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G4UCNLoss.cc
Go to the documentation of this file.
Or view
the newest version in sPHENIX GitHub for file G4UCNLoss.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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// Ultra Cold Neutron Loss Class Implementation
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//
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// File: G4UCNLoss.cc
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// Description: Discrete Process -- Loss of UCN
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// energy-independent loss cross section inside a material
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// Version: 1.0
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// Created: 2014-05-05
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// Author: Peter Gumplinger
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// Adopted from: UCN simple absorption, Peter Fierlinger 7.9.04
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// Marcin Kuzniaka 21.4.06
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// Updated:
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// mail: gum@triumf.ca
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//
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#include "
G4UCNProcessSubType.hh
"
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#include "
G4UCNLoss.hh
"
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#include "
G4SystemOfUnits.hh
"
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#include "
G4PhysicalConstants.hh
"
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// Class Implementation
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// Operators
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// G4UCNLoss::operator=(const G4UCNLoss &right)
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// {
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// }
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// Constructors
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G4UCNLoss::G4UCNLoss
(
const
G4String
& processName,
G4ProcessType
type)
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:
G4VDiscreteProcess
(processName, type)
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{
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if
(
verboseLevel
>0)
G4cout
<<
GetProcessName
() <<
" is created "
<<
G4endl
;
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SetProcessSubType
(
fUCNLoss
);
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}
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// G4UCNLoss::G4UCNLoss(const G4UCNLoss &right)
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// {
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// }
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// Destructors
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G4UCNLoss::~G4UCNLoss
(){}
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// Methods
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// PostStepDoIt
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// -------------
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G4VParticleChange
*
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G4UCNLoss::PostStepDoIt
(
const
G4Track
& aTrack,
const
G4Step
& aStep)
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{
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aParticleChange
.
Initialize
(aTrack);
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aParticleChange
.
ProposeTrackStatus
(
fStopAndKill
);
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if
(
verboseLevel
>0)
G4cout
<<
"\n** UCN lost! **"
<<
G4endl
;
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return
G4VDiscreteProcess::PostStepDoIt
(aTrack, aStep);
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}
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// GetMeanFreePath
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// ---------------
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G4double
G4UCNLoss::GetMeanFreePath
(
const
G4Track
& aTrack,
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G4double
,
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G4ForceCondition
* )
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{
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G4double
AttenuationLength =
DBL_MAX
;
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const
G4Material
* aMaterial = aTrack.
GetMaterial
();
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G4MaterialPropertiesTable
* aMaterialPropertiesTable =
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aMaterial->
GetMaterialPropertiesTable
();
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G4double
crossect = 0.0;
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if
(aMaterialPropertiesTable) {
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crossect = aMaterialPropertiesTable->
GetConstProperty
(
"LOSSCS"
);
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// if (crossect == 0.0)
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// G4cout << "No Loss Cross Section specified" << G4endl;
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}
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// else G4cout << "No Loss Cross Section specified" << G4endl;
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if
(crossect) {
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// Calculate a UCN absorption length for this cross section
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G4double
density = aMaterial->
GetTotNbOfAtomsPerVolume
();
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// Calculate cross section for a constant loss
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crossect *=
barn
;
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// Attenuation length
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AttenuationLength = 1./density/crossect;
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}
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return
AttenuationLength;
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}
geant4
tree
geant4-10.6-release
source
processes
hadronic
processes
src
G4UCNLoss.cc
Built by
Jin Huang
. updated:
Wed Jun 29 2022 17:25:51
using
1.8.2 with
ECCE GitHub integration