Gabriele Cosmo
97 lines
3.4 KiB
C++
97 lines
3.4 KiB
C++
//
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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 header file
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//
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//
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// File name: G4ModifiedTsai
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//
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// Author: Andreia Trindade (andreia@lip.pt)
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// Pedro Rodrigues (psilva@lip.pt)
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// Luis Peralta (luis@lip.pt)
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//
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// Creation date: 21 March 2003
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//
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// Modifications:
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// 21 Mar 2003 A.Trindade First implementation acording with new design
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// 24 Mar 2003 A.Trindade Fix in Tsai generator in order to prevent theta
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// generation above pi
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// 13 Oct 2010 V.Ivanchenko Moved to standard and improved comment
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//
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// Class Description:
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//
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// Bremsstrahlung Angular Distribution Generation
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// suggested by L.Urban (Geant3 manual (1993) Phys211)
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// Derived from Tsai distribution (Rev Mod Phys 49,421(1977))
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//
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// -------------------------------------------------------------------
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//
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#ifndef G4ModifiedTsai_h
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#define G4ModifiedTsai_h 1
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#include "G4ios.hh"
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#include "globals.hh"
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#include "G4VEmAngularDistribution.hh"
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class G4ModifiedTsai : public G4VEmAngularDistribution
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{
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public:
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explicit G4ModifiedTsai(const G4String& name = "");
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~G4ModifiedTsai() override;
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G4ThreeVector& SampleDirection(const G4DynamicParticle* dp,
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G4double out_energy, G4int Z,
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const G4Material* mat = nullptr) final;
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void SamplePairDirections(const G4DynamicParticle* dp,
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G4double elecKinEnergy,
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G4double posiKinEnergy,
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G4ThreeVector& dirElectron,
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G4ThreeVector& dirPositron,
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G4int Z = 0,
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const G4Material* mat = nullptr) final;
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void PrintGeneratorInformation() const final;
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// hide assignment operator
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G4ModifiedTsai & operator=(const G4ModifiedTsai &right) = delete;
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G4ModifiedTsai(const G4ModifiedTsai&) = delete;
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private:
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G4double SampleCosTheta(G4double kinEnergy);
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};
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#endif
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