1 | // |
---|
2 | // ******************************************************************** |
---|
3 | // * License and Disclaimer * |
---|
4 | // * * |
---|
5 | // * The Geant4 software is copyright of the Copyright Holders of * |
---|
6 | // * the Geant4 Collaboration. It is provided under the terms and * |
---|
7 | // * conditions of the Geant4 Software License, included in the file * |
---|
8 | // * LICENSE and available at http://cern.ch/geant4/license . These * |
---|
9 | // * include a list of copyright holders. * |
---|
10 | // * * |
---|
11 | // * Neither the authors of this software system, nor their employing * |
---|
12 | // * institutes,nor the agencies providing financial support for this * |
---|
13 | // * work make any representation or warranty, express or implied, * |
---|
14 | // * regarding this software system or assume any liability for its * |
---|
15 | // * use. Please see the license in the file LICENSE and URL above * |
---|
16 | // * for the full disclaimer and the limitation of liability. * |
---|
17 | // * * |
---|
18 | // * This code implementation is the result of the scientific and * |
---|
19 | // * technical work of the GEANT4 collaboration. * |
---|
20 | // * By using, copying, modifying or distributing the software (or * |
---|
21 | // * any work based on the software) you agree to acknowledge its * |
---|
22 | // * use in resulting scientific publications, and indicate your * |
---|
23 | // * acceptance of all terms of the Geant4 Software license. * |
---|
24 | // ******************************************************************** |
---|
25 | // |
---|
26 | // |
---|
27 | // Unit test for coherent elastic models |
---|
28 | // |
---|
29 | // 18.05.07 V. Grichine |
---|
30 | // |
---|
31 | // |
---|
32 | |
---|
33 | #include "G4ios.hh" |
---|
34 | #include <fstream> |
---|
35 | #include <cmath> |
---|
36 | #include "globals.hh" |
---|
37 | #include "Randomize.hh" |
---|
38 | #include "G4UnitsTable.hh" |
---|
39 | #include <iomanip> |
---|
40 | #include <complex> |
---|
41 | |
---|
42 | |
---|
43 | #include "G4Element.hh" |
---|
44 | #include "G4NistManager.hh" |
---|
45 | |
---|
46 | |
---|
47 | #include "G4ParticleDefinition.hh" |
---|
48 | #include "G4PionPlus.hh" |
---|
49 | #include "G4PionMinus.hh" |
---|
50 | #include "G4MuonPlus.hh" |
---|
51 | #include "G4MuonMinus.hh" |
---|
52 | #include "G4Proton.hh" |
---|
53 | #include "G4Electron.hh" |
---|
54 | #include "G4Gamma.hh" |
---|
55 | |
---|
56 | #include "G4DynamicParticle.hh" |
---|
57 | #include "G4ParticleMomentum.hh" |
---|
58 | |
---|
59 | #include "G4VEmModel.hh" |
---|
60 | #include "G4KleinNishinaCompton.hh" |
---|
61 | #include "G4HeatedKleinNishinaCompton.hh" |
---|
62 | #include "G4PEEffectModel.hh" |
---|
63 | #include "G4PairProductionRelModel.hh" |
---|
64 | #include "G4BetheHeitlerModel.hh" |
---|
65 | |
---|
66 | |
---|
67 | using namespace std; |
---|
68 | |
---|
69 | |
---|
70 | |
---|
71 | int main() |
---|
72 | { |
---|
73 | |
---|
74 | G4int i, j, k, iMax; |
---|
75 | G4double x; |
---|
76 | G4double expXrad=0., g4Xrad; |
---|
77 | |
---|
78 | std::ofstream writef("angle.dat", std::ios::out ) ; |
---|
79 | writef.setf( std::ios::scientific, std::ios::floatfield ); |
---|
80 | |
---|
81 | |
---|
82 | G4Element* theElement; |
---|
83 | G4Material* theMaterial; |
---|
84 | G4NistManager* man = G4NistManager::Instance(); |
---|
85 | man->SetVerbose(1); |
---|
86 | |
---|
87 | G4cout << " 1 hydrogen" << G4endl; |
---|
88 | G4cout << " 2 helium" << G4endl; |
---|
89 | G4cout << " 4 berillium" << G4endl; |
---|
90 | G4cout << " 6 carbon" << G4endl; |
---|
91 | G4cout << " 7 nitrogen" << G4endl; |
---|
92 | G4cout << " 8 oxigen" << G4endl; |
---|
93 | G4cout << "13 aluminium" << G4endl; |
---|
94 | G4cout << "14 silicon" << G4endl; |
---|
95 | G4cout << "18 argon" << G4endl; |
---|
96 | G4cout << "26 iron" << G4endl; |
---|
97 | G4cout << "29 copper" << G4endl; |
---|
98 | G4cout << "48 cadmium" << G4endl; |
---|
99 | G4cout << "54 xenon" << G4endl; |
---|
100 | G4cout << "74 tugnsten" << G4endl; |
---|
101 | G4cout << "77 iridium" << G4endl; |
---|
102 | G4cout << "82 lead" << G4endl; |
---|
103 | G4cout << "92 uranium" << G4endl; |
---|
104 | G4int choice; |
---|
105 | // G4cin >> choice; |
---|
106 | choice = 6; |
---|
107 | |
---|
108 | |
---|
109 | switch (choice) |
---|
110 | { |
---|
111 | case 1: |
---|
112 | |
---|
113 | theElement = man->FindOrBuildElement("H"); |
---|
114 | theMaterial = man->FindOrBuildMaterial("G4_H"); |
---|
115 | g4Xrad = theMaterial->GetRadlen(); |
---|
116 | break; |
---|
117 | |
---|
118 | case 2: |
---|
119 | |
---|
120 | theElement = man->FindOrBuildElement("He"); |
---|
121 | theMaterial = man->FindOrBuildMaterial("G4_He"); |
---|
122 | g4Xrad = theMaterial->GetRadlen(); |
---|
123 | break; |
---|
124 | |
---|
125 | case 4: |
---|
126 | |
---|
127 | theElement = man->FindOrBuildElement("Be"); |
---|
128 | theMaterial = man->FindOrBuildMaterial("G4_Be"); |
---|
129 | g4Xrad = theMaterial->GetRadlen(); |
---|
130 | break; |
---|
131 | |
---|
132 | case 6: |
---|
133 | |
---|
134 | theElement = man->FindOrBuildElement("C"); |
---|
135 | theMaterial = man->FindOrBuildMaterial("G4_C"); |
---|
136 | g4Xrad = theMaterial->GetRadlen(); |
---|
137 | expXrad = 19.6*cm; |
---|
138 | break; |
---|
139 | |
---|
140 | case 7: |
---|
141 | |
---|
142 | theElement = man->FindOrBuildElement("N"); |
---|
143 | theMaterial = man->FindOrBuildMaterial("G4_N"); |
---|
144 | g4Xrad = theMaterial->GetRadlen(); |
---|
145 | break; |
---|
146 | |
---|
147 | |
---|
148 | case 8: |
---|
149 | |
---|
150 | theElement = man->FindOrBuildElement("O"); |
---|
151 | theMaterial = man->FindOrBuildMaterial("G4_O"); |
---|
152 | g4Xrad = theMaterial->GetRadlen(); |
---|
153 | break; |
---|
154 | |
---|
155 | case 13: |
---|
156 | |
---|
157 | theElement = man->FindOrBuildElement("Al"); |
---|
158 | theMaterial = man->FindOrBuildMaterial("G4_Al"); |
---|
159 | g4Xrad = theMaterial->GetRadlen(); |
---|
160 | expXrad = 8.9*cm; |
---|
161 | break; |
---|
162 | |
---|
163 | case 14: |
---|
164 | |
---|
165 | theElement = man->FindOrBuildElement("Si"); |
---|
166 | theMaterial = man->FindOrBuildMaterial("G4_Si"); |
---|
167 | g4Xrad = theMaterial->GetRadlen(); |
---|
168 | break; |
---|
169 | |
---|
170 | case 18: |
---|
171 | |
---|
172 | theElement = man->FindOrBuildElement("Ar"); |
---|
173 | theMaterial = man->FindOrBuildMaterial("G4_Ar"); |
---|
174 | break; |
---|
175 | |
---|
176 | case 26: |
---|
177 | |
---|
178 | theElement = man->FindOrBuildElement("Fe"); |
---|
179 | theMaterial = man->FindOrBuildMaterial("G4_Fe"); |
---|
180 | g4Xrad = theMaterial->GetRadlen(); |
---|
181 | expXrad = 1.76*cm; |
---|
182 | break; |
---|
183 | |
---|
184 | case 29: |
---|
185 | |
---|
186 | theElement = man->FindOrBuildElement("Cu"); |
---|
187 | theMaterial = man->FindOrBuildMaterial("G4_Cu"); |
---|
188 | g4Xrad = theMaterial->GetRadlen(); |
---|
189 | break; |
---|
190 | |
---|
191 | case 48: |
---|
192 | |
---|
193 | theElement = man->FindOrBuildElement("Cd"); |
---|
194 | theMaterial = man->FindOrBuildMaterial("G4_Cd"); |
---|
195 | g4Xrad = theMaterial->GetRadlen(); |
---|
196 | break; |
---|
197 | |
---|
198 | |
---|
199 | case 54: |
---|
200 | |
---|
201 | theElement = man->FindOrBuildElement("Xe"); |
---|
202 | theMaterial = man->FindOrBuildMaterial("G4_Xe"); |
---|
203 | g4Xrad = theMaterial->GetRadlen(); |
---|
204 | break; |
---|
205 | |
---|
206 | |
---|
207 | case 74: |
---|
208 | |
---|
209 | theElement = man->FindOrBuildElement("W"); |
---|
210 | theMaterial = man->FindOrBuildMaterial("G4_W"); |
---|
211 | g4Xrad = theMaterial->GetRadlen(); |
---|
212 | expXrad = 0.35*cm; |
---|
213 | break; |
---|
214 | |
---|
215 | case 77: |
---|
216 | |
---|
217 | theElement = man->FindOrBuildElement("Ir"); |
---|
218 | theMaterial = man->FindOrBuildMaterial("G4_Ir"); |
---|
219 | g4Xrad = theMaterial->GetRadlen(); |
---|
220 | break; |
---|
221 | |
---|
222 | case 82: |
---|
223 | |
---|
224 | theElement = man->FindOrBuildElement("Pb"); |
---|
225 | theMaterial = man->FindOrBuildMaterial("G4_Pb"); |
---|
226 | g4Xrad = theMaterial->GetRadlen(); |
---|
227 | expXrad = 0.56*cm; |
---|
228 | break; |
---|
229 | |
---|
230 | case 92: |
---|
231 | |
---|
232 | theElement = man->FindOrBuildElement("U"); |
---|
233 | theMaterial = man->FindOrBuildMaterial("G4_U"); |
---|
234 | g4Xrad = theMaterial->GetRadlen(); |
---|
235 | expXrad = 0.35*cm; |
---|
236 | break; |
---|
237 | } |
---|
238 | |
---|
239 | // Particle definition |
---|
240 | |
---|
241 | |
---|
242 | G4cout << " 0 gamma" << G4endl; |
---|
243 | G4cout << " 1 electron" << G4endl; |
---|
244 | G4cout << " 2 proton" << G4endl; |
---|
245 | G4cout << " 3 pion+" << G4endl; |
---|
246 | G4cout << " 4 pion-" << G4endl; |
---|
247 | G4cout << " 4 muon+" << G4endl; |
---|
248 | G4cout << " 5 muon-" << G4endl; |
---|
249 | |
---|
250 | // G4cin >> choice; |
---|
251 | choice = 0; |
---|
252 | |
---|
253 | G4ParticleDefinition* theParticleDefinition; |
---|
254 | |
---|
255 | |
---|
256 | switch (choice) |
---|
257 | { |
---|
258 | case 0: |
---|
259 | |
---|
260 | theParticleDefinition = G4Gamma::GammaDefinition(); |
---|
261 | break; |
---|
262 | |
---|
263 | case 1: |
---|
264 | |
---|
265 | theParticleDefinition = G4Electron::ElectronDefinition(); |
---|
266 | break; |
---|
267 | |
---|
268 | case 2: |
---|
269 | |
---|
270 | theParticleDefinition = G4Proton::ProtonDefinition(); |
---|
271 | break; |
---|
272 | |
---|
273 | case 3: |
---|
274 | |
---|
275 | theParticleDefinition = G4PionPlus::PionPlusDefinition(); |
---|
276 | break; |
---|
277 | |
---|
278 | case 4: |
---|
279 | |
---|
280 | theParticleDefinition = G4PionMinus::PionMinusDefinition(); |
---|
281 | break; |
---|
282 | |
---|
283 | case 5: |
---|
284 | |
---|
285 | theParticleDefinition = G4MuonPlus::MuonPlusDefinition(); |
---|
286 | break; |
---|
287 | |
---|
288 | case 6: |
---|
289 | |
---|
290 | theParticleDefinition = G4MuonMinus::MuonMinusDefinition(); |
---|
291 | break; |
---|
292 | |
---|
293 | } |
---|
294 | |
---|
295 | G4double energyMscXR, xsc, kinEnergy; |
---|
296 | |
---|
297 | |
---|
298 | // kinEnergy = 8*GeV; // 25.0*GeV; |
---|
299 | |
---|
300 | kinEnergy = 25.0*GeV; |
---|
301 | |
---|
302 | G4VEmModel* comp = new G4KleinNishinaCompton(); |
---|
303 | // G4VEmModel* comp = new G4HeatedKleinNishinaCompton(); |
---|
304 | G4VEmModel* photo = new G4PEEffectModel(); |
---|
305 | G4VEmModel* pair = new G4PairProductionRelModel(theParticleDefinition,"pp"); |
---|
306 | G4VEmModel* bhpair = new G4BetheHeitlerModel(theParticleDefinition,"bhpp"); |
---|
307 | |
---|
308 | G4DynamicParticle* theDynamicParticle = new G4DynamicParticle(theParticleDefinition, |
---|
309 | G4ParticleMomentum(0.,0.,1.), |
---|
310 | kinEnergy); |
---|
311 | |
---|
312 | G4double m1 = theParticleDefinition->GetPDGMass(); |
---|
313 | G4double plab = theDynamicParticle->GetTotalMomentum(); |
---|
314 | G4cout <<"lab momentum, plab = "<<plab/GeV<<" GeV"<<G4endl; |
---|
315 | G4double plabLowLimit = 20.0*MeV; |
---|
316 | |
---|
317 | G4int Z = G4int(theElement->GetZ()); |
---|
318 | G4int A = G4int(theElement->GetN()+0.5); |
---|
319 | |
---|
320 | G4double step = 4.10*mm; |
---|
321 | |
---|
322 | step = expXrad; |
---|
323 | |
---|
324 | G4double m2 = man->GetAtomicMassAmu(Z)*GeV; |
---|
325 | // G4double m2 = man->GetAtomicMass( Z, A); |
---|
326 | G4cout <<" target mass, m2 = "<<m2/GeV<<" GeV"<<G4endl<<G4endl; |
---|
327 | G4cout <<"step = "<<step<<" mm; g4Xrad = "<<g4Xrad<<" mm; expXrad = " |
---|
328 | <<expXrad<<" mm"<<G4endl<<G4endl; |
---|
329 | |
---|
330 | |
---|
331 | // energyMscXR = 2*MeV; |
---|
332 | //xsc = pair->ComputeCrossSectionPerAtom(theParticleDefinition, energyMscXR, G4double(Z ) ); |
---|
333 | |
---|
334 | |
---|
335 | iMax = 130; |
---|
336 | |
---|
337 | writef<<iMax<<G4endl; |
---|
338 | |
---|
339 | |
---|
340 | |
---|
341 | |
---|
342 | for( i = 0; i < iMax; i++ ) |
---|
343 | { |
---|
344 | energyMscXR = std::exp(i*0.2)*0.001*keV; |
---|
345 | // xsc = comp->ComputeCrossSectionPerAtom(theParticleDefinition,energyMscXR,G4double(Z ) ); |
---|
346 | // xsc = photo->ComputeCrossSectionPerAtom(theParticleDefinition, energyMscXR, G4double(Z ) ); |
---|
347 | // xsc = pair->ComputeCrossSectionPerAtom(theParticleDefinition, energyMscXR, G4double(Z ) ); |
---|
348 | xsc = bhpair->ComputeCrossSectionPerAtom(theParticleDefinition, energyMscXR, G4double(Z ) ); |
---|
349 | G4cout<<energyMscXR/MeV<<"\t\t"<<xsc/barn<<G4endl; |
---|
350 | writef<<energyMscXR/MeV<<"\t\t"<<xsc/barn<<G4endl; |
---|
351 | } |
---|
352 | |
---|
353 | |
---|
354 | |
---|
355 | |
---|
356 | |
---|
357 | return 1; |
---|
358 | } // end of main |
---|