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25 // 25 //
26 // G4NucleiProperties class implementation <<
27 // 26 //
28 // Author: V.Lara, October 1998 << 27 // $Id: G4NucleiProperties.cc 69015 2013-04-15 09:46:48Z gcosmo $
29 // History: << 28 //
30 // - 17.11.1998, H.Kurashige - Migrated into p << 29 //
31 // - 31.03.2009, T.Koi - Migrated to AME03 << 30 // ------------------------------------------------------------
32 // ------------------------------------------- << 31 // GEANT 4 class header file
>> 32 //
>> 33 // ------------------------------------------------------------
>> 34 //
>> 35 // Hadronic Process: Nuclear De-excitations
>> 36 // by V. Lara (Oct 1998)
>> 37 // Migrate into particles category by H.Kurashige (17 Nov. 98)
>> 38 // Added Shell-Pairing corrections to the Cameron mass
>> 39 // excess formula by V.Lara (9 May 99)
>> 40 // 090331 Migrate to AME03 by Koi, Tatsumi
33 41
34 #include "G4NucleiProperties.hh" 42 #include "G4NucleiProperties.hh"
35 <<
36 #include "G4NucleiPropertiesTableAME12.hh" <<
37 #include "G4NucleiPropertiesTheoreticalTable.h <<
38 #include "G4ParticleTable.hh" <<
39 #include "G4PhysicalConstants.hh" 43 #include "G4PhysicalConstants.hh"
40 #include "G4SystemOfUnits.hh" 44 #include "G4SystemOfUnits.hh"
41 45
42 G4ThreadLocal G4double G4NucleiProperties::mas 46 G4ThreadLocal G4double G4NucleiProperties::mass_proton = -1.;
43 G4ThreadLocal G4double G4NucleiProperties::mas 47 G4ThreadLocal G4double G4NucleiProperties::mass_neutron = -1.;
44 G4ThreadLocal G4double G4NucleiProperties::mas 48 G4ThreadLocal G4double G4NucleiProperties::mass_deuteron = -1.;
45 G4ThreadLocal G4double G4NucleiProperties::mas 49 G4ThreadLocal G4double G4NucleiProperties::mass_triton = -1.;
46 G4ThreadLocal G4double G4NucleiProperties::mas 50 G4ThreadLocal G4double G4NucleiProperties::mass_alpha = -1.;
47 G4ThreadLocal G4double G4NucleiProperties::mas 51 G4ThreadLocal G4double G4NucleiProperties::mass_He3 = -1.;
48 52
49 G4double G4NucleiProperties::GetNuclearMass(co 53 G4double G4NucleiProperties::GetNuclearMass(const G4double A, const G4double Z)
50 { 54 {
51 G4double mass = 0.0; << 55 G4double mass=0.0;
52 56
53 if (std::fabs(A - G4int(A)) > 1.e-10) { 57 if (std::fabs(A - G4int(A)) > 1.e-10) {
54 mass = NuclearMass(A, Z); << 58 mass = NuclearMass(A,Z);
55 } << 59
56 else { << 60 } else {
57 // use mass table 61 // use mass table
58 auto iZ = G4int(Z); << 62 G4int iZ = G4int(Z);
59 auto iA = G4int(A); << 63 G4int iA = G4int(A);
60 mass = GetNuclearMass(iA, iZ); << 64 mass =GetNuclearMass(iA,iZ);
61 } 65 }
62 return mass; << 66
>> 67 return mass;
63 } 68 }
64 69
>> 70
65 G4double G4NucleiProperties::GetNuclearMass(co 71 G4double G4NucleiProperties::GetNuclearMass(const G4int A, const G4int Z)
66 { 72 {
67 if (mass_proton <= 0.0) { << 73 if (mass_proton <= 0.0 ) {
68 const G4ParticleDefinition* nucleus = null << 74 const G4ParticleDefinition * nucleus = 0;
69 nucleus = G4ParticleTable::GetParticleTabl << 75 nucleus = G4ParticleTable::GetParticleTable()->FindParticle("proton"); // proton
70 if (nucleus != nullptr) mass_neutron = nuc << 76 if (nucleus!=0) mass_proton = nucleus->GetPDGMass();
>> 77 nucleus = G4ParticleTable::GetParticleTable()->FindParticle("neutron"); // neutron
>> 78 if (nucleus!=0) mass_neutron = nucleus->GetPDGMass();
>> 79 nucleus = G4ParticleTable::GetParticleTable()->FindParticle("deuteron"); // deuteron
>> 80 if (nucleus!=0) mass_deuteron = nucleus->GetPDGMass();
>> 81 nucleus = G4ParticleTable::GetParticleTable()->FindParticle("triton"); // triton
>> 82 if (nucleus!=0) mass_triton = nucleus->GetPDGMass();
>> 83 nucleus = G4ParticleTable::GetParticleTable()->FindParticle("alpha"); // alpha
>> 84 if (nucleus!=0) mass_alpha = nucleus->GetPDGMass();
>> 85 nucleus = G4ParticleTable::GetParticleTable()->FindParticle("He3"); // He3
>> 86 if (nucleus!=0) mass_He3 = nucleus->GetPDGMass();
71 87
72 nucleus = G4ParticleTable::GetParticleTabl <<
73 if (nucleus != nullptr) mass_deuteron = nu <<
74 <<
75 nucleus = G4ParticleTable::GetParticleTabl <<
76 if (nucleus != nullptr) mass_triton = nucl <<
77 <<
78 nucleus = G4ParticleTable::GetParticleTabl <<
79 if (nucleus != nullptr) mass_alpha = nucle <<
80 <<
81 nucleus = G4ParticleTable::GetParticleTabl <<
82 if (nucleus != nullptr) mass_He3 = nucleus <<
83 <<
84 nucleus = G4ParticleTable::GetParticleTabl <<
85 if (nucleus != nullptr) mass_proton = nucl <<
86 } 88 }
87 89
88 if (A < 1 || Z < 0 || Z > A) { 90 if (A < 1 || Z < 0 || Z > A) {
89 #ifdef G4VERBOSE 91 #ifdef G4VERBOSE
90 if (G4ParticleTable::GetParticleTable()->G << 92 if (G4ParticleTable::GetParticleTable()->GetVerboseLevel()>0) {
91 G4cout << "G4NucleiProperties::GetNuclea << 93 G4cout << "G4NucleiProperties::GetNuclearMass: Wrong values for A = " << A
92 << G4endl; << 94 << " and Z = " << Z << G4endl;
93 } 95 }
94 #endif << 96 #endif
95 return 0.0; 97 return 0.0;
96 } 98 }
97 << 99
98 G4double mass = -1.; << 100 G4double mass= -1.;
99 if ((Z <= 2)) { << 101 if ( (Z<=2) ) {
100 // light nuclei 102 // light nuclei
101 if ((Z == 1) && (A == 1)) { << 103 if ( (Z==1)&&(A==1) ) {
102 mass = mass_proton; 104 mass = mass_proton;
103 } << 105 } else if ( (Z==0)&&(A==1) ) {
104 else if ((Z == 0) && (A == 1)) { <<
105 mass = mass_neutron; 106 mass = mass_neutron;
106 } << 107 } else if ( (Z==1)&&(A==2) ) {
107 else if ((Z == 1) && (A == 2)) { <<
108 mass = mass_deuteron; 108 mass = mass_deuteron;
109 } << 109 } else if ( (Z==1)&&(A==3) ) {
110 else if ((Z == 1) && (A == 3)) { <<
111 mass = mass_triton; 110 mass = mass_triton;
112 } << 111 } else if ( (Z==2)&&(A==4) ) {
113 else if ((Z == 2) && (A == 4)) { <<
114 mass = mass_alpha; 112 mass = mass_alpha;
115 } << 113 } else if ( (Z==2)&&(A==3) ) {
116 else if ((Z == 2) && (A == 3)) { <<
117 mass = mass_He3; 114 mass = mass_He3;
118 } 115 }
119 } 116 }
120 << 117
121 if (mass < 0.) { 118 if (mass < 0.) {
122 if (G4NucleiPropertiesTableAME12::IsInTabl << 119 if (G4NucleiPropertiesTableAME03::IsInTable(Z,A)) {
123 // AME table << 120 // AME 03 table
124 mass = G4NucleiPropertiesTableAME12::Get << 121 mass = G4NucleiPropertiesTableAME03::GetNuclearMass(Z,A);
125 } << 122 } else if (G4NucleiPropertiesTheoreticalTable::IsInTable(Z,A)){
126 else if (G4NucleiPropertiesTheoreticalTabl <<
127 // Theoretical table 123 // Theoretical table
128 mass = G4NucleiPropertiesTheoreticalTabl << 124 mass = G4NucleiPropertiesTheoreticalTable::GetNuclearMass(Z,A);
129 } << 125 } else {
130 else if (Z == A) { << 126 mass = NuclearMass(G4double(A),G4double(Z));
131 mass = A * mass_proton; <<
132 } <<
133 else if (0 == Z) { <<
134 mass = A * mass_neutron; <<
135 } <<
136 else { <<
137 mass = NuclearMass(G4double(A), G4double <<
138 } 127 }
139 } 128 }
140 129
141 if (mass < 0.) mass = 0.0; 130 if (mass < 0.) mass = 0.0;
142 return mass; 131 return mass;
143 } 132 }
144 133
145 G4bool G4NucleiProperties::IsInStableTable(con 134 G4bool G4NucleiProperties::IsInStableTable(const G4double A, const G4double Z)
146 { 135 {
147 auto iA = G4int(A); << 136 G4int iA = G4int(A);
148 auto iZ = G4int(Z); << 137 G4int iZ = G4int(Z);
149 return IsInStableTable(iA, iZ); 138 return IsInStableTable(iA, iZ);
150 } 139 }
151 140
152 G4bool G4NucleiProperties::IsInStableTable(con << 141 G4bool G4NucleiProperties::IsInStableTable(const G4int A, const int Z)
153 { 142 {
154 if (A < 1 || Z < 0 || Z > A) { 143 if (A < 1 || Z < 0 || Z > A) {
155 #ifdef G4VERBOSE 144 #ifdef G4VERBOSE
156 if (G4ParticleTable::GetParticleTable()->G << 145 if (G4ParticleTable::GetParticleTable()->GetVerboseLevel()>0) {
157 G4cout << "G4NucleiProperties::IsInStabl << 146 G4cout << "G4NucleiProperties::IsInStableTable: Wrong values for A = "
158 << " and Z = " << Z << G4endl; << 147 << A << " and Z = " << Z << G4endl;
159 } 148 }
160 #endif << 149 #endif
161 return false; 150 return false;
162 } << 151 }
>> 152
>> 153 return G4NucleiPropertiesTableAME03::IsInTable(Z,A);
163 154
164 return G4NucleiPropertiesTableAME12::IsInTab <<
165 } 155 }
166 156
167 G4double G4NucleiProperties::GetMassExcess(con 157 G4double G4NucleiProperties::GetMassExcess(const G4double A, const G4double Z)
168 { 158 {
169 auto iA = G4int(A); << 159 G4int iA = G4int(A);
170 auto iZ = G4int(Z); << 160 G4int iZ = G4int(Z);
171 return GetMassExcess(iA, iZ); << 161 return GetMassExcess(iA,iZ);
172 } 162 }
173 163
174 G4double G4NucleiProperties::GetMassExcess(con 164 G4double G4NucleiProperties::GetMassExcess(const G4int A, const G4int Z)
175 { 165 {
176 if (A < 1 || Z < 0 || Z > A) { 166 if (A < 1 || Z < 0 || Z > A) {
177 #ifdef G4VERBOSE 167 #ifdef G4VERBOSE
178 if (G4ParticleTable::GetParticleTable()->G << 168 if (G4ParticleTable::GetParticleTable()->GetVerboseLevel()>0) {
179 G4cout << "G4NucleiProperties::GetMassEx << 169 G4cout << "G4NucleiProperties::GetMassExccess: Wrong values for A = "
180 << G4endl; << 170 << A << " and Z = " << Z << G4endl;
181 } 171 }
182 #endif << 172 #endif
183 return 0.0; 173 return 0.0;
184 } << 174
>> 175 } else {
185 176
186 if (G4NucleiPropertiesTableAME12::IsInTable( << 177 if (G4NucleiPropertiesTableAME03::IsInTable(Z,A)){
187 // AME table << 178 return G4NucleiPropertiesTableAME03::GetMassExcess(Z,A);
188 return G4NucleiPropertiesTableAME12::GetMa << 179 } else if (G4NucleiPropertiesTheoreticalTable::IsInTable(Z,A)){
189 } << 180 return G4NucleiPropertiesTheoreticalTable::GetMassExcess(Z,A);
190 if (G4NucleiPropertiesTheoreticalTable::IsIn << 181 } else {
191 return G4NucleiPropertiesTheoreticalTable: << 182 return MassExcess(A,Z);
>> 183 }
192 } 184 }
193 return MassExcess(A, Z); << 185
194 } 186 }
195 187
>> 188
196 G4double G4NucleiProperties::GetAtomicMass(con 189 G4double G4NucleiProperties::GetAtomicMass(const G4double A, const G4double Z)
197 { 190 {
198 if (A < 1 || Z < 0 || Z > A) { 191 if (A < 1 || Z < 0 || Z > A) {
199 #ifdef G4VERBOSE 192 #ifdef G4VERBOSE
200 if (G4ParticleTable::GetParticleTable()->G << 193 if (G4ParticleTable::GetParticleTable()->GetVerboseLevel()>0) {
201 G4cout << "G4NucleiProperties::GetAtomic << 194 G4cout << "G4NucleiProperties::GetAtomicMass: Wrong values for A = "
202 << G4endl; << 195 << A << " and Z = " << Z << G4endl;
203 } 196 }
204 #endif << 197 #endif
205 return 0.0; 198 return 0.0;
206 } <<
207 if (std::fabs(A - G4int(A)) > 1.e-10) { <<
208 return AtomicMass(A, Z); <<
209 } <<
210 199
211 auto iA = G4int(A); << 200 } else if (std::fabs(A - G4int(A)) > 1.e-10) {
212 auto iZ = G4int(Z); << 201 return AtomicMass(A,Z);
213 if (G4NucleiPropertiesTableAME12::IsInTable( << 202
214 return G4NucleiPropertiesTableAME12::GetAt << 203 } else {
215 } << 204 G4int iA = G4int(A);
216 if (G4NucleiPropertiesTheoreticalTable::IsIn << 205 G4int iZ = G4int(Z);
217 return G4NucleiPropertiesTheoreticalTable: << 206 if (G4NucleiPropertiesTableAME03::IsInTable(iZ,iA)) {
>> 207 return G4NucleiPropertiesTableAME03::GetAtomicMass(iZ,iA);
>> 208 } else if (G4NucleiPropertiesTheoreticalTable::IsInTable(iZ,iA)){
>> 209 return G4NucleiPropertiesTheoreticalTable::GetAtomicMass(iZ,iA);
>> 210 } else {
>> 211 return AtomicMass(A,Z);
>> 212 }
218 } 213 }
219 return AtomicMass(A, Z); <<
220 } 214 }
221 215
222 G4double G4NucleiProperties::GetBindingEnergy( 216 G4double G4NucleiProperties::GetBindingEnergy(const G4double A, const G4double Z)
223 { 217 {
224 auto iA = G4int(A); << 218 G4int iA = G4int(A);
225 auto iZ = G4int(Z); << 219 G4int iZ = G4int(Z);
226 return GetBindingEnergy(iA, iZ); << 220 return GetBindingEnergy(iA,iZ);
227 } 221 }
228 222
229 G4double G4NucleiProperties::GetBindingEnergy( 223 G4double G4NucleiProperties::GetBindingEnergy(const G4int A, const G4int Z)
230 { 224 {
231 if (A < 1 || Z < 0 || Z > A) { 225 if (A < 1 || Z < 0 || Z > A) {
232 #ifdef G4VERBOSE 226 #ifdef G4VERBOSE
233 if (G4ParticleTable::GetParticleTable()->G << 227 if (G4ParticleTable::GetParticleTable()->GetVerboseLevel()>0) {
234 G4cout << "G4NucleiProperties::GetMassEx << 228 G4cout << "G4NucleiProperties::GetMassExccess: Wrong values for A = "
235 << G4endl; << 229 << A << " and Z = " << Z << G4endl;
236 } 230 }
237 #endif 231 #endif
238 return 0.0; 232 return 0.0;
239 } <<
240 233
241 if (G4NucleiPropertiesTableAME12::IsInTable( << 234 } else {
242 return G4NucleiPropertiesTableAME12::GetBi << 235 if (G4NucleiPropertiesTableAME03::IsInTable(Z,A)) {
243 } << 236 return G4NucleiPropertiesTableAME03::GetBindingEnergy(Z,A);
244 if (G4NucleiPropertiesTheoreticalTable::IsIn << 237 } else if (G4NucleiPropertiesTheoreticalTable::IsInTable(Z,A)) {
245 return G4NucleiPropertiesTheoreticalTable: << 238 return G4NucleiPropertiesTheoreticalTable::GetBindingEnergy(Z,A);
>> 239 }else {
>> 240 return BindingEnergy(A,Z);
>> 241 }
>> 242
246 } 243 }
247 return BindingEnergy(A, Z); <<
248 } 244 }
249 245
250 G4double G4NucleiProperties::MassExcess(G4doub << 246
>> 247 G4double G4NucleiProperties::MassExcess(G4double A, G4double Z)
251 { 248 {
252 return GetAtomicMass(A, Z) - A * amu_c2; << 249 return GetAtomicMass(A,Z) - A*amu_c2;
253 } 250 }
254 251
255 G4double G4NucleiProperties::AtomicMass(G4doub << 252 G4double G4NucleiProperties::AtomicMass(G4double A, G4double Z)
256 { 253 {
257 G4double hydrogen_mass_excess; << 254 const G4double hydrogen_mass_excess = G4NucleiPropertiesTableAME03::GetMassExcess(1,1);
258 G4double neutron_mass_excess; << 255 const G4double neutron_mass_excess = G4NucleiPropertiesTableAME03::GetMassExcess(0,1);
259 hydrogen_mass_excess = G4NucleiPropertiesTab << 256
260 neutron_mass_excess = G4NucleiPropertiesTabl <<
261 G4double mass = 257 G4double mass =
262 (A - Z) * neutron_mass_excess + Z * hydrog << 258 (A-Z)*neutron_mass_excess + Z*hydrogen_mass_excess - BindingEnergy(A,Z) + A*amu_c2;
>> 259
263 return mass; 260 return mass;
264 } 261 }
265 262
266 G4double G4NucleiProperties::NuclearMass(G4dou << 263 G4double G4NucleiProperties::NuclearMass(G4double A, G4double Z)
267 { 264 {
268 if (A < 1 || Z < 0 || Z > A) { 265 if (A < 1 || Z < 0 || Z > A) {
269 #ifdef G4VERBOSE 266 #ifdef G4VERBOSE
270 if (G4ParticleTable::GetParticleTable()->G << 267 if (G4ParticleTable::GetParticleTable()->GetVerboseLevel()>0) {
271 G4cout << "G4NucleiProperties::NuclearMa << 268 G4cout << "G4NucleiProperties::NuclearMass: Wrong values for A = "
272 << G4endl; << 269 << A << " and Z = " << Z << G4endl;
273 } 270 }
274 #endif << 271 #endif
275 return 0.0; 272 return 0.0;
276 } 273 }
277 274
278 G4double mass = AtomicMass(A, Z); << 275 G4double mass = AtomicMass(A,Z);
279 << 276 // atomic mass is converted to nuclear mass according formula in AME03
280 // atomic mass is converted to nuclear mass << 277 mass -= Z*electron_mass_c2;
281 // formula in AME03 and 12 << 278 mass += ( 14.4381*std::pow ( Z , 2.39 ) + 1.55468*1e-6*std::pow ( Z , 5.35 ) )*eV;
282 // <<
283 mass -= Z * electron_mass_c2; <<
284 mass += (14.4381 * std::pow(Z, 2.39) + 1.554 <<
285 279
286 return mass; 280 return mass;
287 } 281 }
288 282
289 G4double G4NucleiProperties::BindingEnergy(G4d << 283 G4double G4NucleiProperties::BindingEnergy(G4double A, G4double Z)
290 { << 284 {
291 // 285 //
292 // Weitzsaecker's Mass formula 286 // Weitzsaecker's Mass formula
293 // 287 //
294 G4int Npairing = G4int(A - Z) % 2; // pairi << 288 G4int Npairing = G4int(A-Z)%2; // pairing
295 G4int Zpairing = G4int(Z) % 2; << 289 G4int Zpairing = G4int(Z)%2;
296 G4double binding = -15.67 * A // nuclear vo << 290 G4double binding =
297 + 17.23 * std::pow(A, 2. << 291 - 15.67*A // nuclear volume
298 + 93.15 * ((A / 2. - Z) * << 292 + 17.23*std::pow(A,2./3.) // surface energy
299 + 0.6984523 * Z * Z * std << 293 + 93.15*((A/2.-Z)*(A/2.-Z))/A // asymmetry
300 if (Npairing == Zpairing) { << 294 + 0.6984523*Z*Z*std::pow(A,-1./3.); // coulomb
301 binding += (Npairing + Zpairing - 1) * 12. << 295 if( Npairing == Zpairing ) binding += (Npairing+Zpairing-1) * 12.0 / std::sqrt(A); // pairing
302 } <<
303 296
304 return -binding * MeV; << 297 return -binding*MeV;
305 } 298 }
>> 299
306 300