source: trunk/source/processes/electromagnetic/lowenergy/test/G4BremsstrahlungTest.cc@ 1201

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[1199]1//
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25//
26//
27// $Id: G4BremsstrahlungTest.cc,v 1.14 2006/06/29 19:43:41 gunter Exp $
28// GEANT4 tag $Name: geant4-09-03-cand-01 $
29//
30// -------------------------------------------------------------------
31// GEANT 4 class file --- Copyright CERN 1998
32// CERN Geneva Switzerland
33//
34//
35// File name: G4BremsstrahlungTest
36//
37// Author: Maria Grazia Pia
38//
39// Creation date: 20 June 2000
40//
41// Modifications:
42//
43// -------------------------------------------------------------------
44
45#include "globals.hh"
46#include "G4ios.hh"
47#include <fstream>
48#include <iomanip>
49
50#include "G4Material.hh"
51#include "G4VContinuousDiscreteProcess.hh"
52#include "G4ProcessManager.hh"
53#include "G4LowEnergyBremsstrahlung.hh"
54#include "G4eBremsstrahlung.hh"
55#include "G4EnergyLossTables.hh"
56#include "G4VParticleChange.hh"
57#include "G4ParticleChange.hh"
58#include "G4DynamicParticle.hh"
59#include "G4Electron.hh"
60#include "G4Positron.hh"
61#include "G4Gamma.hh"
62
63#include "G4Box.hh"
64#include "G4PVPlacement.hh"
65
66#include "G4Step.hh"
67#include "G4GRSVolume.hh"
68
69#include "G4UnitsTable.hh"
70#include "CLHEP/Hist/TupleManager.h"
71#include "CLHEP/Hist/HBookFile.h"
72#include "CLHEP/Hist/Histogram.h"
73#include "CLHEP/Hist/Tuple.h"
74
75HepTupleManager* hbookManager;
76
77int main()
78{
79
80 // Setup
81
82 G4int nIterations = 100000;
83 G4int materialId = 3;
84 G4int test = 0;
85
86 G4cout.setf( ios::scientific, ios::floatfield );
87
88 // -------------------------------------------------------------------
89
90 // ---- HBOOK initialization
91
92
93 hbookManager = new HBookFile("bremtest.hbook", 58);
94 assert (hbookManager != 0);
95
96 // ---- Book a histogram and ntuples
97 G4cout<<"Hbook file name: "<<((HBookFile*) hbookManager)->filename()<<endl;
98
99 // ---- primary ntuple ------
100 HepTuple* ntuple1 = hbookManager->ntuple("Primary Ntuple");
101 assert (ntuple1 != 0);
102
103 // ---- secondary ntuple ------
104 HepTuple* ntuple2 = hbookManager->ntuple("Secondary Ntuple");
105 assert (ntuple2 != 0);
106
107 // ---- secondaries histos ----
108 HepHistogram* hEKin;
109 hEKin = hbookManager->histogram("Kinetic Energy", 100,0.,200.);
110 assert (hEKin != 0);
111
112 HepHistogram* hP;
113 hP = hbookManager->histogram("Momentum", 100,0.,1000.);
114 assert (hP != 0);
115
116 HepHistogram* hNSec;
117 hNSec = hbookManager->histogram("Number of secondaries", 40,0.,40.);
118 assert (hNSec != 0);
119
120 HepHistogram* hDebug;
121 hDebug = hbookManager->histogram("Debug", 100,0.,200.);
122 assert (hDebug != 0);
123
124
125 //--------- Materials definition ---------
126
127 G4Material* Be = new G4Material("Beryllium", 4., 9.01*g/mole, 1.848*g/cm3);
128 G4Material* Graphite = new G4Material("Graphite",6., 12.00*g/mole, 2.265*g/cm3 );
129 G4Material* Al = new G4Material("Aluminium", 13., 26.98*g/mole, 2.7 *g/cm3);
130 G4Material* Si = new G4Material("Silicon", 14., 28.055*g/mole, 2.33*g/cm3);
131 G4Material* LAr = new G4Material("LArgon", 18., 39.95*g/mole, 1.393*g/cm3);
132 G4Material* Fe = new G4Material("Iron", 26., 55.85*g/mole, 7.87*g/cm3);
133 G4Material* Cu = new G4Material("Copper", 29., 63.55*g/mole, 8.96*g/cm3);
134 G4Material* W = new G4Material("Tungsten", 74., 183.85*g/mole, 19.30*g/cm3);
135 G4Material* Pb = new G4Material("Lead", 82., 207.19*g/mole, 11.35*g/cm3);
136 G4Material* U = new G4Material("Uranium", 92., 238.03*g/mole, 18.95*g/cm3);
137
138 G4Element* H = new G4Element ("Hydrogen", "H", 1. , 1.01*g/mole);
139 G4Element* O = new G4Element ("Oxygen" , "O", 8. , 16.00*g/mole);
140 G4Element* C = new G4Element ("Carbon" , "C", 6. , 12.00*g/mole);
141 G4Element* Cs = new G4Element ("Cesium" , "Cs", 55. , 132.905*g/mole);
142 G4Element* I = new G4Element ("Iodide" , "I", 53. , 126.9044*g/mole);
143
144 G4Material* maO = new G4Material("Oxygen", 8., 16.00*g/mole, 1.1*g/cm3);
145
146 G4Material* water = new G4Material ("Water" , 1.*g/cm3, 2);
147 water->AddElement(H,2);
148 water->AddElement(O,1);
149
150 G4Material* ethane = new G4Material ("Ethane" , 0.4241*g/cm3, 2);
151 ethane->AddElement(H,6);
152 ethane->AddElement(C,2);
153
154 G4Material* csi = new G4Material ("CsI" , 4.53*g/cm3, 2);
155 csi->AddElement(Cs,1);
156 csi->AddElement(I,1);
157
158
159 // Interactive set-up
160
161 G4cout << "Test AlongStepDoIt [1] or PostStepDoIt [2] ?" << G4endl;
162 cin >> test;
163 if ( !(test == 1 || test == 2)) G4Exception("Wrong input");
164
165 G4cout << "How many interactions? " << G4endl;
166 G4cin >> nIterations;
167
168 if (nIterations <= 0) G4Exception("Wrong input");
169
170 G4double initEnergy = 1*MeV;
171 G4double initX = 0.;
172 G4double initY = 0.;
173 G4double initZ = 1.;
174
175 G4cout << "Enter the initial particle energy E (MeV)" << G4endl;
176 G4cin >> initEnergy ;
177
178 initEnergy = initEnergy * MeV;
179
180 if (initEnergy <= 0.) G4Exception("Wrong input");
181
182 static const G4MaterialTable* theMaterialTable = G4Material::GetMaterialTable();
183
184 G4int nMaterials = G4Material::GetNumberOfMaterials();
185
186 G4cout << "Available materials are: " << G4endl;
187 for (G4int mat = 0; mat < nMaterials; mat++)
188 {
189 G4cout << mat << ") "
190 << (*theMaterialTable)[mat]->GetName()
191 << G4endl;
192 }
193
194 G4cout << "Which material? " << G4endl;
195 G4cin >> materialId;
196
197 G4Material* material = (*theMaterialTable)[materialId] ;
198
199 G4cout << "The selected material is: "
200 << material->GetName()
201 << G4endl;
202
203 G4double dimX = 1*mm;
204 G4double dimY = 1*mm;
205 G4double dimZ = 1*mm;
206
207 // Geometry
208
209 G4Box* theFrame = new G4Box ("Frame",dimX, dimY, dimZ);
210
211 G4LogicalVolume* logicalFrame = new G4LogicalVolume(theFrame,
212 (*theMaterialTable)[materialId],
213 "LFrame", 0, 0, 0);
214 logicalFrame->SetMaterial(material);
215
216 G4PVPlacement* physicalFrame = new G4PVPlacement(0,G4ThreeVector(),
217 "PFrame",logicalFrame,0,false,0);
218
219 // Particle definitions
220
221 G4ParticleDefinition* gamma = G4Gamma::GammaDefinition();
222 G4ParticleDefinition* electron = G4Electron::ElectronDefinition();
223 G4ParticleDefinition* positron = G4Positron::PositronDefinition();
224
225 gamma->SetCuts(1e-3*mm);
226 electron->SetCuts(1e-3*mm);
227 positron->SetCuts(1e-3*mm);
228
229 // Processes
230
231 G4int processType;
232 G4cout << "LowEnergy [1] or Standard [2] Bremsstrahlung?" << G4endl;
233 cin >> processType;
234 if ( !(processType == 1 || processType == 2))
235 {
236 G4Exception("Wrong input");
237 }
238
239 G4VContinuousDiscreteProcess* bremProcess;
240
241 if (processType == 1)
242 {
243 bremProcess = new G4LowEnergyBremsstrahlung;
244 }
245 else
246 {
247 bremProcess = new G4eBremsstrahlung;
248 }
249
250 G4ProcessManager* eProcessManager = new G4ProcessManager(electron);
251 electron->SetProcessManager(eProcessManager);
252 eProcessManager->AddProcess(bremProcess);
253
254 // Create a DynamicParticle
255
256 G4double eEnergy = initEnergy*MeV;
257 G4ParticleMomentum eDirection(initX,initY,initZ);
258 G4DynamicParticle dynamicElectron(G4Electron::Electron(),eDirection,eEnergy);
259
260 // Track
261
262 G4ThreeVector aPosition(0.,0.,0.);
263 G4ThreeVector newPosition(0.,0.,1.*mm);
264 G4double aTime = 0. ;
265
266 G4Track* eTrack = new G4Track(&dynamicElectron,aTime,aPosition);
267
268 // do I really need this?
269
270 G4GRSVolume* touche = new G4GRSVolume(physicalFrame, 0, aPosition);
271 eTrack->SetTouchable(touche);
272
273 // Step
274
275 G4Step* step = new G4Step();
276 step->SetTrack(eTrack);
277
278 G4StepPoint* aPoint = new G4StepPoint();
279 aPoint->SetPosition(aPosition);
280 aPoint->SetMaterial(material);
281 G4double safety = 10000.*cm;
282 aPoint->SetSafety(safety);
283 step->SetPreStepPoint(aPoint);
284 G4StepPoint* newPoint = new G4StepPoint();
285 newPoint->SetPosition(newPosition);
286 newPoint->SetMaterial(material);
287 step->SetPostStepPoint(newPoint);
288
289 // Check applicability
290
291 if (! (bremProcess->IsApplicable(*electron)))
292 {
293 G4Exception("Not Applicable");
294 }
295
296 // Initialize the physics tables
297
298 bremProcess->BuildPhysicsTable(*electron);
299
300 // --------- Test the DoIt
301
302 G4cout << "DoIt in material " << material->GetName() << G4endl;
303
304 G4int iteration = 0;
305
306
307 for (G4int iter=0; iter<nIterations; iter++)
308 {
309 step->SetStepLength(1*micrometer);
310
311 G4cout << "Iteration = " << iter
312 << " - Step Length = "
313 << step->GetStepLength()/mm << " mm "
314 << G4endl;
315
316 eTrack->SetStep(step);
317
318 G4cout << "Iteration = " << iter
319 << " - Step Length = "
320 << step->GetStepLength()/mm << " mm "
321 << G4endl;
322
323 // G4cout << eTrack->GetStep()->GetStepLength()/mm
324 // << G4endl;
325
326 G4VParticleChange* dummy;
327 if (test == 1) dummy = bremProcess->AlongStepDoIt(*eTrack, *step);
328 if (test == 2) dummy = bremProcess->PostStepDoIt(*eTrack, *step);
329
330 G4ParticleChange* particleChange = (G4ParticleChange*) dummy;
331
332 // Primary physical quantities
333
334 G4double energyChange = particleChange->GetEnergyChange();
335 G4double dedx = initEnergy - energyChange ;
336 G4double dedxNow = dedx / (step->GetStepLength());
337
338 G4ThreeVector eChange = particleChange->CalcMomentum(energyChange,
339 (*particleChange->GetMomentumChange()),
340 particleChange->GetMassChange());
341
342 G4double pxChange = eChange.x();
343 G4double pyChange = eChange.y();
344 G4double pzChange = eChange.z();
345 G4double pChange = std::sqrt(pxChange*pxChange + pyChange*pyChange + pzChange*pzChange);
346
347 G4double xChange = particleChange->GetPositionChange()->x();
348 G4double yChange = particleChange->GetPositionChange()->y();
349 G4double zChange = particleChange->GetPositionChange()->z();
350 G4double thetaChange = particleChange->GetPositionChange()->theta();
351
352 G4cout << "---- Primary after the step ---- " << G4endl;
353
354 // G4cout << "Position (x,y,z) = "
355 // << xChange << " "
356 // << yChange << " "
357 // << zChange << " "
358 // << G4endl;
359
360 G4cout << "---- Energy: " << energyChange/MeV << " MeV, "
361 << "(px,py,pz): ("
362 << pxChange/MeV << ","
363 << pyChange/MeV << ","
364 << pzChange/MeV << ") MeV"
365 << G4endl;
366
367 G4cout << "---- Energy loss (dE) = " << dedx/keV << " keV" << G4endl;
368 // G4cout << "Stopping power (dE/dx)=" << dedxNow << G4endl;
369
370 // Secondaries
371
372 ntuple1->column("eprimary", initEnergy);
373 ntuple1->column("energyf", energyChange);
374 ntuple1->column("de", dedx);
375 ntuple1->column("dedx", dedxNow);
376 ntuple1->column("pxch", xChange);
377 ntuple1->column("pych", pyChange);
378 ntuple1->column("pzch", pzChange);
379 ntuple1->column("pch", zChange);
380 ntuple1->column("thetach", thetaChange);
381 ntuple1->dumpData();
382
383 // Secondaries physical quantities
384
385 hNSec->accumulate(particleChange->GetNumberOfSecondaries());
386 hDebug->accumulate(particleChange->GetLocalEnergyDeposit());
387
388 for (G4int i = 0; i < (particleChange->GetNumberOfSecondaries()); i++)
389 {
390 // The following two items should be filled per event, not
391 // per secondary; filled here just for convenience, to avoid
392 // complicated logic to dump ntuple when there are no secondaries
393
394 G4Track* finalParticle = particleChange->GetSecondary(i) ;
395
396 G4double e = finalParticle->GetTotalEnergy();
397 G4double eKin = finalParticle->GetKineticEnergy();
398 G4double px = (finalParticle->GetMomentum()).x();
399 G4double py = (finalParticle->GetMomentum()).y();
400 G4double pz = (finalParticle->GetMomentum()).z();
401 G4double theta = (finalParticle->GetMomentum()).theta();
402 G4double p = std::sqrt(px*px+py*py+pz*pz);
403
404 if (e > initEnergy)
405 {
406 G4cout << "WARNING: eFinal > eInit " << G4endl;
407 // << e
408 // << " > " initEnergy
409
410 }
411
412 G4String particleName = finalParticle->GetDefinition()->GetParticleName();
413 G4cout << "==== Final "
414 << particleName << " "
415 << "energy: " << e/MeV << " MeV, "
416 << "eKin: " << eKin/MeV << " MeV, "
417 << "(px,py,pz): ("
418 << px/MeV << ","
419 << py/MeV << ","
420 << pz/MeV << ") MeV "
421 << G4endl;
422
423 hEKin->accumulate(eKin);
424 hP->accumulate(p);
425
426 G4int partType = 0;
427 if (particleName == "e-") partType = 1;
428 else if (particleName == "e+") partType = 2;
429 else if (particleName == "gamma") partType = 3;
430
431 // Fill the secondaries ntuple
432 ntuple2->column("eprimary",initEnergy);
433 ntuple2->column("px", px);
434 ntuple2->column("py", py);
435 ntuple2->column("pz", pz);
436 ntuple2->column("p", p);
437 ntuple2->column("e", e);
438 ntuple2->column("theta", theta);
439 ntuple2->column("ekin", eKin);
440 ntuple2->column("type", partType);
441
442 ntuple2->dumpData();
443
444 delete particleChange->GetSecondary(i);
445 }
446
447 particleChange->Clear();
448
449 }
450
451
452 cout << "Iteration number: " << G4endl;
453 hbookManager->write();
454 delete hbookManager;
455
456 // delete materials and elements
457 // delete Be;
458 // delete Graphite;
459 // delete Al;
460 // delete Si;
461 // delete LAr;
462 // delete Fe;
463 // delete Cu;
464 // delete W;
465 // delete Pb;
466 // delete U;
467 // delete H;
468 // delete maO;
469 // delete C;
470 // delete Cs;
471 // delete I;
472 // delete O;
473 // delete water;
474 // delete ethane;
475 // delete csi;
476 // delete step;
477 // delete touche;
478 // delete Be;
479 // delete Graphite;
480 // delete Al;
481 // delete Si;
482 // delete LAr;
483 // delete Fe;
484 // delete Cu;
485 // delete W;
486 // delete Pb;
487 // delete U;
488 // delete H;
489 // delete maO;
490 // delete C;
491 // delete Cs;
492 // delete I;
493 // delete O;
494 // delete water;
495 // delete ethane;
496 // delete csi;
497 delete step;
498 // delete touche;
499
500 cout << "END OF THE MAIN PROGRAM" << G4endl;
501}
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