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0001 //
0002 // ********************************************************************
0003 // * License and Disclaimer                                           *
0004 // *                                                                  *
0005 // * The  Geant4 software  is  copyright of the Copyright Holders  of *
0006 // * the Geant4 Collaboration.  It is provided  under  the terms  and *
0007 // * conditions of the Geant4 Software License,  included in the file *
0008 // * LICENSE and available at  http://cern.ch/geant4/license .  These *
0009 // * include a list of copyright holders.                             *
0010 // *                                                                  *
0011 // * Neither the authors of this software system, nor their employing *
0012 // * institutes,nor the agencies providing financial support for this *
0013 // * work  make  any representation or  warranty, express or implied, *
0014 // * regarding  this  software system or assume any liability for its *
0015 // * use.  Please see the license in the file  LICENSE  and URL above *
0016 // * for the full disclaimer and the limitation of liability.         *
0017 // *                                                                  *
0018 // * This  code  implementation is the result of  the  scientific and *
0019 // * technical work of the GEANT4 collaboration.                      *
0020 // * By using,  copying,  modifying or  distributing the software (or *
0021 // * any work based  on the software)  you  agree  to acknowledge its *
0022 // * use  in  resulting  scientific  publications,  and indicate your *
0023 // * acceptance of all terms of the Geant4 Software license.          *
0024 // ********************************************************************
0025 //
0026 //
0027 // -------------------------------------------------------------------
0028 //
0029 // GEANT4 Class header file
0030 //
0031 //
0032 // File name:     G4UrbanFluctuation
0033 //
0034 // Author:        V.Ivanchenko make a class with the Laszlo Urban model
0035 //
0036 // Creation date: 14.02.2022
0037 //
0038 // Modifications:
0039 //
0040 //
0041 // Class Description:
0042 //
0043 // Implementation of energy loss fluctuations made by L.Urban for 
0044 // Geant4 10.X series for updated design of 11.X by V.Ivanchenko
0045 
0046 // -------------------------------------------------------------------
0047 //
0048 
0049 #ifndef G4UrbanFluctuation_h
0050 #define G4UrbanFluctuation_h 1
0051 
0052 #include "G4UniversalFluctuation.hh"
0053 
0054 class G4UrbanFluctuation : public G4UniversalFluctuation
0055 {
0056 
0057 public:
0058 
0059   explicit G4UrbanFluctuation(const G4String& nam = "UrbanFluc");
0060 
0061   ~G4UrbanFluctuation() override;
0062 
0063   // hide assignment operator
0064   G4UrbanFluctuation & operator =
0065   (const G4UrbanFluctuation &right) = delete;
0066   G4UrbanFluctuation(const G4UrbanFluctuation&) = delete;
0067 
0068 protected:
0069 
0070   G4double SampleGlandz(CLHEP::HepRandomEngine* rndm, 
0071                         const G4Material*, const G4double tcut) override;
0072 
0073 private:
0074 
0075   // material properties
0076   const G4Material* lastMaterial = nullptr;
0077   G4double f1Fluct = 0.0;
0078   G4double f2Fluct = 0.0;
0079   G4double e1Fluct = 0.0;
0080   G4double e2Fluct = 0.0;
0081   G4double e1LogFluct = 0.0;
0082   G4double e2LogFluct = 0.0;
0083   G4double esmall = 0.0;
0084 };
0085 
0086 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
0087 
0088 #endif