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24 // ******************************************* 24 // ********************************************************************
25 // 25 //
26 // 26 //
27 // File: G4ElementSelector 27 // File: G4ElementSelector
28 // 28 //
29 // Author: V.Ivanchenko (Vladimir.Ivanc 29 // Author: V.Ivanchenko (Vladimir.Ivanchenko@cern.ch)
30 // 30 //
31 // Creation date: 2 April 2000 31 // Creation date: 2 April 2000
32 // 32 //
33 // Modifications: 33 // Modifications:
34 // 18/08/2000 V.Ivanchenko Update description 34 // 18/08/2000 V.Ivanchenko Update description
35 // 17/05/2006 V.Ivanchenko Cleanup 35 // 17/05/2006 V.Ivanchenko Cleanup
36 // 02/10/2007 V.Ivanchenko Fixed typo in comp 36 // 02/10/2007 V.Ivanchenko Fixed typo in computation of Lambda-factor
37 // proposed by Victor 37 // proposed by Victor Pec
38 // 38 //
39 //-------------------------------------------- 39 //---------------------------------------------------------------------
40 40
41 #include "G4ElementSelector.hh" 41 #include "G4ElementSelector.hh"
42 #include "Randomize.hh" 42 #include "Randomize.hh"
43 #include "G4Material.hh" 43 #include "G4Material.hh"
44 #include "G4Nucleus.hh" 44 #include "G4Nucleus.hh"
45 45
46 //....oooOO0OOooo........oooOO0OOooo........oo 46 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
47 47
48 G4ElementSelector::G4ElementSelector() 48 G4ElementSelector::G4ElementSelector()
49 {} 49 {}
50 50
51 //....oooOO0OOooo........oooOO0OOooo........oo 51 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
52 52
53 G4ElementSelector::~G4ElementSelector() 53 G4ElementSelector::~G4ElementSelector()
54 {} 54 {}
55 55
56 //....oooOO0OOooo........oooOO0OOooo........oo 56 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
57 57
58 const G4Element* 58 const G4Element*
59 G4ElementSelector::SelectZandA(const G4Track& 59 G4ElementSelector::SelectZandA(const G4Track& track, G4Nucleus* target)
60 { 60 {
61 // Fermi-Teller Z-low of mu- capture and exc 61 // Fermi-Teller Z-low of mu- capture and exceptions
62 // for halogens and oxigen. 62 // for halogens and oxigen.
63 // N.C.Mukhopadhyay Phys. Rep. 30 (1977) 1. 63 // N.C.Mukhopadhyay Phys. Rep. 30 (1977) 1.
64 64
65 std::size_t i = 0; 65 std::size_t i = 0;
66 const G4Material* mat = track.GetMaterial(); 66 const G4Material* mat = track.GetMaterial();
67 std::size_t numberOfElements = mat->GetNumbe 67 std::size_t numberOfElements = mat->GetNumberOfElements();
68 const G4ElementVector* theElementVector = ma 68 const G4ElementVector* theElementVector = mat->GetElementVector();
69 69
70 if(1 < numberOfElements) { 70 if(1 < numberOfElements) {
71 if(numberOfElements > prob.size()) { prob. 71 if(numberOfElements > prob.size()) { prob.resize(numberOfElements, 0.0); }
72 72
73 const G4double* theAtomNumDensity = mat->G 73 const G4double* theAtomNumDensity = mat->GetAtomicNumDensityVector();
74 74
75 G4double sum = 0.0; 75 G4double sum = 0.0;
76 for (i=0; i < numberOfElements; ++i) { 76 for (i=0; i < numberOfElements; ++i) {
77 77
78 G4int Z = (*theElementVector)[i]->GetZas 78 G4int Z = (*theElementVector)[i]->GetZasInt();
79 79
80 // Halogens 80 // Halogens
81 if( (9 == Z) || (17 == Z) || (35 == Z) | 81 if( (9 == Z) || (17 == Z) || (35 == Z) || (53 == Z) || (85 == Z) ) {
82 sum += 0.66 * Z * theAtomNumDensity[i]; 82 sum += 0.66 * Z * theAtomNumDensity[i];
83 83
84 // Oxigen 84 // Oxigen
85 } else if( 8 == Z ) { 85 } else if( 8 == Z ) {
86 sum += 0.56 * Z * theAtomNumDensity[i]; 86 sum += 0.56 * Z * theAtomNumDensity[i];
87 87
88 // Others 88 // Others
89 } else { 89 } else {
90 sum += Z * theAtomNumDensity[i]; 90 sum += Z * theAtomNumDensity[i];
91 } 91 }
92 prob[i] = sum; 92 prob[i] = sum;
93 } 93 }
94 94
95 sum *= G4UniformRand(); 95 sum *= G4UniformRand();
96 for (i=0; i < numberOfElements; ++i) { 96 for (i=0; i < numberOfElements; ++i) {
97 if(sum <= prob[i]) { break; } 97 if(sum <= prob[i]) { break; }
98 } 98 }
99 } 99 }
100 100
101 const G4Element* elm = (*theElementVector)[i 101 const G4Element* elm = (*theElementVector)[i];
102 G4int Z = elm->GetZasInt(); 102 G4int Z = elm->GetZasInt();
103 103
104 // select isotope 104 // select isotope
105 const G4IsotopeVector* isv = elm->GetIsotope 105 const G4IsotopeVector* isv = elm->GetIsotopeVector();
106 std::size_t ni = isv->size(); 106 std::size_t ni = isv->size();
107 i = 0; 107 i = 0;
108 108
109 if(1 < ni) { 109 if(1 < ni) {
110 110
111 const G4double* ab = elm->GetRelativeAbund 111 const G4double* ab = elm->GetRelativeAbundanceVector();
112 G4double y = G4UniformRand(); 112 G4double y = G4UniformRand();
113 for(i=0; i<ni; ++i) { 113 for(i=0; i<ni; ++i) {
114 y -= ab[i]; 114 y -= ab[i];
115 if(y <= 0.0) { break; } 115 if(y <= 0.0) { break; }
116 } 116 }
117 } 117 }
118 118
119 G4int A = elm->GetIsotope((G4int)i)->GetN(); 119 G4int A = elm->GetIsotope((G4int)i)->GetN();
120 target->SetParameters(A, Z); 120 target->SetParameters(A, Z);
121 121
122 return elm; 122 return elm;
123 } 123 }
124 124