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53 // UCRL-CODE-224807 53 // UCRL-CODE-224807
54 // 54 //
55 // 55 //
>> 56 // $Id: G4SmpSpNubarData.cc 68799 2013-04-05 13:29:46Z gcosmo $
56 // 57 //
57 58
58 #include "G4fissionEvent.hh" 59 #include "G4fissionEvent.hh"
59 60
60 #define nSPfissNubarIso 18 61 #define nSPfissNubarIso 18
61 62
62 G4double G4fissionEvent::G4SmpSpNubarData(G4in 63 G4double G4fissionEvent::G4SmpSpNubarData(G4int isotope) {
63 64
64 /* 65 /*
65 Description 66 Description
66 Determine average number of neutrons from 67 Determine average number of neutrons from spontaneous fission for
67 Th-232, 68 Th-232,
68 U-232, U-233, U-234, U-235, U-236, U-2 69 U-232, U-233, U-234, U-235, U-236, U-238
69 Np-237, 70 Np-237,
70 Pu-239, Pu-240, Pu-241, Pu-242 71 Pu-239, Pu-240, Pu-241, Pu-242
71 Am-241, 72 Am-241,
72 Cm-242, Cm-244, 73 Cm-242, Cm-244,
73 Bk-249, 74 Bk-249,
74 Cf-252 75 Cf-252
75 Based on Ensslin's data. 76 Based on Ensslin's data.
76 N. Ensslin, et.al., "Application Guide to 77 N. Ensslin, et.al., "Application Guide to Neutron Multiplicity Counting,"
77 LA-13422-M (November 1998) 78 LA-13422-M (November 1998)
78 */ 79 */
79 80
80 /* 81 /*
81 Input 82 Input
82 iso - isotope 83 iso - isotope
83 Output 84 Output
84 G4SmpSpNubarData - average number of neutr 85 G4SmpSpNubarData - average number of neutrons
85 -1. is the isotope has 86 -1. is the isotope has
86 no nubar data 87 no nubar data
87 */ 88 */
88 89
89 G4int i; 90 G4int i;
90 91
91 static G4int spzaid [nSPfissNubarIso] = { 92 static G4int spzaid [nSPfissNubarIso] = {
92 90232, 92232, 92233, 92234, 92235, 93 90232, 92232, 92233, 92234, 92235,
93 92236, 92238, 93237, 94238, 94239, 94 92236, 92238, 93237, 94238, 94239,
94 94240, 94241, 94242, 95241, 96242, 95 94240, 94241, 94242, 95241, 96242,
95 96244, 97249, 98252 }; 96 96244, 97249, 98252 };
96 static G4double spnubar [nSPfissNubarIso] = 97 static G4double spnubar [nSPfissNubarIso] = {
97 2.14, 1.71, 1.76, 1.81, 1.86, 98 2.14, 1.71, 1.76, 1.81, 1.86,
98 1.91, 2.01, 2.05, 2.21, 2.16, 99 1.91, 2.01, 2.05, 2.21, 2.16,
99 2.156, 2.25, 2.145, 3.22, 2.54, 100 2.156, 2.25, 2.145, 3.22, 2.54,
100 2.72, 3.40, 3.757 101 2.72, 3.40, 3.757
101 }; 102 };
102 103
103 // Find nubar 104 // Find nubar
104 for (i=0; i<nSPfissNubarIso; i++) { 105 for (i=0; i<nSPfissNubarIso; i++) {
105 if (isotope == spzaid[i]) { 106 if (isotope == spzaid[i]) {
106 return spnubar[i]; 107 return spnubar[i];
107 } 108 }
108 } 109 }
109 // no nubar available for that isotope 110 // no nubar available for that isotope
110 return -1.; 111 return -1.;
111 } 112 }
112 113