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28 //
29 // GEANT4 Class file
30 //
31 //
32 // File name: G4ComponentSAIDTotalXS
33 //
34 // Authors: G.Folger, V.Ivanchenko, D.Wright
35 //
36 // Modifications:
37 //
38
39 #include "G4ComponentSAIDTotalXS.hh"
40 #include "G4PhysicsVector.hh"
41 #include "G4PhysicsFreeVector.hh"
42
43 const G4String G4ComponentSAIDTotalXS::fnames[13] = {
44 "","pp","np","pip","pim",
45 "pin","pie",
46 "gp_pi0p","gp_pi+n","gn_pi-p","gn_pi0n","gp_etap","gp_etapp"
47 };
48
49 #ifdef G4MULTITHREADED
50 G4Mutex G4ComponentSAIDTotalXS::saidXSMutex = G4MUTEX_INITIALIZER;
51 #endif
52
53 G4ComponentSAIDTotalXS::G4ComponentSAIDTotalXS()
54 : G4VComponentCrossSection("xsSAID")
55 {
56 for(G4int i=0; i<numberOfSaidXS; ++i) {
57 elastdata[i] = nullptr;
58 inelastdata[i] = nullptr;
59 }
60 }
61
62 G4ComponentSAIDTotalXS::~G4ComponentSAIDTotalXS()
63 {
64 for(G4int i=0; i<numberOfSaidXS; ++i) {
65 if(elastdata[i]) {
66 delete elastdata[i];
67 elastdata[i] = nullptr;
68 }
69 if(inelastdata[i]) {
70 delete inelastdata[i];
71 inelastdata[i] = nullptr;
72 }
73 }
74 }
75
76 G4double
77 G4ComponentSAIDTotalXS::GetTotalElementCrossSection(
78 const G4ParticleDefinition* part,
79 G4double, G4int Z, G4double N)
80 {
81 PrintWarning(part,0,Z,G4lrint(N),
82 "G4ComponentSAIDTotalXS::GetTotalElementCrossSection",
83 "Method is not implemented");
84 return 0.0;
85 }
86
87 G4double
88 G4ComponentSAIDTotalXS::GetTotalIsotopeCrossSection(
89 const G4ParticleDefinition* part,
90 G4double kinEnergy, G4int Z, G4int N)
91 {
92 return GetInelasticIsotopeCrossSection(part,kinEnergy,Z,N)
93 + GetElasticIsotopeCrossSection(part,kinEnergy,Z,N);
94 }
95
96 G4double
97 G4ComponentSAIDTotalXS::GetInelasticElementCrossSection(
98 const G4ParticleDefinition* part,
99 G4double, G4int Z, G4double N)
100 {
101 PrintWarning(part,0,Z,G4lrint(N),
102 "G4ComponentSAIDTotalXS::GetTotalElementCrossSection",
103 "Method is not implemented");
104 return 0.0;
105 }
106
107 G4double
108 G4ComponentSAIDTotalXS::GetInelasticIsotopeCrossSection(
109 const G4ParticleDefinition* part,
110 G4double kinEnergy, G4int Z, G4int N)
111 {
112 G4double cross = 0.0;
113 G4SAIDCrossSectionType tp = GetType(part,0,Z,N);
114 if(saidUnknown != tp) {
115 G4int idx = G4int(tp);
116 if(!inelastdata[idx]) { Initialise(tp); }
117 if(inelastdata[idx]) {
118 cross = (inelastdata[idx])->Value(kinEnergy);
119 }
120 }
121 return cross;
122 }
123
124 G4double
125 G4ComponentSAIDTotalXS::GetElasticElementCrossSection(
126 const G4ParticleDefinition* part,
127 G4double, G4int Z, G4double N)
128 {
129 PrintWarning(part,0,Z,G4lrint(N),
130 "G4ComponentSAIDTotalXS::GetTotalElementCrossSection",
131 "Method is not implemented");
132 return 0.0;
133 }
134
135 G4double
136 G4ComponentSAIDTotalXS::GetElasticIsotopeCrossSection(
137 const G4ParticleDefinition* part,
138 G4double kinEnergy, G4int Z, G4int N)
139 {
140 G4double cross = 0.0;
141 G4SAIDCrossSectionType tp = GetType(part,0,Z,N);
142 if(saidUnknown != tp) {
143 G4int idx = G4int(tp);
144 if(!elastdata[idx]) { Initialise(tp); }
145 if(elastdata[idx]) {
146 cross = (elastdata[idx])->Value(kinEnergy);
147 }
148 }
149 return cross;
150 }
151
152 G4double
153 G4ComponentSAIDTotalXS::GetChargeExchangeCrossSection(
154 const G4ParticleDefinition* prim,
155 const G4ParticleDefinition* sec,
156 G4double kinEnergy, G4int Z, G4int N)
157 {
158 G4double cross = 0.0;
159 G4SAIDCrossSectionType tp = GetType(prim,sec,Z,N);
160 if(saidUnknown != tp) {
161 G4int idx = G4int(tp);
162 if(!inelastdata[idx]) { Initialise(tp); }
163 if(inelastdata[idx]) {
164 cross = (inelastdata[idx])->Value(kinEnergy);
165 }
166 }
167 return cross;
168 }
169
170 void G4ComponentSAIDTotalXS::Description(std::ostream&) const
171 {
172 }
173
174 G4SAIDCrossSectionType
175 G4ComponentSAIDTotalXS::GetType(const G4ParticleDefinition* prim,
176 const G4ParticleDefinition* sec,
177 G4int Z, G4int N)
178 {
179 G4SAIDCrossSectionType type = saidUnknown;
180 if(1 == N && prim) {
181 G4int code = prim->GetPDGEncoding();
182
183 // only gamma + N x-sections available
184 if(0 == Z && sec && 22 == code) {
185 G4int code1 = sec->GetPDGEncoding();
186 if(-211 == code1) { type = saidGN_PINP; }
187 else if(111 == code1) { type = saidGN_PI0N; }
188
189 // x-sections off proton
190 } else if(1 == Z) {
191 if(sec) {
192 G4int code1 = sec->GetPDGEncoding();
193 if(-211 == code) {
194 if(111 == code1) { type = saidPINP_PI0N; }
195 else if(221 == code1) { type = saidPINP_ETAN; }
196
197 } else if(22 == code) {
198 if(111 == code1) { type = saidGP_PI0P; }
199 else if(211 == code1) { type = saidGP_PIPN; }
200 else if(221 == code1) { type = saidGP_ETAP; }
201 else if(331 == code1) { type = saidGP_ETAPP; }
202 }
203 } else {
204 if(2212 == code) { type = saidPP; }
205 else if(2112 == code) { type = saidNP; }
206 else if(211 == code) { type = saidPIPP; }
207 else if(-211 == code) { type = saidPINP; }
208 }
209 }
210 }
211 //G4cout << "G4ComponentSAIDTotalXS::Type= " << type << G4endl;
212 return type;
213 }
214
215 void G4ComponentSAIDTotalXS::Initialise(G4SAIDCrossSectionType tp)
216 {
217 G4int idx = G4int(tp);
218 #ifdef G4MULTITHREADED
219 G4MUTEXLOCK(&saidXSMutex);
220 if(!inelastdata[idx]) {
221 #endif
222 // check environment variable
223 // Build the complete string identifying the file with the data set
224 const char* path = G4FindDataDir("G4SAIDXSDATA");
225 if (!path){
226 G4Exception("G4ComponentSAIDTotalXS::Initialise(..)","had013",
227 FatalException,
228 "Environment variable G4SAIDXSDATA is not defined");
229 return;
230 }
231 if(idx <= 4) {
232 elastdata[idx] = new G4PhysicsFreeVector(true);
233 inelastdata[idx] = new G4PhysicsFreeVector(true);
234 ReadData(idx,elastdata[idx],path,"_el.dat");
235 ReadData(idx,inelastdata[idx],path,"_in.dat");
236 } else {
237 inelastdata[idx] = new G4PhysicsFreeVector();
238 ReadData(idx,inelastdata[idx],path,".dat");
239 }
240 #ifdef G4MULTITHREADED
241 }
242 G4MUTEXUNLOCK(&saidXSMutex);
243 #endif
244 }
245
246 void G4ComponentSAIDTotalXS::ReadData(G4int index,
247 G4PhysicsVector* v,
248 const G4String& ss1,
249 const G4String& ss2)
250 {
251 std::ostringstream ost;
252 ost << ss1 << "/" << fnames[index] << ss2;
253 std::ifstream filein(ost.str().c_str());
254 if (!(filein)) {
255 G4ExceptionDescription ed;
256 ed << "Data file <" << ost.str().c_str()
257 << "> is not opened!";
258 G4Exception("G4ComponentSAIDTotalXS::ReadData(..)","had014",
259 FatalException, ed, "Check G4SAIDXSDATA");
260 } else {
261 if(GetVerboseLevel() > 1) {
262 G4cout << "File " << ost.str()
263 << " is opened by G4ComponentSAIDTotalXS" << G4endl;
264 }
265 // retrieve data from DB
266 v->Retrieve(filein, true);
267 v->ScaleVector(CLHEP::MeV,CLHEP::millibarn);
268 v->FillSecondDerivatives();
269 }
270 }
271
272 void
273 G4ComponentSAIDTotalXS::PrintWarning(const G4ParticleDefinition* prim,
274 const G4ParticleDefinition* sec,
275 G4int Z, G4int N,
276 const G4String& ss1,
277 const G4String& ss2)
278 {
279 G4cout << ss1 << ": " << ss2 << G4endl;
280 G4cout << "For Z= " << Z << " N= " << N << " of ";
281 if(prim) { G4cout << prim->GetParticleName() << " "; }
282 if(sec) { G4cout << " x-section to " << sec->GetParticleName(); }
283 G4cout << G4endl;
284 }
285