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>> 1
>> 2 // This code implementation is the intellectual property of
>> 3 // the GEANT4 collaboration.
>> 4 //
>> 5 // By copying, distributing or modifying the Program (or any work
>> 6 // based on the Program) you indicate your acceptance of this statement,
>> 7 // and all its terms.
>> 8 //
>> 9 // $Id: G4VDiscreteProcess.hh,v 1.4 1999/12/15 14:53:42 gunter Exp $
>> 10 // GEANT4 tag $Name: geant4-03-01 $
>> 11 //
>> 12 //
>> 13 // ------------------------------------------------------------
>> 14 // GEANT 4 class header file
1 // 15 //
2 // ******************************************* << 16 // For information related to this code contact:
3 // * License and Disclaimer << 17 // CERN, CN Division, ASD group
4 // * << 18 // History: first implementation, based on object model of
5 // * The Geant4 software is copyright of th << 19 // 2nd December 1995, G.Cosmo
6 // * the Geant4 Collaboration. It is provided << 20 // add G4VDiscreteProcess(const G4String&) 24 Jul 1996, Hisaya kurashige
7 // * conditions of the Geant4 Software License << 21 //
8 // * LICENSE and available at http://cern.ch/ << 22 // Class Description
9 // * include a list of copyright holders. << 23 // Abstract class which defines the public behavior of
10 // * << 24 // discrete physics interactions.
11 // * Neither the authors of this software syst << 25 //
12 // * institutes,nor the agencies providing fin << 26 // ------------------------------------------------------------
13 // * work make any representation or warran << 27 // New Physics scheme 18 Dec. 1996 H.Kurahige
14 // * regarding this software system or assum << 28 // ------------------------------------------------------------
15 // * use. Please see the license in the file << 29 // modified 25 Feb. 1997 H.Kurahige
16 // * for the full disclaimer and the limitatio << 30 // modified 8 Mar. 1997 H.Kurahige
17 // * << 31 // modified 26 Mar. 1997 H.Kurahige
18 // * This code implementation is the result << 32 // modified 16 Apr. 1997 L.Urban
19 // * technical work of the GEANT4 collaboratio << 33 // modified 17 Dec. 1997 L.Urban
20 // * By using, copying, modifying or distri << 34 // modified for new ParticleChange 12 Mar. 1998 H.Kurashige
21 // * any work based on the software) you ag << 35
22 // * use in resulting scientific publicati << 36 #ifndef G4VDiscreteProcess_h
23 // * acceptance of all terms of the Geant4 Sof << 37 #define G4VDiscreteProcess_h 1
24 // ******************************************* <<
25 // <<
26 // G4VDiscreteProcess <<
27 // <<
28 // Class description: <<
29 // <<
30 // Abstract class which defines the public beh <<
31 // discrete physics interactions. <<
32 <<
33 // Authors: <<
34 // - 2 December 1995, G.Cosmo - First implemen <<
35 // - 18 December 1996, H.Kurashige - New Physi <<
36 // ------------------------------------------- <<
37 #ifndef G4VDiscreteProcess_hh <<
38 #define G4VDiscreteProcess_hh 1 <<
39 38
40 #include "globals.hh" 39 #include "globals.hh"
41 #include "G4ios.hh" 40 #include "G4ios.hh"
42 41
43 #include "G4VProcess.hh" 42 #include "G4VProcess.hh"
44 43
45 class G4VDiscreteProcess : public G4VProcess 44 class G4VDiscreteProcess : public G4VProcess
46 { 45 {
>> 46 // Abstract class which defines the public behavior of
>> 47 // discrete physics interactions.
47 public: 48 public:
48 49
49 G4VDiscreteProcess(const G4String& aName, << 50 G4VDiscreteProcess(const G4String& ,
50 G4ProcessType aType = f << 51 G4ProcessType aType = fNotDefined );
51 G4VDiscreteProcess(G4VDiscreteProcess&); << 52 G4VDiscreteProcess(G4VDiscreteProcess &);
52 <<
53 virtual ~G4VDiscreteProcess(); <<
54 53
55 G4VDiscreteProcess& operator=(const G4VDis << 54 virtual ~G4VDiscreteProcess();
56 55
57 virtual G4double PostStepGetPhysicalIntera << 56 public :// with description
>> 57 virtual G4double PostStepGetPhysicalInteractionLength(
58 const G4Track& tr 58 const G4Track& track,
59 G4double previous << 59 G4double previousStepSize,
60 G4ForceCondition* << 60 G4ForceCondition* condition
61 ); << 61 );
62 << 62
63 virtual G4VParticleChange* PostStepDoIt( << 63 virtual G4VParticleChange* PostStepDoIt(
64 const G4Track& , << 64 const G4Track& ,
65 const G4Step& << 65 const G4Step&
66 ); << 66 );
67 67
68 // No operation in AtRestDoIt and AlongSte << 68 // no operation in AtRestDoIt and AlongStepDoIt
69 // << 69 virtual G4double AlongStepGetPhysicalInteractionLength(
70 virtual G4double AlongStepGetPhysicalInter <<
71 const G4Track&, 70 const G4Track&,
72 G4double , << 71 G4double ,
73 G4double , << 72 G4double ,
74 G4double& , << 73 G4double& ,
75 G4GPILSelection* 74 G4GPILSelection*
76 ) { return -1.0; } << 75 ){ return -1.0; };
77 <<
78 virtual G4double AtRestGetPhysicalInteract <<
79 const G4Track& , <<
80 G4ForceCondition* <<
81 ) { return -1.0; } <<
82 <<
83 // No operation in AtRestDoIt and AlongSte <<
84 // <<
85 virtual G4VParticleChange* AtRestDoIt( <<
86 const G4Track& , <<
87 const G4Step& <<
88 ) { return nullptr <<
89 76
90 virtual G4VParticleChange* AlongStepDoIt( << 77 virtual G4double AtRestGetPhysicalInteractionLength(
91 const G4Track& , 78 const G4Track& ,
92 const G4Step& << 79 G4ForceCondition*
93 ) { return nullptr << 80 ) { return -1.0; };
94 81
95 // cross section in the unit of inverse le << 82 // no operation in AtRestDoIt and AlongStepDoIt
96 // function of kinetic energy << 83 virtual G4VParticleChange* AtRestDoIt(
97 virtual G4double GetCrossSection( << 84 const G4Track& ,
98 const G4double, << 85 const G4Step&
99 const G4MaterialC << 86 ) {return 0;};
100 ) { return 0.0; } << 87
101 << 88 virtual G4VParticleChange* AlongStepDoIt(
102 // minimal energy for non-zero cross secti << 89 const G4Track& ,
103 virtual G4double MinPrimaryEnergy( << 90 const G4Step&
104 const G4ParticleD << 91 ) {return 0;};
105 const G4Material* <<
106 ) { return 0.0; } <<
107 92
108 protected: << 93 protected:// with description
109 << 94 virtual G4double GetMeanFreePath(const G4Track& aTrack,
110 virtual G4double GetMeanFreePath( const G4 << 95 G4double previousStepSize,
111 G4double << 96 G4ForceCondition* condition
112 G4ForceC << 97 )=0;
113 // Calculates from the macroscopic cross << 98 // Calculates from the macroscopic cross section a mean
114 // free path, the value is returned in u << 99 // free path, the value is returned in units of distance.
115 100
116 private: 101 private:
>> 102 // hide default constructor and assignment operator as private
>> 103 G4VDiscreteProcess();
>> 104 G4VDiscreteProcess & operator=(const G4VDiscreteProcess &right);
117 105
118 G4VDiscreteProcess(); <<
119 // Hidden default constructor <<
120 }; 106 };
121 107
>> 108 // -----------------------------------------
>> 109 // inlined function members implementation
>> 110 // -----------------------------------------
>> 111 #include "G4Step.hh"
>> 112 #include "G4Track.hh"
>> 113 #include "G4MaterialTable.hh"
>> 114 #include "G4VParticleChange.hh"
>> 115
>> 116 inline G4double G4VDiscreteProcess::PostStepGetPhysicalInteractionLength(
>> 117 const G4Track& track,
>> 118 G4double previousStepSize,
>> 119 G4ForceCondition* condition
>> 120 )
>> 121 {
>> 122 if ( (previousStepSize <=0.0) || (theNumberOfInteractionLengthLeft<=0.0)) {
>> 123 // beggining of tracking (or just after DoIt of this process)
>> 124 ResetNumberOfInteractionLengthLeft();
>> 125 } else {
>> 126 // subtract NumberOfInteractionLengthLeft
>> 127 SubtractNumberOfInteractionLengthLeft(previousStepSize);
>> 128 if(theNumberOfInteractionLengthLeft<perMillion)
>> 129 theNumberOfInteractionLengthLeft=0.;
>> 130 }
>> 131
>> 132 // condition is set to "Not Forced"
>> 133 *condition = NotForced;
>> 134
>> 135 // get mean free path
>> 136 currentInteractionLength = GetMeanFreePath(track, previousStepSize, condition);
>> 137
>> 138 #ifdef G4VERBOSE
>> 139 if ((currentInteractionLength <=0.0) || (verboseLevel>2)){
>> 140 G4cout << "G4VDiscreteProcess::PostStepGetPhysicalInteractionLength ";
>> 141 G4cout << "[ " << GetProcessName() << "]" <<G4endl;
>> 142 track.GetDynamicParticle()->DumpInfo();
>> 143 G4cout << " in Material " << track.GetMaterial()->GetName() <<G4endl;
>> 144 G4cout << "MeanFreePath = " << currentInteractionLength/cm << "[cm]" <<G4endl;
>> 145 }
>> 146 #endif
>> 147
>> 148
>> 149 G4double value = theNumberOfInteractionLengthLeft * currentInteractionLength;
>> 150 #ifdef G4VERBOSE
>> 151 if (verboseLevel>1){
>> 152 G4cout << "G4VDiscreteProcess::PostStepGetPhysicalInteractionLength ";
>> 153 G4cout << "[ " << GetProcessName() << "]" <<G4endl;
>> 154 track.GetDynamicParticle()->DumpInfo();
>> 155 G4cout << " in Material " << track.GetMaterial()->GetName() <<G4endl;
>> 156 G4cout << "InteractionLength= " << value/cm <<"[cm] " <<G4endl;
>> 157 }
122 #endif 158 #endif
>> 159 return value;
>> 160 }
>> 161
>> 162 inline G4VParticleChange* G4VDiscreteProcess::PostStepDoIt(
>> 163 const G4Track& ,
>> 164 const G4Step&
>> 165 )
>> 166 {
>> 167 // clear NumberOfInteractionLengthLeft
>> 168 ClearNumberOfInteractionLengthLeft();
>> 169
>> 170 return pParticleChange;
>> 171 }
>> 172
>> 173
>> 174 #endif
>> 175
>> 176
>> 177
123 178