include/Geant4/G4IRTUtils.hh

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 #ifndef G4IRTUtils_hh
0027 #define G4IRTUtils_hh
0028
0029 #include "globals.hh"
0030 #include <memory>
0031
0032 class G4ErrorFunction;
0033 class G4IRTUtils {
0034
0035 public:
0036     G4IRTUtils() = default;
0037    ~G4IRTUtils() = default;
0038     static G4double EffectiveDistance(const G4double& rc,
0039                                       const G4double& r0);
0040
0041     static G4double GetKact(const G4double& obs,
0042                             const G4double& dif)
0043     {
0044         return (obs == 0 || dif == 0) ? 0 : dif * obs/(dif - obs);
0045     }
0046
0047     static G4double GetRCutOff();
0048     static G4double GetRCutOff(G4double tCutOff);
0049     static G4double GetDNADistanceCutOff();
0050 };
0051
0052
0053
0054 #endif
0055