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G4ParticleHPEnergyDistribution.hh
Go to the documentation of this file.
Or view
the newest version in sPHENIX GitHub for file G4ParticleHPEnergyDistribution.hh
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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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// P. Arce, June-2014 Conversion neutron_hp to particle_hp
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//
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#ifndef G4ParticleHPEnergyDistribution_h
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#define G4ParticleHPEnergyDistribution_h 1
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#include <fstream>
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#include "
globals.hh
"
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#include "
G4ios.hh
"
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#include "
Randomize.hh
"
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#include "
G4ParticleHPArbitaryTab.hh
"
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#include "
G4ParticleHPEvapSpectrum.hh
"
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#include "
G4ParticleHPSimpleEvapSpectrum.hh
"
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#include "
G4ParticleHPFissionSpectrum.hh
"
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#include "
G4ParticleHPWattSpectrum.hh
"
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#include "
G4ParticleHPMadlandNixSpectrum.hh
"
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#include "
G4VParticleHPEDis.hh
"
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// we will need a List of these .... one per term.
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class
G4ParticleHPEnergyDistribution
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{
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public
:
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G4ParticleHPEnergyDistribution
()
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{
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theEnergyDistribution
= 0;
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theNumberOfPartials
= 0;
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theRepresentationType
= 0;
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}
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~G4ParticleHPEnergyDistribution
()
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{
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if
(
theEnergyDistribution
!= 0)
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{
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for
(
G4int
i=0; i<
theNumberOfPartials
; i++)
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{
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delete
theEnergyDistribution
[i];
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}
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delete
[]
theEnergyDistribution
;
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}
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}
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inline
void
Init
(std::istream & theData)
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{
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G4double
dummy;
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theData >> dummy >>
theNumberOfPartials
;
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theEnergyDistribution
=
new
G4VParticleHPEDis
* [
theNumberOfPartials
];
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for
(
G4int
i=0; i<
theNumberOfPartials
; i++)
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{
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theData >>
theRepresentationType
;
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switch
(theRepresentationType)
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{
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case
1:
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theEnergyDistribution
[i] =
new
G4ParticleHPArbitaryTab
;
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break
;
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case
5:
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theEnergyDistribution
[i] =
new
G4ParticleHPEvapSpectrum
;
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break
;
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case
7:
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theEnergyDistribution
[i] =
new
G4ParticleHPFissionSpectrum
;
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break
;
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case
9:
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theEnergyDistribution
[i] =
new
G4ParticleHPSimpleEvapSpectrum
;
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break
;
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case
11:
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theEnergyDistribution
[i] =
new
G4ParticleHPWattSpectrum
;
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break
;
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case
12:
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theEnergyDistribution
[i] =
new
G4ParticleHPMadlandNixSpectrum
;
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break
;
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}
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theEnergyDistribution
[i]->
Init
(theData);
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}
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}
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inline
G4double
Sample
(
G4double
anEnergy,
G4int
&
it
)
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{
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G4double
result = 0;
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it = 0;
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if
(
theNumberOfPartials
!= 0)
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{
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G4double
sum
=0;
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G4double
* running =
new
G4double
[
theNumberOfPartials
];
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running[0] = 0;
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G4int
i;
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for
(i=0; i<
theNumberOfPartials
; i++)
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{
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if
(i!=0) running[i]=running[i-1];
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running[i]+=
theEnergyDistribution
[i]->
GetFractionalProbability
(anEnergy);
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}
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sum = running[theNumberOfPartials-1];
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G4double
random =
G4UniformRand
();
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for
(i=0; i<
theNumberOfPartials
; i++)
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{
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it = i;
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if
(running[i]/sum>random)
break
;
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}
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delete
[] running;
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if
(it==theNumberOfPartials) it--;
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result =
theEnergyDistribution
[
it
]->
Sample
(anEnergy);
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}
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return
result;
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}
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private
:
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G4int
theNumberOfPartials
;
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G4int
theRepresentationType
;
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G4VParticleHPEDis
**
theEnergyDistribution
;
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};
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#endif
geant4
tree
geant4-10.6-release
source
processes
hadronic
models
particle_hp
include
G4ParticleHPEnergyDistribution.hh
Built by
Jin Huang
. updated:
Wed Jun 29 2022 17:25:47
using
1.8.2 with
ECCE GitHub integration