00001 // 00002 // ******************************************************************** 00003 // * License and Disclaimer * 00004 // * * 00005 // * The Geant4 software is copyright of the Copyright Holders of * 00006 // * the Geant4 Collaboration. It is provided under the terms and * 00007 // * conditions of the Geant4 Software License, included in the file * 00008 // * LICENSE and available at http://cern.ch/geant4/license . These * 00009 // * include a list of copyright holders. * 00010 // * * 00011 // * Neither the authors of this software system, nor their employing * 00012 // * institutes,nor the agencies providing financial support for this * 00013 // * work make any representation or warranty, express or implied, * 00014 // * regarding this software system or assume any liability for its * 00015 // * use. Please see the license in the file LICENSE and URL above * 00016 // * for the full disclaimer and the limitation of liability. * 00017 // * * 00018 // * This code implementation is the result of the scientific and * 00019 // * technical work of the GEANT4 collaboration. * 00020 // * By using, copying, modifying or distributing the software (or * 00021 // * any work based on the software) you agree to acknowledge its * 00022 // * use in resulting scientific publications, and indicate your * 00023 // * acceptance of all terms of the Geant4 Software license. * 00024 // ******************************************************************** 00025 // 00026 // $Id$ 00027 // 00028 //--------------------------------------------------------------------------- 00029 // 00030 // ClassName: G4FTFPNeutronBuilder 00031 // 00032 // Author: 2002 J.P. Wellisch 00033 // 00034 // Modified: 00035 // 18.11.2010 G.Folger, use G4CrossSectionPairGG for relativistic rise of cross 00036 // section at high energies. 00037 // 30.03.2009 V.Ivanchenko create cross section by new 00038 // 00039 //---------------------------------------------------------------------------- 00040 // 00041 #include "G4FTFPNeutronBuilder.hh" 00042 #include "G4SystemOfUnits.hh" 00043 #include "G4ParticleDefinition.hh" 00044 #include "G4ParticleTable.hh" 00045 #include "G4ProcessManager.hh" 00046 #include "G4BGGNucleonInelasticXS.hh" 00047 00048 G4FTFPNeutronBuilder:: 00049 G4FTFPNeutronBuilder(G4bool quasiElastic) 00050 { 00051 theMin = 4*GeV; 00052 theMax = 100*TeV; 00053 theModel = new G4TheoFSGenerator("FTFP"); 00054 00055 theStringModel = new G4FTFModel; 00056 theStringDecay = new G4ExcitedStringDecay(theLund = new G4LundStringFragmentation); 00057 theStringModel->SetFragmentationModel(theStringDecay); 00058 00059 thePreEquilib = new G4PreCompoundModel(theHandler = new G4ExcitationHandler); 00060 theCascade = new G4GeneratorPrecompoundInterface(thePreEquilib); 00061 00062 theModel->SetTransport(theCascade); 00063 00064 theModel->SetHighEnergyGenerator(theStringModel); 00065 if (quasiElastic) 00066 { 00067 theQuasiElastic=new G4QuasiElasticChannel; 00068 theModel->SetQuasiElasticChannel(theQuasiElastic); 00069 } else 00070 { theQuasiElastic=0;} 00071 00072 theModel->SetMinEnergy(theMin); 00073 theModel->SetMaxEnergy(100*TeV); 00074 } 00075 00076 G4FTFPNeutronBuilder:: 00077 ~G4FTFPNeutronBuilder() 00078 { 00079 delete theStringDecay; 00080 delete theStringModel; 00081 delete thePreEquilib; 00082 delete theCascade; 00083 if ( theQuasiElastic ) delete theQuasiElastic; 00084 //delete theHandler; 00085 delete theLund; 00086 } 00087 00088 void G4FTFPNeutronBuilder:: 00089 Build(G4HadronElasticProcess * ) 00090 { 00091 } 00092 00093 void G4FTFPNeutronBuilder:: 00094 Build(G4HadronFissionProcess * ) 00095 { 00096 } 00097 00098 void G4FTFPNeutronBuilder:: 00099 Build(G4HadronCaptureProcess * ) 00100 { 00101 } 00102 00103 void G4FTFPNeutronBuilder:: 00104 Build(G4NeutronInelasticProcess * aP) 00105 { 00106 theModel->SetMinEnergy(theMin); 00107 theModel->SetMaxEnergy(theMax); 00108 aP->RegisterMe(theModel); 00109 aP->AddDataSet(new G4BGGNucleonInelasticXS(G4Neutron::Neutron())); 00110 00111 } 00112 00113 // 2002 by J.P. Wellisch