// // ******************************************************************** // * 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. * // ******************************************************************** // // // $Id: G4VEnergyLoss.hh,v 1.18 2006-06-29 19:54:47 gunter Exp $ // GEANT4 tag $Name: not supported by cvs2svn $ // // // ------------------------------------------------------------ // 26.10.01 static inline functions moved to .cc file (mma) // 08.11.01 some static methods,data members are not static L.Urban // 15.01.03 Migrade to cut per region (V.Ivanchenko) // ------------------------------------------------------------ // // Class Description // // General service class for the energy loss classes // // It contains code needed to compute the range tables, // time tables, the inverse range tables and some auxiliary // tables. // The energy loss fluctuation code is here,too. // // All the EnergyLoss classes are inherited from G4VEnergyLoss // class. // // ----------------------------------------------------------- // created on 28 January 2000 by L. Urban // ----------------------------------------------------------- #ifndef G4VEnergyLoss_h #define G4VEnergyLoss_h 1 #include "globals.hh" #include "G4ios.hh" #include "Randomize.hh" #include "G4Poisson.hh" #include "G4Electron.hh" #include "G4VContinuousDiscreteProcess.hh" #include "G4PhysicsLogVector.hh" #include "G4PhysicsLinearVector.hh" #include "G4MaterialCutsCouple.hh" class G4EnergyLossMessenger; class G4VEnergyLoss : public G4VContinuousDiscreteProcess { public: G4VEnergyLoss(const G4String&,G4ProcessType aType = fNotDefined ); virtual ~G4VEnergyLoss(); virtual G4double GetContinuousStepLimit(const G4Track& track, G4double previousStepSize, G4double currentMinimumStep, G4double& currentSafety) = 0 ; virtual G4VParticleChange* AlongStepDoIt(const G4Track& track, const G4Step& Step) = 0 ; virtual G4double GetMeanFreePath(const G4Track& track, G4double previousStepSize, G4ForceCondition* condition) = 0; virtual G4VParticleChange* PostStepDoIt(const G4Track& track, const G4Step& Step) = 0; protected:// with description // code for the energy loss fluctuation G4double GetLossWithFluct(const G4DynamicParticle* aParticle, const G4MaterialCutsCouple* couple, G4double ChargeSquare, G4double MeanLoss, G4double step); // Build range table starting from the DEDXtable G4PhysicsTable* BuildRangeTable(G4PhysicsTable* theDEDXTable, G4PhysicsTable* theRangeTable, G4double Tmin,G4double Tmax,G4int nbin); // Build time tables starting from the DEDXtable G4PhysicsTable* BuildLabTimeTable(G4PhysicsTable* theDEDXTable, G4PhysicsTable* theLabTimeTable, G4double Tmin,G4double Tmax,G4int nbin); G4PhysicsTable* BuildProperTimeTable(G4PhysicsTable* theDEDXTable, G4PhysicsTable* ProperTimeTable, G4double Tmin,G4double Tmax,G4int nbin); // Build tables of coefficients needed for inverting the range table G4PhysicsTable* BuildRangeCoeffATable(G4PhysicsTable* theRangeTable, G4PhysicsTable* theCoeffATable, G4double Tmin,G4double Tmax,G4int nbin); G4PhysicsTable* BuildRangeCoeffBTable(G4PhysicsTable* theRangeTable, G4PhysicsTable* theCoeffBTable, G4double Tmin,G4double Tmax,G4int nbin); G4PhysicsTable* BuildRangeCoeffCTable(G4PhysicsTable* theRangeTable, G4PhysicsTable* theCoeffCTable, G4double Tmin,G4double Tmax,G4int nbin); // Invert range table G4PhysicsTable* BuildInverseRangeTable(G4PhysicsTable* theRangeTable, G4PhysicsTable* theRangeCoeffATable, G4PhysicsTable* theRangeCoeffBTable, G4PhysicsTable* theRangeCoeffCTable, G4PhysicsTable* theInverseRangeTable, G4double Tmin,G4double Tmax,G4int nbin); private: void BuildRangeVector(G4PhysicsTable* theDEDXTable, G4double Tmin,G4double Tmax,G4int nbin, G4int materialIndex,G4PhysicsLogVector* rangeVector); G4double RangeIntLin(G4PhysicsVector* physicsVector,G4int nbin); G4double RangeIntLog(G4PhysicsVector* physicsVector,G4int nbin); void BuildLabTimeVector(G4PhysicsTable* theDEDXTable, G4double Tmin,G4double Tmax,G4int nbin, G4int materialIndex,G4PhysicsLogVector* rangeVector); void BuildProperTimeVector(G4PhysicsTable* theDEDXTable, G4double Tmin,G4double Tmax,G4int nbin, G4int materialIndex,G4PhysicsLogVector* rangeVector); G4double LabTimeIntLog(G4PhysicsVector* physicsVector,G4int nbin); G4double ProperTimeIntLog(G4PhysicsVector* physicsVector,G4int nbin); void InvertRangeVector(G4PhysicsTable* theRangeTable, G4PhysicsTable* theRangeCoeffATable, G4PhysicsTable* theRangeCoeffBTable, G4PhysicsTable* theRangeCoeffCTable, G4double Tmin,G4double Tmax,G4int nbin, G4int materialIndex,G4PhysicsLogVector* rangeVector); protected: G4double ParticleMass; private: // data members to speed up the fluctuation calculation const G4Material* lastMaterial; G4int imat; G4double f1Fluct,f2Fluct,e1Fluct,e2Fluct,rateFluct,ipotFluct; G4double e1LogFluct,e2LogFluct,ipotLogFluct; const G4int nmaxCont1,nmaxCont2 ; // for some integration routines G4double taulow,tauhigh,ltaulow,ltauhigh; // static part of the class public: // With description static void SetRndmStep(G4bool value); // use / do not use randomisation in energy loss steplimit // ( default = no randomisation) static void SetEnlossFluc(G4bool value); // compute energy loss with/without fluctuation // ( default : with fluctuation) static void SetSubSec(G4bool value); // switch on/off the generation of the subcutoff secondaries // ( default = no subcutoff secondary generation ) static void SetMinDeltaCutInRange(G4double value); // sets minimal cut value for the subcutoff secondaries // (i.e. the kinetic energy of these secondaries can not be // smaller than the energy corresponds to MinDeltaCutInRange). static void SetStepFunction (G4double c1, G4double c2); // sets values for data members used to compute the step limit: // dRoverRange : max. relative range change in one step, // finalRange : if range <= finalRange --> last step for the particle. protected: // With description static G4bool EqualCutVectors( G4double* vec1, G4double* vec2 ); static G4double* CopyCutVectors( G4double* dest, G4double* source ); G4bool CutsWhereModified(); // data members protected: static G4double dRoverRange; // dRoverRange is the maximum allowed // deltarange/range in one Step static G4double finalRange; // final step before stopping static G4double finalRangeRequested; //from UI command static G4double c1lim,c2lim,c3lim ; // coeffs for computing steplimit static G4bool rndmStepFlag; // control the randomization of the step static G4bool EnlossFlucFlag; // control the energy loss fluctuation static G4bool subSecFlag; // control the generation of subcutoff delta static G4double MinDeltaCutInRange; // minimum cut for delta rays static G4double* MinDeltaEnergy ; static G4bool* LowerLimitForced ; static G4bool setMinDeltaCutInRange ; static G4EnergyLossMessenger* ELossMessenger; }; #endif