Geant4  10.03.p03
 All Classes Namespaces Files Functions Variables Typedefs Enumerations Enumerator Friends Macros Groups Pages
G4InteractionLawPhysical.hh
Go to the documentation of this file.
1 //
2 // ********************************************************************
3 // * License and Disclaimer *
4 // * *
5 // * The Geant4 software is copyright of the Copyright Holders of *
6 // * the Geant4 Collaboration. It is provided under the terms and *
7 // * conditions of the Geant4 Software License, included in the file *
8 // * LICENSE and available at http://cern.ch/geant4/license . These *
9 // * include a list of copyright holders. *
10 // * *
11 // * Neither the authors of this software system, nor their employing *
12 // * institutes,nor the agencies providing financial support for this *
13 // * work make any representation or warranty, express or implied, *
14 // * regarding this software system or assume any liability for its *
15 // * use. Please see the license in the file LICENSE and URL above *
16 // * for the full disclaimer and the limitation of liability. *
17 // * *
18 // * This code implementation is the result of the scientific and *
19 // * technical work of the GEANT4 collaboration. *
20 // * By using, copying, modifying or distributing the software (or *
21 // * any work based on the software) you agree to acknowledge its *
22 // * use in resulting scientific publications, and indicate your *
23 // * acceptance of all terms of the Geant4 Software license. *
24 // ********************************************************************
25 //
26 //
27 // $Id: $
28 //
29 // ---------------------------------------------------------------
30 //
31 // G4InteractionLawPhysical
32 //
33 // Class Description:
34 // A G4VBiasingInteractionLaw representing the usual
35 // physical exponential law, of constant cross-section of the step.
36 //
37 // ---------------------------------------------------------------
38 // Initial version Nov. 2013 M. Verderi
39 
40 #ifndef G4InteractionLawPhysical_hh
41 #define G4InteractionLawPhysical_hh 1
42 
44 
46 {
47 public:
48  G4InteractionLawPhysical(G4String name = "exponentialLaw");
49  virtual ~G4InteractionLawPhysical();
50 
51 public:
52  void SetPhysicalCrossSection(G4double crossSection);
53  G4double GetPhysicalCrossSection() const {return fCrossSection;}
54 
55 public:
56  virtual G4double ComputeEffectiveCrossSectionAt(G4double length) const;
58  // -- sample the distribution
60  // -- move by true path length, this position becomes the new initial point
61  virtual G4double UpdateInteractionLengthForStep(G4double truePathLength);
62 
63 
64 private:
65  G4double fCrossSection;
66  G4bool fCrossSectionDefined;
67  G4double fNumberOfInteractionLength;
68 
69 };
70 
71 #endif
const XML_Char * name
Definition: expat.h:151
virtual G4double ComputeNonInteractionProbabilityAt(G4double length) const
virtual G4double UpdateInteractionLengthForStep(G4double truePathLength)
G4InteractionLawPhysical(G4String name="exponentialLaw")
virtual G4double SampleInteractionLength()
virtual G4double ComputeEffectiveCrossSectionAt(G4double length) const
bool G4bool
Definition: G4Types.hh:79
void SetPhysicalCrossSection(G4double crossSection)
G4double GetPhysicalCrossSection() const
double G4double
Definition: G4Types.hh:76