Geant4  9.6.p02
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ExN04Field.cc
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26 
27 #include "ExN04Field.hh"
28 #include "G4SystemOfUnits.hh"
29 
31 {
32  Bz = 3.0*tesla;
33  rmax_sq = sqr(50.*cm);
34  zmax = 100.*cm;
35 }
36 
38 {;}
39 
40 void ExN04Field::GetFieldValue(const double Point[3],double *Bfield) const
41 {
42  Bfield[0] = 0.;
43  Bfield[1] = 0.;
44  if(std::abs(Point[2])<zmax && (sqr(Point[0])+sqr(Point[1]))<rmax_sq)
45  { Bfield[2] = Bz; }
46  else
47  { Bfield[2] = 0.; }
48 }
49