| Geant4 Cross Reference |
1 ----------------------------------------------
2
3 =========================================
4 Geant4 - an Object-Oriented Toolkit for S
5 =========================================
6
7 OpNovice
8 --------
9
10 This example presently illustrates the followi
11 particular (indicated with ***), how to use G4
12 generation and transport. Other extended examp
13 in Geant4 with optical photons can be found at
14 examples/extended/optical/LXe and wls.
15
16 main()
17 ------
18
19 ==> define Random Number generator initial se
20
21 G4Optical Physics
22 -----------------
23
24 The G4OpticalPhysics physics class is used. T
25 G4OpticalParametersMessenger class.
26
27 ==> define particles; including *** G4Optical
28 define processes; including *** G4Cerenko
29 *** G4Scintil
30 *** G4OpAbsor
31 *** G4OpRayle
32 *** G4OpBound
33
34 ==> A messenger command allows to define inte
35 verbose level and the maximum number of C
36 (see for instance OpNovice.in)
37
38 G4VUserDetectorConstruction
39 ---------------------------
40
41 ==> define material: Air and Water
42 define simple G4box geometry
43 *** add G4MaterialPropertiesTable to G4Ma
44 *** define G4LogicalSurface(s)
45 *** define G4OpticalSurface
46 *** add G4MaterialPropertiesTable to G4Op
47
48 alternatively the Configuration can be read fr
49 The provided gdml file NoviceExample.gdml corr
50 defined in OpNoviceDetectorConstruction.
51
52 G4VUserPrimaryGeneratorAction
53 -----------------------------
54
55 ==> Use G4ParticleGun to shoot a charge parti
56
57 ==> A messenger command allows to define inte
58 primary optical photon (see for instance
59
60 G4UserRunAction and G4Run
61 -------------------------
62
63 Used to accumulate statistics.
64
65 G4UserStackingAction and G4UserEventAction
66 ------------------------------------------
67
68 ==> show how to count the number of secondary
69
70 Visualisation
71 -------------
72
73 The Visualization Manager is set in the main(
74 The initialisation of the drawing is done via
75 in the macro vis.mac. This macro is automatic
76 the main in case of interactive running mode.
77
78 The detector has a default view which is a lo
79 The tracks are drawn at the end of event, and
80
81 HOW TO START
82 ------------
83
84 - compile and link to generate an executable
85
86 This example handles the program arguments
87 It can be run with the following optional o
88 $ OpNovice [-g gdmlfile] [-m macro ] [-u UI
89
90 The -t option is available only in multi-th
91 and it allows the user to override the Gean
92 threads. The number of threads can be also
93 environment variable which has the top prio
94
95 - execute OpNovice in 'batch' mode from macro
96 $ OpNovice -m OpNovice.in
97
98 - execute OpNovice in 'batch' mode from macro
99 to define the geometry
100 $ OpNovice -g NoviceExample.gdml -m OpNovice
101
102 - execute OpNovice in 'interactive mode' with
103 $ OpNovice
104 ....
105 Idle> type your commands. For instance:
106 Idle> /control/execute optPhoton.mac
107 ....
108 Idle> exit
109
110 Macros
111 ------
112
113 The following macros are provided:
114
115 - optPhoton.mac: Shoot optical photons with e
116 - OpNovice.in: Shoot positrons with energy 50
117 - gui.mac: Configure the graphical user inter
118 - vis.mac: Configure visualization.
119
120
121 gdml files
122 ----------
123 NoviceExample.gdml: example gdml file correspo
124 OpNoviceDetectorConstruction