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25 // 25 //
>> 26 // GEANT4 tag $Name: geant4-09-02 $
26 // 27 //
27 // ------------------------------------------- 28 // --------------------------------------------------------------------
28 // by J.P Wellisch, Sun Sep 15 2002. 29 // by J.P Wellisch, Sun Sep 15 2002.
29 30
30 #include "G4PiData.hh" 31 #include "G4PiData.hh"
31 #include "G4SystemOfUnits.hh" <<
32 32
33 ////////////////////////////////////////////// 33 ///////////////////////////////////////////////////////////////////////
34 34
35 G4PiData::G4PiData(const G4double * aT, const 35 G4PiData::G4PiData(const G4double * aT, const G4double * aIn,
36 const G4double * anE, G4int 36 const G4double * anE, G4int nP)
37 { 37 {
38 for(G4int i = 0; i < nP; ++i ) << 38 G4int i=0;
>> 39
>> 40 for( i = 0; i < nP; i++ )
39 { 41 {
40 std::pair<G4double, G4double> x; 42 std::pair<G4double, G4double> x;
41 x.first=aT[i]*millibarn; 43 x.first=aT[i]*millibarn;
42 x.second=aIn[i]*millibarn; 44 x.second=aIn[i]*millibarn;
43 std::pair<G4double, std::pair<G4double, G4 45 std::pair<G4double, std::pair<G4double, G4double > > aP;
44 aP.first=anE[i]*GeV; 46 aP.first=anE[i]*GeV;
45 aP.second=x; 47 aP.second=x;
46 push_back(aP); 48 push_back(aP);
47 if (i == 0) { <<
48 fMinE = aP.first; <<
49 fTot0 = x.first; <<
50 fInel0 = x.second; <<
51 } else if (i+1 == nP) { <<
52 fMaxE = aP.first; <<
53 fTot1 = x.first; <<
54 fInel1 = x.second; <<
55 } <<
56 } 49 }
57 } 50 }
58 51
>> 52 ////////////////////////////////////////////////////////////////////////
>> 53
>> 54 G4bool G4PiData::AppliesTo(G4double kineticEnergy)
>> 55 {
>> 56 G4bool result = true;
>> 57 if(kineticEnergy>back().first) result = false;
>> 58 return result;
>> 59 }
>> 60
59 ////////////////////////////////////////////// 61 //////////////////////////////////////////////////////////////////////////
60 62
61 G4double G4PiData::ReactionXSection(G4double k 63 G4double G4PiData::ReactionXSection(G4double kineticEnergy)
62 { 64 {
63 if (kineticEnergy <= fMinE) { return fInel0; << 65 G4double result = 0;
64 if (kineticEnergy >= fMaxE) { return fInel1; <<
65 <<
66 G4PiData::iterator it=begin(); 66 G4PiData::iterator it=begin();
67 while(it!=end()&&kineticEnergy>(*it).first) << 67 while(it!=end()&&kineticEnergy>(*it).first) {it++;}
68 if(it==end()) 68 if(it==end())
69 { 69 {
70 G4ExceptionDescription ed; << 70 G4Exception("G4PiData", "007", FatalException,
71 ed << "This cross section is applied for E << 71 "ReactionXSection used outside validity range");
72 << " outside allowed energy interval" < <<
73 G4Exception("G4PiData::ReactionXSection", <<
74 } 72 }
75 if(it==begin()) it++; 73 if(it==begin()) it++;
76 G4double x1,x2,e1,e2; 74 G4double x1,x2,e1,e2;
77 e1=(*(it-1)).first; 75 e1=(*(it-1)).first;
78 x1=(*(it-1)).second.second; 76 x1=(*(it-1)).second.second;
79 e2=(*(it)).first; 77 e2=(*(it)).first;
80 x2=(*(it)).second.second; 78 x2=(*(it)).second.second;
81 return std::max(0., x1 + (kineticEnergy-e1)* << 79 result = std::max(0., x1 + (kineticEnergy-e1)*(x2-x1)/(e2-e1));
>> 80 return result;
82 } 81 }
83 82
84 ////////////////////////////////////////////// 83 ////////////////////////////////////////////////////////////////////////////
85 84
86 G4double G4PiData::ElasticXSection(G4double ki 85 G4double G4PiData::ElasticXSection(G4double kineticEnergy)
87 { 86 {
88 if (kineticEnergy <= fMinE) { return fTot0 - << 87 G4double result = 0;
89 if (kineticEnergy >= fMaxE) { return fTot1 - <<
90 <<
91 G4PiData::iterator it=begin(); 88 G4PiData::iterator it=begin();
92 while(it!=end()&&kineticEnergy>(*it).first) << 89 while(it!=end()&&kineticEnergy>(*it).first) {it++;}
93 if(it==end()) 90 if(it==end())
94 { 91 {
95 G4ExceptionDescription ed; << 92 G4Exception("G4PiData", "007", FatalException,
96 ed << "This cross section is applied for E << 93 "ElasticXSection used outside validity range");
97 << " outside allowed energy interval" < <<
98 G4Exception("G4PiData::ElasticXSection", " <<
99 } 94 }
100 if(it==begin()) it++; 95 if(it==begin()) it++;
101 G4double x1,x2,e1,e2; 96 G4double x1,x2,e1,e2;
102 e1=(*(it-1)).first; 97 e1=(*(it-1)).first;
103 x1=(*(it-1)).second.first - (*(it-1)).second 98 x1=(*(it-1)).second.first - (*(it-1)).second.second;
104 e2=(*(it)).first; 99 e2=(*(it)).first;
105 x2=(*(it)).second.first - (*(it)).second.sec 100 x2=(*(it)).second.first - (*(it)).second.second;
106 return std::max(0., x1 + (kineticEnergy-e1)* << 101 result = std::max(0., x1 + (kineticEnergy-e1)*(x2-x1)/(e2-e1));
>> 102 return result;
107 } 103 }
108 104
109 ////////////////////////////////////////////// 105 ////////////////////////////////////////////////////////////////////////////
110 106
111 G4double G4PiData::TotalXSection(G4double kine 107 G4double G4PiData::TotalXSection(G4double kineticEnergy)
112 { 108 {
113 if (kineticEnergy <= fMinE) { return fTot0; << 109 G4double result = 0;
114 if (kineticEnergy >= fMaxE) { return fTot1; <<
115 <<
116 G4PiData::iterator it=begin(); 110 G4PiData::iterator it=begin();
117 while(it!=end()&&kineticEnergy>(*it).first) << 111 while(it!=end()&&kineticEnergy>(*it).first) {it++;}
118 if(it==end()) 112 if(it==end())
119 { 113 {
120 G4ExceptionDescription ed; << 114 G4Exception("G4PiData", "007", FatalException,
121 ed << "This cross section is applied for E << 115 "ElasticXSection used outside validity range");
122 << " outside allowed energy interval" < <<
123 G4Exception("G4PiData::TotalXSection", "ha <<
124 } 116 }
125 if(it==begin()) it++; 117 if(it==begin()) it++;
126 G4double x1,x2,e1,e2; 118 G4double x1,x2,e1,e2;
127 e1=(*(it-1)).first; 119 e1=(*(it-1)).first;
128 x1=(*(it-1)).second.first; 120 x1=(*(it-1)).second.first;
129 e2=(*(it)).first; 121 e2=(*(it)).first;
130 x2=(*(it)).second.first; 122 x2=(*(it)).second.first;
131 return std::max(0., x1 + (kineticEnergy-e1)* << 123 result = std::max(0., x1 + (kineticEnergy-e1)*(x2-x1)/(e2-e1));
>> 124 return result;
132 } 125 }
133 126