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25 //
26 // Hadrontherapy advanced example for Geant4
27 // See more at: https://twiki.cern.ch/twiki/bin/view/Geant4/AdvancedExamplesHadrontherapy
28
29 #include "globals.hh"
30 #include "G4SystemOfUnits.hh"
31 #include "G4Box.hh"
32 #include "G4Tubs.hh"
33 #include "G4UnionSolid.hh"
34 #include "G4Trd.hh"
35 #include "G4AssemblyVolume.hh"
36 #include "G4VisAttributes.hh"
37 #include "G4Colour.hh"
38 #include "G4RunManager.hh"
39 #include "G4LogicalVolume.hh"
40 #include "G4PVPlacement.hh"
41 #include "G4PVReplica.hh"
42 #include "G4RotationMatrix.hh"
43 #include "G4NistManager.hh"
44 #include "G4NistElementBuilder.hh"
45 #include "HadrontherapyDetectorConstruction.hh"
46 #include "HadrontherapyTIFPAPassiveProtonBeamLine.hh"
47 #include "HadrontherapyTIFPAPassiveProtonBeamLineMessenger.hh"
48
49 /////////////////////////////////////////////////////////////////////////////
50 TrentoPassiveProtonBeamLine::TrentoPassiveProtonBeamLine():
51 logicTreatmentRoom(0), physicalTreatmentRoom(0),hadrontherapyDetectorConstruction(0),
52 physiBeamLineSupport(0), physiBeamLineCover(0), physiBeamLineCover2(0),
53 physiMonitorLayer1(0), physiMonitorLayer2(0),
54 ScatteringFoil(0), logicScatteringFoil(0), physiScatteringFoil(0), ridgeFilterPhys(0), preCollimator(0), physiPreCollimator(0), Collimator(0), physiCollimator(0), solidAirTube(0), solidAirPreTube(0), physiAirTube(0), physiAirPreTube(0)
55
56
57 {
58 // Messenger to change parameters of the passiveTrentoBeamLine geometry
59 TrentoPassiveMessenger = new TrentoPassiveProtonBeamLineMessenger(this);
60
61 //***************************** PW ***********************************
62 static G4String ROGeometryName = "DetectorROGeometry";
63 RO = new HadrontherapyDetectorROGeometry(ROGeometryName);
64
65 G4cout << "Going to register Parallel world...";
66 RegisterParallelWorld(RO);
67 G4cout << "... done" << G4endl;
68 //********************************************************************
69
70 }
71 /////////////////////////////////////////////////////////////////////////////
72 TrentoPassiveProtonBeamLine::~TrentoPassiveProtonBeamLine()
73 {
74 delete TrentoPassiveMessenger;
75 delete hadrontherapyDetectorConstruction;
76 }
77
78 using namespace std;
79
80 /////////////////////////////////////////////////////////////////////////////
81 G4VPhysicalVolume* TrentoPassiveProtonBeamLine::Construct()
82 {
83 // Sets default geometry and materials
84 SetDefaultDimensions();
85
86 // Construct the whole Passive Beam Line
87 ConstructTrentoPassiveProtonBeamLine();
88
89 //***************************** PW ***************************************
90 if (!hadrontherapyDetectorConstruction)
91
92 // HadrontherapyDetectorConstruction builds ONLY the phantom and the detector with its associated ROGeometry
93 hadrontherapyDetectorConstruction = new HadrontherapyDetectorConstruction(physicalTreatmentRoom);
94
95
96 //********************************************************************
97
98 hadrontherapyDetectorConstruction->InitializeDetectorROGeometry(RO,hadrontherapyDetectorConstruction->GetDetectorToWorldPosition());
99
100 return physicalTreatmentRoom;
101 }
102
103 // In the following method the DEFAULTS used in the geometry of
104 // passive beam line are provided
105 // HERE THE USER CAN CHANGE THE GEOMETRY CHARACTERISTICS OF BEAM
106 // LINE ELEMENTS, ALTERNATIVELY HE/SHE CAN USE THE MACRO FILE (IF A
107 // MESSENGER IS PROVIDED)
108 //
109 // DEFAULT MATERIAL ARE ALSO PROVIDED
110 // and COLOURS ARE ALSO DEFINED
111 // ----------------------------------------------------------
112 /////////////////////////////////////////////////////////////////////////////
113 void TrentoPassiveProtonBeamLine::SetDefaultDimensions()
114 {
115 // Set of coulors that can be used
116 white = new G4VisAttributes( G4Colour());
117 white -> SetVisibility(true);
118 white -> SetForceSolid(true);
119
120 blue = new G4VisAttributes(G4Colour(0. ,0. ,1.));
121 blue -> SetVisibility(true);
122 blue -> SetForceSolid(true);
123
124 gray = new G4VisAttributes( G4Colour(0.5, 0.5, 0.5 ));
125 gray-> SetVisibility(true);
126 gray-> SetForceSolid(true);
127
128 red = new G4VisAttributes(G4Colour(1. ,0. ,0.));
129 red-> SetVisibility(true);
130 red-> SetForceSolid(true);
131
132 yellow = new G4VisAttributes(G4Colour(1., 1., 0. ));
133 yellow-> SetVisibility(true);
134 yellow-> SetForceSolid(true);
135
136 green = new G4VisAttributes( G4Colour(25/255. , 255/255. , 25/255. ));
137 green -> SetVisibility(true);
138 green -> SetForceSolid(true);
139
140 darkGreen = new G4VisAttributes( G4Colour(0/255. , 100/255. , 0/255. ));
141 darkGreen -> SetVisibility(true);
142 darkGreen -> SetForceSolid(true);
143
144 darkOrange3 = new G4VisAttributes( G4Colour(205/255. , 102/255. , 000/255. ));
145 darkOrange3 -> SetVisibility(true);
146 darkOrange3 -> SetForceSolid(false);
147
148 skyBlue = new G4VisAttributes( G4Colour(135/255. , 206/255. , 235/255. ));
149 skyBlue -> SetVisibility(true);
150 skyBlue -> SetForceSolid(true);
151
152
153
154 // SCATTERING FOIL: it is a thin foil that provides the
155 // final diffusion of the beam.
156 G4double defaultScatteringFoilXSize = 0.75*cm;
157 ScatteringFoilXSize = defaultScatteringFoilXSize;
158
159 G4double defaultScatteringFoilYSize = 100*mm;
160 ScatteringFoilYSize = defaultScatteringFoilYSize;
161
162 G4double defaultScatteringFoilZSize = 100 *mm;
163 ScatteringFoilZSize = defaultScatteringFoilZSize;
164
165 G4double defaultScatteringFoilXPosition = -273.*cm;
166 ScatteringFoilXPosition = defaultScatteringFoilXPosition;
167
168 G4double defaultScatteringFoilYPosition = 0 *mm;
169 ScatteringFoilYPosition = defaultScatteringFoilYPosition;
170
171 G4double defaultScatteringFoilZPosition = 0 *mm;
172 ScatteringFoilZPosition = defaultScatteringFoilZPosition;
173
174 //PRE COLLIMATOR: it is a PMMA collimator
175 G4double defaultPreCollimatorXHalfSide = 12.5 * cm;
176 preCollimatorXHalfSide = defaultPreCollimatorXHalfSide;
177
178 G4double defaultPreCollimatorXPosition = -50.*cm;
179 preCollimatorXPosition = defaultPreCollimatorXPosition;
180
181 //DEFAULT DEFINITION OF THE AIR TUBE
182 G4double defaultYHalfSideAirTube= 5.*cm;
183 YHalfSideAirTube = defaultYHalfSideAirTube;
184
185 G4double defaultZHalfSideAirTube = 5.*cm;
186 ZHalfSideAirTube = defaultZHalfSideAirTube;
187
188
189 // DEFAULT DEFINITION OF THE MATERIALS
190 // All elements and compound definition follows the NIST database
191
192 // ELEMENTS
193 G4bool isotopes = false;
194 G4Material* aluminumNist = G4NistManager::Instance()->FindOrBuildMaterial("G4_Al", isotopes);
195 G4Material* copperNist = G4NistManager::Instance()->FindOrBuildMaterial("G4_Cu", isotopes);
196 G4Element* zincNist = G4NistManager::Instance()->FindOrBuildElement("Zn");
197 G4Element* copper = G4NistManager::Instance()->FindOrBuildElement("Cu");
198 G4Element* silicNist = G4NistManager::Instance()->FindOrBuildElement("Si");
199 G4Element* hydrogenNist = G4NistManager::Instance()->FindOrBuildElement("H");
200 G4Element* oxygenNist = G4NistManager::Instance()->FindOrBuildElement("O");
201 G4Element* carbonNist = G4NistManager::Instance()->FindOrBuildElement("C");
202
203 // COMPOUND
204 G4Material* airNist = G4NistManager::Instance()->FindOrBuildMaterial("G4_AIR", isotopes);
205 G4Material* PMMANist = G4NistManager::Instance()->FindOrBuildMaterial("G4_PLEXIGLASS", isotopes);
206 G4Material* MylarNist = G4NistManager::Instance()->FindOrBuildMaterial("G4_MYLAR");
207
208 G4int nComponents; // Number of components
209 G4int nAtoms; //Number of atoms
210 G4double fractionmass; // Fraction in mass of an element in a material
211
212 //Quartz
213 G4Material* SiO2 = new G4Material("quartz", 2.200*g/cm3, nComponents=2);
214 SiO2->AddElement(silicNist, nAtoms=1);
215 SiO2->AddElement(oxygenNist , nAtoms=2);
216
217 //Epoxy (for FR4 )
218 G4Material* Epoxy = new G4Material("Epoxy" , 1.2*g/cm3, nComponents=2);
219 Epoxy->AddElement(hydrogenNist, nAtoms=2);
220 Epoxy->AddElement(carbonNist, nAtoms=2);
221
222 //FR4 (Glass + Epoxy)
223 G4Material* FR4 = new G4Material("FR4" , 1.86*g/cm3, nComponents=2);
224 FR4->AddMaterial(SiO2, fractionmass=0.528);
225 FR4->AddMaterial(Epoxy, fractionmass=0.472);
226
227 //Brass
228 G4Material* brass = new G4Material("Brass", 8.40*g/cm3, nComponents=2);
229 brass -> AddElement(zincNist, fractionmass = 30 *perCent);
230 brass -> AddElement(copper, fractionmass = 70 *perCent);
231
232 //Plastic
233 G4Material* plastic = new G4Material("Plastic", 1.40*g/cm3, nComponents=3);
234 plastic -> AddElement(carbonNist, nAtoms = 21);
235 plastic -> AddElement(oxygenNist, nAtoms = 4);
236 plastic -> AddElement(hydrogenNist, nAtoms = 24);
237
238
239 //***************************** PW ***************************************
240
241 // DetectorROGeometry Material
242 new G4Material("dummyMat", 1., 1.*g/mole, 1.*g/cm3);
243
244
245 // MATERIAL ASSIGNMENT
246 // Support of the beam line
247 beamLineSupportMaterial = aluminumNist;
248
249 // Matreial of the monitor chamber
250 layerMonitorChamberMaterial = MylarNist;
251 layerDefaultMaterial = airNist;
252 internalStructureMaterial = FR4;
253 FoilMaterial = copperNist;
254 airgapMaterial = airNist;
255
256 // Material of the scattering foil
257 ScatteringFoilMaterial = copperNist;
258
259 //Material of the ridge filter
260 singleTrapMaterial = plastic;
261
262 // Materials of the collimators
263 preCollimatorMaterial = PMMANist;
264 CollimatorMaterial = brass;
265
266 // Material of the final brass tube
267 airTubeMaterial = airTube2Material = airTube3Material = airNist;
268
269 }
270
271 /////////////////////////////////////////////////////////////////////////////
272 void TrentoPassiveProtonBeamLine::ConstructTrentoPassiveProtonBeamLine()
273 {
274 // -----------------------------
275 // Treatment room - World volume
276 //------------------------------
277 // Treatment room sizes
278 const G4double worldX = 400.0 *cm;
279 const G4double worldY = 400.0 *cm;
280 const G4double worldZ = 400.0 *cm;
281 G4bool isotopes = false;
282
283 G4Material* airNist = G4NistManager::Instance()->FindOrBuildMaterial("G4_AIR", isotopes);
284
285 G4Box* treatmentRoom = new G4Box("TreatmentRoom",
286 worldX,
287 worldY,
288 worldZ);
289
290 logicTreatmentRoom = new G4LogicalVolume(treatmentRoom,
291 airNist,
292 "logicTreatmentRoom",
293 0,0,0);
294
295 physicalTreatmentRoom = new G4PVPlacement(0,
296 G4ThreeVector(),
297 "physicalTreatmentRoom",
298 logicTreatmentRoom,
299 0,
300 false,
301 0);
302
303
304 // The treatment room is invisible in the Visualisation
305 logicTreatmentRoom -> SetVisAttributes (G4VisAttributes::GetInvisible());
306
307 // Components of the Passive Proton Beam Line
308 HadrontherapyBeamLineSupport();
309 HadrontherapyBeamMonitoring();
310 HadrontherapyBeamScatteringFoils();
311 HadrontherapyRidgeFilter();
312 HadrontherapyBeamCollimators();
313
314 }
315
316 /////////////////////////////////////////////////////////////////////////////
317 void TrentoPassiveProtonBeamLine::HadrontherapyBeamLineSupport()
318 {
319 // ------------------//
320 // BEAM LINE SUPPORT //
321 //-------------------//
322 const G4double beamLineSupportXSize = 1.2*m;
323 const G4double beamLineSupportYSize = 20.*mm;
324 const G4double beamLineSupportZSize = 600.*mm;
325
326 const G4double beamLineSupportXPosition = -1745.09 *mm;
327 const G4double beamLineSupportYPosition = -230. *mm;
328 const G4double beamLineSupportZPosition = 0.*mm;
329
330 G4Box* beamLineSupport = new G4Box("BeamLineSupport",
331 beamLineSupportXSize,
332 beamLineSupportYSize,
333 beamLineSupportZSize);
334
335 G4LogicalVolume* logicBeamLineSupport = new G4LogicalVolume(beamLineSupport,
336 beamLineSupportMaterial,
337 "BeamLineSupport");
338
339 physiBeamLineSupport = new G4PVPlacement(0, G4ThreeVector(beamLineSupportXPosition,
340 beamLineSupportYPosition,
341 beamLineSupportZPosition),
342 "BeamLineSupport",
343 logicBeamLineSupport,
344 physicalTreatmentRoom,
345 false,
346 0);
347
348 // Visualisation attributes of the beam line support
349 logicBeamLineSupport -> SetVisAttributes(gray);
350
351 //---------------------------------//
352 // Beam line cover 1 (left panel) //
353 //---------------------------------//
354 const G4double beamLineCoverXSize = 1.2*m;
355 const G4double beamLineCoverYSize = 750.*mm;
356 const G4double beamLineCoverZSize = 10.*mm;
357
358 const G4double beamLineCoverXPosition = -1745.09 *mm;
359 const G4double beamLineCoverYPosition = -1000.*mm;
360 const G4double beamLineCoverZPosition = 600.*mm;
361
362 G4Box* beamLineCover = new G4Box("BeamLineCover",
363 beamLineCoverXSize,
364 beamLineCoverYSize,
365 beamLineCoverZSize);
366
367 G4LogicalVolume* logicBeamLineCover = new G4LogicalVolume(beamLineCover,
368 beamLineSupportMaterial,
369 "BeamLineCover");
370
371 physiBeamLineCover = new G4PVPlacement(0, G4ThreeVector(beamLineCoverXPosition,
372 beamLineCoverYPosition,
373 beamLineCoverZPosition),
374 "BeamLineCover",
375 logicBeamLineCover,
376 physicalTreatmentRoom,
377 false,
378 0);
379
380 // ---------------------------------//
381 // Beam line cover 2 (rigth panel) //
382 // ---------------------------------//
383 // It has the same characteristic of beam line cover 1 but set in a different position
384 physiBeamLineCover2 = new G4PVPlacement(0, G4ThreeVector(beamLineCoverXPosition,
385 beamLineCoverYPosition,
386 - beamLineCoverZPosition),
387 "BeamLineCover2",
388 logicBeamLineCover,
389 physicalTreatmentRoom,
390 false,
391 0);
392
393 logicBeamLineCover -> SetVisAttributes(blue);
394 }
395
396 /////////////////////////////////////////////////////////////////////////////
397 void TrentoPassiveProtonBeamLine::HadrontherapyBeamMonitoring()
398 {
399 // ----------------------------
400 // MONITOR CHAMBER
401 // ----------------------------
402 // The monitor chamber is a ionisation chamber
403 // Each chamber consist in a sequence of 2 mm of air and
404 // 8 microm copper layers which contain 800 microm of Fr4 in a box
405 // that has the two layer of Mylar
406
407
408 ////////////////////////////////////////////
409 ///External Structure of the Monitor Chamber
410 ////////////////////////////////////////////
411
412 const G4double monitorXSize = 12.*um;
413 const G4double monitorYSize = 12.7*cm;
414 const G4double monitorZSize = 12.7*cm;
415
416 const G4double shift = 17.*cm;
417
418 const G4double monitorlayer1XPosition = -269.*cm +shift;
419 const G4double monitorlayer2XPosition = -270.4104*cm +shift;
420
421
422 // First Mylar layer of the monitor chamber
423 G4Box* solidMonitorLayer1 = new G4Box("MonitorLayer1",
424 monitorXSize/2,
425 monitorYSize/2,
426 monitorZSize/2);
427
428 G4LogicalVolume* logicMonitorLayer1 = new G4LogicalVolume(solidMonitorLayer1,
429 layerMonitorChamberMaterial,
430 "MonitorLayer1");
431
432 physiMonitorLayer1 = new G4PVPlacement(0,
433 G4ThreeVector(monitorlayer1XPosition, 0.*cm, 0.*cm),
434 "MonitorLayer1",
435 logicMonitorLayer1,
436 physicalTreatmentRoom,
437 false,
438 0);
439
440 // Second Mylar layer of the monitor chamber
441 G4Box* solidMonitorLayer2 = new G4Box("MonitorLayer2",
442 monitorXSize/2,
443 monitorYSize/2,
444 monitorZSize/2);
445
446 G4LogicalVolume* logicMonitorLayer2 = new G4LogicalVolume(solidMonitorLayer2,
447 layerMonitorChamberMaterial,
448 "MonitorLayer2");
449
450 physiMonitorLayer2 = new G4PVPlacement(0,
451 G4ThreeVector(monitorlayer2XPosition, 0.*cm, 0.*cm),
452 "MonitorLayer2",
453 logicMonitorLayer2,
454 physicalTreatmentRoom,
455 false,
456 0);
457
458 logicMonitorLayer1 -> SetVisAttributes(gray);
459 logicMonitorLayer2 -> SetVisAttributes(gray);
460
461
462 ///////////////////////////////////////////
463 // Internal Structure of the Monitor Chamber
464 ////////////////////////////////////////////
465
466 const G4double layerThickness = 816*um;
467 const G4double layerXposition = -270.2684*cm;
468 const G4int nofLayers = 5;
469 const G4double internalStructureThickness = 800.*um;
470 const G4double airGapThickness = 2.*mm;
471 const G4double foilThickness = 8.*um;
472 const G4double FirstCoppperLayerXPosition = -404.*um;
473 const G4double SecondCoppperLayerXPosition = 404.*um;
474 const G4double InternalStructureXPosition = 0.;
475
476 // Air Layer
477 G4VSolid* SolidAirLayer= new G4Box("Layer",
478 layerThickness,
479 monitorYSize/2,
480 monitorZSize/2);
481
482 new G4LogicalVolume(SolidAirLayer,
483 layerDefaultMaterial,
484 "Layer");
485
486
487
488 // First Copper Layer
489 G4VSolid* SolidFirstCoppperLayer = new G4Box("SolidFirstCoppperLayer",
490 foilThickness/2,
491 monitorYSize/2,
492 monitorZSize/2);
493
494 G4LogicalVolume* LogicFirstCoppperLayer = new G4LogicalVolume(
495 SolidFirstCoppperLayer,
496 FoilMaterial,
497 "SolidFirstCoppperLayer");
498
499
500 // Fr4 Internal Layer
501 G4VSolid* SolidInternalStructure = new G4Box("SolidInternalStructure",
502 internalStructureThickness/2,
503 monitorYSize/2,
504 monitorZSize/2);
505
506 G4LogicalVolume* LogicInternalStructure = new G4LogicalVolume(
507 SolidInternalStructure,
508 internalStructureMaterial,
509 "SolidInternalStructure");
510
511
512
513 // Second Copper Layer
514 G4VSolid* SolidSecondCoppperLayer = new G4Box("SolidSecondCoppperLayer",
515 foilThickness/2,
516 monitorYSize/2,
517 monitorZSize/2); // its size
518
519 G4LogicalVolume* LogicSecondCoppperLayer= new G4LogicalVolume(
520 SolidSecondCoppperLayer,
521 FoilMaterial,
522 "SolidSecondCoppperLayer");
523
524
525 G4RotationMatrix Ra, Rm;
526 G4ThreeVector Ta;
527 G4Transform3D Tr;
528 G4AssemblyVolume* assemblyMonitor = new G4AssemblyVolume();
529
530
531 Ta.setX(FirstCoppperLayerXPosition); Ta.setY(0.); Ta.setZ(0.);
532 Tr = G4Transform3D(Ra,Ta);
533 assemblyMonitor->AddPlacedVolume(LogicFirstCoppperLayer, Tr);
534
535 Ta.setX(InternalStructureXPosition); Ta.setY(0.); Ta.setZ(0.);
536 Tr = G4Transform3D(Ra,Ta);
537 assemblyMonitor->AddPlacedVolume(LogicInternalStructure, Tr );
538
539 Ta.setX(SecondCoppperLayerXPosition); Ta.setY(0.); Ta.setZ(0.);
540 Tr = G4Transform3D(Ra,Ta);
541
542 assemblyMonitor->AddPlacedVolume(LogicSecondCoppperLayer, Tr );
543
544
545 for( unsigned int i = 0; i<nofLayers; i++ )
546 {
547 G4ThreeVector Tm(shift+layerXposition + i*(airGapThickness), 0., 0.);
548 Tr = G4Transform3D(Rm,Tm);
549 assemblyMonitor -> MakeImprint(logicTreatmentRoom, Tr);
550 }
551
552 }
553
554
555 void TrentoPassiveProtonBeamLine::HadrontherapyBeamScatteringFoils()
556 {
557
558 // ---------------------------//
559 // SCATTERING FOIL //
560 // ---------------------------//
561 // It is a metal foil and provides the
562 // initial diffusion of the beam.
563
564
565
566 ScatteringFoil = new G4Box("ScatteringFoil",
567 ScatteringFoilXSize,
568 ScatteringFoilYSize,
569 ScatteringFoilZSize);
570
571
572 logicScatteringFoil = new G4LogicalVolume(ScatteringFoil,
573 ScatteringFoilMaterial,
574 "ScatteringFoil");
575
576 physiScatteringFoil = new G4PVPlacement(0, G4ThreeVector(ScatteringFoilXPosition,
577 ScatteringFoilYPosition,
578 ScatteringFoilZPosition),
579 "SeconScatteringFoil",
580 logicScatteringFoil,
581 physicalTreatmentRoom,
582 false,
583 0);
584
585 logicScatteringFoil -> SetVisAttributes(skyBlue);
586 }
587
588 void TrentoPassiveProtonBeamLine::HadrontherapyRidgeFilter()
589 {
590 // ---------------------------- //
591 // THE Ridge Filter //
592 // -----------------------------//
593 // Energy degreader of
594 // primary beam. Made of a series of pin-substructures.
595
596
597 G4double ridgeXPosition = -200*cm;
598
599 const G4double XBase = 0.1 *mm;
600 const G4double YBase = 38.75*mm;
601
602 G4VSolid* RidgeBase = new G4Box("Base_RidgeFilter",
603 XBase,
604 YBase,
605 YBase);
606
607 G4LogicalVolume* RidgeBaseLog = new G4LogicalVolume(RidgeBase,
608 singleTrapMaterial,
609 "Base_RidgeFilter");
610
611 new G4PVPlacement(0,
612 G4ThreeVector(
613 -199.7*cm,
614 0.,
615 0.),
616 "Base_RidgeFilter",
617 RidgeBaseLog,
618 physicalTreatmentRoom,
619 false,
620 0);
621
622 RidgeBaseLog->SetVisAttributes(yellow);
623
624
625
626 G4double x0 = 1.215*mm;
627 G4double x1 = 1*mm;
628 G4double x2 = 0.95*mm;
629 G4double x3 = 0.87*mm;
630 G4double x4 = 0.76*mm;
631 G4double x5 = 0.71*mm;
632 G4double x6 = 0.65*mm;
633 G4double x7 = 0.56*mm;
634 G4double x8 = 0.529*mm;
635 G4double x9 = 0.258*mm;
636 G4double x10 = 0.225*mm;
637 G4double x11 = 0.144*mm;
638 G4double x12 = 0.055*mm;
639
640 G4double heigth = 0.13*mm;
641 G4double heigth0 = 0.11*mm;
642 G4double heigth1 = 2.3*mm;
643 G4double heigth2 = 0.65*mm;
644 G4double heigth3 = 1.9*mm;
645 G4double heigth4 = 0.615*mm;
646 G4double heigth5 = 2.23*mm;
647 G4double heigth6 = 0.3*mm;
648 G4double heigth7 = 4.1*mm;
649 G4double heigth8 = 0.1*mm;
650 G4double heigth9 = 0.105*mm;
651 G4double heigth10 = 0.065*mm;
652
653 G4VSolid* Trap00 = new G4Trd("singleTrap00", x0, x1, x0, x1, heigth);
654 G4VSolid* Trap0 = new G4Trd("singleTrap0", x1, x2, x1, x2, heigth0);
655 G4VSolid* Trap1 = new G4Trd("singleTrap1", x2, x3, x2, x3, heigth1);
656 G4VSolid* Trap2 = new G4Trd("singleTrap2", x3, x4, x3, x4, heigth2);
657 G4VSolid* Trap3 = new G4Trd("singleTrap3", x4, x5, x4, x5, heigth3);
658 G4VSolid* Trap4 = new G4Trd("singleTrap4", x5, x6, x5, x6, heigth4);
659 G4VSolid* Trap5 = new G4Trd("singleTrap5", x6, x7, x6, x7, heigth5);
660 G4VSolid* Trap6 = new G4Trd("singleTrap6", x7, x8, x7, x8, heigth6);
661 G4VSolid* Trap7 = new G4Trd("singleTrap7", x8, x9, x8, x9, heigth7);
662 G4VSolid* Trap8 = new G4Trd("singleTrap8", x9, x10, x9, x10, heigth8);
663 G4VSolid* Trap9 = new G4Trd("singleTrap9", x10, x11, x10, x11, heigth9);
664 G4VSolid* Trap10 = new G4Trd("singleTrap10", x11, x12, x11, x12, heigth10);
665
666
667 G4ThreeVector tr0(0., 0., 0.24);
668 G4ThreeVector tr1(0., 0., 2.54);
669 G4ThreeVector tr2(0., 0., 2.55);
670 G4ThreeVector tr3(0., 0., 2.845);
671 G4ThreeVector tr4(0., 0., 4.4);
672
673 G4RotationMatrix* yRot = new G4RotationMatrix;
674 yRot->rotateY(0);
675 G4UnionSolid* unionTrap00 = new G4UnionSolid("Trap01", Trap00, Trap0, yRot, tr0);
676 G4UnionSolid* unionTrap01 = new G4UnionSolid("Trap01", unionTrap00, Trap1, yRot, tr1);
677 G4UnionSolid* unionTrap23 = new G4UnionSolid("Trap23", Trap2, Trap3, yRot, tr2);
678 G4UnionSolid* unionTrap45 = new G4UnionSolid("Trap45", Trap4, Trap5, yRot, tr3);
679 G4UnionSolid* unionTrap67 = new G4UnionSolid("Trap67", Trap6, Trap7, yRot, tr4);
680
681 G4ThreeVector tr03(0., 0., 5.09);
682 G4UnionSolid* unionTrap03 = new G4UnionSolid("unionTrap03", unionTrap01, unionTrap23, yRot, tr03);
683
684 G4ThreeVector tr05(0., 0., 7.935);
685 G4UnionSolid* unionTrap05 = new G4UnionSolid("unionTrap05", unionTrap03, unionTrap45, yRot, tr05);
686
687 G4ThreeVector tr_blocco1(0., 0., 12.335);
688 G4UnionSolid* unionTrap_blocco1 = new G4UnionSolid("unionTrap_blocco1", unionTrap05, unionTrap67, yRot, tr_blocco1);
689
690 G4ThreeVector tr_blocco2( 0., 0., 12.435);
691 G4UnionSolid* unionTrap_blocco2 = new G4UnionSolid("unionTrap_blocco2", unionTrap_blocco1, Trap8, yRot, tr_blocco2);
692
693 G4ThreeVector tr_blocco3(0., 0., 12.54);
694 G4UnionSolid* unionTrap_blocco3 = new G4UnionSolid("unionTrap_blocco3", unionTrap_blocco2, Trap9, yRot, tr_blocco3);
695
696 G4ThreeVector tr_tot( 0., 0., 12.605);
697 G4UnionSolid* unionTrap = new G4UnionSolid("unionTrap", unionTrap_blocco3, Trap10, yRot, tr_tot);
698
699
700 G4LogicalVolume* singleTrapLog = new G4LogicalVolume(unionTrap, singleTrapMaterial, "singleTrap");
701
702
703 singleTrapLog->SetVisAttributes(yellow);
704
705
706 G4int numberOfLayers = 31;
707 G4double minZ = -37.5*mm;
708 G4double minY = -37.5*mm;
709 G4double sum_space = 1.25*mm;
710
711 vector<G4ThreeVector> singleTrapPositions;
712
713 for (int i = 0; i < numberOfLayers; i++)
714 {
715 for (int j = 0; j < numberOfLayers; j++)
716 {
717 singleTrapPositions.push_back({-0.01*cm+ridgeXPosition,
718 minY + 2*i*sum_space,
719 minZ + 2*j*sum_space,});
720 }
721 }
722
723 G4double ti = - 90. *deg;
724 G4RotationMatrix rt;
725 rt.rotateY(ti);
726
727 G4int peaks = numberOfLayers*numberOfLayers;
728 for (int i = 0; i < peaks; i++)
729 {
730
731 ostringstream tName;tName << "singleTrap" << i;
732 new G4PVPlacement(G4Transform3D(rt,
733 singleTrapPositions[i]),
734 singleTrapLog,
735 "tName.str()",
736 logicTreatmentRoom,
737 0,
738 i);
739
740 }
741
742
743 }
744
745 void TrentoPassiveProtonBeamLine::HadrontherapyBeamCollimators()
746 {
747
748 // ------------------------//
749 // PRE - COLLIMATOR //
750 // -----------------------//
751 // It is a plastic collimator to limit neutron dose and reduce activation
752
753 const G4double preCollimatorYHalfSide = 10.*cm;
754 const G4double preCollimatorZHalfSide = 10.*cm;
755
756 preCollimator = new G4Box("PreCollimator",
757 preCollimatorXHalfSide,
758 preCollimatorYHalfSide,
759 preCollimatorZHalfSide);
760
761
762 G4LogicalVolume* logicPreCollimator = new G4LogicalVolume(preCollimator,
763 preCollimatorMaterial,
764 "PreCollimator");
765
766
767 physiPreCollimator = new G4PVPlacement(0,
768 G4ThreeVector(
769 -50.*cm,
770 0.,
771 0.),
772 "PreCollimator",
773 logicPreCollimator,
774 physicalTreatmentRoom,
775 false,
776 0);
777
778
779
780 logicPreCollimator -> SetVisAttributes(white);
781
782
783 // -----------------//
784 // COLLIMATOR //
785 // -----------------//
786 // It is a brass collimator
787
788
789 G4double collimatorYHalfSide = 10.*cm;
790 G4double collimatorZHalfSide = 10.*cm;
791 G4double collimatorXHalfSide = 3.25*cm;
792
793 G4double CollimatorXPosition = -34.25*cm;
794
795 Collimator = new G4Box("Collimator",
796 collimatorXHalfSide,
797 collimatorYHalfSide,
798 collimatorZHalfSide);
799
800
801 G4LogicalVolume* logicCollimator = new G4LogicalVolume(Collimator,
802 CollimatorMaterial,
803 "Collimator");
804
805
806
807 physiCollimator = new G4PVPlacement(0, G4ThreeVector(CollimatorXPosition,
808 0.,
809 0.),
810 "Collimator",
811 logicCollimator,
812 physicalTreatmentRoom,
813 false,
814 0);
815
816
817
818 logicCollimator -> SetVisAttributes(darkGreen);
819
820
821
822 // ---------------------------------//
823 // AIR BOX Collimator //
824 // ---------------------------------//
825
826
827 solidAirTube = new G4Box("AirTube",
828 collimatorXHalfSide,
829 YHalfSideAirTube,
830 ZHalfSideAirTube);
831
832 G4LogicalVolume* logicAirTube = new G4LogicalVolume(solidAirTube,
833 airTubeMaterial,
834 "AirTube",
835 0, 0, 0);
836
837
838 physiAirTube = new G4PVPlacement(0, G4ThreeVector(0,
839 0.,
840 0.),
841 "AirTube",
842 logicAirTube,
843 physiCollimator,
844 false,
845 0);
846
847 logicAirTube -> SetVisAttributes(darkOrange3);
848
849
850
851 // // ---------------------------------//
852 // // AIR BOX PreCollimator //
853 // // ---------------------------------//
854
855
856 solidAirPreTube = new G4Box("AirPreTube",
857 preCollimatorXHalfSide,
858 YHalfSideAirTube,
859 ZHalfSideAirTube);
860
861 G4LogicalVolume* logicAirPreTube = new G4LogicalVolume(solidAirPreTube,
862 airTubeMaterial,
863 "AirPreTube",
864 0, 0, 0);
865
866
867 physiAirPreTube = new G4PVPlacement(0,
868 G4ThreeVector(0,
869 0.,
870 0.),
871 "AirPreTube",
872 logicAirPreTube,
873 physiPreCollimator,
874 false,
875 0);
876
877 logicAirPreTube -> SetVisAttributes(darkOrange3);
878
879
880
881 }
882
883
884 /////////////////////////////////////////////////////////////////////////////
885 /////////////////////////// MESSENGER ///////////////////////////////////////
886 /////////////////////////////////////////////////////////////////////////////
887
888
889 void TrentoPassiveProtonBeamLine::SetScatteringFoilXSize(G4double value)
890 {
891 ScatteringFoil -> SetXHalfLength(value);
892 G4RunManager::GetRunManager() -> GeometryHasBeenModified();
893 G4cout <<"The X size of the second scattering foil is (mm):"<<
894 ((ScatteringFoil -> GetXHalfLength())*2.)/mm
895 << G4endl;
896 }
897
898
899 void TrentoPassiveProtonBeamLine::SetPreCollimatorXSize(G4double value)
900 {
901 preCollimator -> SetXHalfLength(value);
902 G4cout<<"The size of the pre collimator is (mm)"
903 << ((preCollimator -> GetXHalfLength())*2)/mm << G4endl;
904 G4RunManager::GetRunManager() -> GeometryHasBeenModified();
905
906 }
907
908 void TrentoPassiveProtonBeamLine::SetPreCollimatorXPosition(G4double value)
909 {
910 physiPreCollimator -> SetTranslation(G4ThreeVector(value, 0., 0.));
911 G4RunManager::GetRunManager() -> GeometryHasBeenModified();
912 G4cout <<" The pre collimator is translated to" << value/mm <<"mm along the X axis" << G4endl;
913
914 }
915
916 void TrentoPassiveProtonBeamLine::SetAirTubeYSize(G4double value)
917 {
918 solidAirTube -> SetYHalfLength(value);
919 G4cout<<"The y side of brass tube is (mm)"
920 << ((preCollimator -> GetYHalfLength())*2) << G4endl;
921 G4RunManager::GetRunManager() -> GeometryHasBeenModified();
922 }
923
924
925 void TrentoPassiveProtonBeamLine::SetAirTubeZSize(G4double value)
926 {
927 solidAirTube -> SetZHalfLength(value);
928 G4cout<<"The z side of the brass tube is (mm)"
929 << ((Collimator -> GetZHalfLength())*2) << G4endl;
930 G4RunManager::GetRunManager() -> GeometryHasBeenModified();
931
932 }
933
934
935 /////////////////////////////////////////////////////////////////////////////
936 void TrentoPassiveProtonBeamLine::SetScattererMaterial(G4String materialChoice)
937 {
938 if (G4Material* pttoMaterial = G4NistManager::Instance()->FindOrBuildMaterial(materialChoice, false) )
939 {
940 if (pttoMaterial)
941 {
942 ScatteringFoilMaterial = pttoMaterial;
943 logicScatteringFoil -> SetMaterial(pttoMaterial);
944 G4cout << "The material of the Scatterer has been changed to " << materialChoice << G4endl;
945 }
946 }
947 else
948 {
949 G4cout << "WARNING: material \"" << materialChoice << "\" doesn't exist in NIST elements/materials"
950 " table [located in $G4INSTALL/source/materials/src/G4NistMaterialBuilder.cc]" << G4endl;
951 G4cout << "Use command \"/parameter/nist\" to see full materials list!" << G4endl;
952 }
953 }
954