Geant4 Cross Reference

Cross-Referencing   Geant4
Geant4/processes/hadronic/models/de_excitation/evaporation/src/G4TritonEvaporationProbability.cc

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 26 //
 27 // J.M. Quesada (August2008). Based on:
 28 //
 29 // Hadronic Process: Nuclear De-excitations
 30 // by V. Lara (Oct 1998)
 31 //
 32 // Modified:
 33 // 03-09-2008 J.M. Quesada for external choice of inverse cross section option
 34 // 17-11-2010 V.Ivanchenko integer Z and A
 35 
 36 #include "G4TritonEvaporationProbability.hh"
 37 
 38 G4TritonEvaporationProbability::G4TritonEvaporationProbability() :
 39     G4EvaporationProbability(3,1,2.0) 
 40 {}
 41 
 42 G4double G4TritonEvaporationProbability::CalcAlphaParam(const G4Fragment& fr)
 43 {
 44   // Data comes from 
 45   // Dostrovsky, Fraenkel and Friedlander
 46   // Physical Review, vol 116, num. 3 1959
 47   // 
 48   // const G4int size = 5;
 49   // G4double Zlist[5] = { 10.0, 20.0, 30.0, 50.0, 70.0};
 50   // G4double Cp[5] = { 0.50, 0.28, 0.20, 0.15, 0.10};
 51   // C for triton is equal to C for protons divided by 3
 52 
 53   G4int aZ = fr.GetZ_asInt()-GetZ();
 54   G4double C = (aZ <= 70) ? 0.10 :
 55     ((((0.15417e-06*aZ) - 0.29875e-04)*aZ + 0.21071e-02)*aZ 
 56      - 0.66612e-01)*aZ + 0.98375;
 57 
 58   return 1.0 + C/3.0;
 59 }
 60   
 61 G4double G4TritonEvaporationProbability::CalcBetaParam(const G4Fragment& )
 62 { 
 63   return 0.0; 
 64 }
 65 
 66