| Geant4 Cross Reference |
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25 //
26 // G4MSSteppingAction
27 //
28 // Class description:
29 //
30 // Stepping action for material scanner.
31
32 // Author: M.Asai, 5 May 2006
33 // --------------------------------------------------------------------
34 #ifndef G4MSSteppingAction_hh
35 #define G4MSSteppingAction_hh 1
36
37 #include "G4UserSteppingAction.hh"
38 #include "globals.hh"
39 #include "G4ThreeVector.hh"
40
41 #include <vector>
42
43 class G4Region;
44
45
46 class G4MSSteppingAction : public G4UserSteppingAction
47 {
48 public:
49 G4MSSteppingAction() = default;
50 ~G4MSSteppingAction() override = default;
51
52 void Initialize(G4bool rSens, G4Region* reg);
53 void UserSteppingAction(const G4Step*) override;
54
55 inline G4double GetTotalStepLength() const { return length; }
56 inline G4double GetX0() const { return x0; }
57 inline G4double GetLambda0() const { return lambda; }
58
59 /// Print material properties verbosely for each step of geantino
60 /// This function is useful for single shot scans.
61 void PrintEachMaterialVerbose(std::ostream & oss);
62
63 /// Print list of {material name, thickness, x0, lambda}, integrated by material name
64 /// This function is useful for global scans.
65 void PrintIntegratedMaterialVerbose(std::ostream & oss);
66
67 private:
68 G4bool regionSensitive = false;
69 G4Region* theRegion = nullptr;
70 G4double length = 0.0;
71 G4double x0 = 0.0;
72 G4double lambda = 0.0;
73 struct shape_mat_info_t
74 {
75 /// Calculated average atomic number
76 G4double aveZ = 0.0;
77 /// Calculated average mass number
78 G4double aveA = 0.0;
79 /// Density of material given by user
80 G4double density = 0.0;
81 /// Material radiation length
82 G4double radiation_length = 0.0;
83 /// Material interaction length
84 G4double interaction_length = 0.0;
85 /// Step of the geantino
86 G4double thickness = 0.0;
87 /// Integrated path of the geantino
88 G4double integrated_thickness = 0.0;
89 /// Calculated x0 = thickness/radiation_length
90 G4double x0 = 0.0;
91 /// Calculated lambda = thickness/interaction_length
92 G4double lambda = 0.0;
93 /// Integrated x0
94 G4double integrated_x0 = 0.0;
95 /// Integrated lambda
96 G4double integrated_lambda = 0.0;
97 /// Entry point of the geantino into the solid
98 G4ThreeVector entry_point = { };
99 /// Exit point of the geantino out of the solid
100 G4ThreeVector exit_point = { };
101 /// Material name. Composition is not checked.
102 /// That is, if there are two identical materials
103 /// except for the name, they are treated as different
104 G4String material_name = { };
105 /// Getter that returns the full material name
106 const G4String& GetName() { return material_name; }
107 /// Getter that returns the material name, splitted in blocks of length 'column_width'
108 G4String GetName(G4int column_width)
109 {
110 auto input_name_length = (G4int)material_name.length();
111 if( input_name_length < column_width) { return material_name; }
112
113 G4String formatted_name;
114 for (std::size_t i = 0; i < material_name.length(); i += column_width)
115 {
116 // for each block of characters of length 'column_width', append '\n'
117 formatted_name += material_name.substr(i, column_width);
118 if (i + column_width < material_name.length())
119 {
120 formatted_name += '\n';
121 }
122 // append spaces for last block of characters so its length corresponds to column_width
123 else
124 {
125 formatted_name+=G4String( column_width-(input_name_length%column_width),' ');
126 }
127 }
128 return formatted_name;
129 }
130 };
131 std::vector<shape_mat_info_t> shape_mat_info_v;
132
133 };
134
135 #endif
136