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Gabriele Cosmo
2019-12-06 15:12:28 +01:00
parent b2a62ae692
commit 5baee230e9
2997 changed files with 141580 additions and 98673 deletions
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source/geometry/biasing/include/G4WeightWindowAlgorithm.hh
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@@ -23,57 +23,53 @@
// * acceptance of all terms of the Geant4 Software license. *
// ********************************************************************
//
//
//
// ----------------------------------------------------------------------
// Class G4WeightWindowAlgorithm
// G4WeightWindowAlgorithm
//
// Class description:
//
// Implementation of a weight window algorithm.
// The arguments in the constructor configure the algorithm:
// - upperLimitFaktor: the factor defining the upper weight limit
// W_u = upperLimitFaktor * W_l (W_l lower weight bound)
// - survivalFaktor: used in calculating the survival weight
// W_s = survivalFaktor * W_l
// - upperLimitFactor: the factor defining the upper weight limit
// W_u = upperLimitFactor * W_l (W_l lower weight bound)
// - survivalFactor: used in calculating the survival weight
// W_s = survivalFactor * W_l
// - maxNumberOfSplits: the maximal number of splits allowed
// to be created in one go, and the reciprocal of the minimal
// survival probability in case of Russian roulette
//
// In case of upperLimitFaktor=survivalFaktor=1 the algorithm
// becomes the expected weight algorithm of the importance sampling
// technique.
//
// see also G4VWeightWindowAlgorithm.
// In case of upperLimitFactor=survivalFactor=1 the algorithm becomes
// the expected weight algorithm of the importance sampling technique.
//
// See also G4VWeightWindowAlgorithm.
// Author: Michael Dressel (Michael.Dressel@cern.ch)
// Author: Michael Dressel (CERN), 2003
// ----------------------------------------------------------------------
#ifndef G4WeightWindowAlgorithm_hh
#define G4WeightWindowAlgorithm_hh G4WeightWindowAlgorithm_hh
#ifndef G4WEIGHTWINDOWALGORITHM_HH
#define G4WEIGHTWINDOWALGORITHM_HH 1
#include "G4Nsplit_Weight.hh"
#include "G4VWeightWindowAlgorithm.hh"
class G4WeightWindowAlgorithm : public G4VWeightWindowAlgorithm
{
public: // with description
public: // with description
G4WeightWindowAlgorithm(G4double upperLimitFaktor = 5,
G4double survivalFaktor = 3,
G4int maxNumberOfSplits = 5);
G4WeightWindowAlgorithm(G4double upperLimitFactor = 5,
G4double survivalFactor = 3,
G4int maxNumberOfSplits = 5);
virtual ~G4WeightWindowAlgorithm();
virtual ~G4WeightWindowAlgorithm();
virtual G4Nsplit_Weight Calculate(G4double init_w,
G4double lowerWeightBound) const;
// calculate number of tracks and their weight according
// to the initial track weight and the lower energy bound
virtual G4Nsplit_Weight Calculate(G4double init_w,
G4double lowerWeightBound) const;
// calculate number of tracks and their weight according
// to the initial track weight and the lower energy bound
private:
G4double fUpperLimitFaktor;
G4double fSurvivalFaktor;
G4int fMaxNumberOfSplits;
private:
G4double fUpperLimitFactor = 0.0;
G4double fSurvivalFactor = 0.0;
G4int fMaxNumberOfSplits = 0;
};
#endif