ECCE @ EIC Software
Reference for
ECCE @ EIC
simulation and reconstruction software on GitHub
Home page
Related Pages
Modules
Namespaces
Classes
Files
External Links
File List
File Members
All
Classes
Namespaces
Files
Functions
Variables
Typedefs
Enumerations
Enumerator
Friends
Macros
Groups
Pages
Dicom2PrimaryGeneratorAction.cc
Go to the documentation of this file.
Or view
the newest version in sPHENIX GitHub for file Dicom2PrimaryGeneratorAction.cc
1
//
2
// ********************************************************************
3
// * License and Disclaimer *
4
// * *
5
// * The Geant4 software is copyright of the Copyright Holders of *
6
// * the Geant4 Collaboration. It is provided under the terms and *
7
// * conditions of the Geant4 Software License, included in the file *
8
// * LICENSE and available at http://cern.ch/geant4/license . These *
9
// * include a list of copyright holders. *
10
// * *
11
// * Neither the authors of this software system, nor their employing *
12
// * institutes,nor the agencies providing financial support for this *
13
// * work make any representation or warranty, express or implied, *
14
// * regarding this software system or assume any liability for its *
15
// * use. Please see the license in the file LICENSE and URL above *
16
// * for the full disclaimer and the limitation of liability. *
17
// * *
18
// * This code implementation is the result of the scientific and *
19
// * technical work of the GEANT4 collaboration. *
20
// * By using, copying, modifying or distributing the software (or *
21
// * any work based on the software) you agree to acknowledge its *
22
// * use in resulting scientific publications, and indicate your *
23
// * acceptance of all terms of the Geant4 Software license. *
24
// ********************************************************************
25
//
26
//
29
30
#include "
Dicom2PrimaryGeneratorAction.hh
"
31
#include "
DicomDetectorConstruction.hh
"
32
33
#include "
G4LogicalVolumeStore.hh
"
34
#include "
G4PhysicalVolumeStore.hh
"
35
#include "
G4LogicalVolume.hh
"
36
#include "
G4VPhysicalVolume.hh
"
37
#include "
G4Box.hh
"
38
#include "
G4RunManager.hh
"
39
#include "
G4ParticleGun.hh
"
40
#include "
G4ParticleTable.hh
"
41
#include "
G4ParticleDefinition.hh
"
42
#include "
G4SystemOfUnits.hh
"
43
#include "
Randomize.hh
"
44
#include "
G4RandomDirection.hh
"
45
#include "
G4UnitsTable.hh
"
46
47
//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
48
49
Dicom2PrimaryGeneratorAction::Dicom2PrimaryGeneratorAction
()
50
:
G4VUserPrimaryGeneratorAction
(),
51
fParticleGun(new
G4ParticleGun
(1)),
52
fEnvelopeBox(nullptr),
53
fEnvelopeVol(nullptr),
54
fPosCenter(
G4ThreeVector
(0.0)),
55
fPosDelta(
G4ThreeVector
(0.0)),
56
fGeomFactor(0.8)
57
{
58
// default particle kinematic
59
G4ParticleTable
* particleTable =
G4ParticleTable::GetParticleTable
();
60
G4String
particleName;
61
G4ParticleDefinition
*
particle
62
= particleTable->
FindParticle
(particleName=
"e-"
);
63
fParticleGun
->
SetParticleDefinition
(particle);
64
fParticleGun
->
SetParticleMomentumDirection
(
G4ThreeVector
(0.,0.,1.));
65
fParticleGun
->
SetParticleEnergy
(10.*
MeV
);
66
}
67
68
//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
69
70
Dicom2PrimaryGeneratorAction::~Dicom2PrimaryGeneratorAction
()
71
{
72
delete
fParticleGun
;
73
}
74
75
//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
76
77
void
Dicom2PrimaryGeneratorAction::GeneratePrimaries
(
G4Event
* anEvent)
78
{
79
//this function is called at the begining of ecah event
80
//
81
82
// In order to avoid dependence of PrimaryGeneratorAction
83
// on DetectorConstruction class we get phantomContainer volume
84
// from G4LogicalVolumeStore.
85
if
(!
fEnvelopeBox
)
86
{
87
G4LogicalVolume
* envLV
88
=
G4LogicalVolumeStore::GetInstance
()->
GetVolume
(
"phantomContainer"
);
89
if
(envLV)
90
fEnvelopeBox
=
dynamic_cast<
G4Box
*
>
(envLV->
GetSolid
());
91
}
92
93
if
(!
fEnvelopeVol
)
94
{
95
fEnvelopeVol
=
G4PhysicalVolumeStore::GetInstance
()->
GetVolume
(
"phantomContainer"
);
96
}
97
98
// get the center of the phantom
99
if
(
fEnvelopeVol
)
100
{
101
fPosCenter
=
fEnvelopeVol
->
GetObjectTranslation
();
102
}
103
else
104
{
105
G4ExceptionDescription
msg;
106
msg <<
"Envelope physical volume not found.\n"
;
107
msg <<
"The gun will be place at the center."
;
108
G4Exception
(
"Dicom2PrimaryGeneratorAction::GeneratePrimaries()"
,
109
"DICOM20002"
,
JustWarning
, msg);
110
}
111
112
// get the size of the phantom
113
if
(
fEnvelopeBox
)
114
{
115
fPosDelta
=
G4ThreeVector
(2.0 *
fEnvelopeBox
->
GetXHalfLength
(),
116
2.0 *
fEnvelopeBox
->
GetYHalfLength
(),
117
2.0 *
fEnvelopeBox
->
GetZHalfLength
());
118
}
119
else
120
{
121
G4ExceptionDescription
msg;
122
msg <<
"Envelope volume of box shape not found.\n"
;
123
msg <<
"The gun will be place at the center."
;
124
G4Exception
(
"Dicom2PrimaryGeneratorAction::GeneratePrimaries()"
,
125
"DICOM20003"
,
JustWarning
, msg);
126
}
127
128
// start at center
129
G4ThreeVector
pos
=
fPosCenter
;
130
// get a random displacement
131
G4ThreeVector
delta
(
fPosDelta
.
x
() * (
G4UniformRand
()-0.5),
132
fPosDelta
.
y
() * (
G4UniformRand
()-0.5),
133
fPosDelta
.
z
() * (
G4UniformRand
()-0.5));
134
// scale by geom factor
135
delta
*=
fGeomFactor
;
136
137
//G4cout << "Starting position: " << G4BestUnit(pos + delta, "Length")
138
// << ", pos = " << G4BestUnit(fPosCenter, "Length")
139
// << ", size = " << G4BestUnit(fPosDelta, "Length")
140
// << ", delta = " << G4BestUnit(delta, "Length")
141
// << G4endl;
142
143
fParticleGun
->
SetParticlePosition
(pos + delta);
144
fParticleGun
->
SetParticleMomentumDirection
(
G4RandomDirection
());
145
fParticleGun
->
GeneratePrimaryVertex
(anEvent);
146
}
147
148
//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
149
geant4
tree
geant4-10.6-release
examples
extended
medical
DICOM2
src
Dicom2PrimaryGeneratorAction.cc
Built by
Jin Huang
. updated:
Wed Jun 29 2022 17:25:07
using
1.8.2 with
ECCE GitHub integration