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: G4H2O.cc 64057 2012-10-30 15:04:49Z gcosmo $ 00027 // 00028 // Author: Mathieu Karamitors 00029 // 00030 // History: 00031 // ----------- 00032 // 10 Oct 2011 M.Karamitros created 00033 // 00034 // ------------------------------------------------------------------- 00035 00036 #include "G4H2O.hh" 00037 #include "G4PhysicalConstants.hh" 00038 #include "G4SystemOfUnits.hh" 00039 #include "G4ParticleTable.hh" 00040 00041 // ###################################################################### 00042 // ### Hydrogen ### 00043 // ###################################################################### 00044 G4H2O* G4H2O::theInstance = 0; 00045 00046 G4H2O* G4H2O::Definition() 00047 { 00048 if (theInstance !=0) return theInstance; 00049 const G4String name = "H_{2}O"; 00050 // search in particle table] 00051 G4ParticleTable* pTable = G4ParticleTable::GetParticleTable(); 00052 G4ParticleDefinition* anInstance = pTable->FindParticle(name); 00053 if (anInstance ==0) 00054 { 00055 // create molecule 00056 // 00057 // G4MoleculeDefinition(G4String name, 00058 // G4double mass, 00059 // G4int electronsNumber, 00060 // G4int electronicLevels, 00061 // G4double diffCoeff, 00062 // G4int atomsNumber = -1, 00063 // G4double radius = -1, 00064 // G4double lifetime = -1, 00065 // G4String aType = "", 00066 // G4MoleculeID ID = G4MoleculeID::Create() 00067 // ); 00068 00069 G4double mass = 18.0153*g/Avogadro * c_squared; 00070 anInstance = new G4MoleculeDefinition(name, mass, 10, 8, 00071 2e-5*(cm*cm/s), 00072 3, 2.75 * angstrom, picosecond); 00073 00074 ((G4MoleculeDefinition*) anInstance) ->SetLevelOccupation(0); 00075 ((G4MoleculeDefinition*) anInstance) ->SetLevelOccupation(1); 00076 ((G4MoleculeDefinition*) anInstance) ->SetLevelOccupation(2); 00077 ((G4MoleculeDefinition*) anInstance) ->SetLevelOccupation(3); 00078 ((G4MoleculeDefinition*) anInstance) ->SetLevelOccupation(4); 00079 00080 } 00081 theInstance = reinterpret_cast<G4H2O*>(anInstance); 00082 return theInstance; 00083 } 00084