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Please see the license in the file LICENSE and URL above * 16 // * for the full disclaimer and the limitatio 16 // * for the full disclaimer and the limitation of liability. * 17 // * 17 // * * 18 // * This code implementation is the result 18 // * This code implementation is the result of the scientific and * 19 // * technical work of the GEANT4 collaboratio 19 // * technical work of the GEANT4 collaboration. * 20 // * By using, copying, modifying or distri 20 // * By using, copying, modifying or distributing the software (or * 21 // * any work based on the software) you ag 21 // * any work based on the software) you agree to acknowledge its * 22 // * use in resulting scientific publicati 22 // * use in resulting scientific publications, and indicate your * 23 // * acceptance of all terms of the Geant4 Sof 23 // * acceptance of all terms of the Geant4 Software license. * 24 // ******************************************* 24 // ******************************************************************** 25 // 25 // >> 26 // $Id: GFlashHomoShowerParameterisation.cc,v 1.5 2006/06/29 19:14:14 gunter Exp $ >> 27 // GEANT4 tag $Name: geant4-09-00 $ 26 // 28 // 27 // 29 // 28 // ------------------------------------------- 30 // ------------------------------------------------------------ 29 // GEANT 4 class implementation 31 // GEANT 4 class implementation 30 // 32 // 31 // ------- GFlashHomoShowerParameterisati 33 // ------- GFlashHomoShowerParameterisation ------- 32 // 34 // 33 // Authors: E.Barberio & Joanna Weng - 9.11.20 35 // Authors: E.Barberio & Joanna Weng - 9.11.2004 34 // ------------------------------------------- 36 // ------------------------------------------------------------ 35 37 36 #include <cmath> << 37 << 38 #include "GFlashHomoShowerParameterisation.hh" << 39 #include "GVFlashShowerParameterisation.hh" 38 #include "GVFlashShowerParameterisation.hh" 40 #include "G4PhysicalConstants.hh" << 39 #include "GFlashHomoShowerParameterisation.hh" 41 #include "G4SystemOfUnits.hh" << 40 #include <cmath> 42 #include "Randomize.hh" 41 #include "Randomize.hh" 43 #include "G4ios.hh" 42 #include "G4ios.hh" 44 #include "G4Material.hh" 43 #include "G4Material.hh" 45 #include "G4MaterialTable.hh" 44 #include "G4MaterialTable.hh" 46 45 47 GFlashHomoShowerParameterisation::GFlashHomoSh << 46 GFlashHomoShowerParameterisation:: 48 << 47 GFlashHomoShowerParameterisation(G4Material * aMat, 49 : GVFlashShowerParameterisation(), << 48 GVFlashHomoShowerTuning * aPar) 50 ConstantResolution(0.), << 49 : GVFlashShowerParameterisation() 51 NoiseResolution(0.), << 50 { 52 SamplingResolution(0.), << 51 if(!aPar) { thePar = new GVFlashHomoShowerTuning; } 53 AveLogAlphah(0.), << 52 else { thePar = aPar; } 54 AveLogTmaxh(0.), << 55 SigmaLogAlphah(0.), << 56 SigmaLogTmaxh(0.), << 57 Rhoh(0.), << 58 Alphah(0.), << 59 Tmaxh(0.), << 60 Betah(0.) << 61 << 62 { << 63 if (!aPar) { << 64 thePar = new GVFlashHomoShowerTuning; << 65 } << 66 else { << 67 thePar = aPar; << 68 } << 69 53 70 SetMaterial(aMat); 54 SetMaterial(aMat); 71 PrintMaterial(aMat); 55 PrintMaterial(aMat); 72 56 73 /******************************************* 57 /********************************************/ 74 /* Homo Calorimeter 58 /* Homo Calorimeter */ 75 /******************************************* << 59 /********************************************/ 76 // Longitudinal Coefficients for a homogenio 60 // Longitudinal Coefficients for a homogenious calo 77 // shower max 61 // shower max 78 // 62 // 79 ParAveT1 = thePar->ParAveT1(); // ln (ln y << 63 ParAveT1 = thePar->ParAveT1(); // ln (ln y -0.812) 80 ParAveA1 = thePar->ParAveA1(); // ln a (0.8 << 64 ParAveA1 = thePar->ParAveA1(); // ln a (0.81 + (0.458 + 2.26/Z)ln y) 81 ParAveA2 = thePar->ParAveA2(); << 65 ParAveA2 = thePar->ParAveA2(); 82 ParAveA3 = thePar->ParAveA3(); << 66 ParAveA3 = thePar->ParAveA3(); 83 67 84 // Variance of shower max 68 // Variance of shower max 85 ParSigLogT1 = thePar->ParSigLogT1(); // Sig << 69 ParSigLogT1 = thePar->ParSigLogT1(); // Sigma T1 (-1.4 + 1.26 ln y)**-1 86 ParSigLogT2 = thePar->ParSigLogT2(); 70 ParSigLogT2 = thePar->ParSigLogT2(); 87 71 88 // variance of 'alpha' 72 // variance of 'alpha' 89 // 73 // 90 ParSigLogA1 = thePar->ParSigLogA1(); // Sig << 74 ParSigLogA1 = thePar->ParSigLogA1(); // Sigma a (-0.58 + 0.86 ln y)**-1 91 ParSigLogA2 = thePar->ParSigLogA2(); 75 ParSigLogA2 = thePar->ParSigLogA2(); 92 76 93 // correlation alpha%T 77 // correlation alpha%T 94 // 78 // 95 ParRho1 = thePar->ParRho1(); // Rho = 0.705 << 79 ParRho1 = thePar->ParRho1(); // Rho = 0.705 -0.023 ln y 96 ParRho2 = thePar->ParRho2(); << 80 ParRho2 = thePar->ParRho2(); 97 81 98 // Radial Coefficients 82 // Radial Coefficients 99 // r_C (tau)= z_1 +z_2 tau 83 // r_C (tau)= z_1 +z_2 tau 100 // r_t (tau)= k1 (std::exp (k3(tau -k2 ))+st 84 // r_t (tau)= k1 (std::exp (k3(tau -k2 ))+std::exp (k_4 (tau- k_2)))) 101 // 85 // 102 ParRC1 = thePar->ParRC1(); // z_1 = 0.0251 << 86 ParRC1 = thePar->ParRC1(); // z_1 = 0.0251 + 0.00319 ln E 103 ParRC2 = thePar->ParRC2(); << 87 ParRC2 = thePar->ParRC2(); 104 88 105 ParRC3 = thePar->ParRC3(); // z_2 = 0.1162 << 89 ParRC3 = thePar->ParRC3(); // z_2 = 0.1162 + - 0.000381 Z 106 ParRC4 = thePar->ParRC4(); << 90 ParRC4 = thePar->ParRC4(); 107 91 108 ParWC1 = thePar->ParWC1(); 92 ParWC1 = thePar->ParWC1(); 109 ParWC2 = thePar->ParWC2(); 93 ParWC2 = thePar->ParWC2(); 110 ParWC3 = thePar->ParWC3(); 94 ParWC3 = thePar->ParWC3(); 111 ParWC4 = thePar->ParWC4(); 95 ParWC4 = thePar->ParWC4(); 112 ParWC5 = thePar->ParWC5(); << 96 ParWC5 = thePar->ParWC5(); 113 ParWC6 = thePar->ParWC6(); 97 ParWC6 = thePar->ParWC6(); 114 98 115 ParRT1 = thePar->ParRT1(); 99 ParRT1 = thePar->ParRT1(); 116 ParRT2 = thePar->ParRT2(); 100 ParRT2 = thePar->ParRT2(); 117 ParRT3 = thePar->ParRT3(); 101 ParRT3 = thePar->ParRT3(); 118 ParRT4 = thePar->ParRT4(); << 102 ParRT4 = thePar->ParRT4(); 119 ParRT5 = thePar->ParRT5(); 103 ParRT5 = thePar->ParRT5(); 120 ParRT6 = thePar->ParRT6(); 104 ParRT6 = thePar->ParRT6(); 121 105 122 // Coeff for fluctueted radial profiles for 106 // Coeff for fluctueted radial profiles for a uniform media 123 // 107 // 124 ParSpotT1 = thePar->ParSpotT1(); // T_spot << 108 ParSpotT1 = thePar->ParSpotT1(); // T_spot = T_hom =(0.698 + 0.00212) 125 ParSpotT2 = thePar->ParSpotT2(); << 109 ParSpotT2 = thePar->ParSpotT2(); 126 110 127 ParSpotA1 = thePar->ParSpotA1(); // a_spot= << 111 ParSpotA1 = thePar->ParSpotA1(); // a_spot= a_hom (0.639 + 0.00334) 128 ParSpotA2 = thePar->ParSpotA2(); << 112 ParSpotA2 = thePar->ParSpotA2(); 129 113 130 ParSpotN1 = thePar->ParSpotN1(); // N_Spot << 114 ParSpotN1 = thePar->ParSpotN1(); // N_Spot 93 * ln(Z) E ** 0.876 131 ParSpotN2 = thePar->ParSpotN2(); << 115 ParSpotN2 = thePar->ParSpotN2(); 132 116 133 // Inits 117 // Inits 134 118 135 NSpot = 0.00; << 119 NSpot = 0.00; 136 AlphaNSpot = 0.00; << 120 AlphaNSpot = 0.00; 137 TNSpot = 0.00; << 121 TNSpot = 0.00; 138 BetaNSpot = 0.00; << 122 BetaNSpot = 0.00; 139 << 123 140 RadiusCore = 0.00; << 124 RadiusCore = 0.00; 141 WeightCore = 0.00; << 125 WeightCore = 0.00; 142 RadiusTail = 0.00; << 126 RadiusTail = 0.00; 143 127 144 G4cout << "/******************************** 128 G4cout << "/********************************************/ " << G4endl; 145 G4cout << " - GFlashHomoShowerParameterisat << 129 G4cout << " - GFlashHomoShowerParameterisation::Constructor - " << G4endl; 146 G4cout << "/******************************** 130 G4cout << "/********************************************/ " << G4endl; 147 } 131 } 148 132 149 void GFlashHomoShowerParameterisation::SetMate << 133 void GFlashHomoShowerParameterisation::SetMaterial(G4Material *mat) 150 { 134 { 151 material = mat; << 135 material= mat; 152 Z = GetEffZ(material); 136 Z = GetEffZ(material); 153 A = GetEffA(material); 137 A = GetEffA(material); 154 density = material->GetDensity() / (g / cm3) << 138 density = material->GetDensity()/(g/cm3); 155 X0 = material->GetRadlen(); << 139 X0 = material->GetRadlen(); 156 // O. I. Dovzhenkko and A. A. Pommanskii << 140 Ec = 2.66 * std::pow((X0 * Z / A),1.1); 157 Ec = 2.66 * std::pow((X0 * Z / A), 1.1); << 141 G4double Es = 21*MeV; 158 // // Rossi appriximation << 142 Rm = X0*Es/Ec; 159 // Ec = 610.0 * MeV / (Z + 1.24); << 143 // PrintMaterial(); 160 const G4double Es = 21.2 * MeV; << 161 Rm = X0 * Es / Ec; << 162 // PrintMaterial(); << 163 } 144 } 164 145 165 GFlashHomoShowerParameterisation::~GFlashHomoS 146 GFlashHomoShowerParameterisation::~GFlashHomoShowerParameterisation() 166 { << 147 {} 167 delete thePar; << 168 } << 169 148 170 void GFlashHomoShowerParameterisation::Generat << 149 void GFlashHomoShowerParameterisation:: >> 150 GenerateLongitudinalProfile(G4double Energy) 171 { 151 { 172 if (material == 0) { << 152 if (material==0) 173 G4Exception("GFlashHomoShowerParameterisat << 153 { 174 FatalException, "No material i << 154 G4Exception("GFlashHomoShowerParameterisation::GenerateLongitudinalProfile()", >> 155 "InvalidSetup", FatalException, "No material initialized!"); 175 } 156 } 176 << 157 177 G4double y = Energy / Ec; << 158 G4double y = Energy/Ec; 178 ComputeLongitudinalParameters(y); << 159 ComputeLongitudinalParameters(y); 179 GenerateEnergyProfile(y); 160 GenerateEnergyProfile(y); 180 GenerateNSpotProfile(y); 161 GenerateNSpotProfile(y); 181 } 162 } 182 163 183 void GFlashHomoShowerParameterisation::Compute << 164 void >> 165 GFlashHomoShowerParameterisation::ComputeLongitudinalParameters(G4double y) 184 { 166 { 185 AveLogTmaxh = std::log(ParAveT1 + std::log(y << 167 AveLogTmaxh = std::log(ParAveT1 + std::log(y)); 186 // ok <ln T hom> << 168 //ok <ln T hom> 187 AveLogAlphah = std::log(ParAveA1 + (ParAveA2 << 169 AveLogAlphah = std::log(ParAveA1 + (ParAveA2+ParAveA3/Z)*std::log(y)); 188 // ok <ln alpha hom> << 170 //ok <ln alpha hom> 189 << 171 190 SigmaLogTmaxh = 1.00 / (ParSigLogT1 + ParSig << 172 SigmaLogTmaxh = 1.00/( ParSigLogT1 + ParSigLogT2*std::log(y)) ; 191 // ok sigma (ln T hom) << 173 //ok sigma (ln T hom) 192 SigmaLogAlphah = 1.00 / (ParSigLogA1 + ParSi << 174 SigmaLogAlphah = 1.00/( ParSigLogA1 + ParSigLogA2*std::log(y)); 193 // ok sigma (ln alpha hom) << 175 //ok sigma (ln alpha hom) 194 Rhoh = ParRho1 + ParRho2 * std::log(y); // << 176 Rhoh = ParRho1+ParRho2*std::log(y); //ok 195 } 177 } 196 178 197 void GFlashHomoShowerParameterisation::Generat 179 void GFlashHomoShowerParameterisation::GenerateEnergyProfile(G4double /* y */) 198 { << 180 { 199 G4double Correlation1h = std::sqrt((1 + Rhoh << 181 G4double Correlation1h = std::sqrt((1+Rhoh)/2); 200 G4double Correlation2h = std::sqrt((1 - Rhoh << 182 G4double Correlation2h = std::sqrt((1-Rhoh)/2); 201 183 202 G4double Random1 = G4RandGauss::shoot(); 184 G4double Random1 = G4RandGauss::shoot(); 203 G4double Random2 = G4RandGauss::shoot(); 185 G4double Random2 = G4RandGauss::shoot(); 204 186 205 // Parameters for Enenrgy Profile including << 187 // Parameters for Enenrgy Profile including correaltion and sigmas 206 << 188 207 Tmaxh = << 189 Tmaxh = std::exp( AveLogTmaxh + SigmaLogTmaxh * 208 std::exp(AveLogTmaxh + SigmaLogTmaxh * (Co << 190 (Correlation1h*Random1 + Correlation2h*Random2) ); 209 Alphah = << 191 Alphah = std::exp( AveLogAlphah + SigmaLogAlphah * 210 std::exp(AveLogAlphah + SigmaLogAlphah * ( << 192 (Correlation1h*Random1 - Correlation2h*Random2) ); 211 Betah = (Alphah - 1.00) / Tmaxh; << 193 Betah = (Alphah-1.00)/Tmaxh; 212 } 194 } 213 195 214 void GFlashHomoShowerParameterisation::Generat 196 void GFlashHomoShowerParameterisation::GenerateNSpotProfile(const G4double y) 215 { 197 { 216 TNSpot = Tmaxh * (ParSpotT1 + ParSpotT2 * Z) << 198 TNSpot = Tmaxh * (ParSpotT1+ParSpotT2*Z); // ok 217 AlphaNSpot = Alphah * (ParSpotA1 + ParSpotA2 << 199 AlphaNSpot = Alphah * (ParSpotA1+ParSpotA2*Z); 218 BetaNSpot = (AlphaNSpot - 1.00) / TNSpot; / << 200 BetaNSpot = (AlphaNSpot-1.00)/TNSpot; // ok 219 NSpot = ParSpotN1 * std::log(Z) * std::pow(( << 201 NSpot = ParSpotN1 * std::log(Z)*std::pow((y*Ec)/GeV,ParSpotN2 ); // ok 220 } 202 } 221 203 222 G4double GFlashHomoShowerParameterisation:: 204 G4double GFlashHomoShowerParameterisation:: 223 IntegrateEneLongitudinal(G4double Longitudinal 205 IntegrateEneLongitudinal(G4double LongitudinalStep) 224 { 206 { 225 G4double LongitudinalStepInX0 = Longitudinal 207 G4double LongitudinalStepInX0 = LongitudinalStep / X0; 226 G4float x1= Betah*LongitudinalStepInX0; 208 G4float x1= Betah*LongitudinalStepInX0; 227 G4float x2= Alphah; 209 G4float x2= Alphah; 228 float x3 = gam(x1,x2); 210 float x3 = gam(x1,x2); 229 G4double DEne=x3; 211 G4double DEne=x3; 230 return DEne; 212 return DEne; 231 } 213 } 232 214 233 G4double GFlashHomoShowerParameterisation::Int << 215 G4double GFlashHomoShowerParameterisation:: >> 216 IntegrateNspLongitudinal(G4double LongitudinalStep) 234 { 217 { 235 G4double LongitudinalStepInX0 = Longitudinal << 218 G4double LongitudinalStepInX0 = LongitudinalStep / X0; 236 G4float x1 = BetaNSpot * LongitudinalStepInX << 219 G4float x1 = BetaNSpot*LongitudinalStepInX0; 237 G4float x2 = AlphaNSpot; 220 G4float x2 = AlphaNSpot; 238 G4float x3 = gam(x1, x2); << 221 G4float x3 = gam(x1,x2); 239 G4double DNsp = x3; 222 G4double DNsp = x3; 240 return DNsp; 223 return DNsp; 241 } 224 } 242 225 243 G4double GFlashHomoShowerParameterisation::Gen << 226 244 << 227 G4double GFlashHomoShowerParameterisation:: >> 228 GenerateRadius(G4int ispot, G4double Energy, G4double LongitudinalPosition) 245 { 229 { 246 if (ispot < 1) { << 230 if(ispot < 1) >> 231 { 247 // Determine lateral parameters in the mid 232 // Determine lateral parameters in the middle of the step. 248 // They depend on energy & position along 233 // They depend on energy & position along step. 249 // 234 // 250 G4double Tau = ComputeTau(LongitudinalPosi 235 G4double Tau = ComputeTau(LongitudinalPosition); 251 ComputeRadialParameters(Energy, Tau); << 236 ComputeRadialParameters(Energy,Tau); 252 } 237 } 253 238 254 G4double Radius; 239 G4double Radius; 255 G4double Random1 = G4UniformRand(); 240 G4double Random1 = G4UniformRand(); 256 G4double Random2 = G4UniformRand(); << 241 G4double Random2 = G4UniformRand(); 257 242 258 if (Random1 < WeightCore) // WeightCore = p << 243 if(Random1 <WeightCore) //WeightCore = p < w_i 259 { 244 { 260 Radius = Rm * RadiusCore * std::sqrt(Rando << 245 Radius = Rm * RadiusCore * std::sqrt( Random2/(1. - Random2) ); 261 } 246 } 262 else { << 247 else 263 Radius = Rm * RadiusTail * std::sqrt(Rando << 248 { 264 } << 249 Radius = Rm * RadiusTail * std::sqrt( Random2/(1. - Random2) ); 265 Radius = std::min(Radius, DBL_MAX); << 250 } >> 251 Radius = std::min(Radius,DBL_MAX); 266 return Radius; 252 return Radius; 267 } 253 } 268 254 269 G4double GFlashHomoShowerParameterisation::Com << 255 G4double GFlashHomoShowerParameterisation:: >> 256 ComputeTau(G4double LongitudinalPosition) 270 { 257 { 271 G4double tau = LongitudinalPosition / Tmaxh << 258 G4double tau = LongitudinalPosition / Tmaxh / X0 //<t> = T* a /(a - 1) 272 * (Alphah - 1.00) / Alphah * << 259 * (Alphah-1.00) /Alphah * 273 / (std::exp(AveLogAlphah) - 1 << 260 std::exp(AveLogAlphah)/(std::exp(AveLogAlphah)-1.); //ok 274 return tau; 261 return tau; 275 } 262 } 276 263 277 void GFlashHomoShowerParameterisation::Compute << 264 void GFlashHomoShowerParameterisation:: >> 265 ComputeRadialParameters(G4double Energy, G4double Tau) 278 { 266 { 279 G4double z1 = ParRC1 + ParRC2 * std::log(Ene << 267 G4double z1 = ParRC1 + ParRC2* std::log(Energy/GeV) ; //ok 280 G4double z2 = ParRC3 + ParRC4 * Z; // ok << 268 G4double z2 = ParRC3+ParRC4*Z ; //ok 281 RadiusCore = z1 + z2 * Tau; // ok << 269 RadiusCore = z1 + z2 * Tau ; //ok 282 << 270 283 G4double p1 = ParWC1 + ParWC2 * Z; // ok << 271 G4double p1 = ParWC1+ParWC2*Z; //ok 284 G4double p2 = ParWC3 + ParWC4 * Z; // ok << 272 G4double p2 = ParWC3+ParWC4*Z; //ok 285 G4double p3 = ParWC5 + ParWC6 * std::log(Ene << 273 G4double p3 = ParWC5+ParWC6*std::log(Energy/GeV); //ok 286 << 274 287 WeightCore = p1 * std::exp((p2 - Tau) / p3 - << 275 WeightCore = p1 * std::exp( (p2-Tau)/p3 - std::exp( (p2-Tau) /p3) ); //ok 288 << 276 289 G4double k1 = ParRT1 + ParRT2 * Z; // ok << 277 G4double k1 = ParRT1+ParRT2*Z; // ok 290 G4double k2 = ParRT3; // ok << 278 G4double k2 = ParRT3; // ok 291 G4double k3 = ParRT4; // ok << 279 G4double k3 = ParRT4; // ok 292 G4double k4 = ParRT5 + ParRT6 * std::log(Ene << 280 G4double k4 = ParRT5+ParRT6* std::log(Energy/GeV); // ok 293 281 294 RadiusTail = k1 * (std::exp(k3 * (Tau - k2)) << 282 RadiusTail = k1*(std::exp(k3*(Tau-k2)) + >> 283 std::exp(k4*(Tau-k2)) ); //ok 295 } 284 } 296 285 297 G4double GFlashHomoShowerParameterisation:: 286 G4double GFlashHomoShowerParameterisation:: 298 GenerateExponential(const G4double /* Energy * 287 GenerateExponential(const G4double /* Energy */ ) 299 { 288 { 300 G4double ParExp1 = 9./7.*X0; 289 G4double ParExp1 = 9./7.*X0; 301 G4double random = -ParExp1*G4RandExponentia << 290 G4double random = -ParExp1*CLHEP::RandExponential::shoot() ; 302 return random; 291 return random; 303 } 292 } 304 293