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>> 26 // $Id: XTRTransparentRegRadModel.cc 94932 2015-12-18 09:21:29Z gcosmo $
26 // 27 //
27 /// \file electromagnetic/TestEm10/src/XTRTran 28 /// \file electromagnetic/TestEm10/src/XTRTransparentRegRadModel.cc
28 /// \brief Implementation of the XTRTransparen 29 /// \brief Implementation of the XTRTransparentRegRadModel class
29 // 30 //
30 // 31 //
31 32
32 #include "XTRTransparentRegRadModel.hh" << 33 #include <complex>
33 34
34 #include "G4Gamma.hh" << 35 #include "XTRTransparentRegRadModel.hh"
>> 36 #include "Randomize.hh"
35 #include "G4Integrator.hh" 37 #include "G4Integrator.hh"
>> 38 #include "G4Gamma.hh"
36 #include "G4PhysicalConstants.hh" 39 #include "G4PhysicalConstants.hh"
37 #include "Randomize.hh" <<
38 <<
39 #include <complex> <<
40 40
41 using namespace std; 41 using namespace std;
42 42
43 //....oooOO0OOooo........oooOO0OOooo........oo <<
44 <<
45 ////////////////////////////////////////////// 43 ////////////////////////////////////////////////////////////////////////////
46 // 44 //
47 // Constructor, destructor 45 // Constructor, destructor
48 46
49 XTRTransparentRegRadModel::XTRTransparentRegRa << 47 XTRTransparentRegRadModel::XTRTransparentRegRadModel(G4LogicalVolume *anEnvelope,
50 << 48 G4Material* foilMat,G4Material* gasMat,
51 << 49 G4double a, G4double b, G4int n,
52 << 50 const G4String& processName) :
53 : G4VXTRenergyLoss(anEnvelope, foilMat, gasM << 51 G4VXTRenergyLoss(anEnvelope,foilMat,gasMat,a,b,n,processName)
54 { 52 {
55 G4cout << "Regular transparent X-ray TR rad << 53 G4cout<<"Regular transparent X-ray TR radiator EM process is called"<<G4endl;
56 54
57 // Build energy and angular integral spectra 55 // Build energy and angular integral spectra of X-ray TR photons from
58 // a radiator 56 // a radiator
59 fExitFlux = true; << 57 fExitFlux = true;
60 fAlphaPlate = 10000; 58 fAlphaPlate = 10000;
61 fAlphaGas = 1000; << 59 fAlphaGas = 1000;
62 60
63 // BuildTable(); 61 // BuildTable();
64 } 62 }
65 63
66 //....oooOO0OOooo........oooOO0OOooo........oo << 64 ///////////////////////////////////////////////////////////////////////////
67 65
68 XTRTransparentRegRadModel::~XTRTransparentRegR 66 XTRTransparentRegRadModel::~XTRTransparentRegRadModel()
69 { 67 {
70 ; 68 ;
71 } 69 }
72 70
73 //....oooOO0OOooo........oooOO0OOooo........oo << 71 ///////////////////////////////////////////////////////////////////////////
>> 72 //
>> 73 //
74 74
75 G4double XTRTransparentRegRadModel::SpectralXT 75 G4double XTRTransparentRegRadModel::SpectralXTRdEdx(G4double energy)
76 { 76 {
77 G4double result, sum = 0., tmp, cof1, cof2, << 77 G4double result, sum = 0., tmp, cof1, cof2, cofMin, cofPHC,aMa, bMb, sigma;
78 G4int k, kMax, kMin; 78 G4int k, kMax, kMin;
79 79
80 aMa = GetPlateLinearPhotoAbs(energy); 80 aMa = GetPlateLinearPhotoAbs(energy);
81 bMb = GetGasLinearPhotoAbs(energy); 81 bMb = GetGasLinearPhotoAbs(energy);
82 82
83 // if(fCompton) 83 // if(fCompton)
84 { 84 {
85 aMa += GetPlateCompton(energy); 85 aMa += GetPlateCompton(energy);
86 bMb += GetGasCompton(energy); 86 bMb += GetGasCompton(energy);
87 } 87 }
88 aMa *= fPlateThick; 88 aMa *= fPlateThick;
89 bMb *= fGasThick; 89 bMb *= fGasThick;
90 90
91 sigma = aMa + bMb; 91 sigma = aMa + bMb;
>> 92
>> 93 cofPHC = 4*pi*hbarc;
>> 94 cofPHC *= 200./197.;
>> 95 tmp = (fSigma1 - fSigma2)/cofPHC/energy;
>> 96 cof1 = fPlateThick*tmp;
>> 97 cof2 = fGasThick*tmp;
92 98
93 cofPHC = 4 * pi * hbarc; << 99 cofMin = energy*(fPlateThick + fGasThick)/fGamma/fGamma;
94 cofPHC *= 200. / 197.; << 100 cofMin += (fPlateThick*fSigma1 + fGasThick*fSigma2)/energy;
95 tmp = (fSigma1 - fSigma2) / cofPHC / energy; <<
96 cof1 = fPlateThick * tmp; <<
97 cof2 = fGasThick * tmp; <<
98 <<
99 cofMin = energy * (fPlateThick + fGasThick) <<
100 cofMin += (fPlateThick * fSigma1 + fGasThick <<
101 cofMin /= cofPHC; 101 cofMin /= cofPHC;
102 102
103 // if (fGamma < 1200) kMin = G4int(cofMin); 103 // if (fGamma < 1200) kMin = G4int(cofMin); // 1200 ?
104 // else kMin = 1; 104 // else kMin = 1;
105 105
>> 106
106 kMin = G4int(cofMin); 107 kMin = G4int(cofMin);
107 if (cofMin > kMin) kMin++; 108 if (cofMin > kMin) kMin++;
108 109
109 // tmp = (fPlateThick + fGasThick)*energy*f 110 // tmp = (fPlateThick + fGasThick)*energy*fMaxThetaTR;
110 // tmp /= cofPHC; 111 // tmp /= cofPHC;
111 // kMax = G4int(tmp); 112 // kMax = G4int(tmp);
112 // if(kMax < 0) kMax = 0; 113 // if(kMax < 0) kMax = 0;
113 // kMax += kMin; 114 // kMax += kMin;
>> 115
114 116
115 kMax = kMin + 9; // 5; // 9; // kMin + G4 << 117 kMax = kMin + 9; // 5; // 9; // kMin + G4int(tmp);
116 118
117 // tmp /= fGamma; 119 // tmp /= fGamma;
118 // if( G4int(tmp) < kMin ) kMin = G4int(tmp) 120 // if( G4int(tmp) < kMin ) kMin = G4int(tmp);
119 // G4cout<<"kMin = "<<kMin<<"; kMax = "<< 121 // G4cout<<"kMin = "<<kMin<<"; kMax = "<<kMax<<G4endl;
120 122
121 for (k = kMin; k <= kMax; k++) { << 123 for( k = kMin; k <= kMax; k++ )
122 tmp = pi * fPlateThick * (k + cof2) / (fPl << 124 {
123 result = (k - cof1) * (k - cof1) * (k + co << 125 tmp = pi*fPlateThick*(k + cof2)/(fPlateThick + fGasThick);
>> 126 result = (k - cof1)*(k - cof1)*(k + cof2)*(k + cof2);
124 127
125 if (k == kMin && kMin == G4int(cofMin)) { << 128 if( k == kMin && kMin == G4int(cofMin) )
126 sum += 0.5 * sin(tmp) * sin(tmp) * std:: << 129 {
>> 130 sum += 0.5*sin(tmp)*sin(tmp)*std::abs(k-cofMin)/result;
127 } 131 }
128 else { << 132 else
129 sum += sin(tmp) * sin(tmp) * std::abs(k << 133 {
>> 134 sum += sin(tmp)*sin(tmp)*std::abs(k-cofMin)/result;
130 } 135 }
131 // G4cout<<"k = "<<k<<"; sum = "<<sum< << 136 // G4cout<<"k = "<<k<<"; sum = "<<sum<<G4endl;
132 } 137 }
133 result = 4. * (cof1 + cof2) * (cof1 + cof2) << 138 result = 4.*( cof1 + cof2 )*( cof1 + cof2 )*sum/energy;
134 result *= (1. - exp(-fPlateNumber * sigma)) << 139 result *= ( 1. - exp(-fPlateNumber*sigma) )/( 1. - exp(-sigma) );
135 return result; 140 return result;
136 } 141 }
137 142
138 //....oooOO0OOooo........oooOO0OOooo........oo << 143
>> 144 ///////////////////////////////////////////////////////////////////////////
139 // 145 //
140 // Approximation for radiator interference fac 146 // Approximation for radiator interference factor for the case of
141 // fully Regular radiator. The plate and gas g 147 // fully Regular radiator. The plate and gas gap thicknesses are fixed .
142 // The mean values of the plate and gas gap th << 148 // The mean values of the plate and gas gap thicknesses
143 // are supposed to be about XTR formation zone << 149 // are supposed to be about XTR formation zones but much less than
144 // mean absorption length of XTR photons in co 150 // mean absorption length of XTR photons in coresponding material.
145 151
146 G4double XTRTransparentRegRadModel::GetStackFa << 152 G4double
147 << 153 XTRTransparentRegRadModel::GetStackFactor( G4double energy,
>> 154 G4double gamma, G4double varAngle )
148 { 155 {
149 /* 156 /*
150 G4double result, Za, Zb, Ma, Mb, sigma; 157 G4double result, Za, Zb, Ma, Mb, sigma;
151 << 158
152 Za = GetPlateFormationZone(energy,gamma,varA 159 Za = GetPlateFormationZone(energy,gamma,varAngle);
153 Zb = GetGasFormationZone(energy,gamma,varAng 160 Zb = GetGasFormationZone(energy,gamma,varAngle);
154 Ma = GetPlateLinearPhotoAbs(energy); 161 Ma = GetPlateLinearPhotoAbs(energy);
155 Mb = GetGasLinearPhotoAbs(energy); 162 Mb = GetGasLinearPhotoAbs(energy);
156 sigma = Ma*fPlateThick + Mb*fGasThick; 163 sigma = Ma*fPlateThick + Mb*fGasThick;
157 164
158 G4complex Ca(1.0+0.5*fPlateThick*Ma/fAlphaPl << 165 G4complex Ca(1.0+0.5*fPlateThick*Ma/fAlphaPlate,fPlateThick/Za/fAlphaPlate);
159 G4complex Cb(1.0+0.5*fGasThick*Mb/fAlphaGas, << 166 G4complex Cb(1.0+0.5*fGasThick*Mb/fAlphaGas,fGasThick/Zb/fAlphaGas);
160 167
161 G4complex Ha = pow(Ca,-fAlphaPlate); << 168 G4complex Ha = pow(Ca,-fAlphaPlate);
162 G4complex Hb = pow(Cb,-fAlphaGas); 169 G4complex Hb = pow(Cb,-fAlphaGas);
163 G4complex H = Ha*Hb; 170 G4complex H = Ha*Hb;
164 G4complex F1 = (1.0 - Ha)*(1.0 - Hb )/(1.0 171 G4complex F1 = (1.0 - Ha)*(1.0 - Hb )/(1.0 - H)
165 * G4double(fPlateNumber) ; 172 * G4double(fPlateNumber) ;
166 G4complex F2 = (1.0-Ha)*(1.0-Ha)*Hb/(1.0-H 173 G4complex F2 = (1.0-Ha)*(1.0-Ha)*Hb/(1.0-H)/(1.0-H)
167 * (1.0 - exp(-0.5*fPlateNumbe 174 * (1.0 - exp(-0.5*fPlateNumber*sigma)) ;
168 // *(1.0 - pow(H,fPlateNumber)) ; 175 // *(1.0 - pow(H,fPlateNumber)) ;
169 G4complex R = (F1 + F2)*OneInterfaceXTRdE 176 G4complex R = (F1 + F2)*OneInterfaceXTRdEdx(energy,gamma,varAngle);
170 // G4complex R = F2*OneInterfaceXTRdEdx(ene 177 // G4complex R = F2*OneInterfaceXTRdEdx(energy,gamma,varAngle);
171 result = 2.0*real(R); << 178 result = 2.0*real(R);
172 return result; 179 return result;
173 */ 180 */
174 // numerically unstable result << 181 // numerically unstable result
175 182
176 G4double result, Qa, Qb, Q, aZa, bZb, aMa, b << 183 G4double result, Qa, Qb, Q, aZa, bZb, aMa, bMb, D, sigma;
>> 184
>> 185 aZa = fPlateThick/GetPlateFormationZone(energy,gamma,varAngle);
>> 186 bZb = fGasThick/GetGasFormationZone(energy,gamma,varAngle);
>> 187 aMa = fPlateThick*GetPlateLinearPhotoAbs(energy);
>> 188 bMb = fGasThick*GetGasLinearPhotoAbs(energy);
>> 189 sigma = aMa*fPlateThick + bMb*fGasThick;
>> 190 Qa = exp(-0.5*aMa);
>> 191 Qb = exp(-0.5*bMb);
>> 192 Q = Qa*Qb;
177 193
178 aZa = fPlateThick / GetPlateFormationZone(en << 194 G4complex Ha( Qa*cos(aZa), -Qa*sin(aZa) );
179 bZb = fGasThick / GetGasFormationZone(energy << 195 G4complex Hb( Qb*cos(bZb), -Qb*sin(bZb) );
180 aMa = fPlateThick * GetPlateLinearPhotoAbs(e << 196 G4complex H = Ha*Hb;
181 bMb = fGasThick * GetGasLinearPhotoAbs(energ <<
182 sigma = aMa * fPlateThick + bMb * fGasThick; <<
183 Qa = exp(-0.5 * aMa); <<
184 Qb = exp(-0.5 * bMb); <<
185 Q = Qa * Qb; <<
186 <<
187 G4complex Ha(Qa * cos(aZa), -Qa * sin(aZa)); <<
188 G4complex Hb(Qb * cos(bZb), -Qb * sin(bZb)); <<
189 G4complex H = Ha * Hb; <<
190 G4complex Hs = conj(H); 197 G4complex Hs = conj(H);
191 D = 1.0 / ((1 - Q) * (1 - Q) + 4 * Q * sin(0 << 198 D = 1.0 /( (1 - Q)*(1 - Q) +
192 G4complex F1 = (1.0 - Ha) * (1.0 - Hb) * (1. << 199 4*Q*sin(0.5*(aZa + bZb))*sin(0.5*(aZa + bZb)) );
193 G4complex F2 = (1.0 - Ha) * (1.0 - Ha) * Hb << 200 G4complex F1 = (1.0 - Ha)*(1.0 - Hb)*(1.0 - Hs)
194 * (1.0 - Hs) << 201 * G4double(fPlateNumber)*D;
195 // * (1.0 - pow(H,fPlateNumbe << 202 G4complex F2 = (1.0 - Ha)*(1.0 - Ha)*Hb*(1.0 - Hs)*(1.0 - Hs)
196 * (1.0 - exp(-0.5 * fPlateNum << 203 // * (1.0 - pow(H,fPlateNumber)) * D*D;
197 G4complex R = (F1 + F2) * OneInterfaceXTRdEd << 204 * (1.0 - exp(-0.5*fPlateNumber*sigma)) * D*D;
198 result = 2.0 * real(R); << 205 G4complex R = (F1 + F2)*OneInterfaceXTRdEdx(energy,gamma,varAngle);
199 return result; << 206 result = 2.0*real(R);
>> 207 return result;
>> 208
200 } 209 }
>> 210
>> 211
>> 212 //
>> 213 //
>> 214 ////////////////////////////////////////////////////////////////////////////
>> 215
>> 216
>> 217
>> 218
>> 219
>> 220
>> 221
>> 222
201 223