// // ******************************************************************** // * 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. * // ******************************************************************** // #include "globals.hh" #include "G4ios.hh" #include "G4XNNElasticLowE.hh" #include "G4KineticTrack.hh" #include "G4ParticleDefinition.hh" #include "G4PhysicsVector.hh" #include "G4PhysicsLnVector.hh" #include "G4ParticleDefinition.hh" #include "G4Proton.hh" #include "G4Neutron.hh" const G4double G4XNNElasticLowE::_lowLimit = 0.; const G4double G4XNNElasticLowE::_highLimit = 3.*GeV; // Low energy limit of the cross-section table (in GeV) // Units are assigned while filling the PhysicsVector const G4double G4XNNElasticLowE::_eMinTable = 1.8964808; const G4double G4XNNElasticLowE::_eStepLog = 0.01; // Cross-sections in mb // Units are assigned while filling the PhysicsVector const G4int G4XNNElasticLowE::tableSize = 101; const G4double G4XNNElasticLowE::ppTable[101] = { 60.00, //was 0. 33.48, 26.76, 25.26, 24.55, 23.94, 23.77, 23.72, 23.98, 25.48, 27.52, 27.72, 27.21, 25.80, 26.00, 24.32, 23.81, 24.37, 24.36, 23.13, 22.43, 21.71, 21.01, 20.83, 20.74, 20.25, 20.10, 20.59, 20.04, 20.83, 20.84, 21.07, 20.83, 20.79, 21.88, 21.15, 20.92, 19.00, 18.60, 17.30, 17.00, 16.70, 16.50, 16.20, 15.80, 15.57, 15.20, 15.00, 14.60, 14.20, 14.00, 13.80, 13.60, 13.40, 13.20, 13.00, 12.85, 12.70, 12.60, 12.50, 12.40, 12.30, 12.20, 12.10, 12.00, 11.90, 11.80, 11.75, 11.70, 11.64, 11.53, 11.41, 11.31, 11.22, 11.13, 11.05, 10.97, 10.89, 10.82, 10.75, 10.68, 10.61, 10.54, 10.48, 10.41, 10.35, 10.28, 10.22, 10.16, 10.13, 10.10, 10.08, 10.05, 10.02, 9.99, 9.96, 9.93, 9.90, 9.87, 9.84, 9.80 }; const G4double G4XNNElasticLowE::npTable[101] = { 1500.00, // was 0. 248.20, 93.38, 55.26, 44.50, 41.33, 38.48, 37.20, 35.98, 35.02, 34.47, 32.48, 30.76, 29.46, 28.53, 27.84, 27.20, 26.53, 25.95, 25.59, 25.46, 25.00, 24.49, 24.08, 23.86, 23.17, 22.70, 21.88, 21.48, 20.22, 19.75, 18.97, 18.39, 17.98, 17.63, 17.21, 16.72, 16.68, 16.58, 16.42, 16.22, 15.98, 15.71, 15.42, 15.14, 14.87, 14.65, 14.44, 14.26, 14.10, 13.95, 13.80, 13.64, 13.47, 13.29, 13.09, 12.89, 12.68, 12.47, 12.27, 12.06, 11.84, 11.76, 11.69, 11.60, 11.50, 11.41, 11.29, 11.17, 11.06, 10.93, 10.81, 10.68, 10.56, 10.44, 10.33, 10.21, 10.12, 10.03, 9.96, 9.89, 9.83, 9.80, 9.77, 9.75, 9.74, 9.74, 9.74, 9.76, 9.73, 9.70, 9.68, 9.65, 9.63, 9.60, 9.57, 9.55, 9.52, 9.49, 9.46, 9.43 }; G4XNNElasticLowE::G4XNNElasticLowE() { // Cross-sections are available in the range (_eMin,_eMax) _eMin = _eMinTable * GeV; _eMax = std::exp(std::log(_eMinTable) + tableSize * _eStepLog) * GeV; if (_eMin < _lowLimit) throw G4HadronicException(__FILE__, __LINE__, "G4XNNElasticLowE::G4XNNElasticLowE - Low energy limit not valid"); if (_highLimit > _eMax) throw G4HadronicException(__FILE__, __LINE__, "G4XNNElasticLowE::G4XNNElasticLowE - High energy limit not valid"); G4PhysicsVector* pp = new G4PhysicsLnVector(_eMin,_eMax,tableSize); _eMin = std::exp(std::log(_eMinTable)-_eStepLog)*GeV; if (_eMin < _lowLimit) throw G4HadronicException(__FILE__, __LINE__, "G4XNNElasticLowE::G4XNNElasticLowE - Low energy limit not valid"); G4PhysicsVector* np = new G4PhysicsLnVector(_eMin,_eMax,tableSize); G4int i; for (i=0; iPutValue(i,value); value = npTable[i] * millibarn; np->PutValue(i,value); } xMap[G4Proton::ProtonDefinition()->GetParticleName()] = pp; xMap[G4Neutron::NeutronDefinition()->GetParticleName()] = np; } G4XNNElasticLowE::~G4XNNElasticLowE() { G4String name_proton = "proton"; G4String name_neutron = "neutron"; delete xMap[name_proton]; delete xMap[name_neutron]; } G4bool G4XNNElasticLowE::operator==(const G4XNNElasticLowE &right) const { return (this == (G4XNNElasticLowE *) &right); } G4bool G4XNNElasticLowE::operator!=(const G4XNNElasticLowE &right) const { return (this != (G4XNNElasticLowE *) &right); } G4double G4XNNElasticLowE::CrossSection(const G4KineticTrack& trk1, const G4KineticTrack& trk2) const { G4double sigma = 0.; G4double sqrtS = (trk1.Get4Momentum() + trk2.Get4Momentum()).mag(); G4bool dummy = false; G4String key = FindKeyParticle(trk1,trk2); typedef std::map > StringPhysMap; if (xMap.find(key)!= xMap.end()) { StringPhysMap::const_iterator iter; for (iter = xMap.begin(); iter != xMap.end(); ++iter) { G4String str = (*iter).first; if (str == key) { G4PhysicsVector* physVector = (*iter).second; // G4PhysicsVector* physVector = xMap[key]; if (sqrtS >= _eMin && sqrtS <= _eMax) { sigma = physVector->GetValue(sqrtS,dummy); } else if ( sqrtS < _eMin ) { sigma = physVector->GetValue(_eMin,dummy); } } } } return sigma; } void G4XNNElasticLowE::Print() const { // Dump the pp cross-section table G4cout << Name() << ", pp cross-section: " << G4endl; G4bool dummy = false; G4int i; G4String key = G4Proton::ProtonDefinition()->GetParticleName(); G4PhysicsVector* pp = 0; typedef std::map > StringPhysMap; StringPhysMap::const_iterator iter; for (iter = xMap.begin(); iter != xMap.end(); ++iter) { G4String str = (*iter).first; if (str == key) { pp = (*iter).second; } } if (pp != 0) { for (i=0; iGetLowEdgeEnergy(i); G4double sigma = pp->GetValue(e,dummy) / millibarn; G4cout << i << ") e = " << e / GeV << " GeV ---- Cross section = " << sigma << " mb " << G4endl; } } // Dump the np cross-section table G4cout << Name() << ", np cross-section: " << G4endl; key = G4Neutron::NeutronDefinition()->GetParticleName(); G4PhysicsVector* np = 0; for (iter = xMap.begin(); iter != xMap.end(); ++iter) { G4String str = (*iter).first; if (str == key) { np = (*iter).second; } } // G4PhysicsVector* np = xMap[G4Neutron::NeutronDefinition()->GetParticleName()]; if (np != 0) { for (i=0; iGetLowEdgeEnergy(i); G4double sigma = np->GetValue(e,dummy) / millibarn; G4cout << i << ") e = " << e / GeV << " GeV ---- Cross section = " << sigma << " mb " << G4endl; } } G4VCrossSectionSource::Print(); } G4String G4XNNElasticLowE::Name() const { G4String name("NNElasticLowE"); return name; } G4bool G4XNNElasticLowE::IsValid(G4double e) const { G4bool answer = InLimits(e,_lowLimit,_highLimit); return answer; }