| Geant4 Cross Reference |
1 // 1
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25 //
26 //////////////////////////////////////////////
27 //
28 // File: G4BetaSpectrumSampler.cc
29 // Author: D.H. Wright
30 // Date: 21 November 2022
31 // Description: samples a spectrum which is a
32 // energy. The CDF is calculated
33 // and within bins the line y =
34 //
35 //////////////////////////////////////////////
36
37 #include "G4BetaSpectrumSampler.hh"
38 #include "Randomize.hh"
39
40 G4double G4BetaSpectrumSampler::shoot(const G4
41 const G4
42 {
43 G4double prob = aCDF[npoints - 1]*G4UniformR
44 G4int i = 0;
45 for (; i<npoints; ++i) { if (prob <= aCDF[i]
46 const G4double p1 = (i > 0) ? aCDF[i - 1] :
47 const G4double p2 = aCDF[i];
48 const G4double delta = p2 - p1;
49 const G4double x = (delta > 0.0) ? estep*i -
50 return x;
51 }
52
53