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25 // 25 //
26 // G4SPSEneDistribution class implementation << 26 ///////////////////////////////////////////////////////////////////////////////
>> 27 //
>> 28 // MODULE: G4SPSEneDistribution.cc
>> 29 //
>> 30 // Version: 1.0
>> 31 // Date: 5/02/04
>> 32 // Author: Fan Lei
>> 33 // Organisation: QinetiQ ltd.
>> 34 // Customer: ESA/ESTEC
>> 35 //
>> 36 ///////////////////////////////////////////////////////////////////////////////
>> 37 //
>> 38 // CHANGE HISTORY
>> 39 // --------------
>> 40 //
>> 41 //
>> 42 // Version 1.0, 05/02/2004, Fan Lei, Created.
>> 43 // Based on the G4GeneralParticleSource class in Geant4 v6.0
>> 44 //
>> 45 ///////////////////////////////////////////////////////////////////////////////
27 // 46 //
28 // Author: Fan Lei, QinetiQ ltd - 05/02/2004 <<
29 // Customer: ESA/ESTEC <<
30 // Revisions: Andrew Green, Andrea Dotti <<
31 // ------------------------------------------- <<
32 #include "G4SPSEneDistribution.hh" <<
33 <<
34 #include "G4Exp.hh" <<
35 #include "G4SystemOfUnits.hh" <<
36 #include "G4UnitsTable.hh" <<
37 #include "Randomize.hh" 47 #include "Randomize.hh"
38 #include "G4AutoLock.hh" << 48 //#include <cmath>
39 #include "G4Threading.hh" << 49
>> 50 #include "G4SPSEneDistribution.hh"
40 51
41 G4SPSEneDistribution::G4SPSEneDistribution() << 52 G4SPSEneDistribution::G4SPSEneDistribution() {
42 { << 53 //
43 G4MUTEXINIT(mutex); << 54 // Initialise all variables
44 << 55 particle_energy = 1.0 * MeV;
45 // Initialise all variables << 56
46 << 57 EnergyDisType = "Mono";
47 particle_energy = 1.0 * MeV; << 58 weight = 1.;
48 EnergyDisType = "Mono"; << 59 MonoEnergy = 1 * MeV;
49 weight=1.; << 60 Emin = 0.;
50 MonoEnergy = 1 * MeV; << 61 Emax = 1.e30;
51 Emin = 0.; << 62 alpha = 0.;
52 Emax = 1.e30; << 63 biasalpha = 0.;
53 alpha = 0.; << 64 prob_norm = 1.0;
54 biasalpha = 0.; << 65 Ezero = 0.;
55 prob_norm = 1.0; << 66 SE = 0.;
56 Ezero = 0.; << 67 Temp = 0.;
57 SE = 0.; << 68 grad = 0.;
58 Temp = 0.; << 69 cept = 0.;
59 grad = 0.; << 70 Biased = false; // not biased
60 cept = 0.; << 71 EnergySpec = true; // true - energy spectra, false - momentum spectra
61 IntType = "NULL"; // Interpolation type << 72 DiffSpec = true; // true - differential spec, false integral spec
62 << 73 IntType = "NULL"; // Interpolation type
63 ArbEmin = 0.; << 74 IPDFEnergyExist = false;
64 ArbEmax = 1.e30; << 75 IPDFArbExist = false;
65 << 76
66 verbosityLevel = 0; << 77 ArbEmin = 0.;
67 << 78 ArbEmax = 1.e30;
68 threadLocal_t& data = threadLocalData.Get(); << 79
69 data.Emax = Emax; << 80 verbosityLevel = 0;
70 data.Emin = Emin; << 81
71 data.alpha =alpha; << 82 }
72 data.cept = cept; << 83
73 data.Ezero = Ezero; << 84 G4SPSEneDistribution::~G4SPSEneDistribution() {
74 data.grad = grad; << 85 }
75 data.particle_energy = 0.; << 86
76 data.particle_definition = nullptr; << 87 void G4SPSEneDistribution::SetEnergyDisType(G4String DisType) {
77 data.weight = weight; << 88 EnergyDisType = DisType;
78 } << 89 if (EnergyDisType == "User") {
79 << 90 UDefEnergyH = IPDFEnergyH = ZeroPhysVector;
80 G4SPSEneDistribution::~G4SPSEneDistribution() << 91 IPDFEnergyExist = false;
81 { << 92 } else if (EnergyDisType == "Arb") {
82 G4MUTEXDESTROY(mutex); << 93 ArbEnergyH = IPDFArbEnergyH = ZeroPhysVector;
83 if(Arb_grad_cept_flag) << 94 IPDFArbExist = false;
84 { << 95 } else if (EnergyDisType == "Epn") {
85 delete [] Arb_grad; << 96 UDefEnergyH = IPDFEnergyH = ZeroPhysVector;
86 delete [] Arb_cept; << 97 IPDFEnergyExist = false;
87 } << 98 EpnEnergyH = ZeroPhysVector;
88 << 99 }
89 if(Arb_alpha_Const_flag) << 100 }
90 { << 101
91 delete [] Arb_alpha; << 102 void G4SPSEneDistribution::SetEmin(G4double emi) {
92 delete [] Arb_Const; << 103 Emin = emi;
93 } << 104 }
94 << 105
95 if(Arb_ezero_flag) << 106 void G4SPSEneDistribution::SetEmax(G4double ema) {
96 { << 107 Emax = ema;
97 delete [] Arb_ezero; << 108 }
98 } << 109
99 delete Bbody_x; << 110 void G4SPSEneDistribution::SetMonoEnergy(G4double menergy) {
100 delete BBHist; << 111 MonoEnergy = menergy;
101 delete CP_x; << 112 }
102 delete CPHist; << 113
103 for (auto & it : SplineInt) << 114 void G4SPSEneDistribution::SetBeamSigmaInE(G4double e) {
104 { << 115 SE = e;
105 delete it; << 116 }
106 it = nullptr; << 117 void G4SPSEneDistribution::SetAlpha(G4double alp) {
107 } << 118 alpha = alp;
108 SplineInt.clear(); << 119 }
109 } << 120
110 << 121 void G4SPSEneDistribution::SetBiasAlpha(G4double alp) {
111 void G4SPSEneDistribution::SetEnergyDisType(co << 122 biasalpha = alp;
112 { << 123 Biased = true;
113 G4AutoLock l(&mutex); << 124 }
114 EnergyDisType = DisType; << 125
115 if (EnergyDisType == "User") << 126 void G4SPSEneDistribution::SetTemp(G4double tem) {
116 { << 127 Temp = tem;
117 UDefEnergyH = IPDFEnergyH = ZeroPhysVector << 128 }
118 IPDFEnergyExist = false; << 129
119 } << 130 void G4SPSEneDistribution::SetEzero(G4double eze) {
120 else if (EnergyDisType == "Arb") << 131 Ezero = eze;
121 { << 132 }
122 ArbEnergyH = IPDFArbEnergyH = ZeroPhysVect << 133
123 IPDFArbExist = false; << 134 void G4SPSEneDistribution::SetGradient(G4double gr) {
124 } << 135 grad = gr;
125 else if (EnergyDisType == "Epn") << 136 }
126 { << 137
127 UDefEnergyH = IPDFEnergyH = ZeroPhysVector << 138 void G4SPSEneDistribution::SetInterCept(G4double c) {
128 IPDFEnergyExist = false; << 139 cept = c;
129 EpnEnergyH = ZeroPhysVector; << 140 }
130 } << 141
131 } << 142 void G4SPSEneDistribution::UserEnergyHisto(G4ThreeVector input) {
132 << 143 G4double ehi, val;
133 const G4String& G4SPSEneDistribution::GetEnerg << 144 ehi = input.x();
134 { << 145 val = input.y();
135 G4AutoLock l(&mutex); << 146 if (verbosityLevel > 1) {
136 return EnergyDisType; << 147 G4cout << "In UserEnergyHisto" << G4endl;
137 } << 148 G4cout << " " << ehi << " " << val << G4endl;
138 << 149 }
139 void G4SPSEneDistribution::SetEmin(G4double em << 150 UDefEnergyH.InsertValues(ehi, val);
140 { << 151 Emax = ehi;
141 G4AutoLock l(&mutex); << 152 }
142 Emin = emi; << 153
143 threadLocalData.Get().Emin = Emin; << 154 void G4SPSEneDistribution::ArbEnergyHisto(G4ThreeVector input) {
144 } << 155 G4double ehi, val;
145 << 156 ehi = input.x();
146 G4double G4SPSEneDistribution::GetEmin() const << 157 val = input.y();
147 { << 158 if (verbosityLevel > 1) {
148 return threadLocalData.Get().Emin; << 159 G4cout << "In ArbEnergyHisto" << G4endl;
149 } << 160 G4cout << " " << ehi << " " << val << G4endl;
150 << 161 }
151 G4double G4SPSEneDistribution::GetArbEmin() << 162 ArbEnergyH.InsertValues(ehi, val);
152 { << 163 }
153 G4AutoLock l(&mutex); << 164
154 return ArbEmin; << 165 void G4SPSEneDistribution::ArbEnergyHistoFile(G4String filename) {
155 } << 166 std::ifstream infile(filename, std::ios::in);
156 << 167 if (!infile)
157 G4double G4SPSEneDistribution::GetArbEmax() << 168 G4Exception("Unable to open the histo ASCII file");
158 { << 169 G4double ehi, val;
159 G4AutoLock l(&mutex); << 170 while (infile >> ehi >> val) {
160 return ArbEmax; << 171 ArbEnergyH.InsertValues(ehi, val);
161 } << 172 }
162 << 173 }
163 void G4SPSEneDistribution::SetEmax(G4double em << 174
164 { << 175 void G4SPSEneDistribution::EpnEnergyHisto(G4ThreeVector input) {
165 G4AutoLock l(&mutex); << 176 G4double ehi, val;
166 Emax = ema; << 177 ehi = input.x();
167 threadLocalData.Get().Emax = Emax; << 178 val = input.y();
168 } << 179 if (verbosityLevel > 1) {
169 << 180 G4cout << "In EpnEnergyHisto" << G4endl;
170 G4double G4SPSEneDistribution::GetEmax() const << 181 G4cout << " " << ehi << " " << val << G4endl;
171 { << 182 }
172 return threadLocalData.Get().Emax; << 183 EpnEnergyH.InsertValues(ehi, val);
173 } << 184 Emax = ehi;
174 << 185 Epnflag = true;
175 void G4SPSEneDistribution::SetMonoEnergy(G4dou << 186 }
176 { << 187
177 G4AutoLock l(&mutex); << 188 void G4SPSEneDistribution::Calculate() {
178 MonoEnergy = menergy; << 189 if (EnergyDisType == "Cdg")
179 } << 190 CalculateCdgSpectrum();
180 << 191 else if (EnergyDisType == "Bbody")
181 void G4SPSEneDistribution::SetBeamSigmaInE(G4d << 192 CalculateBbodySpectrum();
182 { << 193 }
183 G4AutoLock l(&mutex); << 194
184 SE = e; << 195 void G4SPSEneDistribution::CalculateCdgSpectrum() {
185 } << 196 // This uses the spectrum from The INTEGRAL Mass Model (TIMM)
186 void G4SPSEneDistribution::SetAlpha(G4double a << 197 // to generate a Cosmic Diffuse X/gamma ray spectrum.
187 { << 198 G4double pfact[2] = { 8.5, 112 };
188 G4AutoLock l(&mutex); << 199 G4double spind[2] = { 1.4, 2.3 };
189 alpha = alp; << 200 G4double ene_line[3] = { 1. * keV, 18. * keV, 1E6 * keV };
190 threadLocalData.Get().alpha = alpha; << 201 G4int n_par;
191 } << 202
192 << 203 ene_line[0] = Emin;
193 void G4SPSEneDistribution::SetBiasAlpha(G4doub << 204 if (Emin < 18 * keV) {
194 { << 205 n_par = 2;
195 G4AutoLock l(&mutex); << 206 ene_line[2] = Emax;
196 biasalpha = alp; << 207 if (Emax < 18 * keV) {
197 Biased = true; << 208 n_par = 1;
198 } << 209 ene_line[1] = Emax;
199 << 210 }
200 void G4SPSEneDistribution::SetTemp(G4double te << 211 } else {
201 { << 212 n_par = 1;
202 G4AutoLock l(&mutex); << 213 pfact[0] = 112.;
203 Temp = tem; << 214 spind[0] = 2.3;
204 } << 215 ene_line[1] = Emax;
205 << 216 }
206 void G4SPSEneDistribution::SetEzero(G4double e << 217
207 { << 218 // Create a cumulative histogram.
208 G4AutoLock l(&mutex); << 219 CDGhist[0] = 0.;
209 Ezero = eze; << 220 G4double omalpha;
210 threadLocalData.Get().Ezero = Ezero; << 221 G4int i = 0;
211 } << 222
212 << 223 while (i < n_par) {
213 void G4SPSEneDistribution::SetGradient(G4doubl << 224 omalpha = 1. - spind[i];
214 { << 225 CDGhist[i + 1] = CDGhist[i] + (pfact[i] / omalpha) * (std::pow(
215 G4AutoLock l(&mutex); << 226 ene_line[i + 1] / keV, omalpha) - std::pow(ene_line[i] / keV,
216 grad = gr; << 227 omalpha));
217 threadLocalData.Get().grad = grad; << 228 i++;
218 } << 229 }
219 << 230
220 void G4SPSEneDistribution::SetInterCept(G4doub << 231 // Normalise histo and divide by 1000 to make MeV.
221 { << 232 i = 0;
222 G4AutoLock l(&mutex); << 233 while (i < n_par) {
223 cept = c; << 234 CDGhist[i + 1] = CDGhist[i + 1] / CDGhist[n_par];
224 threadLocalData.Get().cept = cept; << 235 // G4cout << CDGhist[i] << CDGhist[n_par] << G4endl;
225 } << 236 i++;
226 << 237 }
227 const G4String& G4SPSEneDistribution::GetIntTy << 238 }
228 { << 239
229 G4AutoLock l(&mutex); << 240 void G4SPSEneDistribution::CalculateBbodySpectrum() {
230 return IntType; << 241 // create bbody spectrum
231 } << 242 // Proved very hard to integrate indefinitely, so different
232 << 243 // method. User inputs emin, emax and T. These are used to
233 void G4SPSEneDistribution::SetBiasRndm(G4SPSRa << 244 // create a 10,000 bin histogram.
234 { << 245 // Use photon density spectrum = 2 nu**2/c**2 * (std::exp(h nu/kT)-1)
235 G4AutoLock l(&mutex); << 246 // = 2 E**2/h**2c**2 times the exponential
236 eneRndm = a; << 247 G4double erange = Emax - Emin;
237 } << 248 G4double steps = erange / 10000.;
238 << 249 G4double Bbody_y[10000];
239 void G4SPSEneDistribution::SetVerbosity(G4int << 250 G4double k = 8.6181e-11; //Boltzmann const in MeV/K
240 { << 251 G4double h = 4.1362e-21; // Plancks const in MeV s
241 G4AutoLock l(&mutex); << 252 G4double c = 3e8; // Speed of light
242 verbosityLevel = a; << 253 G4double h2 = h * h;
243 } << 254 G4double c2 = c * c;
244 << 255 G4int count = 0;
245 G4double G4SPSEneDistribution::GetWeight() con << 256 G4double sum = 0.;
246 { << 257 BBHist[0] = 0.;
247 return threadLocalData.Get().weight; << 258 while (count < 10000) {
248 } << 259 Bbody_x[count] = Emin + G4double(count * steps);
249 << 260 Bbody_y[count] = (2. * std::pow(Bbody_x[count], 2.)) / (h2 * c2
250 G4double G4SPSEneDistribution::GetMonoEnergy() << 261 * (std::exp(Bbody_x[count] / (k * Temp)) - 1.));
251 { << 262 sum = sum + Bbody_y[count];
252 G4AutoLock l(&mutex); << 263 BBHist[count + 1] = BBHist[count] + Bbody_y[count];
253 return MonoEnergy; << 264 count++;
254 } << 265 }
255 << 266
256 G4double G4SPSEneDistribution::GetSE() << 267 Bbody_x[10000] = Emax;
257 { << 268 // Normalise cumulative histo.
258 G4AutoLock l(&mutex); << 269 count = 0;
259 return SE; << 270 while (count < 10001) {
260 } << 271 BBHist[count] = BBHist[count] / sum;
261 << 272 count++;
262 G4double G4SPSEneDistribution::Getalpha() cons << 273 }
263 { << 274 }
264 return threadLocalData.Get().alpha; << 275
265 } << 276 void G4SPSEneDistribution::InputEnergySpectra(G4bool value) {
266 << 277 // Allows user to specifiy spectrum is momentum
267 G4double G4SPSEneDistribution::GetEzero() cons << 278 EnergySpec = value; // false if momentum
268 { << 279 if (verbosityLevel > 1)
269 return threadLocalData.Get().Ezero; << 280 G4cout << "EnergySpec has value " << EnergySpec << G4endl;
270 } << 281 }
271 << 282
272 G4double G4SPSEneDistribution::GetTemp() << 283 void G4SPSEneDistribution::InputDifferentialSpectra(G4bool value) {
273 { << 284 // Allows user to specify integral or differential spectra
274 G4AutoLock l(&mutex); << 285 DiffSpec = value; // true = differential, false = integral
275 return Temp; << 286 if (verbosityLevel > 1)
276 } << 287 G4cout << "Diffspec has value " << DiffSpec << G4endl;
277 << 288 }
278 G4double G4SPSEneDistribution::Getgrad() const << 289
279 { << 290 void G4SPSEneDistribution::ArbInterpolate(G4String IType) {
280 return threadLocalData.Get().grad; << 291 if (EnergyDisType != "Arb")
281 } << 292 G4cout << "Error: this is for arbitrary distributions" << G4endl;
282 << 293 IntType = IType;
283 G4double G4SPSEneDistribution::Getcept() const << 294 ArbEmax = ArbEnergyH.GetMaxLowEdgeEnergy();
284 { << 295 ArbEmin = ArbEnergyH.GetMinLowEdgeEnergy();
285 return threadLocalData.Get().cept; << 296
286 } << 297 // Now interpolate points
287 << 298 if (IntType == "Lin")
288 G4PhysicsFreeVector G4SPSEneDistribution::GetU << 299 LinearInterpolation();
289 { << 300 if (IntType == "Log")
290 G4AutoLock l(&mutex); << 301 LogInterpolation();
291 return UDefEnergyH; << 302 if (IntType == "Exp")
292 } << 303 ExpInterpolation();
293 << 304 if (IntType == "Spline")
294 G4PhysicsFreeVector G4SPSEneDistribution::GetA << 305 SplineInterpolation();
295 { << 306 }
296 G4AutoLock l(&mutex); << 307
297 return ArbEnergyH; << 308 void G4SPSEneDistribution::LinearInterpolation() {
298 } << 309 // Method to do linear interpolation on the Arb points
299 << 310 // Calculate equation of each line segment, max 1024.
300 void G4SPSEneDistribution::UserEnergyHisto(con << 311 // Calculate Area under each segment
301 { << 312 // Create a cumulative array which is then normalised Arb_Cum_Area
302 G4AutoLock l(&mutex); << 313
303 G4double ehi = input.x(), << 314 G4double Area_seg[1024]; // Stores area under each segment
304 val = input.y(); << 315 G4double sum = 0., Arb_x[1024], Arb_y[1024], Arb_Cum_Area[1024];
305 if (verbosityLevel > 1) << 316 G4int i, count;
306 { << 317 G4int maxi = ArbEnergyH.GetVectorLength();
307 G4cout << "In UserEnergyHisto" << G4endl; << 318 for (i = 0; i < maxi; i++) {
308 G4cout << " " << ehi << " " << val << G4en << 319 Arb_x[i] = ArbEnergyH.GetLowEdgeEnergy(size_t(i));
309 } << 320 Arb_y[i] = ArbEnergyH(size_t(i));
310 UDefEnergyH.InsertValues(ehi, val); << 321 }
311 Emax = ehi; << 322 // Points are now in x,y arrays. If the spectrum is integral it has to be
312 threadLocalData.Get().Emax = Emax; << 323 // made differential and if momentum it has to be made energy.
313 } << 324 if (DiffSpec == false) {
314 << 325 // Converts integral point-wise spectra to Differential
315 void G4SPSEneDistribution::ArbEnergyHisto(cons << 326 for (count = 0; count < maxi - 1; count++) {
316 { << 327 Arb_y[count] = (Arb_y[count] - Arb_y[count + 1])
317 G4AutoLock l(&mutex); << 328 / (Arb_x[count + 1] - Arb_x[count]);
318 G4double ehi = input.x(), << 329 }
319 val = input.y(); << 330 maxi--;
320 if (verbosityLevel > 1) << 331 }
321 { << 332 //
322 G4cout << "In ArbEnergyHisto" << G4endl; << 333 if (EnergySpec == false) {
323 G4cout << " " << ehi << " " << val << G4en << 334 // change currently stored values (emin etc) which are actually momenta
324 } << 335 // to energies.
325 ArbEnergyH.InsertValues(ehi, val); << 336 if (particle_definition == NULL)
326 } << 337 G4cout << "Error: particle not defined" << G4endl;
327 << 338 else {
328 void G4SPSEneDistribution::ArbEnergyHistoFile( << 339 // Apply Energy**2 = p**2c**2 + m0**2c**4
329 { << 340 // p should be entered as E/c i.e. without the division by c
330 G4AutoLock l(&mutex); << 341 // being done - energy equivalent.
331 std::ifstream infile(filename, std::ios::in) << 342 G4double mass = particle_definition->GetPDGMass();
332 if (!infile) << 343 // convert point to energy unit and its value to per energy unit
333 { << 344 G4double total_energy;
334 G4Exception("G4SPSEneDistribution::ArbEner << 345 for (count = 0; count < maxi; count++) {
335 FatalException, "Unable to ope << 346 total_energy = std::sqrt((Arb_x[count] * Arb_x[count]) + (mass
336 } << 347 * mass)); // total energy
337 G4double ehi, val; << 348
338 while (infile >> ehi >> val) << 349 Arb_y[count] = Arb_y[count] * Arb_x[count] / total_energy;
339 { << 350 Arb_x[count] = total_energy - mass; // kinetic energy
340 ArbEnergyH.InsertValues(ehi, val); << 351 }
341 } << 352 }
342 } << 353 }
343 << 354 //
344 void G4SPSEneDistribution::EpnEnergyHisto(cons << 355 i = 1;
345 { << 356 Arb_grad[0] = 0.;
346 G4AutoLock l(&mutex); << 357 Arb_cept[0] = 0.;
347 G4double ehi = input.x(), << 358 Area_seg[0] = 0.;
348 val = input.y(); << 359 Arb_Cum_Area[0] = 0.;
349 if (verbosityLevel > 1) << 360 while (i < maxi) {
350 { << 361 // calc gradient and intercept for each segment
351 G4cout << "In EpnEnergyHisto" << G4endl; << 362 Arb_grad[i] = (Arb_y[i] - Arb_y[i - 1]) / (Arb_x[i] - Arb_x[i - 1]);
352 G4cout << " " << ehi << " " << val << G4en << 363 if (verbosityLevel == 2)
353 } << 364 G4cout << Arb_grad[i] << G4endl;
354 EpnEnergyH.InsertValues(ehi, val); << 365 if (Arb_grad[i] > 0.) {
355 Emax = ehi; << 366 if (verbosityLevel == 2)
356 threadLocalData.Get().Emax = Emax; << 367 G4cout << "Arb_grad is positive" << G4endl;
357 Epnflag = true; << 368 Arb_cept[i] = Arb_y[i] - (Arb_grad[i] * Arb_x[i]);
358 } << 369 } else if (Arb_grad[i] < 0.) {
359 << 370 if (verbosityLevel == 2)
360 void G4SPSEneDistribution::Calculate() << 371 G4cout << "Arb_grad is negative" << G4endl;
361 { << 372 Arb_cept[i] = Arb_y[i] + (-Arb_grad[i] * Arb_x[i]);
362 G4AutoLock l(&mutex); << 373 } else {
363 if (EnergyDisType == "Cdg") << 374 if (verbosityLevel == 2)
364 { << 375 G4cout << "Arb_grad is 0." << G4endl;
365 CalculateCdgSpectrum(); << 376 Arb_cept[i] = Arb_y[i];
366 } << 377 }
367 else if (EnergyDisType == "Bbody") << 378
368 { << 379 Area_seg[i] = ((Arb_grad[i] / 2) * (Arb_x[i] * Arb_x[i] - Arb_x[i - 1]
369 if(!BBhistInit) << 380 * Arb_x[i - 1]) + Arb_cept[i] * (Arb_x[i] - Arb_x[i - 1]));
370 { << 381 Arb_Cum_Area[i] = Arb_Cum_Area[i - 1] + Area_seg[i];
371 BBInitHists(); << 382 sum = sum + Area_seg[i];
372 } << 383 if (verbosityLevel == 2)
373 CalculateBbodySpectrum(); << 384 G4cout << Arb_x[i] << Arb_y[i] << Area_seg[i] << sum << Arb_grad[i]
374 } << 385 << G4endl;
375 else if (EnergyDisType == "CPow") << 386 i++;
376 { << 387 }
377 if(!CPhistInit) << 388
378 { << 389 i = 0;
379 CPInitHists(); << 390 while (i < maxi) {
380 } << 391 Arb_Cum_Area[i] = Arb_Cum_Area[i] / sum; // normalisation
381 CalculateCPowSpectrum(); << 392 IPDFArbEnergyH.InsertValues(Arb_x[i], Arb_Cum_Area[i]);
382 } << 393 i++;
383 } << 394 }
384 << 395
385 void G4SPSEneDistribution::BBInitHists() // M << 396 // now scale the ArbEnergyH, needed by Probability()
386 { << 397 ArbEnergyH.ScaleVector(1., 1./sum);
387 BBHist = new std::vector<G4double>(10001, 0. << 398
388 Bbody_x = new std::vector<G4double>(10001, 0 << 399 if (verbosityLevel >= 1) {
389 BBhistInit = true; << 400 G4cout << "Leaving LinearInterpolation" << G4endl;
390 } << 401 ArbEnergyH.DumpValues();
391 << 402 IPDFArbEnergyH.DumpValues();
392 void G4SPSEneDistribution::CPInitHists() // M << 403 }
393 { << 404 }
394 CPHist = new std::vector<G4double>(10001, 0. << 405
395 CP_x = new std::vector<G4double>(10001, 0.0) << 406 void G4SPSEneDistribution::LogInterpolation() {
396 CPhistInit = true; << 407 // Interpolation based on Logarithmic equations
397 } << 408 // Generate equations of line segments
398 << 409 // y = Ax**alpha => log y = alpha*logx + logA
399 void G4SPSEneDistribution::CalculateCdgSpectru << 410 // Find area under line segments
400 { << 411 // create normalised, cumulative array Arb_Cum_Area
401 // This uses the spectrum from the INTEGRAL << 412 G4double Area_seg[1024]; // Stores area under each segment
402 // to generate a Cosmic Diffuse X/gamma ray << 413 G4double sum = 0., Arb_x[1024], Arb_y[1024], Arb_Cum_Area[1024];
403 << 414 G4int i, count;
404 G4double pfact[2] = { 8.5, 112 }; << 415 G4int maxi = ArbEnergyH.GetVectorLength();
405 G4double spind[2] = { 1.4, 2.3 }; << 416 for (i = 0; i < maxi; i++) {
406 G4double ene_line[3] = { 1. * keV, 18. * keV << 417 Arb_x[i] = ArbEnergyH.GetLowEdgeEnergy(size_t(i));
407 G4int n_par; << 418 Arb_y[i] = ArbEnergyH(size_t(i));
408 << 419 }
409 ene_line[0] = threadLocalData.Get().Emin; << 420 // Points are now in x,y arrays. If the spectrum is integral it has to be
410 if (threadLocalData.Get().Emin < 18 * keV) << 421 // made differential and if momentum it has to be made energy.
411 { << 422 if (DiffSpec == false) {
412 n_par = 2; << 423 // Converts integral point-wise spectra to Differential
413 ene_line[2] = threadLocalData.Get().Emax; << 424 for (count = 0; count < maxi - 1; count++) {
414 if (threadLocalData.Get().Emax < 18 * keV) << 425 Arb_y[count] = (Arb_y[count] - Arb_y[count + 1])
415 { << 426 / (Arb_x[count + 1] - Arb_x[count]);
416 n_par = 1; << 427 }
417 ene_line[1] = threadLocalData.Get().Emax << 428 maxi--;
418 } << 429 }
419 } << 430 //
420 else << 431 if (EnergySpec == false) {
421 { << 432 // change currently stored values (emin etc) which are actually momenta
422 n_par = 1; << 433 // to energies.
423 pfact[0] = 112.; << 434 if (particle_definition == NULL)
424 spind[0] = 2.3; << 435 G4cout << "Error: particle not defined" << G4endl;
425 ene_line[1] = threadLocalData.Get().Emax; << 436 else {
426 } << 437 // Apply Energy**2 = p**2c**2 + m0**2c**4
427 << 438 // p should be entered as E/c i.e. without the division by c
428 // Create a cumulative histogram << 439 // being done - energy equivalent.
429 // << 440 G4double mass = particle_definition->GetPDGMass();
430 CDGhist[0] = 0.; << 441 // convert point to energy unit and its value to per energy unit
431 G4double omalpha; << 442 G4double total_energy;
432 G4int i = 0; << 443 for (count = 0; count < maxi; count++) {
433 while (i < n_par) << 444 total_energy = std::sqrt((Arb_x[count] * Arb_x[count]) + (mass
434 { << 445 * mass)); // total energy
435 omalpha = 1. - spind[i]; << 446
436 CDGhist[i + 1] = CDGhist[i] + (pfact[i] / << 447 Arb_y[count] = Arb_y[count] * Arb_x[count] / total_energy;
437 * (std::pow(en << 448 Arb_x[count] = total_energy - mass; // kinetic energy
438 - std::pow(ene << 449 }
439 ++i; << 450 }
440 } << 451 }
441 << 452 //
442 // Normalise histo and divide by 1000 to mak << 453 i = 1;
443 // << 454 Arb_alpha[0] = 0.;
444 i = 0; << 455 Arb_Const[0] = 0.;
445 while (i < n_par) << 456 Area_seg[0] = 0.;
446 { << 457 Arb_Cum_Area[0] = 0.;
447 CDGhist[i + 1] = CDGhist[i + 1] / CDGhist[ << 458 if (Arb_x[0] <= 0. || Arb_y[0] <= 0.) {
448 ++i; << 459 G4cout << "You should not use log interpolation with points <= 0."
449 } << 460 << G4endl;
450 } << 461 G4cout << "These will be changed to 1e-20, which may cause problems"
451 << 462 << G4endl;
452 void G4SPSEneDistribution::CalculateBbodySpect << 463 if (Arb_x[0] <= 0.)
453 { << 464 Arb_x[0] = 1e-20;
454 // Create bbody spectrum << 465 if (Arb_y[0] <= 0.)
455 // Proved very hard to integrate indefinitel << 466 Arb_y[0] = 1e-20;
456 // User inputs emin, emax and T. These are u << 467 }
457 // bin histogram. << 468
458 // Use photon density spectrum = 2 nu**2/c** << 469 G4double alp;
459 // = 2 E**2/h**2c**2 times the exponential << 470 while (i < maxi) {
460 << 471 // Incase points are negative or zero
461 G4double erange = threadLocalData.Get().Emax << 472 if (Arb_x[i] <= 0. || Arb_y[i] <= 0.) {
462 G4double steps = erange / 10000.; << 473 G4cout << "You should not use log interpolation with points <= 0."
463 << 474 << G4endl;
464 const G4double k = 8.6181e-11; //Boltzmann c << 475 G4cout
465 const G4double h = 4.1362e-21; // Plancks co << 476 << "These will be changed to 1e-20, which may cause problems"
466 const G4double c = 3e8; // Speed of light << 477 << G4endl;
467 const G4double h2 = h * h; << 478 if (Arb_x[i] <= 0.)
468 const G4double c2 = c * c; << 479 Arb_x[i] = 1e-20;
469 G4int count = 0; << 480 if (Arb_y[i] <= 0.)
470 G4double sum = 0.; << 481 Arb_y[i] = 1e-20;
471 BBHist->at(0) = 0.; << 482 }
472 << 483
473 while (count < 10000) << 484 Arb_alpha[i] = (std::log10(Arb_y[i]) - std::log10(Arb_y[i - 1]))
474 { << 485 / (std::log10(Arb_x[i]) - std::log10(Arb_x[i - 1]));
475 Bbody_x->at(count) = threadLocalData.Get() << 486 Arb_Const[i] = Arb_y[i] / (std::pow(Arb_x[i], Arb_alpha[i]));
476 G4double Bbody_y = (2. * std::pow(Bbody_x- << 487 alp = Arb_alpha[i] + 1;
477 / (h2*c2*(std::exp(Bbody_ << 488 if (alp == 0.) {
478 sum = sum + Bbody_y; << 489 Area_seg[i] = Arb_Const[i] * (std::log(Arb_x[i]) - std::log(Arb_x[i - 1]));
479 BBHist->at(count + 1) = BBHist->at(count) << 490 } else {
480 ++count; << 491 Area_seg[i] = (Arb_Const[i] / alp) * (std::pow(Arb_x[i], alp)
481 } << 492 - std::pow(Arb_x[i - 1], alp));
482 << 493 }
483 Bbody_x->at(10000) = threadLocalData.Get().E << 494 sum = sum + Area_seg[i];
484 << 495 Arb_Cum_Area[i] = Arb_Cum_Area[i - 1] + Area_seg[i];
485 // Normalise cumulative histo << 496 if (verbosityLevel == 2)
486 // << 497 G4cout << Arb_alpha[i] << Arb_Const[i] << Area_seg[i] << G4endl;
487 count = 0; << 498 i++;
488 while (count < 10001) << 499 }
489 { << 500
490 BBHist->at(count) = BBHist->at(count) / su << 501 i = 0;
491 ++count; << 502 while (i < maxi) {
492 } << 503 Arb_Cum_Area[i] = Arb_Cum_Area[i] / sum;
493 } << 504 IPDFArbEnergyH.InsertValues(Arb_x[i], Arb_Cum_Area[i]);
494 << 505 i++;
495 void G4SPSEneDistribution::CalculateCPowSpectr << 506 }
496 { << 507
497 // Create cutoff power-law spectrum, x^a exp << 508 // now scale the ArbEnergyH, needed by Probability()
498 // The integral of this function is an incom << 509 ArbEnergyH.ScaleVector(1., 1./sum);
499 // is only available in the Boost library. << 510
500 // << 511 if (verbosityLevel >= 1)
501 // User inputs are emin, emax and alpha and << 512 G4cout << "Leaving LogInterpolation " << G4endl;
502 // create a 10,000 bin histogram. << 513 }
503 << 514
504 G4double erange = threadLocalData.Get().Emax << 515 void G4SPSEneDistribution::ExpInterpolation() {
505 G4double steps = erange / 10000.; << 516 // Interpolation based on Exponential equations
506 alpha = threadLocalData.Get().alpha ; << 517 // Generate equations of line segments
507 Ezero = threadLocalData.Get().Ezero ; << 518 // y = Ae**-(x/e0) => ln y = -x/e0 + lnA
508 << 519 // Find area under line segments
509 G4int count = 0; << 520 // create normalised, cumulative array Arb_Cum_Area
510 G4double sum = 0.; << 521 G4double Area_seg[1024]; // Stores area under each segment
511 CPHist->at(0) = 0.; << 522 G4double sum = 0., Arb_x[1024], Arb_y[1024], Arb_Cum_Area[1024];
512 << 523 G4int i, count;
513 while (count < 10000) << 524 G4int maxi = ArbEnergyH.GetVectorLength();
514 { << 525 for (i = 0; i < maxi; i++) {
515 CP_x->at(count) = threadLocalData.Get().Em << 526 Arb_x[i] = ArbEnergyH.GetLowEdgeEnergy(size_t(i));
516 G4double CP_y = std::pow(CP_x->at(count), << 527 Arb_y[i] = ArbEnergyH(size_t(i));
517 * std::exp(-CP_x->at(count) << 528 }
518 sum = sum + CP_y; << 529 // Points are now in x,y arrays. If the spectrum is integral it has to be
519 CPHist->at(count + 1) = CPHist->at(count) << 530 // made differential and if momentum it has to be made energy.
520 ++count; << 531 if (DiffSpec == false) {
521 } << 532 // Converts integral point-wise spectra to Differential
522 << 533 for (count = 0; count < maxi - 1; count++) {
523 CP_x->at(10000) = threadLocalData.Get().Emax << 534 Arb_y[count] = (Arb_y[count] - Arb_y[count + 1])
524 << 535 / (Arb_x[count + 1] - Arb_x[count]);
525 // Normalise cumulative histo << 536 }
526 // << 537 maxi--;
527 count = 0; << 538 }
528 while (count < 10001) << 539 //
529 { << 540 if (EnergySpec == false) {
530 CPHist->at(count) = CPHist->at(count) / su << 541 // change currently stored values (emin etc) which are actually momenta
531 ++count; << 542 // to energies.
532 } << 543 if (particle_definition == NULL)
533 } << 544 G4cout << "Error: particle not defined" << G4endl;
534 << 545 else {
535 void G4SPSEneDistribution::InputEnergySpectra( << 546 // Apply Energy**2 = p**2c**2 + m0**2c**4
536 { << 547 // p should be entered as E/c i.e. without the division by c
537 G4AutoLock l(&mutex); << 548 // being done - energy equivalent.
538 << 549 G4double mass = particle_definition->GetPDGMass();
539 // Allows user to specify spectrum is moment << 550 // convert point to energy unit and its value to per energy unit
540 // << 551 G4double total_energy;
541 EnergySpec = value; // false if momentum << 552 for (count = 0; count < maxi; count++) {
542 if (verbosityLevel > 1) << 553 total_energy = std::sqrt((Arb_x[count] * Arb_x[count]) + (mass
543 { << 554 * mass)); // total energy
544 G4cout << "EnergySpec has value " << Energ << 555
545 } << 556 Arb_y[count] = Arb_y[count] * Arb_x[count] / total_energy;
546 } << 557 Arb_x[count] = total_energy - mass; // kinetic energy
547 << 558 }
548 void G4SPSEneDistribution::InputDifferentialSp << 559 }
549 { << 560 }
550 G4AutoLock l(&mutex); << 561 //
551 << 562 i = 1;
552 // Allows user to specify integral or differ << 563 Arb_ezero[0] = 0.;
553 // << 564 Arb_Const[0] = 0.;
554 DiffSpec = value; // true = differential, fa << 565 Area_seg[0] = 0.;
555 if (verbosityLevel > 1) << 566 Arb_Cum_Area[0] = 0.;
556 { << 567 while (i < maxi) {
557 G4cout << "Diffspec has value " << DiffSpe << 568 G4double test = std::log(Arb_y[i]) - std::log(Arb_y[i - 1]);
558 } << 569 if (test > 0. || test < 0.) {
559 } << 570 Arb_ezero[i] = -(Arb_x[i] - Arb_x[i - 1]) / (std::log(Arb_y[i])
560 << 571 - std::log(Arb_y[i - 1]));
561 void G4SPSEneDistribution::ArbInterpolate(cons << 572 Arb_Const[i] = Arb_y[i] / (std::exp(-Arb_x[i] / Arb_ezero[i]));
562 { << 573 Area_seg[i] = -(Arb_Const[i] * Arb_ezero[i]) * (std::exp(-Arb_x[i]
563 G4AutoLock l(&mutex); << 574 / Arb_ezero[i]) - std::exp(-Arb_x[i - 1] / Arb_ezero[i]));
564 << 575 } else {
565 IntType = IType; << 576 G4cout << "Flat line segment: problem" << G4endl;
566 ArbEmax = ArbEnergyH.GetMaxEnergy(); << 577 Arb_ezero[i] = 0.;
567 ArbEmin = ArbEnergyH.Energy(0); << 578 Arb_Const[i] = 0.;
568 << 579 Area_seg[i] = 0.;
569 // Now interpolate points << 580 }
570 << 581 sum = sum + Area_seg[i];
571 if (IntType == "Lin") LinearInterpolation(); << 582 Arb_Cum_Area[i] = Arb_Cum_Area[i - 1] + Area_seg[i];
572 if (IntType == "Log") LogInterpolation(); << 583 if (verbosityLevel == 2)
573 if (IntType == "Exp") ExpInterpolation(); << 584 G4cout << Arb_ezero[i] << Arb_Const[i] << Area_seg[i] << G4endl;
574 if (IntType == "Spline") SplineInterpolation << 585 i++;
575 } << 586 }
576 << 587
577 void G4SPSEneDistribution::LinearInterpolation << 588 i = 0;
578 { << 589 while (i < maxi) {
579 // Method to do linear interpolation on the << 590 Arb_Cum_Area[i] = Arb_Cum_Area[i] / sum;
580 // Calculate equation of each line segment, << 591 IPDFArbEnergyH.InsertValues(Arb_x[i], Arb_Cum_Area[i]);
581 // Calculate Area under each segment << 592 i++;
582 // Create a cumulative array which is then n << 593 }
583 << 594
584 G4double Area_seg[1024]; // Stores area unde << 595 // now scale the ArbEnergyH, needed by Probability()
585 G4double sum = 0., Arb_x[1024]={0.}, Arb_y[1 << 596 ArbEnergyH.ScaleVector(1., 1./sum);
586 std::size_t i, count; << 597
587 std::size_t maxi = ArbEnergyH.GetVectorLengt << 598 if (verbosityLevel >= 1)
588 for (i = 0; i < maxi; ++i) << 599 G4cout << "Leaving ExpInterpolation " << G4endl;
589 { << 600 }
590 Arb_x[i] = ArbEnergyH.GetLowEdgeEnergy(i); << 601
591 Arb_y[i] = ArbEnergyH(i); << 602 void G4SPSEneDistribution::SplineInterpolation() {
592 } << 603 // Interpolation using Splines.
593 << 604 // Create Normalised arrays, make x 0->1 and y hold
594 // Points are now in x,y arrays. If the spec << 605 // the function (Energy)
595 // made differential and if momentum it has << 606 //
596 << 607 // Current method based on the above will not work in all cases.
597 if (!DiffSpec) << 608 // new method is implemented below.
598 { <<
599 // Converts integral point-wise spectra to <<
600 // <<
601 for (count = 0; count < maxi-1; ++count) <<
602 { <<
603 Arb_y[count] = (Arb_y[count] - Arb_y[cou <<
604 / (Arb_x[count + 1] - Arb_x <<
605 } <<
606 --maxi; <<
607 } <<
608 <<
609 if (!EnergySpec) <<
610 { <<
611 // change currently stored values (emin et <<
612 // to energies <<
613 // <<
614 G4ParticleDefinition* pdef = threadLocalDa <<
615 if (pdef == nullptr) <<
616 { <<
617 G4Exception("G4SPSEneDistribution::Linea <<
618 "Event0302", FatalException, <<
619 "Error: particle not defined <<
620 } <<
621 else <<
622 { <<
623 // Apply Energy**2 = p**2c**2 + m0**2c** <<
624 // p should be entered as E/c i.e. witho <<
625 // being done - energy equivalent <<
626 <<
627 G4double mass = pdef->GetPDGMass(); <<
628 <<
629 // Convert point to energy unit and its <<
630 // <<
631 G4double total_energy; <<
632 for (count = 0; count < maxi; ++count) <<
633 { <<
634 total_energy = std::sqrt((Arb_x[count] <<
635 + (mass * mass)); // tota <<
636 Arb_y[count] = Arb_y[count] * Arb_x[co <<
637 Arb_x[count] = total_energy - mass; // <<
638 } <<
639 } <<
640 } <<
641 <<
642 i = 1; <<
643 <<
644 Arb_grad = new G4double [1024]; <<
645 Arb_cept = new G4double [1024]; <<
646 Arb_grad_cept_flag = true; <<
647 <<
648 Arb_grad[0] = 0.; <<
649 Arb_cept[0] = 0.; <<
650 Area_seg[0] = 0.; <<
651 Arb_Cum_Area[0] = 0.; <<
652 while (i < maxi) <<
653 { <<
654 // calculate gradient and intercept for ea <<
655 // <<
656 Arb_grad[i] = (Arb_y[i] - Arb_y[i - 1]) / <<
657 if (verbosityLevel == 2) <<
658 { <<
659 G4cout << Arb_grad[i] << G4endl; <<
660 } <<
661 if (Arb_grad[i] > 0.) <<
662 { <<
663 if (verbosityLevel == 2) <<
664 { <<
665 G4cout << "Arb_grad is positive" << G <<
666 } <<
667 Arb_cept[i] = Arb_y[i] - (Arb_grad[i] * <<
668 } <<
669 else if (Arb_grad[i] < 0.) <<
670 { <<
671 if (verbosityLevel == 2) <<
672 { <<
673 G4cout << "Arb_grad is negative" << G4 <<
674 } <<
675 Arb_cept[i] = Arb_y[i] + (-Arb_grad[i] * <<
676 } <<
677 else <<
678 { <<
679 if (verbosityLevel == 2) <<
680 { <<
681 G4cout << "Arb_grad is 0." << G4endl; <<
682 } <<
683 Arb_cept[i] = Arb_y[i]; <<
684 } <<
685 <<
686 Area_seg[i] = ((Arb_grad[i] / 2) <<
687 * (Arb_x[i] * Arb_x[i] - Arb_x <<
688 + Arb_cept[i] * (Arb_x[i] - Ar <<
689 Arb_Cum_Area[i] = Arb_Cum_Area[i - 1] + Ar <<
690 sum = sum + Area_seg[i]; <<
691 if (verbosityLevel == 2) <<
692 { <<
693 G4cout << Arb_x[i] << Arb_y[i] << Area_s <<
694 << Arb_grad[i] << G4endl; <<
695 } <<
696 ++i; <<
697 } <<
698 <<
699 i = 0; <<
700 while (i < maxi) <<
701 { <<
702 Arb_Cum_Area[i] = Arb_Cum_Area[i] / sum; / <<
703 IPDFArbEnergyH.InsertValues(Arb_x[i], Arb_ <<
704 ++i; <<
705 } <<
706 <<
707 // now scale the ArbEnergyH, needed by Proba <<
708 // <<
709 ArbEnergyH.ScaleVector(1., 1./sum); <<
710 <<
711 if (verbosityLevel >= 1) <<
712 { <<
713 G4cout << "Leaving LinearInterpolation" << <<
714 ArbEnergyH.DumpValues(); <<
715 IPDFArbEnergyH.DumpValues(); <<
716 } <<
717 } <<
718 <<
719 void G4SPSEneDistribution::LogInterpolation() <<
720 { <<
721 // Interpolation based on Logarithmic equati <<
722 // Generate equations of line segments <<
723 // y = Ax**alpha => log y = alpha*logx + log <<
724 // Find area under line segments <<
725 // Create normalised, cumulative array Arb_C <<
726 <<
727 G4double Area_seg[1024]; // Stores area unde <<
728 G4double sum = 0., Arb_x[1024]={0.}, Arb_y[1 <<
729 std::size_t i, count; <<
730 std::size_t maxi = ArbEnergyH.GetVectorLengt <<
731 for (i = 0; i < maxi; ++i) <<
732 { <<
733 Arb_x[i] = ArbEnergyH.GetLowEdgeEnergy(i); <<
734 Arb_y[i] = ArbEnergyH(i); <<
735 } <<
736 <<
737 // Points are now in x,y arrays. If the spec <<
738 // made differential and if momentum it has <<
739 <<
740 if (!DiffSpec) <<
741 { <<
742 // Converts integral point-wise spectra to <<
743 // <<
744 for (count = 0; count < maxi-1; ++count) <<
745 { <<
746 Arb_y[count] = (Arb_y[count] - Arb_y[cou <<
747 / (Arb_x[count + 1] - Arb_x <<
748 } <<
749 --maxi; <<
750 } <<
751 <<
752 if (!EnergySpec) <<
753 { <<
754 // Change currently stored values (emin et <<
755 // to energies <<
756 <<
757 G4ParticleDefinition* pdef = threadLocalDa <<
758 if (pdef == nullptr) <<
759 { <<
760 G4Exception("G4SPSEneDistribution::LogIn <<
761 "Event0302", FatalException, <<
762 "Error: particle not defined <<
763 } <<
764 else <<
765 { <<
766 // Apply Energy**2 = p**2c**2 + m0**2c** <<
767 // p should be entered as E/c i.e. witho <<
768 // being done - energy equivalent <<
769 <<
770 G4double mass = pdef->GetPDGMass(); <<
771 <<
772 // Convert point to energy unit and its <<
773 // <<
774 G4double total_energy; <<
775 for (count = 0; count < maxi; ++count) <<
776 { <<
777 total_energy = std::sqrt((Arb_x[count] <<
778 Arb_y[count] = Arb_y[count] * Arb_x[co <<
779 Arb_x[count] = total_energy - mass; // <<
780 } <<
781 } <<
782 } <<
783 <<
784 i = 1; <<
785 <<
786 if ( Arb_ezero != nullptr ) { delete [] Arb_ <<
787 if ( Arb_Const != nullptr ) { delete [] Arb_ <<
788 Arb_alpha = new G4double [1024]; <<
789 Arb_Const = new G4double [1024]; <<
790 Arb_alpha_Const_flag = true; <<
791 <<
792 Arb_alpha[0] = 0.; <<
793 Arb_Const[0] = 0.; <<
794 Area_seg[0] = 0.; <<
795 Arb_Cum_Area[0] = 0.; <<
796 if (Arb_x[0] <= 0. || Arb_y[0] <= 0.) <<
797 { <<
798 G4cout << "You should not use log interpol <<
799 << G4endl; <<
800 G4cout << "These will be changed to 1e-20, <<
801 << G4endl; <<
802 if (Arb_x[0] <= 0.) <<
803 { <<
804 Arb_x[0] = 1e-20; <<
805 } <<
806 if (Arb_y[0] <= 0.) <<
807 { <<
808 Arb_y[0] = 1e-20; <<
809 } <<
810 } <<
811 <<
812 G4double alp; <<
813 while (i < maxi) <<
814 { <<
815 // In case points are negative or zero <<
816 // <<
817 if (Arb_x[i] <= 0. || Arb_y[i] <= 0.) <<
818 { <<
819 G4cout << "You should not use log interp <<
820 << G4endl; <<
821 G4cout << "These will be changed to 1e-2 <<
822 << G4endl; <<
823 if (Arb_x[i] <= 0.) <<
824 { <<
825 Arb_x[i] = 1e-20; <<
826 } <<
827 if (Arb_y[i] <= 0.) <<
828 { <<
829 Arb_y[i] = 1e-20; <<
830 } <<
831 } <<
832 <<
833 Arb_alpha[i] = (std::log10(Arb_y[i]) - std <<
834 / (std::log10(Arb_x[i]) - std <<
835 Arb_Const[i] = Arb_y[i] / (std::pow(Arb_x[ <<
836 alp = Arb_alpha[i] + 1; <<
837 if (alp == 0.) <<
838 { <<
839 Area_seg[i] = Arb_Const[i] <<
840 * (std::log(Arb_x[i]) - std: <<
841 } <<
842 else <<
843 { <<
844 Area_seg[i] = (Arb_Const[i] / alp) <<
845 * (std::pow(Arb_x[i], alp) - <<
846 } <<
847 sum = sum + Area_seg[i]; <<
848 Arb_Cum_Area[i] = Arb_Cum_Area[i - 1] + Ar <<
849 if (verbosityLevel == 2) <<
850 { <<
851 G4cout << Arb_alpha[i] << Arb_Const[i] < <<
852 } <<
853 ++i; <<
854 } <<
855 <<
856 i = 0; <<
857 while (i < maxi) <<
858 { <<
859 Arb_Cum_Area[i] = Arb_Cum_Area[i] / sum; <<
860 IPDFArbEnergyH.InsertValues(Arb_x[i], Arb_ <<
861 ++i; <<
862 } <<
863 <<
864 // Now scale the ArbEnergyH, needed by Proba <<
865 // <<
866 ArbEnergyH.ScaleVector(1., 1./sum); <<
867 <<
868 if (verbosityLevel >= 1) <<
869 { <<
870 G4cout << "Leaving LogInterpolation " << G <<
871 } <<
872 } <<
873 <<
874 void G4SPSEneDistribution::ExpInterpolation() <<
875 { <<
876 // Interpolation based on Exponential equati <<
877 // Generate equations of line segments <<
878 // y = Ae**-(x/e0) => ln y = -x/e0 + lnA <<
879 // Find area under line segments <<
880 // Create normalised, cumulative array Arb_C <<
881 <<
882 G4double Area_seg[1024]; // Stores area unde <<
883 G4double sum = 0., Arb_x[1024]={0.}, Arb_y[1 <<
884 std::size_t i, count; <<
885 std::size_t maxi = ArbEnergyH.GetVectorLengt <<
886 for (i = 0; i < maxi; ++i) <<
887 { <<
888 Arb_x[i] = ArbEnergyH.GetLowEdgeEnergy(i); <<
889 Arb_y[i] = ArbEnergyH(i); <<
890 } <<
891 <<
892 // Points are now in x,y arrays. If the spec <<
893 // made differential and if momentum it has <<
894 <<
895 if (!DiffSpec) <<
896 { <<
897 // Converts integral point-wise spectra to <<
898 // <<
899 for (count = 0; count < maxi - 1; ++count) <<
900 { <<
901 Arb_y[count] = (Arb_y[count] - Arb_y[cou <<
902 / (Arb_x[count + 1] - Arb_x <<
903 } <<
904 --maxi; <<
905 } <<
906 <<
907 if (!EnergySpec) <<
908 { <<
909 // Change currently stored values (emin et <<
910 // to energies <<
911 // <<
912 G4ParticleDefinition* pdef = threadLocalDa <<
913 if (pdef == nullptr) <<
914 { <<
915 G4Exception("G4SPSEneDistribution::ExpIn <<
916 "Event0302", FatalException, <<
917 "Error: particle not defined <<
918 } <<
919 else <<
920 { <<
921 // Apply Energy**2 = p**2c**2 + m0**2c** <<
922 // p should be entered as E/c i.e. witho <<
923 // being done - energy equivalent <<
924 <<
925 G4double mass = pdef->GetPDGMass(); <<
926 <<
927 // Convert point to energy unit and its <<
928 // <<
929 G4double total_energy; <<
930 for (count = 0; count < maxi; ++count) <<
931 { <<
932 total_energy = std::sqrt((Arb_x[count] <<
933 Arb_y[count] = Arb_y[count] * Arb_x[co <<
934 Arb_x[count] = total_energy - mass; // <<
935 } <<
936 } <<
937 } <<
938 <<
939 i = 1; <<
940 <<
941 if ( Arb_ezero != nullptr ) { delete[] Arb_e <<
942 if ( Arb_Const != nullptr ) { delete[] Arb_C <<
943 Arb_ezero = new G4double [1024]; <<
944 Arb_Const = new G4double [1024]; <<
945 Arb_ezero_flag = true; <<
946 <<
947 Arb_ezero[0] = 0.; <<
948 Arb_Const[0] = 0.; <<
949 Area_seg[0] = 0.; <<
950 Arb_Cum_Area[0] = 0.; <<
951 while (i < maxi) <<
952 { <<
953 G4double test = std::log(Arb_y[i]) - std:: <<
954 if (test > 0. || test < 0.) <<
955 { <<
956 Arb_ezero[i] = -(Arb_x[i] - Arb_x[i - 1] <<
957 / (std::log(Arb_y[i]) - std <<
958 Arb_Const[i] = Arb_y[i] / (std::exp(-Arb <<
959 Area_seg[i] = -(Arb_Const[i] * Arb_ezero <<
960 * (std::exp(-Arb_x[i] / Arb_ <<
961 - std::exp(-Arb_x[i - 1] / <<
962 } <<
963 else <<
964 { <<
965 G4Exception("G4SPSEneDistribution::ExpIn <<
966 "Event0302", JustWarning, <<
967 "Flat line segment: problem, <<
968 G4cout << "Flat line segment: problem" < <<
969 Arb_ezero[i] = 0.; <<
970 Arb_Const[i] = 0.; <<
971 Area_seg[i] = 0.; <<
972 } <<
973 sum = sum + Area_seg[i]; <<
974 Arb_Cum_Area[i] = Arb_Cum_Area[i - 1] + Ar <<
975 if (verbosityLevel == 2) <<
976 { <<
977 G4cout << Arb_ezero[i] << Arb_Const[i] < <<
978 } <<
979 ++i; <<
980 } <<
981 <<
982 i = 0; <<
983 while (i < maxi) <<
984 { <<
985 Arb_Cum_Area[i] = Arb_Cum_Area[i] / sum; <<
986 IPDFArbEnergyH.InsertValues(Arb_x[i], Arb_ <<
987 ++i; <<
988 } <<
989 <<
990 // Now scale the ArbEnergyH, needed by Proba <<
991 // <<
992 ArbEnergyH.ScaleVector(1., 1./sum); <<
993 <<
994 if (verbosityLevel >= 1) <<
995 { <<
996 G4cout << "Leaving ExpInterpolation " << G <<
997 } <<
998 } <<
999 <<
1000 void G4SPSEneDistribution::SplineInterpolatio <<
1001 { <<
1002 // Interpolation using Splines. <<
1003 // Create Normalised arrays, make x 0->1 an <<
1004 // <<
1005 // Current method based on the above will n <<
1006 // New method is implemented below. <<
1007 609
1008 G4double sum, Arb_x[1024]={0.}, Arb_y[1024] << 610 G4double sum, Arb_x[1024], Arb_y[1024], Arb_Cum_Area[1024];
1009 std::size_t i, count; << 611 G4int i, count;
1010 std::size_t maxi = ArbEnergyH.GetVectorLeng <<
1011 <<
1012 for (i = 0; i < maxi; ++i) <<
1013 { <<
1014 Arb_x[i] = ArbEnergyH.GetLowEdgeEnergy(i) <<
1015 Arb_y[i] = ArbEnergyH(i); <<
1016 } <<
1017 <<
1018 // Points are now in x,y arrays. If the spe <<
1019 // made differential and if momentum it has <<
1020 <<
1021 if (!DiffSpec) <<
1022 { <<
1023 // Converts integral point-wise spectra t <<
1024 // <<
1025 for (count = 0; count < maxi - 1; ++count <<
1026 { <<
1027 Arb_y[count] = (Arb_y[count] - Arb_y[co <<
1028 / (Arb_x[count + 1] - Arb_ <<
1029 } <<
1030 --maxi; <<
1031 } <<
1032 <<
1033 if (!EnergySpec) <<
1034 { <<
1035 // Change currently stored values (emin e <<
1036 // to energies <<
1037 // <<
1038 G4ParticleDefinition* pdef = threadLocalD <<
1039 if (pdef == nullptr) <<
1040 { <<
1041 G4Exception("G4SPSEneDistribution::Spli <<
1042 "Event0302", FatalException <<
1043 "Error: particle not define <<
1044 } <<
1045 else <<
1046 { <<
1047 // Apply Energy**2 = p**2c**2 + m0**2c* <<
1048 // p should be entered as E/c i.e. with <<
1049 // being done - energy equivalent <<
1050 <<
1051 G4double mass = pdef->GetPDGMass(); <<
1052 <<
1053 // Convert point to energy unit and its <<
1054 // <<
1055 G4double total_energy; <<
1056 for (count = 0; count < maxi; ++count) <<
1057 { <<
1058 total_energy = std::sqrt((Arb_x[count <<
1059 Arb_y[count] = Arb_y[count] * Arb_x[c <<
1060 Arb_x[count] = total_energy - mass; / <<
1061 } <<
1062 } <<
1063 } <<
1064 <<
1065 i = 1; <<
1066 Arb_Cum_Area[0] = 0.; <<
1067 sum = 0.; <<
1068 Splinetemp = new G4DataInterpolation(Arb_x, <<
1069 G4double ei[101], prob[101]; <<
1070 for (auto & it : SplineInt) <<
1071 { <<
1072 delete it; <<
1073 it = nullptr; <<
1074 } <<
1075 SplineInt.clear(); <<
1076 SplineInt.resize(1024,nullptr); <<
1077 while (i < maxi) <<
1078 { <<
1079 // 100 step per segment for the integrati <<
1080 <<
1081 G4double de = (Arb_x[i] - Arb_x[i - 1])/1 <<
1082 G4double area = 0.; <<
1083 <<
1084 for (count = 0; count < 101; ++count) <<
1085 { <<
1086 ei[count] = Arb_x[i - 1] + de*count ; <<
1087 prob[count] = Splinetemp->CubicSplineI <<
1088 if (prob[count] < 0.) <<
1089 { <<
1090 G4ExceptionDescription ED; <<
1091 ED << "Warning: G4DataInterpolation r <<
1092 << " " << ei[count] << G4endl; <<
1093 G4Exception("G4SPSEneDistribution::Sp <<
1094 FatalException, ED); <<
1095 } <<
1096 area += prob[count]*de; <<
1097 } <<
1098 Arb_Cum_Area[i] = Arb_Cum_Area[i - 1] + a <<
1099 sum += area; <<
1100 <<
1101 prob[0] = prob[0]/(area/de); <<
1102 for (count = 1; count < 100; ++count) <<
1103 { <<
1104 prob[count] = prob[count-1] + prob[coun <<
1105 } <<
1106 <<
1107 SplineInt[i] = new G4DataInterpolation(pr <<
1108 <<
1109 // NOTE: i starts from 1! <<
1110 // <<
1111 ++i; <<
1112 } <<
1113 <<
1114 i = 0; <<
1115 while (i < maxi) <<
1116 { <<
1117 Arb_Cum_Area[i] = Arb_Cum_Area[i] / sum; <<
1118 IPDFArbEnergyH.InsertValues(Arb_x[i], Arb <<
1119 ++i; <<
1120 } <<
1121 <<
1122 // Now scale the ArbEnergyH, needed by Prob <<
1123 // <<
1124 ArbEnergyH.ScaleVector(1., 1./sum); <<
1125 <<
1126 if (verbosityLevel > 0) <<
1127 { <<
1128 G4cout << "Leaving SplineInterpolation " <<
1129 } <<
1130 } <<
1131 <<
1132 void G4SPSEneDistribution::GenerateMonoEnerge <<
1133 { <<
1134 // Method to generate MonoEnergetic particl <<
1135 <<
1136 threadLocalData.Get().particle_energy = Mon <<
1137 } <<
1138 <<
1139 void G4SPSEneDistribution::GenerateGaussEnerg <<
1140 { <<
1141 // Method to generate Gaussian particles <<
1142 <<
1143 G4double ene = G4RandGauss::shoot(MonoEnerg <<
1144 if (ene < 0) ene = 0.; <<
1145 threadLocalData.Get().particle_energy = ene <<
1146 } <<
1147 <<
1148 void G4SPSEneDistribution::GenerateLinearEner <<
1149 { <<
1150 G4double rndm; <<
1151 threadLocal_t& params = threadLocalData.Get <<
1152 G4double emaxsq = std::pow(params.Emax, 2.) <<
1153 G4double eminsq = std::pow(params.Emin, 2.) <<
1154 G4double intersq = std::pow(params.cept, 2. <<
1155 <<
1156 if (bArb) rndm = G4UniformRand(); <<
1157 else rndm = eneRndm->GenRandEnergy(); <<
1158 <<
1159 G4double bracket = ((params.grad / 2.) <<
1160 * (emaxsq - eminsq) <<
1161 + params.cept * (params.Em <<
1162 bracket = bracket * rndm; <<
1163 bracket = bracket + (params.grad / 2.) * em <<
1164 <<
1165 // Now have a quad of form m/2 E**2 + cE - <<
1166 // <<
1167 bracket = -bracket; <<
1168 <<
1169 if (params.grad != 0.) <<
1170 { <<
1171 G4double sqbrack = (intersq - 4 * (params <<
1172 sqbrack = std::sqrt(sqbrack); <<
1173 G4double root1 = -params.cept + sqbrack; <<
1174 root1 = root1 / (2. * (params.grad / 2.)) <<
1175 <<
1176 G4double root2 = -params.cept - sqbrack; <<
1177 root2 = root2 / (2. * (params.grad / 2.)) <<
1178 <<
1179 if (root1 > params.Emin && root1 < params <<
1180 { <<
1181 params.particle_energy = root1; <<
1182 } <<
1183 if (root2 > params.Emin && root2 < params <<
1184 { <<
1185 params.particle_energy = root2; <<
1186 } <<
1187 } <<
1188 else if (params.grad == 0.) <<
1189 { <<
1190 // have equation of form cE - bracket =0 <<
1191 // <<
1192 params.particle_energy = bracket / params <<
1193 } <<
1194 <<
1195 if (params.particle_energy < 0.) <<
1196 { <<
1197 params.particle_energy = -params.particle <<
1198 } <<
1199 <<
1200 if (verbosityLevel >= 1) <<
1201 { <<
1202 G4cout << "Energy is " << params.particle <<
1203 } <<
1204 } <<
1205 <<
1206 void G4SPSEneDistribution::GeneratePowEnergie <<
1207 { <<
1208 // Method to generate particle energies dis <<
1209 <<
1210 G4double rndm; <<
1211 G4double emina, emaxa; <<
1212 <<
1213 threadLocal_t& params = threadLocalData.Get <<
1214 <<
1215 emina = std::pow(params.Emin, params.alpha <<
1216 emaxa = std::pow(params.Emax, params.alpha <<
1217 <<
1218 if (bArb) rndm = G4UniformRand(); <<
1219 else rndm = eneRndm->GenRandEnergy(); <<
1220 <<
1221 if (params.alpha != -1.) <<
1222 { <<
1223 G4double ene = ((rndm * (emaxa - emina)) <<
1224 ene = std::pow(ene, (1. / (params.alpha + <<
1225 params.particle_energy = ene; <<
1226 } <<
1227 else <<
1228 { <<
1229 G4double ene = (std::log(params.Emin) <<
1230 + rndm * (std::log(params.Em <<
1231 params.particle_energy = std::exp(ene); <<
1232 } <<
1233 if (verbosityLevel >= 1) <<
1234 { <<
1235 G4cout << "Energy is " << params.particle <<
1236 } <<
1237 } <<
1238 <<
1239 void G4SPSEneDistribution::GenerateCPowEnergi <<
1240 { <<
1241 // Method to generate particle energies dis <<
1242 // cutoff power-law distribution <<
1243 // <<
1244 // CP_x holds Energies, and CPHist holds th <<
1245 // binary search to find correct bin then l <<
1246 // Use the earlier defined histogram + Rand <<
1247 // random numbers following the histos dist <<
1248 <<
1249 G4double rndm = eneRndm->GenRandEnergy(); <<
1250 G4int nabove = 10001, nbelow = 0, middle; <<
1251 <<
1252 G4AutoLock l(&mutex); <<
1253 G4bool done = CPhistCalcd; <<
1254 l.unlock(); <<
1255 <<
1256 if(!done) <<
1257 { <<
1258 Calculate(); //This is has a lock inside, <<
1259 l.lock(); <<
1260 CPhistCalcd = true; <<
1261 l.unlock(); <<
1262 } <<
1263 <<
1264 // Binary search to find bin that rndm is i <<
1265 // <<
1266 while (nabove - nbelow > 1) <<
1267 { <<
1268 middle = (nabove + nbelow) / 2; <<
1269 if (rndm == CPHist->at(middle)) <<
1270 { <<
1271 break; <<
1272 } <<
1273 if (rndm < CPHist->at(middle)) <<
1274 { <<
1275 nabove = middle; <<
1276 } <<
1277 else <<
1278 { <<
1279 nbelow = middle; <<
1280 } <<
1281 } <<
1282 <<
1283 // Now interpolate in that bin to find the <<
1284 // <<
1285 G4double x1, x2, y1, y2, t, q; <<
1286 x1 = CP_x->at(nbelow); <<
1287 if(nbelow+1 == static_cast<G4int>(CP_x->siz <<
1288 { <<
1289 x2 = CP_x->back(); <<
1290 } <<
1291 else <<
1292 { <<
1293 x2 = CP_x->at(nbelow + 1); <<
1294 } <<
1295 y1 = CPHist->at(nbelow); <<
1296 if(nbelow+1 == static_cast<G4int>(CPHist->s <<
1297 { <<
1298 G4cout << CPHist->back() << G4endl; <<
1299 y2 = CPHist->back(); <<
1300 } <<
1301 else <<
1302 { <<
1303 y2 = CPHist->at(nbelow + 1); <<
1304 } <<
1305 t = (y2 - y1) / (x2 - x1); <<
1306 q = y1 - t * x1; <<
1307 <<
1308 threadLocalData.Get().particle_energy = (rn <<
1309 <<
1310 if (verbosityLevel >= 1) <<
1311 { <<
1312 G4cout << "Energy is " << threadLocalData <<
1313 } <<
1314 } <<
1315 <<
1316 void G4SPSEneDistribution::GenerateBiasPowEne <<
1317 { <<
1318 // Method to generate particle energies dis <<
1319 // in biased power-law and calculate its we <<
1320 <<
1321 threadLocal_t& params = threadLocalData.Get <<
1322 <<
1323 G4double rndm; <<
1324 G4double emina, emaxa, emin, emax; <<
1325 <<
1326 G4double normal = 1.; <<
1327 <<
1328 emin = params.Emin; <<
1329 emax = params.Emax; <<
1330 <<
1331 rndm = eneRndm->GenRandEnergy(); <<
1332 <<
1333 if (biasalpha != -1.) <<
1334 { <<
1335 emina = std::pow(emin, biasalpha + 1); <<
1336 emaxa = std::pow(emax, biasalpha + 1); <<
1337 G4double ee = ((rndm * (emaxa - emina)) + <<
1338 params.particle_energy = std::pow(ee, (1. <<
1339 normal = 1./(1+biasalpha) * (emaxa - emin <<
1340 } <<
1341 else <<
1342 { <<
1343 G4double ee = (std::log(emin) + rndm * (s <<
1344 params.particle_energy = std::exp(ee); <<
1345 normal = std::log(emax) - std::log(emin); <<
1346 } <<
1347 params.weight = GetProbability(params.parti <<
1348 / (std::pow(params.particle_e <<
1349 <<
1350 if (verbosityLevel >= 1) <<
1351 { <<
1352 G4cout << "Energy is " << params.particle <<
1353 } <<
1354 } <<
1355 <<
1356 void G4SPSEneDistribution::GenerateExpEnergie <<
1357 { <<
1358 // Method to generate particle energies dis <<
1359 // to an exponential curve <<
1360 <<
1361 G4double rndm; <<
1362 <<
1363 if (bArb) rndm = G4UniformRand(); <<
1364 else rndm = eneRndm->GenRandEnergy(); <<
1365 <<
1366 threadLocal_t& params = threadLocalData.Get <<
1367 params.particle_energy = -params.Ezero <<
1368 * (std::log(rndm * ( <<
1369 <<
1370 - <<
1371 <<
1372 + std::exp <<
1373 if (verbosityLevel >= 1) <<
1374 { <<
1375 G4cout << "Energy is " << params.particle <<
1376 } <<
1377 } <<
1378 <<
1379 void G4SPSEneDistribution::GenerateBremEnergi <<
1380 { <<
1381 // Method to generate particle energies dis <<
1382 // to a Bremstrahlung equation of the form <<
1383 // I = const*((kT)**1/2)*E*(e**(-E/kT)) <<
1384 <<
1385 G4double rndm = eneRndm->GenRandEnergy(); <<
1386 G4double expmax, expmin, k; <<
1387 <<
1388 k = 8.6181e-11; // Boltzmann's const in MeV <<
1389 G4double ksq = std::pow(k, 2.); // k square <<
1390 G4double Tsq = std::pow(Temp, 2.); // Temp <<
1391 <<
1392 threadLocal_t& params = threadLocalData.Get <<
1393 <<
1394 expmax = std::exp(-params.Emax / (k * Temp) <<
1395 expmin = std::exp(-params.Emin / (k * Temp) <<
1396 <<
1397 // If either expmax or expmin are zero then <<
1398 // Most probably this will be because T is <<
1399 <<
1400 if (expmax == 0.) <<
1401 { <<
1402 G4Exception("G4SPSEneDistribution::Genera <<
1403 "Event0302", FatalException, <<
1404 "*****EXPMAX=0. Choose differ <<
1405 } <<
1406 if (expmin == 0.) <<
1407 { <<
1408 G4Exception("G4SPSEneDistribution::Genera <<
1409 "Event0302", FatalException, <<
1410 "*****EXPMIN=0. Choose differ <<
1411 } <<
1412 <<
1413 G4double tempvar = rndm * ((-k) * Temp * (p <<
1414 - p <<
1415 - (ksq * Tsq * (exp <<
1416 <<
1417 G4double bigc = (tempvar - k * Temp * param <<
1418 - ksq * Tsq * expmin) / (-k <<
1419 <<
1420 // This gives an equation of form: Ee(-E/kT <<
1421 // Solve this iteratively, step from Emin t <<
1422 // and take the best solution. <<
1423 <<
1424 G4double erange = params.Emax - params.Emin <<
1425 G4double steps = erange / 1000.; <<
1426 G4int i; <<
1427 G4double etest, diff, err = 100000.; <<
1428 <<
1429 for (i = 1; i < 1000; ++i) <<
1430 { <<
1431 etest = params.Emin + (i - 1) * steps; <<
1432 diff = etest * (std::exp(-etest / (k * Te <<
1433 + k * Temp * (std::exp(-etest / (k * <<
1434 <<
1435 if (diff < 0.) <<
1436 { <<
1437 diff = -diff; <<
1438 } <<
1439 <<
1440 if (diff < err) <<
1441 { <<
1442 err = diff; <<
1443 params.particle_energy = etest; <<
1444 } <<
1445 } <<
1446 if (verbosityLevel >= 1) <<
1447 { <<
1448 G4cout << "Energy is " << params.particle <<
1449 } <<
1450 } <<
1451 <<
1452 void G4SPSEneDistribution::GenerateBbodyEnerg <<
1453 { <<
1454 // BBody_x holds Energies, and BBHist holds <<
1455 // Binary search to find correct bin then l <<
1456 // Use the earlier defined histogram + Rand <<
1457 // random numbers following the histos dist <<
1458 <<
1459 G4double rndm = eneRndm->GenRandEnergy(); <<
1460 G4int nabove = 10001, nbelow = 0, middle; <<
1461 <<
1462 G4AutoLock l(&mutex); <<
1463 G4bool done = BBhistCalcd; <<
1464 l.unlock(); <<
1465 <<
1466 if(!done) <<
1467 { <<
1468 Calculate(); //This is has a lock inside, <<
1469 l.lock(); <<
1470 BBhistCalcd = true; <<
1471 l.unlock(); <<
1472 } <<
1473 <<
1474 // Binary search to find bin that rndm is i <<
1475 // <<
1476 while (nabove - nbelow > 1) <<
1477 { <<
1478 middle = (nabove + nbelow) / 2; <<
1479 if (rndm == BBHist->at(middle)) <<
1480 { <<
1481 break; <<
1482 } <<
1483 if (rndm < BBHist->at(middle)) <<
1484 { <<
1485 nabove = middle; <<
1486 } <<
1487 else <<
1488 { <<
1489 nbelow = middle; <<
1490 } <<
1491 } <<
1492 <<
1493 // Now interpolate in that bin to find the <<
1494 // <<
1495 G4double x1, x2, y1, y2, t, q; <<
1496 x1 = Bbody_x->at(nbelow); <<
1497 <<
1498 if(nbelow+1 == static_cast<G4int>(Bbody_x-> <<
1499 { <<
1500 x2 = Bbody_x->back(); <<
1501 } <<
1502 else <<
1503 { <<
1504 x2 = Bbody_x->at(nbelow + 1); <<
1505 } <<
1506 y1 = BBHist->at(nbelow); <<
1507 if(nbelow+1 == static_cast<G4int>(BBHist->s <<
1508 { <<
1509 G4cout << BBHist->back() << G4endl; <<
1510 y2 = BBHist->back(); <<
1511 } <<
1512 else <<
1513 { <<
1514 y2 = BBHist->at(nbelow + 1); <<
1515 } <<
1516 t = (y2 - y1) / (x2 - x1); <<
1517 q = y1 - t * x1; <<
1518 <<
1519 threadLocalData.Get().particle_energy = (rn <<
1520 <<
1521 if (verbosityLevel >= 1) <<
1522 { <<
1523 G4cout << "Energy is " << threadLocalData <<
1524 } <<
1525 } <<
1526 <<
1527 void G4SPSEneDistribution::GenerateCdgEnergie <<
1528 { <<
1529 // Generate random numbers, compare with va <<
1530 // to find appropriate part of spectrum and <<
1531 // generate energy in the usual inversion w <<
1532 <<
1533 G4double rndm, rndm2; <<
1534 G4double ene_line[3]={0,0,0}; <<
1535 G4double omalpha[2]={0,0}; <<
1536 threadLocal_t& params = threadLocalData.Get <<
1537 if (params.Emin < 18 * keV && params.Emax < <<
1538 { <<
1539 omalpha[0] = 1. - 1.4; <<
1540 ene_line[0] = params.Emin; <<
1541 ene_line[1] = params.Emax; <<
1542 } <<
1543 if (params.Emin < 18 * keV && params.Emax > <<
1544 { <<
1545 omalpha[0] = 1. - 1.4; <<
1546 omalpha[1] = 1. - 2.3; <<
1547 ene_line[0] = params.Emin; <<
1548 ene_line[1] = 18. * keV; <<
1549 ene_line[2] = params.Emax; <<
1550 } <<
1551 if (params.Emin > 18 * keV) <<
1552 { <<
1553 omalpha[0] = 1. - 2.3; <<
1554 ene_line[0] = params.Emin; <<
1555 ene_line[1] = params.Emax; <<
1556 } <<
1557 rndm = eneRndm->GenRandEnergy(); <<
1558 rndm2 = eneRndm->GenRandEnergy(); <<
1559 <<
1560 G4int i = 0; <<
1561 while (rndm >= CDGhist[i]) <<
1562 { <<
1563 ++i; <<
1564 } <<
1565 <<
1566 // Generate final energy <<
1567 // <<
1568 G4double ene = (std::pow(ene_line[i - 1], o <<
1569 + (std::pow(ene_line[i], omalp <<
1570 - std::pow(ene_line[i - 1], o <<
1571 params.particle_energy = std::pow(ene, (1. <<
1572 <<
1573 if (verbosityLevel >= 1) <<
1574 { <<
1575 G4cout << "Energy is " << params.particle <<
1576 } <<
1577 } <<
1578 <<
1579 void G4SPSEneDistribution::GenUserHistEnergie <<
1580 { <<
1581 // Histograms are DIFFERENTIAL <<
1582 <<
1583 G4AutoLock l(&mutex); <<
1584 <<
1585 if (!IPDFEnergyExist) <<
1586 { <<
1587 std::size_t ii; <<
1588 std::size_t maxbin = UDefEnergyH.GetVecto <<
1589 G4double bins[1024], vals[1024], sum; <<
1590 for ( ii = 0 ; ii<1024 ; ++ii ) { bins[ii <<
1591 sum = 0.; <<
1592 <<
1593 if ( (!EnergySpec) <<
1594 && (threadLocalData.Get().particle_defi <<
1595 { <<
1596 G4Exception("G4SPSEneDistribution::GenU <<
1597 "Event0302", FatalException <<
1598 "Error: particle definition <<
1599 } <<
1600 <<
1601 if (maxbin > 1024) <<
1602 { <<
1603 G4Exception("G4SPSEneDistribution::GenU <<
1604 "Event0302", JustWarning, <<
1605 "Maxbin>1024\n Setting maxbi <<
1606 maxbin = 1024; <<
1607 } <<
1608 <<
1609 if (!DiffSpec) <<
1610 { <<
1611 G4cout << "Histograms are Differential! <<
1612 } <<
1613 else <<
1614 { <<
1615 bins[0] = UDefEnergyH.GetLowEdgeEnergy( <<
1616 vals[0] = UDefEnergyH(0); <<
1617 sum = vals[0]; <<
1618 for (ii = 1; ii < maxbin; ++ii) <<
1619 { <<
1620 bins[ii] = UDefEnergyH.GetLowEdgeEner <<
1621 vals[ii] = UDefEnergyH(ii) + vals[ii <<
1622 sum = sum + UDefEnergyH(ii); <<
1623 } <<
1624 } <<
1625 <<
1626 if (!EnergySpec) <<
1627 { <<
1628 G4double mass = threadLocalData.Get().p <<
1629 <<
1630 // Multiply the function (vals) up by t <<
1631 // to make the function counts/s (i.e. <<
1632 <<
1633 for (ii = 1; ii < maxbin; ++ii) <<
1634 { <<
1635 vals[ii] = vals[ii] * (bins[ii] - bin <<
1636 } <<
1637 <<
1638 // Put energy bins into new histo, plus <<
1639 // to make evals counts/s/energy <<
1640 // <<
1641 for (ii = 0; ii < maxbin; ++ii) <<
1642 { <<
1643 // kinetic energy <<
1644 // <<
1645 bins[ii] = std::sqrt((bins[ii]*bins[i <<
1646 } <<
1647 for (ii = 1; ii < maxbin; ++ii) <<
1648 { <<
1649 vals[ii] = vals[ii] / (bins[ii] - bin <<
1650 } <<
1651 sum = vals[maxbin - 1]; <<
1652 vals[0] = 0.; <<
1653 } <<
1654 for (ii = 0; ii < maxbin; ++ii) <<
1655 { <<
1656 vals[ii] = vals[ii] / sum; <<
1657 IPDFEnergyH.InsertValues(bins[ii], vals <<
1658 } <<
1659 <<
1660 IPDFEnergyExist = true; <<
1661 if (verbosityLevel > 1) <<
1662 { <<
1663 IPDFEnergyH.DumpValues(); <<
1664 } <<
1665 } <<
1666 l.unlock(); <<
1667 <<
1668 // IPDF has been create so carry on <<
1669 // <<
1670 G4double rndm = eneRndm->GenRandEnergy(); <<
1671 threadLocalData.Get().particle_energy= IPDF <<
1672 <<
1673 if (verbosityLevel >= 1) <<
1674 { <<
1675 G4cout << "Energy is " << particle_energy <<
1676 } <<
1677 } <<
1678 <<
1679 G4double G4SPSEneDistribution::GetArbEneWeigh <<
1680 { <<
1681 auto nbelow = IPDFArbEnergyH.FindBin(ene,(I <<
1682 G4double wei = 0.; <<
1683 if(IntType=="Lin") <<
1684 { <<
1685 // note: grad[i] and cept[i] are calculat <<
1686 auto gr = Arb_grad[nbelow + 1]; <<
1687 auto ce = Arb_cept[nbelow + 1]; <<
1688 wei = ene*gr + ce; <<
1689 } <<
1690 else if(IntType=="Log") <<
1691 { <<
1692 auto alp = Arb_alpha[nbelow + 1]; <<
1693 auto cns = Arb_Const[nbelow + 1]; <<
1694 wei = cns * std::pow(ene,alp); <<
1695 } <<
1696 else if(IntType=="Exp") <<
1697 { <<
1698 auto e0 = Arb_ezero[nbelow + 1]; <<
1699 auto cns = Arb_Const[nbelow + 1]; <<
1700 wei = cns * std::exp(-ene/e0); <<
1701 } <<
1702 else if(IntType=="Spline") <<
1703 { <<
1704 wei = SplineInt[nbelow+1]->CubicSplineInt <<
1705 } <<
1706 return wei; <<
1707 } <<
1708 <<
1709 void G4SPSEneDistribution::GenArbPointEnergie <<
1710 { <<
1711 if (verbosityLevel > 0) <<
1712 { <<
1713 G4cout << "In GenArbPointEnergies" << G4e <<
1714 } <<
1715 <<
1716 G4double rndm = eneRndm->GenRandEnergy(); <<
1717 <<
1718 // Find the Bin, have x, y, no of points, a <<
1719 // <<
1720 std::size_t nabove = IPDFArbEnergyH.GetVect <<
1721 <<
1722 // Binary search to find bin that rndm is i <<
1723 // <<
1724 while (nabove - nbelow > 1) <<
1725 { <<
1726 middle = (nabove + nbelow) / 2; <<
1727 if (rndm == IPDFArbEnergyH(middle)) <<
1728 { <<
1729 break; <<
1730 } <<
1731 if (rndm < IPDFArbEnergyH(middle)) <<
1732 { <<
1733 nabove = middle; <<
1734 } <<
1735 else <<
1736 { <<
1737 nbelow = middle; <<
1738 } <<
1739 } <<
1740 threadLocal_t& params = threadLocalData.Get <<
1741 if (IntType == "Lin") <<
1742 { <<
1743 // Update thread-local copy of parameters <<
1744 // <<
1745 params.Emax = IPDFArbEnergyH.GetLowEdgeEn <<
1746 params.Emin = IPDFArbEnergyH.GetLowEdgeEn <<
1747 params.grad = Arb_grad[nbelow + 1]; <<
1748 params.cept = Arb_cept[nbelow + 1]; <<
1749 GenerateLinearEnergies(true); <<
1750 } <<
1751 else if (IntType == "Log") <<
1752 { <<
1753 params.Emax = IPDFArbEnergyH.GetLowEdgeEn <<
1754 params.Emin = IPDFArbEnergyH.GetLowEdgeEn <<
1755 params.alpha = Arb_alpha[nbelow + 1]; <<
1756 GeneratePowEnergies(true); <<
1757 } <<
1758 else if (IntType == "Exp") <<
1759 { <<
1760 params.Emax = IPDFArbEnergyH.GetLowEdgeEn <<
1761 params.Emin = IPDFArbEnergyH.GetLowEdgeEn <<
1762 params.Ezero = Arb_ezero[nbelow + 1]; <<
1763 GenerateExpEnergies(true); <<
1764 } <<
1765 else if (IntType == "Spline") <<
1766 { <<
1767 params.Emax = IPDFArbEnergyH.GetLowEdgeEn <<
1768 params.Emin = IPDFArbEnergyH.GetLowEdgeEn <<
1769 params.particle_energy = -1e100; <<
1770 rndm = eneRndm->GenRandEnergy(); <<
1771 while (params.particle_energy < params.Em <<
1772 || params.particle_energy > params.Em <<
1773 { <<
1774 params.particle_energy = <<
1775 SplineInt[nbelow+1]->CubicSplineInter <<
1776 rndm = eneRndm->GenRandEnergy(); <<
1777 } <<
1778 if (verbosityLevel >= 1) <<
1779 { <<
1780 G4cout << "Energy is " << params.partic <<
1781 } <<
1782 } <<
1783 else <<
1784 { <<
1785 G4Exception("G4SPSEneDistribution::GenArb <<
1786 FatalException, "Error: IntTy <<
1787 } <<
1788 } <<
1789 <<
1790 void G4SPSEneDistribution::GenEpnHistEnergies <<
1791 { <<
1792 // Firstly convert to energy if not already <<
1793 <<
1794 G4AutoLock l(&mutex); <<
1795 <<
1796 if (Epnflag) // true means spectrum is epn <<
1797 { <<
1798 // Convert to energy by multiplying by A <<
1799 // <<
1800 ConvertEPNToEnergy(); <<
1801 } <<
1802 if (!IPDFEnergyExist) <<
1803 { <<
1804 // IPDF has not been created, so create i <<
1805 // <<
1806 G4double bins[1024], vals[1024], sum; <<
1807 std::size_t ii; <<
1808 std::size_t maxbin = UDefEnergyH.GetVecto <<
1809 bins[0] = UDefEnergyH.GetLowEdgeEnergy(0) <<
1810 vals[0] = UDefEnergyH(0); <<
1811 sum = vals[0]; <<
1812 for (ii = 1; ii < maxbin; ++ii) <<
1813 { <<
1814 bins[ii] = UDefEnergyH.GetLowEdgeEnergy <<
1815 vals[ii] = UDefEnergyH(ii) + vals[ii - <<
1816 sum = sum + UDefEnergyH(ii); <<
1817 } <<
1818 <<
1819 l.lock(); <<
1820 for (ii = 0; ii < maxbin; ++ii) <<
1821 { <<
1822 vals[ii] = vals[ii] / sum; <<
1823 IPDFEnergyH.InsertValues(bins[ii], vals <<
1824 } <<
1825 IPDFEnergyExist = true; <<
1826 <<
1827 } <<
1828 l.unlock(); <<
1829 612
1830 // IPDF has been create so carry on << 613 G4int maxi = ArbEnergyH.GetVectorLength();
1831 // << 614 for (i = 0; i < maxi; i++) {
1832 G4double rndm = eneRndm->GenRandEnergy(); << 615 Arb_x[i] = ArbEnergyH.GetLowEdgeEnergy(size_t(i));
1833 threadLocalData.Get().particle_energy = IPD << 616 Arb_y[i] = ArbEnergyH(size_t(i));
1834 << 617 }
1835 if (verbosityLevel >= 1) << 618 // Points are now in x,y arrays. If the spectrum is integral it has to be
1836 { << 619 // made differential and if momentum it has to be made energy.
1837 G4cout << "Energy is " << threadLocalData << 620 if (DiffSpec == false) {
1838 } << 621 // Converts integral point-wise spectra to Differential
1839 } << 622 for (count = 0; count < maxi - 1; count++) {
1840 << 623 Arb_y[count] = (Arb_y[count] - Arb_y[count + 1])
1841 void G4SPSEneDistribution::ConvertEPNToEnergy << 624 / (Arb_x[count + 1] - Arb_x[count]);
1842 { << 625 }
1843 // Use this before particle generation to c << 626 maxi--;
1844 // currently stored histogram from energy/n << 627 }
1845 << 628 //
1846 threadLocal_t& params = threadLocalData.Get << 629 if (EnergySpec == false) {
1847 if (params.particle_definition == nullptr) << 630 // change currently stored values (emin etc) which are actually momenta
1848 { << 631 // to energies.
1849 G4cout << "Error: particle not defined" < << 632 if (particle_definition == NULL)
1850 } << 633 G4cout << "Error: particle not defined" << G4endl;
1851 else << 634 else {
1852 { << 635 // Apply Energy**2 = p**2c**2 + m0**2c**4
1853 // Need to multiply histogram by the numb << 636 // p should be entered as E/c i.e. without the division by c
1854 // Baryon Number looks to hold the no. of << 637 // being done - energy equivalent.
1855 // << 638 G4double mass = particle_definition->GetPDGMass();
1856 G4int Bary = params.particle_definition-> << 639 // convert point to energy unit and its value to per energy unit
1857 << 640 G4double total_energy;
1858 // Change values in histogram, Read it ou << 641 for (count = 0; count < maxi; count++) {
1859 // << 642 total_energy = std::sqrt((Arb_x[count] * Arb_x[count]) + (mass
1860 std::size_t count, maxcount; << 643 * mass)); // total energy
1861 maxcount = EpnEnergyH.GetVectorLength(); << 644
1862 G4double ebins[1024], evals[1024]; << 645 Arb_y[count] = Arb_y[count] * Arb_x[count] / total_energy;
1863 if (maxcount > 1024) << 646 Arb_x[count] = total_energy - mass; // kinetic energy
1864 { << 647 }
1865 G4Exception("G4SPSEneDistribution::Conv << 648 }
1866 "gps001", JustWarning, << 649 }
1867 "Histogram contains more th << 650
1868 Those above 1024 will be i << 651 //
1869 maxcount = 1024; << 652 i = 1;
1870 } << 653 Arb_Cum_Area[0] = 0.;
1871 if (maxcount < 1) << 654 sum = 0.;
1872 { << 655 Splinetemp = new G4DataInterpolation(Arb_x, Arb_y, maxi, 0., 0.);
1873 G4Exception("G4SPSEneDistribution::Conv << 656 G4double ei[101],prob[101];
1874 "gps001", FatalException, << 657 while (i < maxi) {
1875 "Histogram contains less tha << 658 // 100 step per segment for the integration of area
1876 return; << 659 G4double de = (Arb_x[i] - Arb_x[i - 1])/100.;
1877 } << 660 G4double area = 0.;
1878 for (count = 0; count < maxcount; ++count << 661
1879 { << 662 for (count = 0; count < 101; count++) {
1880 // Read out << 663 ei[count] = Arb_x[i - 1] + de*count ;
1881 ebins[count] = EpnEnergyH.GetLowEdgeEne << 664 prob[count] = Splinetemp->CubicSplineInterpolation(ei[count]);
1882 evals[count] = EpnEnergyH(count); << 665 if (prob[count] < 0.) {
1883 } << 666 G4cout << "Warning: G4DataInterpolation returns value < 0 " << prob[count] <<" "<<ei[count]<< G4endl;
1884 << 667 G4Exception(" Please use an alternative method, e.g. Lin, for interpolation");
1885 // Multiply the channels by the nucleon n << 668 }
1886 // << 669 area += prob[count]*de;
1887 for (count = 0; count < maxcount; ++count << 670 }
1888 { << 671 Arb_Cum_Area[i] = Arb_Cum_Area[i - 1] + area;
1889 ebins[count] = ebins[count] * Bary; << 672 sum += area;
1890 } << 673
1891 << 674 prob[0] = prob[0]/(area/de);
1892 // Set Emin and Emax << 675 for (count = 1; count < 100; count++)
1893 // << 676 prob[count] = prob[count-1] + prob[count]/(area/de);
1894 params.Emin = ebins[0]; << 677
1895 if (maxcount > 1) << 678 SplineInt[i] = new G4DataInterpolation(prob, ei, 101, 0., 0.);
1896 { << 679 // note i start from 1!
1897 params.Emax = ebins[maxcount - 1]; << 680 i++;
1898 } << 681 }
1899 else << 682 i = 0;
1900 { << 683 while (i < maxi) {
1901 params.Emax = ebins[0]; << 684 Arb_Cum_Area[i] = Arb_Cum_Area[i] / sum; // normalisation
1902 } << 685 IPDFArbEnergyH.InsertValues(Arb_x[i], Arb_Cum_Area[i]);
1903 << 686 i++;
1904 // Put energy bins into new histogram - U << 687 }
1905 // << 688 // now scale the ArbEnergyH, needed by Probability()
1906 for (count = 0; count < maxcount; ++count << 689 ArbEnergyH.ScaleVector(1., 1./sum);
1907 { << 690
1908 UDefEnergyH.InsertValues(ebins[count], << 691 if (verbosityLevel > 0)
1909 } << 692 G4cout << "Leaving SplineInterpolation " << G4endl;
1910 Epnflag = false; // so that you dont repe << 693 }
1911 } << 694
1912 } << 695 void G4SPSEneDistribution::GenerateMonoEnergetic() {
1913 << 696 // Method to generate MonoEnergetic particles.
1914 void G4SPSEneDistribution::ReSetHist(const G4 << 697 particle_energy = MonoEnergy;
1915 { << 698 }
1916 G4AutoLock l(&mutex); << 699
1917 if (atype == "energy") << 700 void G4SPSEneDistribution::GenerateGaussEnergies() {
1918 { << 701 // Method to generate Gaussian particles.
1919 UDefEnergyH = IPDFEnergyH = ZeroPhysVecto << 702 particle_energy = G4RandGauss::shoot(MonoEnergy,SE);
1920 IPDFEnergyExist = false; << 703 if (particle_energy < 0) particle_energy = 0.;
1921 Emin = 0.; << 704 }
1922 Emax = 1e30; << 705
1923 } << 706 void G4SPSEneDistribution::GenerateLinearEnergies(G4bool bArb = false) {
1924 else if (atype == "arb") << 707 G4double rndm;
1925 { << 708 G4double emaxsq = std::pow(Emax, 2.); //Emax squared
1926 ArbEnergyH = IPDFArbEnergyH = ZeroPhysVec << 709 G4double eminsq = std::pow(Emin, 2.); //Emin squared
1927 IPDFArbExist = false; << 710 G4double intersq = std::pow(cept, 2.); //cept squared
1928 } << 711
1929 else if (atype == "epn") << 712 if (bArb)
1930 { << 713 rndm = G4UniformRand();
1931 UDefEnergyH = IPDFEnergyH = ZeroPhysVecto << 714 else
1932 IPDFEnergyExist = false; << 715 rndm = eneRndm->GenRandEnergy();
1933 EpnEnergyH = ZeroPhysVector; << 716
1934 } << 717 G4double bracket = ((grad / 2.) * (emaxsq - eminsq) + cept * (Emax - Emin));
1935 else << 718 bracket = bracket * rndm;
1936 { << 719 bracket = bracket + (grad / 2.) * eminsq + cept * Emin;
1937 G4cout << "Error, histtype not accepted " << 720 // Now have a quad of form m/2 E**2 + cE - bracket = 0
1938 } << 721 bracket = -bracket;
1939 } << 722 // G4cout << "BRACKET" << bracket << G4endl;
1940 << 723 if (grad != 0.) {
1941 G4double G4SPSEneDistribution::GenerateOne(G4 << 724 G4double sqbrack = (intersq - 4 * (grad / 2.) * (bracket));
1942 { << 725 // G4cout << "SQBRACK" << sqbrack << G4endl;
1943 // Copy global shared status to thread-loca << 726 sqbrack = std::sqrt(sqbrack);
1944 // << 727 G4double root1 = -cept + sqbrack;
1945 threadLocal_t& params = threadLocalData.Get << 728 root1 = root1 / (2. * (grad / 2.));
1946 params.particle_definition=a; << 729
1947 params.particle_energy=-1; << 730 G4double root2 = -cept - sqbrack;
1948 if(applyEvergyWeight) << 731 root2 = root2 / (2. * (grad / 2.));
1949 { << 732
1950 params.Emax = ArbEmax; << 733 // G4cout << root1 << " roots " << root2 << G4endl;
1951 params.Emin = ArbEmin; << 734
1952 } << 735 if (root1 > Emin && root1 < Emax)
1953 else << 736 particle_energy = root1;
1954 { << 737 if (root2 > Emin && root2 < Emax)
1955 params.Emax = Emax; << 738 particle_energy = root2;
1956 params.Emin = Emin; << 739 } else if (grad == 0.)
1957 } << 740 // have equation of form cE - bracket =0
1958 params.alpha = alpha; << 741 particle_energy = bracket / cept;
1959 params.Ezero = Ezero; << 742
1960 params.grad = grad; << 743 if (particle_energy < 0.)
1961 params.cept = cept; << 744 particle_energy = -particle_energy;
1962 params.weight = weight; << 745
1963 // particle_energy = -1.; << 746 if (verbosityLevel >= 1)
1964 << 747 G4cout << "Energy is " << particle_energy << G4endl;
1965 if((EnergyDisType == "Mono") && ((MonoEnerg << 748 }
1966 { << 749
1967 G4ExceptionDescription ed; << 750 void G4SPSEneDistribution::GeneratePowEnergies(G4bool bArb = false) {
1968 ed << "MonoEnergy " << G4BestUnit(MonoEne << 751 // Method to generate particle energies distributed as
1969 << " is outside of [Emin,Emax] = [" << 752 // a power-law
1970 << G4BestUnit(Emin,"Energy") << ", " << 753
1971 << G4BestUnit(Emax,"Energy") << ". Mon << 754 G4double rndm;
1972 G4Exception("G4SPSEneDistribution::Genera << 755 G4double emina, emaxa;
1973 "GPS0001", JustWarning, ed); << 756
1974 params.particle_energy=MonoEnergy; << 757 emina = std::pow(Emin, alpha + 1);
1975 return params.particle_energy; << 758 emaxa = std::pow(Emax, alpha + 1);
1976 } << 759
1977 while ( (EnergyDisType == "Arb") << 760 if (bArb)
1978 ? (params.particle_energy < ArbEmin << 761 rndm = G4UniformRand();
1979 || params.particle_energy > ArbEmax << 762 else
1980 : (params.particle_energy < params. << 763 rndm = eneRndm->GenRandEnergy();
1981 || params.particle_energy > params. << 764
1982 { << 765 if (alpha != -1.) {
1983 if (Biased) << 766 particle_energy = ((rndm * (emaxa - emina)) + emina);
1984 { << 767 particle_energy = std::pow(particle_energy, (1. / (alpha + 1.)));
1985 GenerateBiasPowEnergies(); << 768 } else {
1986 } << 769 particle_energy = (std::log(Emin) + rndm * (std::log(Emax) - std::log(
1987 else << 770 Emin)));
1988 { << 771 particle_energy = std::exp(particle_energy);
1989 if (EnergyDisType == "Mono") << 772 }
1990 { << 773 if (verbosityLevel >= 1)
1991 GenerateMonoEnergetic(); << 774 G4cout << "Energy is " << particle_energy << G4endl;
1992 } << 775 }
1993 else if (EnergyDisType == "Lin") << 776
1994 { << 777 void G4SPSEneDistribution::GenerateBiasPowEnergies() {
1995 GenerateLinearEnergies(false); << 778 // Method to generate particle energies distributed as
1996 } << 779 // in biased power-law and calculate its weight
1997 else if (EnergyDisType == "Pow") << 780
1998 { << 781 G4double rndm;
1999 GeneratePowEnergies(false); << 782 G4double emina, emaxa, emin, emax;
2000 } << 783
2001 else if (EnergyDisType == "CPow") << 784 G4double normal = 1. ;
2002 { << 785
2003 GenerateCPowEnergies(); << 786 emin = Emin;
2004 } << 787 emax = Emax;
2005 else if (EnergyDisType == "Exp") << 788 // if (EnergyDisType == "Arb") {
2006 { << 789 // emin = ArbEmin;
2007 GenerateExpEnergies(false); << 790 // emax = ArbEmax;
2008 } << 791 //}
2009 else if (EnergyDisType == "Gauss") << 792
2010 { << 793 rndm = eneRndm->GenRandEnergy();
2011 GenerateGaussEnergies(); << 794
2012 } << 795 if (biasalpha != -1.) {
2013 else if (EnergyDisType == "Brem") << 796 emina = std::pow(emin, biasalpha + 1);
2014 { << 797 emaxa = std::pow(emax, biasalpha + 1);
2015 GenerateBremEnergies(); << 798 particle_energy = ((rndm * (emaxa - emina)) + emina);
2016 } << 799 particle_energy = std::pow(particle_energy, (1. / (biasalpha + 1.)));
2017 else if (EnergyDisType == "Bbody") << 800 normal = 1./(1+biasalpha) * (emaxa - emina);
2018 { << 801 } else {
2019 GenerateBbodyEnergies(); << 802 particle_energy = (std::log(emin) + rndm * (std::log(emax) - std::log(
2020 } << 803 emin)));
2021 else if (EnergyDisType == "Cdg") << 804 particle_energy = std::exp(particle_energy);
2022 { << 805 normal = std::log(emax) - std::log(emin) ;
2023 GenerateCdgEnergies(); << 806 }
2024 } << 807 weight = GetProbability(particle_energy) / (std::pow(particle_energy,biasalpha)/normal);
2025 else if (EnergyDisType == "User") << 808
2026 { << 809 if (verbosityLevel >= 1)
2027 GenUserHistEnergies(); << 810 G4cout << "Energy is " << particle_energy << G4endl;
2028 } << 811 }
2029 else if (EnergyDisType == "Arb") << 812
2030 { << 813 void G4SPSEneDistribution::GenerateExpEnergies(G4bool bArb = false) {
2031 GenArbPointEnergies(); << 814 // Method to generate particle energies distributed according
2032 } << 815 // to an exponential curve.
2033 else if (EnergyDisType == "Epn") << 816 G4double rndm;
2034 { << 817
2035 GenEpnHistEnergies(); << 818 if (bArb)
2036 } << 819 rndm = G4UniformRand();
2037 else << 820 else
2038 { << 821 rndm = eneRndm->GenRandEnergy();
2039 G4cout << "Error: EnergyDisType has u << 822
2040 } << 823 particle_energy = -Ezero * (std::log(rndm * (std::exp(-Emax / Ezero)
2041 } << 824 - std::exp(-Emin / Ezero)) + std::exp(-Emin / Ezero)));
2042 } << 825 if (verbosityLevel >= 1)
2043 return params.particle_energy; << 826 G4cout << "Energy is " << particle_energy << G4endl;
2044 } << 827 }
2045 << 828
2046 G4double G4SPSEneDistribution::GetProbability << 829 void G4SPSEneDistribution::GenerateBremEnergies() {
2047 { << 830 // Method to generate particle energies distributed according
2048 G4double prob = 1.; << 831 // to a Bremstrahlung equation of
2049 << 832 // form I = const*((kT)**1/2)*E*(e**(-E/kT))
2050 threadLocal_t& params = threadLocalData.Get << 833
2051 if (EnergyDisType == "Lin") << 834 G4double rndm;
2052 { << 835 rndm = eneRndm->GenRandEnergy();
2053 if (prob_norm == 1.) << 836 G4double expmax, expmin, k;
2054 { << 837
2055 prob_norm = 0.5*params.grad*params.Emax << 838 k = 8.6181e-11; // Boltzmann's const in MeV/K
2056 + params.cept*params.Emax << 839 G4double ksq = std::pow(k, 2.); // k squared
2057 - 0.5*params.grad*params.Emin << 840 G4double Tsq = std::pow(Temp, 2.); // Temp squared
2058 - params.cept*params.Emin; << 841
2059 } << 842 expmax = std::exp(-Emax / (k * Temp));
2060 prob = params.cept + params.grad * ene; << 843 expmin = std::exp(-Emin / (k * Temp));
2061 prob /= prob_norm; << 844
2062 } << 845 // If either expmax or expmin are zero then this will cause problems
2063 else if (EnergyDisType == "Pow") << 846 // Most probably this will be because T is too low or E is too high
2064 { << 847
2065 if (prob_norm == 1.) << 848 if (expmax == 0.)
2066 { << 849 G4cout << "*****EXPMAX=0. Choose different E's or Temp" << G4endl;
2067 if (alpha != -1.) << 850 if (expmin == 0.)
2068 { << 851 G4cout << "*****EXPMIN=0. Choose different E's or Temp" << G4endl;
2069 G4double emina = std::pow(params.Emin << 852
2070 G4double emaxa = std::pow(params.Emax << 853 G4double tempvar = rndm * ((-k) * Temp * (Emax * expmax - Emin * expmin)
2071 prob_norm = 1./(1.+alpha) * (emaxa - << 854 - (ksq * Tsq * (expmax - expmin)));
2072 } << 855
2073 else << 856 G4double bigc = (tempvar - k * Temp * Emin * expmin - ksq * Tsq * expmin)
2074 { << 857 / (-k * Temp);
2075 prob_norm = std::log(params.Emax) - s << 858
2076 } << 859 // This gives an equation of form: Ee(-E/kT) + kTe(-E/kT) - C =0
2077 } << 860 // Solve this iteratively, step from Emin to Emax in 1000 steps
2078 prob = std::pow(ene, params.alpha)/prob_n << 861 // and take the best solution.
2079 } << 862
2080 else if (EnergyDisType == "Exp") << 863 G4double erange = Emax - Emin;
2081 { << 864 G4double steps = erange / 1000.;
2082 if (prob_norm == 1.) << 865 G4int i;
2083 { << 866 G4double etest, diff, err;
2084 prob_norm = -params.Ezero*(std::exp(-pa << 867
2085 - std::exp(par << 868 err = 100000.;
2086 } << 869
2087 prob = std::exp(-ene / params.Ezero); << 870 for (i = 1; i < 1000; i++) {
2088 prob /= prob_norm; << 871 etest = Emin + (i - 1) * steps;
2089 } << 872
2090 else if (EnergyDisType == "Arb") << 873 diff = etest * (std::exp(-etest / (k * Temp))) + k * Temp * (std::exp(
2091 { << 874 -etest / (k * Temp))) - bigc;
2092 prob = ArbEnergyH.Value(ene); << 875
2093 << 876 if (diff < 0.)
2094 if (prob <= 0.) << 877 diff = -diff;
2095 { << 878
2096 G4cout << " Warning:G4SPSEneDistributio << 879 if (diff < err) {
2097 << prob << " " << ene << G4endl; << 880 err = diff;
2098 prob = 1e-30; << 881 particle_energy = etest;
2099 } << 882 }
2100 } << 883 }
2101 else << 884 if (verbosityLevel >= 1)
2102 { << 885 G4cout << "Energy is " << particle_energy << G4endl;
2103 G4cout << "Error: EnergyDisType not suppo << 886 }
2104 } << 887
>> 888 void G4SPSEneDistribution::GenerateBbodyEnergies() {
>> 889 // BBody_x holds Energies, and BBHist holds the cumulative histo.
>> 890 // binary search to find correct bin then lin interpolation.
>> 891 // Use the earlier defined histogram + RandGeneral method to generate
>> 892 // random numbers following the histos distribution.
>> 893 G4double rndm;
>> 894 G4int nabove, nbelow = 0, middle;
>> 895 nabove = 10001;
>> 896 rndm = eneRndm->GenRandEnergy();
>> 897
>> 898 // Binary search to find bin that rndm is in
>> 899 while (nabove - nbelow > 1) {
>> 900 middle = (nabove + nbelow) / 2;
>> 901 if (rndm == BBHist[middle])
>> 902 break;
>> 903 if (rndm < BBHist[middle])
>> 904 nabove = middle;
>> 905 else
>> 906 nbelow = middle;
>> 907 }
>> 908
>> 909 // Now interpolate in that bin to find the correct output value.
>> 910 G4double x1, x2, y1, y2, m, q;
>> 911 x1 = Bbody_x[nbelow];
>> 912 x2 = Bbody_x[nbelow + 1];
>> 913 y1 = BBHist[nbelow];
>> 914 y2 = BBHist[nbelow + 1];
>> 915 m = (y2 - y1) / (x2 - x1);
>> 916 q = y1 - m * x1;
>> 917
>> 918 particle_energy = (rndm - q) / m;
>> 919
>> 920 if (verbosityLevel >= 1) {
>> 921 G4cout << "Energy is " << particle_energy << G4endl;
>> 922 }
>> 923 }
>> 924
>> 925 void G4SPSEneDistribution::GenerateCdgEnergies() {
>> 926 // Gen random numbers, compare with values in cumhist
>> 927 // to find appropriate part of spectrum and then
>> 928 // generate energy in the usual inversion way.
>> 929 // G4double pfact[2] = {8.5, 112};
>> 930 // G4double spind[2] = {1.4, 2.3};
>> 931 // G4double ene_line[3] = {1., 18., 1E6};
>> 932 G4double rndm, rndm2;
>> 933 G4double ene_line[3];
>> 934 G4double omalpha[2];
>> 935 if (Emin < 18 * keV && Emax < 18 * keV) {
>> 936 omalpha[0] = 1. - 1.4;
>> 937 ene_line[0] = Emin;
>> 938 ene_line[1] = Emax;
>> 939 }
>> 940 if (Emin < 18 * keV && Emax > 18 * keV) {
>> 941 omalpha[0] = 1. - 1.4;
>> 942 omalpha[1] = 1. - 2.3;
>> 943 ene_line[0] = Emin;
>> 944 ene_line[1] = 18. * keV;
>> 945 ene_line[2] = Emax;
>> 946 }
>> 947 if (Emin > 18 * keV) {
>> 948 omalpha[0] = 1. - 2.3;
>> 949 ene_line[0] = Emin;
>> 950 ene_line[1] = Emax;
>> 951 }
>> 952 rndm = eneRndm->GenRandEnergy();
>> 953 rndm2 = eneRndm->GenRandEnergy();
>> 954
>> 955 G4int i = 0;
>> 956 while (rndm >= CDGhist[i]) {
>> 957 i++;
>> 958 }
>> 959 // Generate final energy.
>> 960 particle_energy = (std::pow(ene_line[i - 1], omalpha[i - 1]) + (std::pow(
>> 961 ene_line[i], omalpha[i - 1]) - std::pow(ene_line[i - 1], omalpha[i
>> 962 - 1])) * rndm2);
>> 963 particle_energy = std::pow(particle_energy, (1. / omalpha[i - 1]));
>> 964
>> 965 if (verbosityLevel >= 1)
>> 966 G4cout << "Energy is " << particle_energy << G4endl;
>> 967 }
>> 968
>> 969 void G4SPSEneDistribution::GenUserHistEnergies() {
>> 970 // Histograms are DIFFERENTIAL.
>> 971 // G4cout << "In GenUserHistEnergies " << G4endl;
>> 972 if (IPDFEnergyExist == false) {
>> 973 G4int ii;
>> 974 G4int maxbin = G4int(UDefEnergyH.GetVectorLength());
>> 975 G4double bins[1024], vals[1024], sum;
>> 976 sum = 0.;
>> 977
>> 978 if ((EnergySpec == false) && (particle_definition == NULL))
>> 979 G4cout << "Error: particle definition is NULL" << G4endl;
>> 980
>> 981 if (maxbin > 1024) {
>> 982 G4cout << "Maxbin > 1024" << G4endl;
>> 983 G4cout << "Setting maxbin to 1024, other bins are lost" << G4endl;
>> 984 }
>> 985
>> 986 if (DiffSpec == false)
>> 987 G4cout << "Histograms are Differential!!! " << G4endl;
>> 988 else {
>> 989 bins[0] = UDefEnergyH.GetLowEdgeEnergy(size_t(0));
>> 990 vals[0] = UDefEnergyH(size_t(0));
>> 991 sum = vals[0];
>> 992 for (ii = 1; ii < maxbin; ii++) {
>> 993 bins[ii] = UDefEnergyH.GetLowEdgeEnergy(size_t(ii));
>> 994 vals[ii] = UDefEnergyH(size_t(ii)) + vals[ii - 1];
>> 995 sum = sum + UDefEnergyH(size_t(ii));
>> 996 }
>> 997 }
>> 998
>> 999 if (EnergySpec == false) {
>> 1000 G4double mass = particle_definition->GetPDGMass();
>> 1001 // multiply the function (vals) up by the bin width
>> 1002 // to make the function counts/s (i.e. get rid of momentum
>> 1003 // dependence).
>> 1004 for (ii = 1; ii < maxbin; ii++) {
>> 1005 vals[ii] = vals[ii] * (bins[ii] - bins[ii - 1]);
>> 1006 }
>> 1007 // Put energy bins into new histo, plus divide by energy bin width
>> 1008 // to make evals counts/s/energy
>> 1009 for (ii = 0; ii < maxbin; ii++) {
>> 1010 bins[ii] = std::sqrt((bins[ii] * bins[ii]) + (mass * mass))
>> 1011 - mass; //kinetic energy
>> 1012 }
>> 1013 for (ii = 1; ii < maxbin; ii++) {
>> 1014 vals[ii] = vals[ii] / (bins[ii] - bins[ii - 1]);
>> 1015 }
>> 1016 sum = vals[maxbin - 1];
>> 1017 vals[0] = 0.;
>> 1018 }
>> 1019 for (ii = 0; ii < maxbin; ii++) {
>> 1020 vals[ii] = vals[ii] / sum;
>> 1021 IPDFEnergyH.InsertValues(bins[ii], vals[ii]);
>> 1022 }
>> 1023
>> 1024 // Make IPDFEnergyExist = true
>> 1025 IPDFEnergyExist = true;
>> 1026 if (verbosityLevel > 1)
>> 1027 IPDFEnergyH.DumpValues();
>> 1028 }
>> 1029
>> 1030 // IPDF has been create so carry on
>> 1031 G4double rndm = eneRndm->GenRandEnergy();
>> 1032 particle_energy = IPDFEnergyH.GetEnergy(rndm);
>> 1033
>> 1034 if (verbosityLevel >= 1)
>> 1035 G4cout << "Energy is " << particle_energy << G4endl;
>> 1036 }
>> 1037
>> 1038 void G4SPSEneDistribution::GenArbPointEnergies() {
>> 1039 if (verbosityLevel > 0)
>> 1040 G4cout << "In GenArbPointEnergies" << G4endl;
>> 1041 G4double rndm;
>> 1042 rndm = eneRndm->GenRandEnergy();
>> 1043 // IPDFArbEnergyH.DumpValues();
>> 1044 // Find the Bin
>> 1045 // have x, y, no of points, and cumulative area distribution
>> 1046 G4int nabove, nbelow = 0, middle;
>> 1047 nabove = IPDFArbEnergyH.GetVectorLength();
>> 1048 // G4cout << nabove << G4endl;
>> 1049 // Binary search to find bin that rndm is in
>> 1050 while (nabove - nbelow > 1) {
>> 1051 middle = (nabove + nbelow) / 2;
>> 1052 if (rndm == IPDFArbEnergyH(size_t(middle)))
>> 1053 break;
>> 1054 if (rndm < IPDFArbEnergyH(size_t(middle)))
>> 1055 nabove = middle;
>> 1056 else
>> 1057 nbelow = middle;
>> 1058 }
>> 1059 if (IntType == "Lin") {
>> 1060 Emax = IPDFArbEnergyH.GetLowEdgeEnergy(size_t(nbelow + 1));
>> 1061 Emin = IPDFArbEnergyH.GetLowEdgeEnergy(size_t(nbelow));
>> 1062 grad = Arb_grad[nbelow + 1];
>> 1063 cept = Arb_cept[nbelow + 1];
>> 1064 // G4cout << rndm << " " << Emax << " " << Emin << " " << grad << " " << cept << G4endl;
>> 1065 GenerateLinearEnergies(true);
>> 1066 } else if (IntType == "Log") {
>> 1067 Emax = IPDFArbEnergyH.GetLowEdgeEnergy(size_t(nbelow + 1));
>> 1068 Emin = IPDFArbEnergyH.GetLowEdgeEnergy(size_t(nbelow));
>> 1069 alpha = Arb_alpha[nbelow + 1];
>> 1070 // G4cout << rndm << " " << Emax << " " << Emin << " " << alpha << G4endl;
>> 1071 GeneratePowEnergies(true);
>> 1072 } else if (IntType == "Exp") {
>> 1073 Emax = IPDFArbEnergyH.GetLowEdgeEnergy(size_t(nbelow + 1));
>> 1074 Emin = IPDFArbEnergyH.GetLowEdgeEnergy(size_t(nbelow));
>> 1075 Ezero = Arb_ezero[nbelow + 1];
>> 1076 // G4cout << rndm << " " << Emax << " " << Emin << " " << Ezero << G4endl;
>> 1077 GenerateExpEnergies(true);
>> 1078 } else if (IntType == "Spline") {
>> 1079 Emax = IPDFArbEnergyH.GetLowEdgeEnergy(size_t(nbelow + 1));
>> 1080 Emin = IPDFArbEnergyH.GetLowEdgeEnergy(size_t(nbelow));
>> 1081 particle_energy = -1e100;
>> 1082 rndm = eneRndm->GenRandEnergy();
>> 1083 while (particle_energy < Emin || particle_energy > Emax) {
>> 1084 particle_energy = SplineInt[nbelow+1]->CubicSplineInterpolation(rndm);
>> 1085 rndm = eneRndm->GenRandEnergy();
>> 1086 }
>> 1087 if (verbosityLevel >= 1)
>> 1088 G4cout << "Energy is " << particle_energy << G4endl;
>> 1089 } else
>> 1090 G4cout << "Error: IntType unknown type" << G4endl;
>> 1091 }
>> 1092
>> 1093 void G4SPSEneDistribution::GenEpnHistEnergies() {
>> 1094 // G4cout << "In GenEpnHistEnergies " << Epnflag << G4endl;
>> 1095
>> 1096 // Firstly convert to energy if not already done.
>> 1097 if (Epnflag == true)
>> 1098 // epnflag = true means spectrum is epn, false means e.
>> 1099 {
>> 1100 // convert to energy by multiplying by A number
>> 1101 ConvertEPNToEnergy();
>> 1102 // EpnEnergyH will be replace by UDefEnergyH.
>> 1103 // UDefEnergyH.DumpValues();
>> 1104 }
>> 1105
>> 1106 // G4cout << "Creating IPDFEnergy if not already done so" << G4endl;
>> 1107 if (IPDFEnergyExist == false) {
>> 1108 // IPDF has not been created, so create it
>> 1109 G4double bins[1024], vals[1024], sum;
>> 1110 G4int ii;
>> 1111 G4int maxbin = G4int(UDefEnergyH.GetVectorLength());
>> 1112 bins[0] = UDefEnergyH.GetLowEdgeEnergy(size_t(0));
>> 1113 vals[0] = UDefEnergyH(size_t(0));
>> 1114 sum = vals[0];
>> 1115 for (ii = 1; ii < maxbin; ii++) {
>> 1116 bins[ii] = UDefEnergyH.GetLowEdgeEnergy(size_t(ii));
>> 1117 vals[ii] = UDefEnergyH(size_t(ii)) + vals[ii - 1];
>> 1118 sum = sum + UDefEnergyH(size_t(ii));
>> 1119 }
>> 1120
>> 1121 for (ii = 0; ii < maxbin; ii++) {
>> 1122 vals[ii] = vals[ii] / sum;
>> 1123 IPDFEnergyH.InsertValues(bins[ii], vals[ii]);
>> 1124 }
>> 1125 // Make IPDFEpnExist = true
>> 1126 IPDFEnergyExist = true;
>> 1127 }
>> 1128 // IPDFEnergyH.DumpValues();
>> 1129 // IPDF has been create so carry on
>> 1130 G4double rndm = eneRndm->GenRandEnergy();
>> 1131 particle_energy = IPDFEnergyH.GetEnergy(rndm);
>> 1132
>> 1133 if (verbosityLevel >= 1)
>> 1134 G4cout << "Energy is " << particle_energy << G4endl;
>> 1135 }
>> 1136
>> 1137 void G4SPSEneDistribution::ConvertEPNToEnergy() {
>> 1138 // Use this before particle generation to convert the
>> 1139 // currently stored histogram from energy/nucleon
>> 1140 // to energy.
>> 1141 // G4cout << "In ConvertEpntoEnergy " << G4endl;
>> 1142 if (particle_definition == NULL)
>> 1143 G4cout << "Error: particle not defined" << G4endl;
>> 1144 else {
>> 1145 // Need to multiply histogram by the number of nucleons.
>> 1146 // Baryon Number looks to hold the no. of nucleons.
>> 1147 G4int Bary = particle_definition->GetBaryonNumber();
>> 1148 // G4cout << "Baryon No. " << Bary << G4endl;
>> 1149 // Change values in histogram, Read it out, delete it, re-create it
>> 1150 G4int count, maxcount;
>> 1151 maxcount = G4int(EpnEnergyH.GetVectorLength());
>> 1152 // G4cout << maxcount << G4endl;
>> 1153 G4double ebins[1024], evals[1024];
>> 1154 if (maxcount > 1024) {
>> 1155 G4cout << "Histogram contains more than 1024 bins!" << G4endl;
>> 1156 G4cout << "Those above 1024 will be ignored" << G4endl;
>> 1157 maxcount = 1024;
>> 1158 }
>> 1159 if (maxcount < 1) {
>> 1160 G4cout << "Histogram contains less than 1 bin!" << G4endl;
>> 1161 G4cout << "Redefine the histogram" << G4endl;
>> 1162 return;
>> 1163 }
>> 1164 for (count = 0; count < maxcount; count++) {
>> 1165 // Read out
>> 1166 ebins[count] = EpnEnergyH.GetLowEdgeEnergy(size_t(count));
>> 1167 evals[count] = EpnEnergyH(size_t(count));
>> 1168 }
>> 1169
>> 1170 // Multiply the channels by the nucleon number to give energies
>> 1171 for (count = 0; count < maxcount; count++) {
>> 1172 ebins[count] = ebins[count] * Bary;
>> 1173 }
>> 1174
>> 1175 // Set Emin and Emax
>> 1176 Emin = ebins[0];
>> 1177 if (maxcount > 1)
>> 1178 Emax = ebins[maxcount - 1];
>> 1179 else
>> 1180 Emax = ebins[0];
>> 1181 // Put energy bins into new histogram - UDefEnergyH.
>> 1182 for (count = 0; count < maxcount; count++) {
>> 1183 UDefEnergyH.InsertValues(ebins[count], evals[count]);
>> 1184 }
>> 1185 Epnflag = false; //so that you dont repeat this method.
>> 1186 }
>> 1187 }
2105 1188
2106 return prob; << 1189 //
>> 1190 void G4SPSEneDistribution::ReSetHist(G4String atype) {
>> 1191 if (atype == "energy") {
>> 1192 UDefEnergyH = IPDFEnergyH = ZeroPhysVector;
>> 1193 IPDFEnergyExist = false;
>> 1194 Emin = 0.;
>> 1195 Emax = 1e30;
>> 1196 } else if (atype == "arb") {
>> 1197 ArbEnergyH = IPDFArbEnergyH = ZeroPhysVector;
>> 1198 IPDFArbExist = false;
>> 1199 } else if (atype == "epn") {
>> 1200 UDefEnergyH = IPDFEnergyH = ZeroPhysVector;
>> 1201 IPDFEnergyExist = false;
>> 1202 EpnEnergyH = ZeroPhysVector;
>> 1203 } else {
>> 1204 G4cout << "Error, histtype not accepted " << G4endl;
>> 1205 }
>> 1206 }
>> 1207
>> 1208 G4double G4SPSEneDistribution::GenerateOne(G4ParticleDefinition* a) {
>> 1209 particle_definition = a;
>> 1210 particle_energy = -1.;
>> 1211
>> 1212 while ((EnergyDisType == "Arb") ? (particle_energy < ArbEmin
>> 1213 || particle_energy > ArbEmax) : (particle_energy < Emin
>> 1214 || particle_energy > Emax)) {
>> 1215 if (Biased) {
>> 1216 GenerateBiasPowEnergies();
>> 1217 } else {
>> 1218 if (EnergyDisType == "Mono")
>> 1219 GenerateMonoEnergetic();
>> 1220 else if (EnergyDisType == "Lin")
>> 1221 GenerateLinearEnergies();
>> 1222 else if (EnergyDisType == "Pow")
>> 1223 GeneratePowEnergies();
>> 1224 else if (EnergyDisType == "Exp")
>> 1225 GenerateExpEnergies();
>> 1226 else if (EnergyDisType == "Gauss")
>> 1227 GenerateGaussEnergies();
>> 1228 else if (EnergyDisType == "Brem")
>> 1229 GenerateBremEnergies();
>> 1230 else if (EnergyDisType == "Bbody")
>> 1231 GenerateBbodyEnergies();
>> 1232 else if (EnergyDisType == "Cdg")
>> 1233 GenerateCdgEnergies();
>> 1234 else if (EnergyDisType == "User")
>> 1235 GenUserHistEnergies();
>> 1236 else if (EnergyDisType == "Arb")
>> 1237 GenArbPointEnergies();
>> 1238 else if (EnergyDisType == "Epn")
>> 1239 GenEpnHistEnergies();
>> 1240 else
>> 1241 G4cout << "Error: EnergyDisType has unusual value" << G4endl;
>> 1242 }
>> 1243 }
>> 1244 return particle_energy;
>> 1245 }
>> 1246
>> 1247 G4double G4SPSEneDistribution::GetProbability(G4double ene) {
>> 1248 G4double prob = 1.;
>> 1249
>> 1250 if (EnergyDisType == "Lin") {
>> 1251 if (prob_norm == 1.) {
>> 1252 prob_norm = 0.5*grad*Emax*Emax + cept*Emax - 0.5*grad*Emin*Emin - cept*Emin;
>> 1253 }
>> 1254 prob = cept + grad * ene;
>> 1255 prob /= prob_norm;
>> 1256 }
>> 1257 else if (EnergyDisType == "Pow") {
>> 1258 if (prob_norm == 1.) {
>> 1259 if (alpha != -1.) {
>> 1260 G4double emina = std::pow(Emin, alpha + 1);
>> 1261 G4double emaxa = std::pow(Emax, alpha + 1);
>> 1262 prob_norm = 1./(1.+alpha) * (emaxa - emina);
>> 1263 } else {
>> 1264 prob_norm = std::log(Emax) - std::log(Emin) ;
>> 1265 }
>> 1266 }
>> 1267 prob = std::pow(ene, alpha)/prob_norm;
>> 1268 }
>> 1269 else if (EnergyDisType == "Exp"){
>> 1270 if (prob_norm == 1.) {
>> 1271 prob_norm = -Ezero*(std::exp(-Emax/Ezero) - std::exp(Emin/Ezero));
>> 1272 }
>> 1273 prob = std::exp(-ene / Ezero);
>> 1274 prob /= prob_norm;
>> 1275 }
>> 1276 else if (EnergyDisType == "Arb") {
>> 1277 prob = ArbEnergyH.Value(ene);
>> 1278 // prob = ArbEInt->CubicSplineInterpolation(ene);
>> 1279 //G4double deltaY;
>> 1280 //prob = ArbEInt->PolynomInterpolation(ene, deltaY);
>> 1281 if (prob <= 0.) {
>> 1282 //G4cout << " Warning:G4SPSEneDistribution::GetProbability: prob<= 0. "<<prob <<" "<<ene << " " <<deltaY<< G4endl;
>> 1283 G4cout << " Warning:G4SPSEneDistribution::GetProbability: prob<= 0. "<<prob <<" "<<ene << G4endl;
>> 1284 prob = 1e-30;
>> 1285 }
>> 1286 // already normalised
>> 1287 }
>> 1288 else
>> 1289 G4cout << "Error: EnergyDisType not supported" << G4endl;
>> 1290
>> 1291 return prob;
2107 } 1292 }
2108 1293