[819] | 1 | // |
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| 2 | // ******************************************************************** |
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| 3 | // * License and Disclaimer * |
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| 4 | // * * |
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| 5 | // * The Geant4 software is copyright of the Copyright Holders of * |
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| 6 | // * the Geant4 Collaboration. It is provided under the terms and * |
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| 7 | // * conditions of the Geant4 Software License, included in the file * |
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| 8 | // * LICENSE and available at http://cern.ch/geant4/license . These * |
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| 9 | // * include a list of copyright holders. * |
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| 10 | // * * |
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| 11 | // * Neither the authors of this software system, nor their employing * |
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| 12 | // * institutes,nor the agencies providing financial support for this * |
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| 13 | // * work make any representation or warranty, express or implied, * |
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| 14 | // * regarding this software system or assume any liability for its * |
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| 15 | // * use. Please see the license in the file LICENSE and URL above * |
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| 16 | // * for the full disclaimer and the limitation of liability. * |
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| 17 | // * * |
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| 18 | // * This code implementation is the result of the scientific and * |
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| 19 | // * technical work of the GEANT4 collaboration. * |
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| 20 | // * By using, copying, modifying or distributing the software (or * |
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| 21 | // * any work based on the software) you agree to acknowledge its * |
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| 22 | // * use in resulting scientific publications, and indicate your * |
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| 23 | // * acceptance of all terms of the Geant4 Software license. * |
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| 24 | // ******************************************************************** |
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| 25 | // |
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| 26 | // |
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| 27 | // $Id: G4hLowEnergyLoss.hh,v 1.17 2006/06/29 19:37:58 gunter Exp $ |
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[1228] | 28 | // GEANT4 tag $Name: geant4-09-03 $ |
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[819] | 29 | // |
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| 30 | // $Id: |
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| 31 | // ------------------------------------------------------------ |
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| 32 | // GEANT 4 class header file |
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| 33 | // |
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| 34 | // History: first implementation, based on object model of |
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| 35 | // 2nd December 1995, G.Cosmo |
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| 36 | // ---------- G4hEnergyLoss physics process ----------- |
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| 37 | // by Laszlo Urban, 30 May 1997 |
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| 38 | // |
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| 39 | // ************************************************************ |
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| 40 | // It is the first implementation of the NEW UNIFIED ENERGY LOSS PROCESS. |
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| 41 | // It calculates the continuous energy loss for charged hadrons. |
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| 42 | // Processes giving contribution to the continuous loss : |
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| 43 | // ionisation (= cont.ion.loss + delta ray production) |
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| 44 | // can be added more easily .......... |
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| 45 | // This class creates static proton/antiproton dE/dx and range tables , |
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| 46 | // which tables can be used by other processes. |
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| 47 | // The energy loss for other charged hadrons is calculated from the p/pbar |
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| 48 | // tables with scaled kinetic energy. |
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| 49 | // |
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| 50 | // 7/10/98 L.Urban some bugs fixed + some cleanup |
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| 51 | // 22/10/98 L.Urban cleanup |
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| 52 | // 02/02/99 L.Urban several bugs fixed |
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| 53 | // 31/03/00 V.Ivanchenko rename to lowenergy as G4hLowEnergyLoss.hh |
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| 54 | // 09/08/00 V.Ivanchenko remove GetContinuousStepLimit and IsApplicable |
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| 55 | // 23/11/01 V.Ivanchenko Move static member-functions from header to source |
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| 56 | // 22/01/03 V.Ivanchenko Cuts per region |
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| 57 | // 18/04/03 V.Ivanchenko Make dRoverRange protected |
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| 58 | // |
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| 59 | // Class description: |
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| 60 | // Class for Low Energy electromagnetic energy loss of hadrons |
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| 61 | // Further documentation available from http://www.ge.infn.it/geant4/lowE |
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| 62 | |
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| 63 | // **************************************************************************** |
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| 64 | |
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| 65 | #ifndef G4hLowEnergyLoss_h |
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| 66 | #define G4hLowEnergyLoss_h 1 |
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| 67 | |
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| 68 | #include "G4ios.hh" |
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| 69 | #include "globals.hh" |
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| 70 | #include "Randomize.hh" |
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| 71 | #include "G4VContinuousDiscreteProcess.hh" |
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| 72 | #include "G4Material.hh" |
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| 73 | #include "G4Element.hh" |
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| 74 | #include "G4Proton.hh" |
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| 75 | #include "G4AntiProton.hh" |
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| 76 | #include "G4Electron.hh" |
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| 77 | #include "G4VParticleChange.hh" |
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| 78 | #include "G4Track.hh" |
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| 79 | #include "G4Step.hh" |
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| 80 | #include "G4PhysicsLogVector.hh" |
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| 81 | #include "G4PhysicsLinearVector.hh" |
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| 82 | |
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| 83 | class G4EnergyLossMessenger; |
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| 84 | |
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| 85 | class G4hLowEnergyLoss : public G4VContinuousDiscreteProcess |
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| 86 | |
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| 87 | { |
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| 88 | public: |
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| 89 | |
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| 90 | G4hLowEnergyLoss(const G4String& ); |
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| 91 | |
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| 92 | ~G4hLowEnergyLoss(); |
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| 93 | |
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| 94 | virtual G4double GetMeanFreePath( |
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| 95 | const G4Track& track, |
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| 96 | G4double previousStepSize, |
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| 97 | enum G4ForceCondition* condition |
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| 98 | ) = 0 ; |
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| 99 | |
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| 100 | virtual G4VParticleChange* PostStepDoIt(const G4Track& track, |
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| 101 | const G4Step& Step) = 0 ; |
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| 102 | |
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| 103 | |
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| 104 | protected: |
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| 105 | |
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| 106 | G4bool CutsWhereModified(); |
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| 107 | |
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| 108 | private: |
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| 109 | |
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| 110 | // hide assignment operator |
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| 111 | |
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| 112 | G4hLowEnergyLoss(G4hLowEnergyLoss &); |
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| 113 | G4hLowEnergyLoss & operator=(const G4hLowEnergyLoss &right); |
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| 114 | |
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| 115 | |
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| 116 | // ===================================================================== |
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| 117 | |
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| 118 | public: |
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| 119 | |
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| 120 | private: |
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| 121 | |
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| 122 | // variables for the integration routines |
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| 123 | static G4double Mass,taulow,tauhigh,ltaulow,ltauhigh; |
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| 124 | |
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| 125 | protected: |
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| 126 | // G4Material *lastMaterial ; |
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| 127 | const G4double MaxExcitationNumber ; |
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| 128 | const G4double probLimFluct ; |
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| 129 | const long nmaxDirectFluct,nmaxCont1,nmaxCont2 ; |
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| 130 | |
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| 131 | // ==================================================================== |
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| 132 | // static part of the class |
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| 133 | |
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| 134 | public: |
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| 135 | |
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| 136 | // get the number of processes contributing to the cont.energy loss |
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| 137 | static G4int GetNumberOfProcesses(); |
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| 138 | |
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| 139 | // set the number of processes contributing to the cont.energy loss |
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| 140 | static void SetNumberOfProcesses(G4int number); |
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| 141 | |
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| 142 | // Increment the number of processes contributing to the cont.energy loss |
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| 143 | static void PlusNumberOfProcesses(); |
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| 144 | |
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| 145 | // decrement the number of processes contributing to the cont.energy loss |
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| 146 | static void MinusNumberOfProcesses(); |
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| 147 | |
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| 148 | static void SetdRoverRange(G4double value); |
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| 149 | static void SetRndmStep (G4bool value); |
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| 150 | static void SetEnlossFluc (G4bool value); |
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| 151 | static void SetStepFunction (G4double c1, G4double c2); |
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| 152 | |
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| 153 | protected: |
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| 154 | |
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| 155 | static void BuildDEDXTable(const G4ParticleDefinition& aParticleType); |
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| 156 | |
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| 157 | private: |
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| 158 | |
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| 159 | static void BuildRangeTable(const G4ParticleDefinition& aParticleType); |
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| 160 | |
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| 161 | static void BuildInverseRangeTable( |
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| 162 | const G4ParticleDefinition& aParticleType); |
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| 163 | |
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| 164 | static void BuildTimeTables(const G4ParticleDefinition& aParticleType); |
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| 165 | |
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| 166 | static void BuildLabTimeVector(G4int materialIndex, |
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| 167 | G4PhysicsLogVector* rangeVector); |
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| 168 | |
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| 169 | static void BuildProperTimeVector(G4int materialIndex, |
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| 170 | G4PhysicsLogVector* rangeVector); |
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| 171 | |
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| 172 | static void InvertRangeVector(G4int materialIndex, |
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| 173 | G4PhysicsLogVector* rangeVector); |
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| 174 | |
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| 175 | static void BuildRangeVector(G4int materialIndex, |
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| 176 | G4PhysicsLogVector* rangeVector); |
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| 177 | |
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| 178 | static G4double LabTimeIntLog(G4PhysicsVector* physicsVector |
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| 179 | ,G4int nbin); |
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| 180 | |
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| 181 | static G4double ProperTimeIntLog(G4PhysicsVector* physicsVector, |
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| 182 | G4int nbin); |
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| 183 | |
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| 184 | static G4double RangeIntLin(G4PhysicsVector* physicsVector |
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| 185 | ,G4int nbin); |
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| 186 | |
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| 187 | static G4double RangeIntLog(G4PhysicsVector* physicsVector |
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| 188 | ,G4int nbin); |
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| 189 | |
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| 190 | static void BuildRangeCoeffATable( |
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| 191 | const G4ParticleDefinition& aParticleType); |
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| 192 | static void BuildRangeCoeffBTable( |
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| 193 | const G4ParticleDefinition& aParticleType); |
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| 194 | static void BuildRangeCoeffCTable( |
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| 195 | const G4ParticleDefinition& aParticleType); |
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| 196 | |
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| 197 | // ==================================================================== |
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| 198 | |
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| 199 | public: |
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| 200 | |
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| 201 | protected: |
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| 202 | |
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| 203 | static G4PhysicsTable* theDEDXpTable ; |
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| 204 | static G4PhysicsTable* theDEDXpbarTable ; |
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| 205 | static G4PhysicsTable* theRangepTable ; |
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| 206 | static G4PhysicsTable* theRangepbarTable ; |
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| 207 | |
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| 208 | //inverse of the range tables |
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| 209 | static G4PhysicsTable* theInverseRangepTable ; |
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| 210 | static G4PhysicsTable* theInverseRangepbarTable ; |
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| 211 | |
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| 212 | //lab and proper time tables |
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| 213 | static G4PhysicsTable* theLabTimepTable ; |
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| 214 | static G4PhysicsTable* theLabTimepbarTable ; |
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| 215 | |
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| 216 | static G4PhysicsTable* theProperTimepTable ; |
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| 217 | static G4PhysicsTable* theProperTimepbarTable ; |
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| 218 | |
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| 219 | // processes inherited from G4hLowEnergyLoss |
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| 220 | // register themselves in the static array Recorder |
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| 221 | static G4PhysicsTable** RecorderOfpProcess; |
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| 222 | static G4PhysicsTable** RecorderOfpbarProcess; |
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| 223 | static G4int CounterOfpProcess ; |
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| 224 | static G4int CounterOfpbarProcess ; |
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| 225 | |
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| 226 | // particle mass |
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| 227 | static G4double ParticleMass ; |
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| 228 | |
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| 229 | // cut in range |
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| 230 | static G4double ptableElectronCutInRange; |
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| 231 | static G4double pbartableElectronCutInRange; |
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| 232 | |
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| 233 | static G4double Charge ; |
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| 234 | |
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| 235 | |
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| 236 | static G4double LowestKineticEnergy; |
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| 237 | static G4double HighestKineticEnergy; |
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| 238 | static G4int TotBin; // number of bins in table, |
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| 239 | // calculated in BuildPhysicsTable |
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| 240 | |
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| 241 | static G4double RTable,LOGRTable; // LOGRTable=std::log(HighestKineticEnergy |
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| 242 | // /LowestKineticEnergy)/TotBin |
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| 243 | // RTable = std::exp(LOGRTable) |
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| 244 | private: |
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| 245 | |
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| 246 | static G4PhysicsTable* theDEDXTable; |
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| 247 | |
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| 248 | static G4PhysicsTable* theRangeTable; |
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| 249 | static G4PhysicsTable* theInverseRangeTable; |
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| 250 | |
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| 251 | static G4PhysicsTable* theLabTimeTable; |
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| 252 | static G4PhysicsTable* theProperTimeTable; |
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| 253 | |
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| 254 | static G4PhysicsTable** RecorderOfProcess; |
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| 255 | static G4int CounterOfProcess; |
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| 256 | |
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| 257 | static G4PhysicsTable* thepRangeCoeffATable; |
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| 258 | static G4PhysicsTable* thepRangeCoeffBTable; |
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| 259 | static G4PhysicsTable* thepRangeCoeffCTable; |
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| 260 | static G4PhysicsTable* thepbarRangeCoeffATable; |
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| 261 | static G4PhysicsTable* thepbarRangeCoeffBTable; |
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| 262 | static G4PhysicsTable* thepbarRangeCoeffCTable; |
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| 263 | |
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| 264 | static G4PhysicsTable* theRangeCoeffATable; |
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| 265 | static G4PhysicsTable* theRangeCoeffBTable; |
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| 266 | static G4PhysicsTable* theRangeCoeffCTable; |
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| 267 | static G4int NumberOfProcesses ; |
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| 268 | |
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| 269 | protected: |
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| 270 | |
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| 271 | G4PhysicsTable* theLossTable ; |
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| 272 | |
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| 273 | G4double linLossLimit ; |
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| 274 | |
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| 275 | G4double MinKineticEnergy ; |
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| 276 | |
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| 277 | static G4double dRoverRange ; // maximum allowed deltarange/range |
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| 278 | // in one step |
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| 279 | static G4double finalRange ; // last step before stop |
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| 280 | static G4double c1lim,c2lim,c3lim ; // coeffs for computing steplimit |
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| 281 | |
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| 282 | static G4bool rndmStepFlag ; |
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| 283 | static G4bool EnlossFlucFlag ; |
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| 284 | |
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| 285 | }; |
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| 286 | |
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| 287 | #endif |
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| 288 | |
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| 289 | |
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| 290 | |
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