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