00001 // 00002 // ******************************************************************** 00003 // * License and Disclaimer * 00004 // * * 00005 // * The Geant4 software is copyright of the Copyright Holders of * 00006 // * the Geant4 Collaboration. It is provided under the terms and * 00007 // * conditions of the Geant4 Software License, included in the file * 00008 // * LICENSE and available at http://cern.ch/geant4/license . These * 00009 // * include a list of copyright holders. * 00010 // * * 00011 // * Neither the authors of this software system, nor their employing * 00012 // * institutes,nor the agencies providing financial support for this * 00013 // * work make any representation or warranty, express or implied, * 00014 // * regarding this software system or assume any liability for its * 00015 // * use. Please see the license in the file LICENSE and URL above * 00016 // * for the full disclaimer and the limitation of liability. * 00017 // * * 00018 // * This code implementation is the result of the scientific and * 00019 // * technical work of the GEANT4 collaboration. * 00020 // * By using, copying, modifying or distributing the software (or * 00021 // * any work based on the software) you agree to acknowledge its * 00022 // * use in resulting scientific publications, and indicate your * 00023 // * acceptance of all terms of the Geant4 Software license. * 00024 // ******************************************************************** 00025 // 00026 // 00027 // Implementation of the HETC88 code into Geant4. 00028 // Evaporation and De-excitation parts 00029 // T. Lampen, Helsinki Institute of Physics, May-2000 00030 00031 #include "G4BEHe4Channel.hh" 00032 #include "G4Alpha.hh" 00033 00034 G4BEHe4Channel::G4BEHe4Channel() 00035 { 00036 name = "He4"; 00037 verboseLevel = 0; 00038 particleA = 4; 00039 particleZ = 2; 00040 rho = 0.70588; 00041 A=4; 00042 spin = 0; 00043 } 00044 00045 00046 G4BEHe4Channel::~G4BEHe4Channel() 00047 { 00048 } 00049 00050 00051 G4DynamicParticle * G4BEHe4Channel::emit() 00052 { 00053 G4double u , v , w; 00054 G4DynamicParticle * pParticle = new G4DynamicParticle; 00055 pParticle -> SetDefinition( G4Alpha::Alpha() ); 00056 pParticle -> SetKineticEnergy( sampleKineticEnergy() ); 00057 isotropicCosines( u , v , w ); 00058 pParticle -> SetMomentumDirection( u , v , w ); 00059 return pParticle; 00060 } 00061 00062 00063 G4double G4BEHe4Channel::coulombFactor() 00064 { 00065 return 0; 00066 } 00067 00068 00069 G4double G4BEHe4Channel::qmFactor() 00070 { 00071 // Coefficient representing the quantum mechanical barrier 00072 // penetration, see Dostrovsky, Phys. Rev. 116, 1959. 00073 return qmFactorForAlpha(); 00074 }