Gabriele Cosmo
128 lines
5.0 KiB
Plaintext
128 lines
5.0 KiB
Plaintext
//
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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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// $Id: G4eBremsstrahlung52.icc,v 1.3 2006/06/29 19:52:02 gunter Exp $
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// GEANT4 tag $Name: geant4-08-01 $
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//
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// ------------ G4eBremsstrahlung52 physics process ---------
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// by Michel Maire, 27 July 1996
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//
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// 13-12-96 : Sign corrected in the ScreenFunctions, L.Urban
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// 20/03/97 : new energy loss+ionisation+brems scheme, L.Urban
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// 28/05/01 : V.Ivanchenko minor changes to provide ANSI -wall compilation
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// 16-01-03 Migrade to cut per region (V.Ivanchenko)
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// 08-08-03 This class is frozen at the release 5.2 (V.Ivanchenko)
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// ---------------------------------------------------------------------------
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//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
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inline G4bool G4eBremsstrahlung52::IsApplicable(
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const G4ParticleDefinition& particle)
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{
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return( (&particle == G4Electron::Electron())
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||(&particle == G4Positron::Positron()) );
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}
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//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
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inline G4double G4eBremsstrahlung52::GetMeanFreePath(const G4Track& track,
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G4double,
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G4ForceCondition*)
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// gives the MeanFreePath in GEANT4 internal units
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{
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const G4DynamicParticle* aDynamicParticle = track.GetDynamicParticle();
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G4double KineticEnergy = aDynamicParticle->GetKineticEnergy();
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const G4MaterialCutsCouple* couple = track.GetMaterialCutsCouple();
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G4double MeanFreePath;
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G4bool isOutRange;
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if (KineticEnergy < LowestKineticEnergy) MeanFreePath = DBL_MAX;
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else {
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if (KineticEnergy > HighestKineticEnergy) KineticEnergy = 0.99*HighestKineticEnergy ;
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MeanFreePath = (*theMeanFreePathTable)(couple->GetIndex())->
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GetValue( KineticEnergy, isOutRange );
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}
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return MeanFreePath;
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}
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//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
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inline G4double G4eBremsstrahlung52::ScreenFunction1(G4double ScreenVariable)
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// compute the value of the screening function 3*PHI1 - PHI2
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{
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G4double screenVal;
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if (ScreenVariable > 1.)
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screenVal = 42.24 - 8.368*std::log(ScreenVariable+0.952);
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else
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screenVal = 42.392 - ScreenVariable* (7.796 - 1.961*ScreenVariable);
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return screenVal;
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}
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//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
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inline G4double G4eBremsstrahlung52::ScreenFunction2(G4double ScreenVariable)
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// compute the value of the screening function 1.5*PHI1 - 0.5*PHI2
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{
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G4double screenVal;
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if (ScreenVariable > 1.)
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screenVal = 42.24 - 8.368*std::log(ScreenVariable+0.952);
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else
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screenVal = 41.734 - ScreenVariable* (6.484 - 1.250*ScreenVariable);
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return screenVal;
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}
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//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
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inline G4double G4eBremsstrahlung52::GetLambda(
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G4double KineticEnergy,
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const G4MaterialCutsCouple* couple)
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{
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G4bool isOut;
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return (*theMeanFreePathTable)[couple->GetIndex()]->
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GetValue(KineticEnergy,isOut);
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}
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//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
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inline G4double G4eBremsstrahlung52::SecondaryEnergyThreshold(size_t index)
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{
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return (*secondaryEnergyCuts)[index];
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}
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//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
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