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 // 00027 // This software was developed by Lawrence Livermore National Laboratory. 00028 // 00029 // Redistribution and use in source and binary forms, with or without 00030 // modification, are permitted provided that the following conditions are met: 00031 // 00032 // 1. Redistributions of source code must retain the above copyright notice, 00033 // this list of conditions and the following disclaimer. 00034 // 2. Redistributions in binary form must reproduce the above copyright notice, 00035 // this list of conditions and the following disclaimer in the documentation 00036 // and/or other materials provided with the distribution. 00037 // 3. The name of the author may not be used to endorse or promote products 00038 // derived from this software without specific prior written permission. 00039 // 00040 // THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED 00041 // WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF 00042 // MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO 00043 // EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 00044 // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, 00045 // PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; 00046 // OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, 00047 // WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR 00048 // OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF 00049 // ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 00050 // 00051 // Copyright (c) 2006 The Regents of the University of California. 00052 // All rights reserved. 00053 // UCRL-CODE-224807 00054 // 00055 // 00056 // $Id: G4SmpSpNubarData.cc 69860 2013-05-16 14:39:02Z gcosmo $ 00057 // 00058 00059 #include "G4fissionEvent.hh" 00060 00061 #define nSPfissNubarIso 18 00062 00063 G4double G4fissionEvent::G4SmpSpNubarData(G4int isotope) { 00064 00065 /* 00066 Description 00067 Determine average number of neutrons from spontaneous fission for 00068 Th-232, 00069 U-232, U-233, U-234, U-235, U-236, U-238 00070 Np-237, 00071 Pu-239, Pu-240, Pu-241, Pu-242 00072 Am-241, 00073 Cm-242, Cm-244, 00074 Bk-249, 00075 Cf-252 00076 Based on Ensslin's data. 00077 N. Ensslin, et.al., "Application Guide to Neutron Multiplicity Counting," 00078 LA-13422-M (November 1998) 00079 */ 00080 00081 /* 00082 Input 00083 iso - isotope 00084 Output 00085 G4SmpSpNubarData - average number of neutrons 00086 -1. is the isotope has 00087 no nubar data 00088 */ 00089 00090 G4int i; 00091 00092 static G4int spzaid [nSPfissNubarIso] = { 00093 90232, 92232, 92233, 92234, 92235, 00094 92236, 92238, 93237, 94238, 94239, 00095 94240, 94241, 94242, 95241, 96242, 00096 96244, 97249, 98252 }; 00097 static G4double spnubar [nSPfissNubarIso] = { 00098 2.14, 1.71, 1.76, 1.81, 1.86, 00099 1.91, 2.01, 2.05, 2.21, 2.16, 00100 2.156, 2.25, 2.145, 3.22, 2.54, 00101 2.72, 3.40, 3.757 00102 }; 00103 00104 // Find nubar 00105 for (i=0; i<nSPfissNubarIso; i++) { 00106 if (isotope == spzaid[i]) { 00107 return spnubar[i]; 00108 } 00109 } 00110 // no nubar available for that isotope 00111 return -1.; 00112 }