Gabriele Cosmo
72 lines
3.1 KiB
C++
72 lines
3.1 KiB
C++
//
|
|
// ********************************************************************
|
|
// * License and Disclaimer *
|
|
// * *
|
|
// * The Geant4 software is copyright of the Copyright Holders of *
|
|
// * the Geant4 Collaboration. It is provided under the terms and *
|
|
// * conditions of the Geant4 Software License, included in the file *
|
|
// * LICENSE and available at http://cern.ch/geant4/license . These *
|
|
// * include a list of copyright holders. *
|
|
// * *
|
|
// * Neither the authors of this software system, nor their employing *
|
|
// * institutes,nor the agencies providing financial support for this *
|
|
// * work make any representation or warranty, express or implied, *
|
|
// * regarding this software system or assume any liability for its *
|
|
// * use. Please see the license in the file LICENSE and URL above *
|
|
// * for the full disclaimer and the limitation of liability. *
|
|
// * *
|
|
// * This code implementation is the result of the scientific and *
|
|
// * technical work of the GEANT4 collaboration. *
|
|
// * By using, copying, modifying or distributing the software (or *
|
|
// * any work based on the software) you agree to acknowledge its *
|
|
// * use in resulting scientific publications, and indicate your *
|
|
// * acceptance of all terms of the Geant4 Software license. *
|
|
// ********************************************************************
|
|
//
|
|
// G4ILawTruncatedExp
|
|
//
|
|
// Class Description:
|
|
//
|
|
// A G4VBiasingInteractionLaw representing a truncated exponential
|
|
// law : an exponential law acting on [0,L] segment. The law is
|
|
// driven by a cross-section.
|
|
//
|
|
// Author: Marc Verderi, November 2013.
|
|
// --------------------------------------------------------------------
|
|
#ifndef G4ILawTruncatedExp_hh
|
|
#define G4ILawTruncatedExp_hh 1
|
|
|
|
#include "G4VBiasingInteractionLaw.hh"
|
|
|
|
class G4ILawTruncatedExp : public G4VBiasingInteractionLaw
|
|
{
|
|
public:
|
|
|
|
G4ILawTruncatedExp(const G4String& name = "expForceInteractionLaw");
|
|
virtual ~G4ILawTruncatedExp();
|
|
|
|
virtual G4double ComputeEffectiveCrossSectionAt(G4double length) const;
|
|
virtual G4double ComputeNonInteractionProbabilityAt(G4double length) const;
|
|
// -- sample the distribution
|
|
virtual G4double SampleInteractionLength();
|
|
// -- move by true path length, this position becomes the new initial point
|
|
virtual G4double UpdateInteractionLengthForStep(G4double truePathLength);
|
|
virtual G4bool IsSingular() const { return fIsSingular; }
|
|
|
|
void SetForceCrossSection(G4double xs);
|
|
|
|
void SetMaximumDistance(G4double d) { fMaximumDistance = d; }
|
|
G4double GetMaximumDistance() const { return fMaximumDistance; }
|
|
G4double GetInteractionDistance() const { return fInteractionDistance; }
|
|
|
|
private:
|
|
|
|
G4double fMaximumDistance = 0.0;
|
|
G4double fCrossSection = 0.0;
|
|
G4bool fCrossSectionDefined = false;
|
|
G4bool fIsSingular = false;
|
|
G4double fInteractionDistance = 0.0;
|
|
};
|
|
|
|
#endif
|