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G4EmMultiModel.cc
Go to the documentation of this file.
Or view
the newest version in sPHENIX GitHub for file G4EmMultiModel.cc
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//
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// ********************************************************************
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// * License and Disclaimer *
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// * *
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// * The Geant4 software is copyright of the Copyright Holders of *
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// * the Geant4 Collaboration. It is provided under the terms and *
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// * conditions of the Geant4 Software License, included in the file *
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// * LICENSE and available at http://cern.ch/geant4/license . These *
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// * include a list of copyright holders. *
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// * *
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// * Neither the authors of this software system, nor their employing *
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// * institutes,nor the agencies providing financial support for this *
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// * work make any representation or warranty, express or implied, *
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// * regarding this software system or assume any liability for its *
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// * use. Please see the license in the file LICENSE and URL above *
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// * for the full disclaimer and the limitation of liability. *
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// * *
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// * This code implementation is the result of the scientific and *
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// * technical work of the GEANT4 collaboration. *
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// * By using, copying, modifying or distributing the software (or *
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// * any work based on the software) you agree to acknowledge its *
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// * use in resulting scientific publications, and indicate your *
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// * acceptance of all terms of the Geant4 Software license. *
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// ********************************************************************
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//
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//
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// -------------------------------------------------------------------
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//
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// GEANT4 Class file
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//
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//
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// File name: G4EmMultiModel
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//
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// Author: Vladimir Ivanchenko
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//
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// Creation date: 03.05.2004
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//
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// Modifications:
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// 15-04-05 optimize internal interface (V.Ivanchenko)
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// 04-07-10 updated interfaces according to g4 9.4 (V.Ivanchenko)
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//
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//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
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//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
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#include "
G4EmMultiModel.hh
"
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#include "
Randomize.hh
"
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//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
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G4EmMultiModel::G4EmMultiModel
(
const
G4String
& nam)
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:
G4VEmModel
(nam), nModels(0)
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{
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model
.clear();
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cross_section
.clear();
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}
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//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
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G4EmMultiModel::~G4EmMultiModel
()
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{}
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//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
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void
G4EmMultiModel::AddModel
(
G4VEmModel
*
p
)
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{
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cross_section
.push_back(0.0);
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model
.push_back(p);
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++
nModels
;
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}
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//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
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void
G4EmMultiModel::Initialise
(
const
G4ParticleDefinition
*
p
,
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const
G4DataVector
& cuts)
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{
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if
(
nModels
> 0) {
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G4cout
<<
"### Initialisation of EM MultiModel "
<<
GetName
()
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<<
" including following list of models:"
<<
G4endl
;
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for
(
G4int
i=0; i<
nModels
; ++i) {
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G4cout
<<
" "
<< (
model
[i])->
GetName
();
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(
model
[i])->
SetParticleChange
(
pParticleChange
,
GetModelOfFluctuations
());
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(
model
[i])->
Initialise
(p, cuts);
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}
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G4cout
<<
G4endl
;
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}
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}
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//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
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G4double
G4EmMultiModel::ComputeDEDX
(
const
G4MaterialCutsCouple
* couple,
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const
G4ParticleDefinition
*
p
,
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G4double
kineticEnergy,
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G4double
cutEnergy)
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{
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SetCurrentCouple
(couple);
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G4double
dedx = 0.0;
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if
(
nModels
> 0) {
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for
(
G4int
i=0; i<
nModels
; i++) {
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dedx += (
model
[i])->
ComputeDEDX
(couple, p, cutEnergy, kineticEnergy);
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}
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}
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return
dedx;
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}
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//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
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G4double
G4EmMultiModel::ComputeCrossSectionPerAtom
(
const
G4ParticleDefinition
*
p
,
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G4double
kinEnergy,
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G4double
Z
,
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G4double
A
,
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G4double
cutEnergy,
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G4double
maxEnergy)
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{
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G4double
cross
= 0.0;
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if
(
nModels
>0) {
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for
(
G4int
i=0; i<
nModels
; ++i) {
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(
model
[i])->
SetCurrentCouple
(
CurrentCouple
());
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cross += (
model
[i])->
ComputeCrossSectionPerAtom
(p, kinEnergy, Z, A,
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cutEnergy, maxEnergy);
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}
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}
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return
cross
;
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}
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//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
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void
G4EmMultiModel::SampleSecondaries
(std::vector<G4DynamicParticle*>* vdp,
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const
G4MaterialCutsCouple
* couple,
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const
G4DynamicParticle
* dp,
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G4double
minEnergy,
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G4double
maxEnergy)
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{
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SetCurrentCouple
(couple);
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if
(
nModels
> 0) {
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G4int
i;
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G4double
cross
= 0.0;
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for
(i=0; i<
nModels
; ++i) {
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cross += (
model
[i])->
CrossSection
(couple, dp->
GetParticleDefinition
(),
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dp->
GetKineticEnergy
(), minEnergy, maxEnergy);
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cross_section
[i] =
cross
;
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}
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cross *=
G4UniformRand
();
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for
(i=0; i<
nModels
; ++i) {
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if
(cross <=
cross_section
[i]) {
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(
model
[i])->
SampleSecondaries
(vdp, couple, dp, minEnergy, maxEnergy);
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return
;
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}
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}
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}
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}
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//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
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geant4
tree
geant4-10.6-release
source
processes
electromagnetic
utils
src
G4EmMultiModel.cc
Built by
Jin Huang
. updated:
Wed Jun 29 2022 17:25:35
using
1.8.2 with
ECCE GitHub integration