // zero step
00084     //  DO NOTHING
00085   }
00086 
00087   // condition is set to "Not Forced"
00088   *condition = NotForced;
00089 
00090   // get mean free path
00091   currentInteractionLength = GetMeanFreePath(track, previousStepSize, condition);
00092 
00093   G4double value;
00094   if (currentInteractionLength <DBL_MAX) {
00095     value = theNumberOfInteractionLengthLeft * currentInteractionLength;
00096   } else {
00097     value = DBL_MAX;
00098   }
00099 #ifdef G4VERBOSE
00100    if (verboseLevel>1){
00101     G4cout << "G4VRestDiscreteProcess::PostStepGetPhysicalInteractionLength ";
00102     G4cout << "[ " << GetProcessName() << "]" <<G4endl;
00103     track.GetDynamicParticle()->DumpInfo();
00104     G4cout << " in Material  " <<  track.GetMaterial()->GetName() <<G4endl;
00105     G4cout << "InteractionLength= " << value/cm <<"[cm] " <<G4endl;
00106   }
00107 #endif
00108   return value;
00109 }
00110 
00111 G4VParticleChange* G4VRestDiscreteProcess::PostStepDoIt(
00112                              const G4Track& ,
00113                              const G4Step& 
00114                             )
00115 { 
00116 //  reset NumberOfInteractionLengthLeft
00117     ClearNumberOfInteractionLengthLeft();
00118 
00119     return pParticleChange;
00120 }
00121 
00122 G4double G4VRestDiscreteProcess::AtRestGetPhysicalInteractionLength(
00123                              const G4Track& track,
00124                              G4ForceCondition* condition
00125                             )
00126 {
00127   // beggining of tracking 
00128   ResetNumberOfInteractionLengthLeft();
00129 
00130   // condition is set to "Not Forced"
00131   *condition = NotForced;
00132 
00133   // get mean life time
00134   currentInteractionLength = GetMeanLifeTime(track, condition);
00135 
00136 #ifdef G4VERBOSE
00137    if ((currentInteractionLength <0.0) || (verboseLevel>2)){
00138     G4cout << "G4VRestDiscreteProcess::AtRestGetPhysicalInteractionLength ";
00139     G4cout << "[ " << GetProcessName() << "]" <<G4endl;
00140     track.GetDynamicParticle()->DumpInfo();
00141     G4cout << " in Material  " << track.GetMaterial()->GetName() <<G4endl;
00142     G4cout << "MeanLifeTime = " << currentInteractionLength/ns << "[ns]" <<G4endl;
00143   }
00144 #endif
00145 
00146   return theNumberOfInteractionLengthLeft * currentInteractionLength;
00147 }
00148 
00149 
00150 G4VParticleChange* G4VRestDiscreteProcess::AtRestDoIt( 
00151                              const G4Track&,
00152                              const G4Step& 
00153                             )
00154 {
00155 //  clear NumberOfInteractionLengthLeft
00156     ClearNumberOfInteractionLengthLeft();
00157 
00158     return pParticleChange;
00159 }

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