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25 //
26 //
27 // --------------------------------------------------------------
28 // GEANT 4 - Underground Dark Matter Detector Advanced Example
29 //
30 // For information related to this code contact: Alex Howard
31 // e-mail: alexander.howard@cern.ch
32 // --------------------------------------------------------------
33 // Comments
34 //
35 // Underground Advanced
36 // by A. Howard and H. Araujo
37 // (27th November 2001)
38 //
39 // DetectorConstruction program
40 // --------------------------------------------------------------
41
42 #include "DMXDetectorConstruction.hh"
43 #include "DMXDetectorMessenger.hh"
44
45 #include "DMXScintSD.hh"
46 #include "DMXPmtSD.hh"
47
48
49 #include "G4Material.hh"
50 #include "G4MaterialTable.hh"
51 #include "G4Element.hh"
52 #include "G4Isotope.hh"
53 #include "G4UnitsTable.hh"
54 #include "G4Box.hh"
55 #include "G4Tubs.hh"
56 #include "G4Sphere.hh"
57 #include "G4UnionSolid.hh"
58 #include "G4SubtractionSolid.hh"
59
60 #include "G4LogicalVolume.hh"
61 #include "G4PVPlacement.hh"
62 #include "G4ThreeVector.hh"
63 #include "G4RotationMatrix.hh"
64 #include "G4Transform3D.hh"
65 #include "G4LogicalBorderSurface.hh"
66 #include "G4LogicalSkinSurface.hh"
67 #include "G4OpBoundaryProcess.hh"
68
69 #include "G4FieldManager.hh"
70 #include "G4UniformElectricField.hh"
71 #include "G4TransportationManager.hh"
72 #include "G4MagIntegratorStepper.hh"
73 #include "G4EqMagElectricField.hh"
74 #include "G4ClassicalRK4.hh"
75 #include "G4ChordFinder.hh"
76
77 #include "G4SDManager.hh"
78
79 #include "G4VisAttributes.hh"
80 #include "G4Colour.hh"
81
82 #include "G4UserLimits.hh"
83
84 #include "G4RunManager.hh"
85 #include "G4SystemOfUnits.hh"
86
87 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
88 DMXDetectorConstruction::DMXDetectorConstruction()
89 {
90 // create commands for interactive definition of time cuts:
91 detectorMessenger = new DMXDetectorMessenger(this);
92
93 theUserLimitsForRoom = 0;
94 theUserLimitsForDetector = 0;
95 // default time cut = infinite
96 // - note also number of steps cut in stepping action = MaxNoSteps
97 theMaxTimeCuts = DBL_MAX;
98 theMaxStepSize = DBL_MAX;
99 theDetectorStepSize = DBL_MAX;
100 theRoomTimeCut = 1000. * nanosecond;
101 theMinEkine = 250.0*eV; // minimum kinetic energy required in volume
102 theRoomMinEkine = 250.0*eV; // minimum kinetic energy required in volume
103
104 //Zero the G4Cache objects to contain logical volumes
105 LXeSD.Put(0);
106 pmtSD.Put(0);
107 }
108
109
110 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
111 DMXDetectorConstruction::~DMXDetectorConstruction()
112 {
113 delete theUserLimitsForRoom;
114 delete theUserLimitsForDetector;
115 delete detectorMessenger;
116 }
117
118
119
120 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
121 void DMXDetectorConstruction::DefineMaterials()
122 {
123
124 #include "DMXDetectorMaterial.icc"
125
126 }
127
128 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
129 G4VPhysicalVolume* DMXDetectorConstruction::Construct() {
130
131 DefineMaterials();
132
133 // DefineField();
134
135 // make colours
136 G4Colour white (1.0, 1.0, 1.0) ;
137 G4Colour grey (0.5, 0.5, 0.5) ;
138 G4Colour lgrey (.85, .85, .85) ;
139 G4Colour red (1.0, 0.0, 0.0) ;
140 G4Colour blue (0.0, 0.0, 1.0) ;
141 G4Colour cyan (0.0, 1.0, 1.0) ;
142 G4Colour magenta (1.0, 0.0, 1.0) ;
143 G4Colour yellow (1.0, 1.0, 0.0) ;
144 G4Colour orange (.75, .55, 0.0) ;
145 G4Colour lblue (0.0, 0.0, .75) ;
146 G4Colour lgreen (0.0, .75, 0.0) ;
147 G4Colour green (0.0, 1.0, 0.0) ;
148 G4Colour brown (0.7, 0.4, 0.1) ;
149
150
151 // un-used colours:
152 // G4Colour black (0.0, 0.0, 0.0) ;
153
154
155
156 // Universe - room wall - CONCRETE ****************************************
157
158 //NB: measured INSIDE of lab, therefore have to add twice wall thickness
159 G4double wallThick = 24.*cm;
160 G4double worldWidth = 470.0*cm + 2.*wallThick; // "x"
161 G4double worldLength = 690.0*cm + 2.*wallThick; // "y"
162 G4double worldHeight = 280.0*cm + 2.*wallThick; // "z"
163
164 G4Box* world_box = new G4Box
165 ("world_box", 0.5*worldWidth, 0.5*worldLength, 0.5*worldHeight );
166 world_log = new G4LogicalVolume(world_box, world_mat, "world_log");
167 world_phys = new G4PVPlacement(0, G4ThreeVector(0.,0.,0.),
168 "world_phys", world_log, NULL, false,0);
169
170 // G4VisAttributes* world_vat= new G4VisAttributes(white);
171 world_log->SetVisAttributes(G4VisAttributes::GetInvisible());
172 //world_vat->SetVisibility(true);
173 //world_vat->SetVisibility(false);
174 //world_log->SetVisAttributes(world_vat);
175
176
177 // Lab Space - AIR ********************************************************
178
179 G4double labWidth = worldWidth - 2.*wallThick; //X
180 G4double labLength = worldLength - 2.*wallThick; //Y
181 G4double labHeight = worldHeight - 2.*wallThick; //Z
182
183 G4Box* lab_box = new G4Box
184 ("lab_box", 0.5*labWidth, 0.5*labLength, 0.5*labHeight );
185 lab_log = new G4LogicalVolume(lab_box, lab_mat, "lab_log");
186 lab_phys = new G4PVPlacement(0, G4ThreeVector(0.,0.,0.), "lab_phys",
187 lab_log, world_phys, false,0);
188
189 G4VisAttributes* lab_vat= new G4VisAttributes(white);
190 // lab_log->SetVisAttributes(G4VisAttributes::GetInvisible());
191 // lab_vat->SetVisibility(true);
192 lab_vat->SetVisibility(false);
193 lab_log->SetVisAttributes(lab_vat);
194
195 // include room furniture: **************************************************
196
197 #include "DMXDetectorRoom.icc"
198
199 // Now start with detector assembly:
200
201 // first LN2 cooling container: *******************************************
202
203 G4double PosZ = -25.3*cm; // extra z-pos to correspond with height in lab
204
205 G4double LN2jacketRadius = 107.5*mm;
206 G4double LN2jacketHeight = 590.0*mm;
207 G4double jacketHeight = 680.0*mm;
208 G4double jacketflangeHeight = 53.0*mm;
209 G4double LN2PosZ = 0.5*jacketHeight + 0.5*LN2jacketHeight
210 + jacketflangeHeight + PosZ;
211
212 G4Tubs* LN2jacket_tube = new G4Tubs("LN2jacket_tube",
213 0.*cm, LN2jacketRadius, 0.5*LN2jacketHeight, 0.*deg, 360.*deg);
214 LN2jacket_log = new G4LogicalVolume
215 (LN2jacket_tube, LN2jacket_mat, "LN2jacket_log");
216 LN2jacket_phys = new G4PVPlacement(0, G4ThreeVector(0.,0.,LN2PosZ),
217 "LN2jacket_phys", LN2jacket_log, lab_phys, false,0);
218
219 G4VisAttributes* LN2jacket_vat = new G4VisAttributes(lgrey);
220 // LN2jacket_log->SetVisAttributes(G4VisAttributes::GetInvisible());
221 // LN2jacket_vat->SetVisibility(true);
222 LN2jacket_log->SetVisAttributes(LN2jacket_vat);
223
224 // LN2jacket vacuum: **********************
225
226 G4double LN2jacketMetalThick = 2.0*mm;
227 G4double LN2vacuumRadius = LN2jacketRadius - LN2jacketMetalThick;
228 G4double LN2vacuumHeight = LN2jacketHeight - LN2jacketMetalThick;
229
230 G4Tubs* LN2vacuum_tube = new G4Tubs("LN2vacuum_tube",
231 0.*cm, LN2vacuumRadius, 0.5*LN2vacuumHeight, 0.*deg, 360.*deg);
232 LN2vacuum_log = new G4LogicalVolume
233 (LN2vacuum_tube, vacuum_mat, "LN2vacuum_log");
234 LN2vacuum_phys = new G4PVPlacement(0, G4ThreeVector(0.,0.,0.),
235 "LN2vacuum_phys", LN2vacuum_log, LN2jacket_phys, false,0);
236
237 LN2vacuum_log->SetVisAttributes(G4VisAttributes::GetInvisible());
238
239 // LN2 vessel: ************************************************************
240
241 G4double LN2Radius = 76.0*mm;
242 G4double LN2Height = 590.0*mm - 2.*LN2jacketMetalThick;
243 G4double LN2vesselRadius = LN2Radius + LN2jacketMetalThick;
244 G4double LN2vesselHeight = LN2Height;
245 G4double LN2vesselPosZ = 0.5*LN2vacuumHeight - 0.5*LN2vesselHeight;
246
247 G4Tubs* LN2vessel_tube = new G4Tubs("LN2vessel_tube",
248 0.*cm, LN2vesselRadius, 0.5*LN2vesselHeight, 0.*deg, 360.*deg);
249 LN2vessel_log = new G4LogicalVolume
250 (LN2vessel_tube, LN2jacket_mat, "LN2vessel_log");
251 LN2vessel_phys = new G4PVPlacement(0, G4ThreeVector(0.,0.,LN2vesselPosZ),
252 "LN2vessel_phys", LN2vessel_log, LN2vacuum_phys, false,0);
253
254 G4VisAttributes* LN2vessel_vat = new G4VisAttributes(lgrey);
255 // LN2vessel_log->SetVisAttributes(G4VisAttributes::GetInvisible());
256 // LN2vessel_vat->SetVisibility(true);
257 LN2vessel_log->SetVisAttributes(LN2vessel_vat);
258
259
260 // and finally LN2: *******************************************************
261
262 G4Tubs* LN2_tube = new G4Tubs("LN2_tube",
263 0.*cm, LN2Radius, 0.5*LN2Height, 0.*deg, 360.*deg);
264 LN2_log = new G4LogicalVolume(LN2_tube, LN2_mat, "LN2_log");
265 LN2_phys = new G4PVPlacement(0, G4ThreeVector(0.,0.,0.),
266 "LN2_phys", LN2_log, LN2vessel_phys, false,0);
267
268 G4VisAttributes* LN2_vat = new G4VisAttributes(green);
269 LN2_vat->SetVisibility(true);
270 LN2_log->SetVisAttributes(LN2_vat);
271
272
273 // outer vacuum jacket volume: stainless steel ****************************
274
275 G4double jacketRadius = 127.5*mm;
276 // G4double jacketHeight = 680.0*mm; // defined above to get full-height
277 G4double jacketMetalThick = LN2jacketMetalThick;
278
279 G4Tubs* jacket_tube = new G4Tubs("jacket_tube",
280 0.*cm, jacketRadius, 0.5*jacketHeight, 0.*deg, 360.*deg);
281 jacket_log = new G4LogicalVolume(jacket_tube, jacket_mat, "jacket_log");
282 jacket_phys = new G4PVPlacement(0, G4ThreeVector(0.,0.,PosZ),
283 "jacket_phys", jacket_log, lab_phys, false,0);
284
285 G4VisAttributes* jacket_vat = new G4VisAttributes(grey);
286 // jacket_log->SetVisAttributes(G4VisAttributes::GetInvisible());
287 jacket_log->SetVisAttributes(jacket_vat);
288
289
290 // outer vacuum jacket flanges: stainless steel *************************
291
292 G4double jacketflangeRadius = 127.5*mm;
293 // G4double jacketflangeHeight = 53.0*mm; // defined above to get full-height
294 G4double topjacketflangePosZ = 0.5*(jacketHeight+jacketflangeHeight);
295
296 G4Tubs* jacketflange_tube = new G4Tubs("jacketflange_tube",
297 0.*cm, jacketflangeRadius, 0.5*jacketflangeHeight, 0.*deg, 360.*deg);
298 jacketflange_log = new G4LogicalVolume
299 (jacketflange_tube, jacketflange_mat, "jacketflange_log");
300 topjacketflange_phys = new G4PVPlacement
301 (0, G4ThreeVector(0.,0.,topjacketflangePosZ + PosZ),
302 "topjacketflange_phys", jacketflange_log, lab_phys, false,0);
303 bottomjacketflange_phys = new G4PVPlacement
304 (0, G4ThreeVector(0.,0.,-topjacketflangePosZ + PosZ),
305 "bottomjacketflange_phys", jacketflange_log, lab_phys, false,0);
306
307 // jacketflange_log->SetVisAttributes(G4VisAttributes::GetInvisible());
308 jacketflange_log->SetVisAttributes(jacket_vat);
309
310 // vacuum **************************************************************
311
312 G4double vacuumRadius = jacketRadius - jacketMetalThick;
313 G4double vacuumHeight = jacketHeight - jacketMetalThick;
314
315 G4Tubs* vacuum_tube = new G4Tubs("vacuum_tube",
316 0.*cm, vacuumRadius, 0.5*vacuumHeight, 0.*deg, 360.*deg);
317 vacuum_log = new G4LogicalVolume(vacuum_tube, vacuum_mat, "vacuum_log");
318 vacuum_phys = new G4PVPlacement(0, G4ThreeVector(0.,0.,0.),
319 "vacuum_phys", vacuum_log, jacket_phys, false,0);
320
321 // G4VisAttributes* vacuum_vat= new G4VisAttributes(lgrey);
322 vacuum_log->SetVisAttributes(G4VisAttributes::GetInvisible());
323
324
325 // copper cooling jacket volume: **************************************
326
327 G4double copperMetalThick = 3.0*mm;
328 G4double copperRadius = 103.5*mm + copperMetalThick;
329 G4double copperHeight = 420.0*mm;
330 G4double copperInner = copperRadius - copperMetalThick;
331 G4double vesselHeight = 320.0*mm;
332 G4double copperVPos = 0.5*(vesselHeight-copperHeight) + 13.0*cm;
333 G4double coppertopThick = 1.0*cm;
334 G4double coppertopVPos = copperVPos + 0.5*(coppertopThick+copperHeight);
335
336 G4Tubs* copper_tube = new G4Tubs("copper_tube",
337 copperInner, copperRadius, 0.5*copperHeight, 0.*deg, 360.*deg);
338 copper_log = new G4LogicalVolume(copper_tube, copper_mat, "copper_log");
339 copper_phys = new G4PVPlacement(0, G4ThreeVector(0.,0.,copperVPos),
340 "copper_phys", copper_log, vacuum_phys, false,0);
341
342 G4Tubs* coppertop_tube = new G4Tubs("coppertop_tube",
343 0.*cm, copperRadius, 0.5*coppertopThick, 0.*deg, 360.*deg);
344 coppertop_log = new G4LogicalVolume
345 (coppertop_tube, copper_mat, "coppertop_log");
346 coppertop_phys = new G4PVPlacement(0,G4ThreeVector(0.,0.,coppertopVPos),
347 "coppertop_phys", coppertop_log, vacuum_phys, false,0);
348
349 G4VisAttributes* copper_vat = new G4VisAttributes(orange);
350 // copper_log->SetVisAttributes(G4VisAttributes::GetInvisible());
351 copper_log->SetVisAttributes(copper_vat);
352 coppertop_log->SetVisAttributes(copper_vat);
353
354 // inner vessel jacket volume: stainless steel ************************
355
356 // G4double vesselHeight = 320.0*mm; // - moved earlier
357 G4double vesselMetalThick = jacketMetalThick;
358 G4double vesselRadius = 75.0*mm + vesselMetalThick;
359 G4double vesselflangeRadius = 101.5*mm;
360 G4double vesselflangeThick = 40.0*mm;
361 G4double PMTvesselRadius = 31.0*mm + vesselMetalThick;
362 G4double PMTvesselHeight = 152.0*mm;
363 G4double pmtvesselflangeRadius = 52.0*mm;
364 G4double pmtvesselflangeThick = 32.0*mm;
365 G4double vesselVPos = 7.0*cm;
366 G4double TotalvesselHeight = PMTvesselHeight + vesselHeight;
367
368 G4Tubs* vessel_tube = new G4Tubs("vessel_tube",
369 0.*cm, vesselRadius, 0.5*vesselHeight, 0.*deg, 360.*deg);
370 G4Tubs* PMTvessel_tube = new G4Tubs("PMTvessel_tube",
371 0.*cm, PMTvesselRadius, 0.5*PMTvesselHeight, 0.*deg, 360.*deg);
372
373 G4UnionSolid* vessel_sol = new G4UnionSolid
374 ("vessel_sol", vessel_tube, PMTvessel_tube,
375 G4Transform3D(G4RotationMatrix(),
376 G4ThreeVector(0,0,-0.5*(vesselHeight+PMTvesselHeight))));
377
378 vessel_log = new G4LogicalVolume(vessel_sol, vessel_mat, "vessel_log");
379 vessel_phys = new G4PVPlacement(0, G4ThreeVector(0.,0.,vesselVPos),
380 "vessel_phys", vessel_log, vacuum_phys, false,0);
381
382
383 // flanges: 1=upper half (diff. inner diam.) 2=lower half
384 G4Tubs* vesseltop_flange1 = new G4Tubs("vesseltop_flange1",
385 0.*cm, vesselflangeRadius, 0.25*vesselflangeThick, 0.*deg, 360.*deg);
386 vesseltop_log1 = new G4LogicalVolume
387 (vesseltop_flange1, vessel_mat, "vesseltop_log1");
388 vesseltop_phys1 = new G4PVPlacement
389 (0,
390 G4ThreeVector(0.,0.,0.5*(vesselHeight+0.5*vesselflangeThick)+vesselVPos),
391 "vesseltop_phys1", vesseltop_log1, vacuum_phys, false,0);
392
393 G4Tubs* vesseltop_flange2 = new G4Tubs("vesseltop_flange2",vesselRadius,
394 vesselflangeRadius, 0.25*vesselflangeThick, 0.*deg, 360.*deg);
395 vesseltop_log2 = new G4LogicalVolume
396 (vesseltop_flange2, vessel_mat, "vesseltop_log2");
397 vesseltop_phys2 = new G4PVPlacement
398 (0,
399 G4ThreeVector(0.,0.,0.5*(vesselHeight-0.5*vesselflangeThick)+vesselVPos),
400 "vesseltop_phys2", vesseltop_log2, vacuum_phys, false,0);
401
402
403 G4Tubs* vesselbottom_flange1 = new G4Tubs
404 ("vesselbottom_flange1",vesselRadius, vesselflangeRadius,
405 0.25*vesselflangeThick, 0.*deg, 360.*deg);
406 vesselbottom_log1 = new G4LogicalVolume
407 (vesselbottom_flange1, vessel_mat, "vesselbottom_log1");
408 vesselbottom_phys1 = new G4PVPlacement(0,
409 G4ThreeVector(0.,0.,-0.5*(vesselHeight-0.5*vesselflangeThick)+vesselVPos),
410 "vesselbottom_phys1", vesselbottom_log1, vacuum_phys, false,0);
411
412 G4Tubs* vesselbottom_flange2 = new G4Tubs
413 ("vesselbottom_flange2",PMTvesselRadius, vesselflangeRadius,
414 0.25*vesselflangeThick, 0.*deg, 360.*deg);
415 vesselbottom_log2 = new G4LogicalVolume
416 (vesselbottom_flange2, vessel_mat, "vesselbottom_log2");
417 vesselbottom_phys2 = new G4PVPlacement(0,
418 G4ThreeVector(0.,0.,-0.5*(vesselHeight+0.5*vesselflangeThick)+vesselVPos),
419 "vesselbottom_phys2", vesselbottom_log2, vacuum_phys, false,0);
420
421
422 G4Tubs* pmtvesselbottom_flange1 = new G4Tubs
423 ("pmtvesselbottom_flange1", PMTvesselRadius, pmtvesselflangeRadius,
424 0.25*pmtvesselflangeThick, 0.*deg, 360.*deg);
425 pmtvesselbottom_log1 = new G4LogicalVolume
426 (pmtvesselbottom_flange1, vessel_mat, "pmtvesselbottom_log1");
427 pmtvesselbottom_phys1 = new G4PVPlacement(0, G4ThreeVector(0.,0.,
428 (-0.5*vesselHeight-PMTvesselHeight+vesselVPos+0.25*pmtvesselflangeThick)),
429 "pmtvesselbottom_phys1", pmtvesselbottom_log1, vacuum_phys, false,0);
430
431 G4Tubs* pmtvesselbottom_flange2 = new G4Tubs
432 ("pmtvesselbottom_flange2", 0.*cm, pmtvesselflangeRadius,
433 0.25*pmtvesselflangeThick, 0.*deg, 360.*deg);
434 pmtvesselbottom_log2 = new G4LogicalVolume
435 (pmtvesselbottom_flange2, vessel_mat, "pmtvesselbottom_log2");
436 pmtvesselbottom_phys2 = new G4PVPlacement(0, G4ThreeVector(0.,0.,
437 -0.5*vesselHeight-PMTvesselHeight+vesselVPos-0.25*pmtvesselflangeThick),
438 "pmtvesselbottom_phys2", pmtvesselbottom_log2, vacuum_phys, false,0);
439
440
441 G4VisAttributes* vessel_vat = new G4VisAttributes(grey);
442 G4VisAttributes* pmtvessel_vat = new G4VisAttributes(yellow);
443 G4VisAttributes* pmtvessel_vat2 = new G4VisAttributes(green);
444 // vessel_log->SetVisAttributes(G4VisAttributes::GetInvisible());
445 // vessel_vat->SetForceSolid(true);
446 // pmtvessel_vat->SetForceSolid(true);
447 // pmtvessel_vat2->SetForceSolid(true);
448 vessel_log->SetVisAttributes(vessel_vat);
449 vesseltop_log1->SetVisAttributes(vessel_vat);
450 vesselbottom_log1->SetVisAttributes(vessel_vat);
451 vesseltop_log2->SetVisAttributes(pmtvessel_vat);
452 vesselbottom_log2->SetVisAttributes(pmtvessel_vat);
453 // pmtvesselbottom_log->SetVisAttributes(vessel_vat);
454 pmtvesselbottom_log1->SetVisAttributes(vessel_vat);
455 pmtvesselbottom_log2->SetVisAttributes(pmtvessel_vat2);
456
457
458
459 // *********************************************************************
460 // grid#1 to mirror surface: 21.75 mm
461 // LXe height = 15.75 mm, gXe height = 6.00 mm
462 // NB: Increased liquid height by 1mm - to take away problem with
463 // over-lapping volumes/ring pronounced from liquid phase..........
464 // *********************************************************************
465
466 // detector volume: gas phase ******************************************
467
468 G4double mirrorVPos = 21.3*cm;
469 G4double gasGap = 6.0*mm;
470 G4double DetectorRadius = vesselRadius - vesselMetalThick;
471 G4double GXeHeight = TotalvesselHeight - mirrorVPos + gasGap;
472 G4double GXeVPos = 0.5*vesselHeight - 0.5*GXeHeight;
473
474 G4Tubs* GXe_tube = new G4Tubs("GXe_tube",
475 0.*cm, DetectorRadius, 0.5*GXeHeight, 0.*deg, 360.*deg);
476 GXe_log = new G4LogicalVolume(GXe_tube, GXe_mat, "GXe_log");
477 GXe_phys = new G4PVPlacement(0, G4ThreeVector(0.,0.,GXeVPos),
478 "GXe_phys", GXe_log, vessel_phys, false,0);
479
480 G4VisAttributes* GXe_vat = new G4VisAttributes(cyan);
481 // GXe_vat->SetForceSolid(true);
482 GXe_vat->SetVisibility(true);
483 GXe_log->SetVisAttributes(GXe_vat);
484
485
486 // liquid phase *******************************************************
487
488 G4double LXeHeight = mirrorVPos - gasGap;
489 G4double PMTDetectorRadius = PMTvesselRadius - vesselMetalThick;
490 G4double PMTDetectorHeight = PMTvesselHeight;
491 G4double LXeTubeHeight = LXeHeight - PMTDetectorHeight;
492 G4double LXe_solVPos = -0.5*(LXeTubeHeight+PMTDetectorHeight);
493 G4double LXeVPos = -0.5*TotalvesselHeight + 0.5*LXeHeight;
494
495 G4Tubs* LXe_tube = new G4Tubs("GXe_tube",
496 0.*cm, DetectorRadius, 0.5*LXeTubeHeight, 0.*deg, 360.*deg);
497 G4Tubs* PMTdetector_tube = new G4Tubs("PMTdetector_tube",
498 0.*cm, PMTDetectorRadius, 0.5*PMTDetectorHeight, 0.*deg, 360.*deg);
499
500 G4UnionSolid* LXe_sol = new G4UnionSolid
501 ("LXe_sol", LXe_tube, PMTdetector_tube,
502 G4Transform3D(G4RotationMatrix(), G4ThreeVector(0,0,LXe_solVPos)));
503
504 LXe_log = new G4LogicalVolume(LXe_sol, LXe_mat, "LXe_log");
505 LXe_phys = new G4PVPlacement(0, G4ThreeVector(0.*cm, 0.*cm, LXeVPos),
506 "LXe_phys", LXe_log, vessel_phys, false, 0);
507
508 // attributes
509 G4VisAttributes* LXe_vat = new G4VisAttributes(lblue);
510 // LXe_vat->SetForceSolid(true);
511 LXe_vat->SetVisibility(true);
512 LXe_log->SetVisAttributes(LXe_vat);
513
514
515 // Gas phase vessel lagging - for optical properties:
516
517 G4double laggingThickness = 10.*micrometer;
518 G4double laggingRadius = DetectorRadius - laggingThickness;
519
520 G4Tubs* gaslag_tube = new G4Tubs("gaslag_tube", laggingRadius,
521 DetectorRadius, 0.5*GXeHeight, 0.*deg, 360.*deg);
522 gaslag_log = new G4LogicalVolume(gaslag_tube, vessel_mat, "gaslag_log");
523 gaslag_phys = new G4PVPlacement(0, G4ThreeVector(0.*cm, 0.*cm, 0.*cm),
524 "gaslag_phys", gaslag_log, GXe_phys, false, 0);
525
526 // attributes
527 G4VisAttributes* gaslag_vat = new G4VisAttributes(lgreen);
528 // gaslag_vat->SetForceSolid(true);
529 gaslag_vat->SetVisibility(true);
530 gaslag_log->SetVisAttributes(gaslag_vat);
531
532
533 // liquid phase vessel lagging - for optical properties:
534
535 G4double lagTubeRadius = DetectorRadius - laggingThickness;
536 G4double lagTubeHeight = LXeHeight - PMTDetectorHeight;
537 G4double lagPMTRadius = PMTDetectorRadius - laggingThickness;
538 G4double lagPMTHeight = PMTDetectorHeight;
539
540 G4Tubs* liqLag_tube = new G4Tubs("liqlag_tube", lagTubeRadius,
541 DetectorRadius, 0.5*lagTubeHeight, 0.*deg, 360.*deg);
542 G4Tubs* lagPMT_tube = new G4Tubs("lagPMT_tube", lagPMTRadius,
543 PMTDetectorRadius, 0.5*lagPMTHeight, 0.*deg, 360.*deg);
544
545 G4UnionSolid* liqLag_sol = new G4UnionSolid
546 ("liqLag_sol", liqLag_tube, lagPMT_tube,
547 G4Transform3D(G4RotationMatrix(),G4ThreeVector(0,0,LXe_solVPos)));
548
549 liqLag_log = new G4LogicalVolume(liqLag_sol, vessel_mat, "liqLag_log");
550 liqLag_phys = new G4PVPlacement(0, G4ThreeVector(0.*cm, 0.*cm, 0.*cm),
551 "liqLag_phys", liqLag_log, LXe_phys, false, 0);
552
553 // attributes
554 G4VisAttributes* liqLag_vat = new G4VisAttributes(magenta);
555 // liqLag_vat->SetForceSolid(true);
556 liqLag_vat->SetVisibility(true);
557 liqLag_log->SetVisAttributes(liqLag_vat);
558
559
560 // Vessel Wall Optical Surface definition:
561 G4OpticalSurface* OpVesselSurface = new G4OpticalSurface
562 ("VesselSurface", unified, polished, dielectric_metal);
563
564 // created optical lagging onto vessel - to avoid clash between over-lapping
565 // liquid and gas phase - so removed below:
566 /*
567 G4LogicalBorderSurface* VesselSurface;
568 VesselSurface = new G4LogicalBorderSurface
569 ("Vessel", liqPhase_phys, vessel_phys, OpVesselSurface);
570 */
571
572 std::vector<G4double> vessel_PP = { 6.5*eV, 7.50*eV };
573 std::vector<G4double> vessel_REFL = { 0.2, 0.2 };
574 G4MaterialPropertiesTable* vessel_mt = new G4MaterialPropertiesTable();
575 vessel_mt->AddProperty("REFLECTIVITY", vessel_PP, vessel_REFL);
576 OpVesselSurface->SetMaterialPropertiesTable(vessel_mt);
577
578 // G4LogicalBorderSurface* VesselTopSurface =
579 new G4LogicalBorderSurface
580 ("VesselTop", GXe_phys, vesseltop_phys1, OpVesselSurface);
581
582 //G4LogicalBorderSurface* VesselBottomSurface =
583 new G4LogicalBorderSurface
584 ("VesselBottom", LXe_phys, vesselbottom_phys2, OpVesselSurface);
585
586 //G4LogicalBorderSurface* GasVesselSurface =
587 new G4LogicalBorderSurface
588 ("GasVessel", GXe_phys, gaslag_phys, OpVesselSurface);
589
590 //G4LogicalBorderSurface* LiquidVesselSurface =
591 new G4LogicalBorderSurface
592 ("LiquidVessel", LXe_phys, liqLag_phys, OpVesselSurface);
593
594
595
596 // Cu Shield **********************************************************
597
598 G4double CuShieldHeight = 17.7*cm;
599 G4double CuShieldThickness = 2.4*mm;
600 G4double CuShieldOuterRadius = 3.0*cm;
601 G4double CuShieldInnerRadius = CuShieldOuterRadius-CuShieldThickness;
602 G4double CuShieldVPosition = -0.5*LXeTubeHeight - PMTDetectorHeight
603 + 0.5*CuShieldHeight;
604
605 // Zero co-ordinate of the union is the zero of the first volume,
606 // i.e. the offset is still present
607
608 G4Tubs* CuShield_tube = new G4Tubs("CuShield_tube", CuShieldInnerRadius,
609 CuShieldOuterRadius, 0.5*CuShieldHeight, 0.*deg, 360.*deg);
610 CuShield_log = new G4LogicalVolume(CuShield_tube, CuShield_mat,
611 "CuShield_log");
612 CuShield_phys = new G4PVPlacement(0,
613 G4ThreeVector(0.*cm, 0.*cm, CuShieldVPosition),
614 "CuShield_phys", CuShield_log, LXe_phys, false, 0);
615
616 // G4VisAttributes* CuShield_vat= new G4VisAttributes(magenta);
617 G4VisAttributes* CuShield_vat = new G4VisAttributes(brown);
618 // CuShield_vat->SetForceSolid(true);
619 CuShield_vat->SetVisibility(true);
620 CuShield_log->SetVisAttributes(CuShield_vat);
621
622 // Cu shield surface
623 G4double sigalpha;
624 G4OpticalSurface* OpCuShieldSurface = new G4OpticalSurface
625 ("ShieldSurface", unified, ground, dielectric_metal, sigalpha=30.0*deg);
626 //G4LogicalBorderSurface* ShieldSurface =
627 new G4LogicalBorderSurface
628 ("Shield", LXe_phys, CuShield_phys, OpCuShieldSurface);
629
630 std::vector<G4double> CuShield_PP = { 7.0*eV, 7.50*eV };
631 std::vector<G4double> CuShield_REFL = { 0.3, 0.2 };
632 G4MaterialPropertiesTable *CuShield_mt = new G4MaterialPropertiesTable();
633 CuShield_mt->AddProperty("REFLECTIVITY", CuShield_PP, CuShield_REFL);
634 OpCuShieldSurface->SetMaterialPropertiesTable(CuShield_mt);
635
636 // rings ***************************************************************
637
638 G4double ringHeight = 4.*mm;
639 G4double ringOuterRadius = 4.0*cm;
640 G4double ringInnerRadius = CuShieldOuterRadius;
641 G4double ringVOffset = 0.5*ringHeight;
642 G4double ringVPosition = -0.5*GXeHeight + gasGap +ringVOffset;
643
644 G4Tubs* ring_tube=new G4Tubs("ring_tube", ringInnerRadius,
645 ringOuterRadius, 0.5*ringHeight, 0.*deg, 360.*deg);
646 ring_log = new G4LogicalVolume(ring_tube, ring_mat, "ring_log");
647
648 // optical surface: ring materials table
649 std::vector<G4double> ring_PP = { 6.00*eV, 7.50*eV };
650 std::vector<G4double> ring_REFL = { 0.7, 0.65 };
651 G4MaterialPropertiesTable *ring_mt = new G4MaterialPropertiesTable();
652 ring_mt->AddProperty("REFLECTIVITY", ring_PP, ring_REFL);
653
654 G4OpticalSurface* OpRingSurface = new G4OpticalSurface
655 ("RingSurface", unified, ground, dielectric_metal, sigalpha=10.*deg);
656 // last argument is surface roughness if it's non-polished - i.e. ground
657 OpRingSurface->SetMaterialPropertiesTable(ring_mt);
658
659 // rings inside gas phase
660 ring_phys_gas[0] = new G4PVPlacement(0, G4ThreeVector
661 (0.*cm, 0.*cm, ringVPosition),"ring_phys0",ring_log,GXe_phys,false, 0);
662 //G4LogicalBorderSurface* RingSurface_gas0 =
663 new G4LogicalBorderSurface
664 ("Ring", GXe_phys, ring_phys_gas[0], OpRingSurface);
665
666 ring_phys_gas[1] = new G4PVPlacement(0,
667 G4ThreeVector(0.*cm, 0.*cm, ringVPosition-=ringHeight+1.0*mm),
668 "ring_phys1",ring_log, GXe_phys, false, 0);
669 //G4LogicalBorderSurface* RingSurface_gas1 =
670 new G4LogicalBorderSurface
671 ("Ring", GXe_phys, ring_phys_gas[1], OpRingSurface);
672
673
674 // rings inside liquid phase:
675 ringVPosition = 0.5*LXeTubeHeight;
676
677 ring_phys_liq[0] = new G4PVPlacement(0,
678 G4ThreeVector(0.*cm, 0.*cm, ringVPosition-=0.5*ringHeight),
679 "ring_phys2",ring_log,LXe_phys, false, 0);
680 //G4LogicalBorderSurface* RingSurface_liq0 =
681 new G4LogicalBorderSurface
682 ("Ring", LXe_phys, ring_phys_liq[0], OpRingSurface);
683
684 ring_phys_liq[1] = new G4PVPlacement(0,
685 G4ThreeVector(0.*cm, 0.*cm, ringVPosition-=ringHeight+1.75*mm),
686 "ring_phys3",ring_log, LXe_phys, false, 0);
687 //G4LogicalBorderSurface* RingSurface_liq1 =
688 new G4LogicalBorderSurface
689 ("Ring", LXe_phys, ring_phys_liq[1], OpRingSurface);
690
691 ring_phys_liq[2]=new G4PVPlacement(0,
692 G4ThreeVector(0.*cm, 0.*cm, ringVPosition-=ringHeight),
693 "ring_phys4",ring_log, LXe_phys, false, 0);
694 //G4LogicalBorderSurface* RingSurface_liq2 =
695 new G4LogicalBorderSurface
696 ("Ring", LXe_phys, ring_phys_liq[2], OpRingSurface);
697
698 ring_phys_liq[3]=new G4PVPlacement(0,
699 G4ThreeVector(0.*cm, 0.*cm, ringVPosition-=ringHeight),
700 "ring_phys5",ring_log, LXe_phys, false, 0);
701 //G4LogicalBorderSurface* RingSurface_liq3 =
702 new G4LogicalBorderSurface
703 ("Ring", LXe_phys, ring_phys_liq[3], OpRingSurface);
704
705 ring_phys_liq[4]=new G4PVPlacement(0,
706 G4ThreeVector(0.*cm, 0.*cm, ringVPosition-=ringHeight+1.75*mm),
707 "ring_phys6",ring_log, LXe_phys,false, 0);
708 //G4LogicalBorderSurface* RingSurface_liq4 =
709 new G4LogicalBorderSurface
710 ("Ring", LXe_phys, ring_phys_liq[4], OpRingSurface);
711
712 ring_phys_liq[5]=new G4PVPlacement(0,
713 G4ThreeVector(0.*cm, 0.*cm, ringVPosition-=ringHeight+1.75*mm),
714 "ring_phys7",ring_log, LXe_phys,false, 0);
715 //G4LogicalBorderSurface* RingSurface_liq5 =
716 new G4LogicalBorderSurface
717 ("Ring", LXe_phys, ring_phys_liq[5], OpRingSurface);
718
719
720 G4VisAttributes* ring_vat= new G4VisAttributes(lgrey);
721 ring_vat->SetVisibility(true);
722 ring_log->SetVisAttributes(ring_vat);
723
724
725 // Mirror *************************************************************
726
727 G4double mirrorHeight = 2.0*mm;
728 G4double mirrorRadius = ringInnerRadius;
729 G4double mirrorVOffset = 0.5*ringHeight;
730 G4double mirrorVPosition = -0.5*GXeHeight + gasGap +mirrorVOffset;
731
732 G4Tubs* mirror_tube = new G4Tubs("mirror_tube", 0.*cm, mirrorRadius,
733 0.5*mirrorHeight, 0.*deg, 360.*deg);
734 mirror_log = new G4LogicalVolume(mirror_tube, mirror_mat, "mirror_log");
735 mirror_phys = new G4PVPlacement(0,
736 G4ThreeVector(0.*cm, 0.*cm, mirrorVPosition),
737 "mirror_phys", mirror_log, GXe_phys, false, 0);
738
739 G4VisAttributes* mirror_vat = new G4VisAttributes(cyan);
740 mirror_vat->SetVisibility(true);
741 // mirror_vat->SetForceSolid(true);
742 mirror_log->SetVisAttributes(mirror_vat);
743
744
745 // mirror surface
746 G4OpticalSurface * OpMirrorSurface = new G4OpticalSurface
747 ("MirrorSurface", unified, ground, dielectric_metal, sigalpha=5.0*deg);
748 //G4LogicalBorderSurface* MirrorSurface =
749 new G4LogicalBorderSurface
750 ("Mirror", GXe_phys, mirror_phys, OpMirrorSurface);
751
752 std::vector<G4double> mirror_PP = { 6.00*eV, 7.50*eV };
753 std::vector<G4double> mirror_REFL = { 0.83, 0.78 };
754 G4MaterialPropertiesTable *mirror_mt = new G4MaterialPropertiesTable();
755 mirror_mt->AddProperty("REFLECTIVITY", mirror_PP, mirror_REFL);
756 OpMirrorSurface->SetMaterialPropertiesTable(mirror_mt);
757
758 // Grids *************************************************************
759
760 G4double gridHeight = 0.100*mm;
761 G4double gridRadius = ringInnerRadius;
762 G4double grid1VOffset = 3.5*ringHeight+1.75*mm;
763 G4double grid1VPosition = 0.5*LXeTubeHeight - grid1VOffset;
764 G4double grid2VOffset = 4.5*ringHeight+3.50*mm;
765 G4double grid2VPosition = 0.5*LXeTubeHeight - grid2VOffset;
766
767 G4Tubs* grid_tube = new G4Tubs("grid_tube", 0.*cm, gridRadius,
768 0.5*gridHeight, 0.*deg, 360.*deg);
769
770 grid1_log = new G4LogicalVolume(grid_tube, grid_mat, "grid1_log");
771 grid1_phys = new G4PVPlacement(0,G4ThreeVector(0.*cm, 0.*cm, grid1VPosition),
772 "grid1_phys", grid1_log, LXe_phys, false, 0);
773 grid2_log = new G4LogicalVolume(grid_tube, grid_mat, "grid2_log");
774 grid2_phys = new G4PVPlacement(0,G4ThreeVector(0.*cm, 0.*cm, grid2VPosition),
775 "grid2_phys", grid2_log, LXe_phys, false, 0);
776
777 G4VisAttributes* grid_vat = new G4VisAttributes(red);
778 grid_vat->SetVisibility(true);
779 grid1_log->SetVisAttributes(grid_vat);
780 grid2_log->SetVisAttributes(grid_vat);
781
782
783 // alpha source holder ************************************************
784
785 G4double alphaHeight = 0.7*mm; // total lead thickness = 1.23 mm
786 G4double recessHeight = 0.3*mm; // totals lead thickness = 1.23 mm
787 G4double alphaRadius = 1.2*mm; // was 0.8
788 G4double recessRadius = 0.35*mm; // was 0.5 was 0.2
789 G4double recessVPosition = 0.5*(alphaHeight - recessHeight);
790
791 G4double alphaVOffset = grid1VOffset-0.5*alphaHeight - gridHeight;
792 G4double americiumHeight = 3000.*nanometer; // assumes ~1% Am
793 G4double extra_offset = (recessHeight +0.3*mm + 0.5*americiumHeight);
794 G4double alphaVPosition = 0.5*LXeTubeHeight - alphaVOffset + extra_offset;
795
796 G4Tubs* alpha_tube = new G4Tubs("alpha_tube", 0.*cm, alphaRadius,
797 0.5*alphaHeight, 0.*deg, 360.*deg);
798 G4Tubs* recess_tube = new G4Tubs("recess_tube", 0.*cm, recessRadius,
799 0.5*recessHeight, 0.*deg, 360.*deg);
800
801 G4SubtractionSolid* alpha_sol = new G4SubtractionSolid
802 ("alpha_sol", alpha_tube, recess_tube, G4Transform3D
803 (G4RotationMatrix(), G4ThreeVector(0. ,0. , recessVPosition)));
804 alpha_log = new G4LogicalVolume(alpha_sol, alpha_mat, "alpha_log");
805
806 alpha_phys = new G4PVPlacement(0, G4ThreeVector(0., 0., alphaVPosition),
807 "alpha_phys", alpha_log, LXe_phys, false, 0);
808
809 G4VisAttributes* alpha_vat = new G4VisAttributes(white);
810 alpha_vat->SetVisibility(true);
811 alpha_log ->SetVisAttributes(alpha_vat);
812
813 // alpha source HOLDER surface
814 G4OpticalSurface* OpAlphaSurface = new G4OpticalSurface("AlphaSurface",
815 unified, ground, dielectric_metal, sigalpha=20.0*deg);
816 //G4LogicalBorderSurface* AlphaSurface =
817 new G4LogicalBorderSurface
818 ("Alpha", LXe_phys, alpha_phys, OpAlphaSurface);
819
820 std::vector<G4double> alpha_PP = { 6.00*eV, 7.50*eV };
821 std::vector<G4double> alpha_REFL = { 0.05, 0.05 };
822 G4MaterialPropertiesTable *alpha_mt = new G4MaterialPropertiesTable();
823 alpha_mt->AddProperty("REFLECTIVITY", alpha_PP, alpha_REFL);
824 OpAlphaSurface->SetMaterialPropertiesTable(alpha_mt);
825
826 // americium ***********************************************************
827
828 // moved above for the "extra_offset":
829 // G4double americiumHeight = 600.*nanometer; // assumes ~1% Am
830 G4double americiumRadius = recessRadius - 50.0*micrometer;
831 G4double americiumVOffset = 0.5*(alphaHeight-americiumHeight)-recessHeight;
832 G4double americiumVPosition = americiumVOffset;
833
834 sourceZ = vesselVPos + LXeVPos + alphaVPosition + americiumVPosition + PosZ;
835 G4cout << G4endl << "Calibration source centre (X,Y,Z): 0, 0, "
836 << sourceZ/mm << " mm" << G4endl;
837
838 G4Tubs* americium_tube = new G4Tubs("americium_tube", 0.*cm,
839 americiumRadius, 0.5*americiumHeight, 0.*deg, 360.*deg);
840 americium_log = new G4LogicalVolume(americium_tube, americium_mat,
841 "americium_log");
842 americium_phys = new G4PVPlacement(0, G4ThreeVector(0., 0.,
843 americiumVPosition),"americium_phys", americium_log, alpha_phys,false,0);
844
845 // americium optical properties:
846 G4OpticalSurface* OpAmericiumSurface = new G4OpticalSurface
847 ("AmericiumSurface", unified, ground, dielectric_metal, sigalpha=5.0*deg);
848 //G4LogicalBorderSurface* AmericiumSurface =
849 new G4LogicalBorderSurface
850 ("Americium", LXe_phys, americium_phys, OpAmericiumSurface);
851
852 std::vector<G4double> americium_PP = { 6.00*eV, 7.50*eV };
853 std::vector<G4double> americium_REFL = { 0.7, 0.65 };
854 G4MaterialPropertiesTable *americium_mt = new G4MaterialPropertiesTable();
855 americium_mt->AddProperty("REFLECTIVITY", americium_PP, americium_REFL);
856 OpAlphaSurface->SetMaterialPropertiesTable(americium_mt);
857
858 G4VisAttributes* americium_vat= new G4VisAttributes(cyan);
859 americium_vat->SetVisibility(true);
860 americium_vat->SetForceSolid(true);
861 americium_log->SetVisAttributes(americium_vat);
862
863
864 // Photomultiplier: ETL 9829 QA ****************************************
865
866 G4double pmtHeight = 12.0*cm;
867 G4double pmtRadius = 2.6*cm;
868 G4double pmtVOffset = 1.0*cm;
869 G4double pmtVPosition = -0.5*(LXeTubeHeight+pmtHeight)+pmtVOffset;
870
871 G4Sphere* pmt_window = new G4Sphere("pmt_sphere", 0.*cm, 2.*pmtRadius,
872 0.*deg, 360.*deg, 0.*deg, 30.0*deg);
873 G4Tubs* pmt_tube = new G4Tubs("pmt_tube", 0.*cm, pmtRadius, 0.5*pmtHeight,
874 0.*deg, 360.*deg);
875
876 G4UnionSolid* pmt_sol = new G4UnionSolid("pmt_sol", pmt_tube, pmt_window,
877 G4Transform3D(G4RotationMatrix(), G4ThreeVector(0,0,0.5*pmtHeight
878 -2.*pmtRadius*std::cos(30.0*deg))));
879
880 pmt_log = new G4LogicalVolume(pmt_sol, pmt_mat, "pmt_log");
881 pmt_phys = new G4PVPlacement(0,G4ThreeVector(0.*cm, 0.*cm, pmtVPosition),
882 "pmt_phys", pmt_log, LXe_phys, false, 0);
883
884 G4OpticalSurface* pmt_opsurf = new G4OpticalSurface
885 ("pmt_opsurf",unified, polished, dielectric_dielectric);
886 //G4LogicalBorderSurface* pmt_surf =
887 new G4LogicalBorderSurface
888 ("pmt_surf", LXe_phys, pmt_phys, pmt_opsurf);
889
890 G4VisAttributes* pmt_vat= new G4VisAttributes(blue);
891 pmt_vat->SetForceSolid(true);
892 pmt_vat->SetVisibility(true);
893 pmt_log->SetVisAttributes(pmt_vat);
894
895
896 // photocathode *******************************************************
897
898 G4double phcathVOffset = 0.5*pmtHeight-2.*pmtRadius*std::cos(30.0*deg);
899 G4double phcathVPosition = phcathVOffset;
900
901 G4Sphere* phcath_sol = new G4Sphere("phcath_sphere",
902 2.*pmtRadius-1.6*mm, 2.*pmtRadius-1.59*mm, 0.*deg, 360.*deg, 0.*deg,
903 27.0*deg);
904
905 phcath_log = new G4LogicalVolume(phcath_sol, phcath_mat, "phcath_log");
906 phcath_phys = new G4PVPlacement(0, G4ThreeVector(0., 0., phcathVPosition),
907 "phcath_phys", phcath_log, pmt_phys, false, 0);
908
909 G4OpticalSurface* phcath_opsurf = new G4OpticalSurface("phcath_opsurf",
910 unified, polished, dielectric_dielectric);
911 //G4LogicalBorderSurface* phcath_surf =
912 new G4LogicalBorderSurface
913 ("phcath_surf", pmt_phys, phcath_phys, phcath_opsurf);
914
915 std::vector<G4double> phcath_PP = { 6.00*eV, 7.50*eV };
916 // std::vector<G4double> phcath_REFL = { 0.0, 0.0};
917 // G4MaterialPropertiesTable* phcath_mt = new G4MaterialPropertiesTable();
918 // phcath_mt->AddProperty("REFLECTIVITY", phcath_PP, phcath_REFL);
919 // phcath_opsurf->SetMaterialPropertiesTable(phcath_mt);
920
921
922 //**Photocathode surface properties
923 std::vector<G4double> photocath_EFF={1.,1.}; //Enables 'detection' of photons
924 std::vector<G4double> photocath_ReR={1.92,1.92};
925 std::vector<G4double> photocath_ImR={1.69,1.69};
926 G4MaterialPropertiesTable* photocath_mt = new G4MaterialPropertiesTable();
927 photocath_mt->AddProperty("EFFICIENCY",phcath_PP,photocath_EFF);
928 photocath_mt->AddProperty("REALRINDEX",phcath_PP,photocath_ReR);
929 photocath_mt->AddProperty("IMAGINARYRINDEX",phcath_PP,photocath_ImR);
930 G4OpticalSurface* photocath_opsurf=
931 new G4OpticalSurface("photocath_opsurf",glisur,polished,
932 dielectric_metal);
933 photocath_opsurf->SetMaterialPropertiesTable(photocath_mt);
934
935 G4VisAttributes* phcath_vat= new G4VisAttributes(lblue);
936 phcath_vat->SetForceSolid(true);
937 phcath_vat->SetVisibility(true);
938 phcath_log->SetVisAttributes(phcath_vat);
939
940 new G4LogicalSkinSurface("photocath_surf",phcath_log,photocath_opsurf);
941
942 // ......................................................................
943 // attach user limits ...................................................
944
945
946 G4cout << G4endl << "User Limits: " << G4endl
947 << "\t theMaxTimeCuts: " << G4BestUnit(theMaxTimeCuts,"Time")
948 << G4endl
949 << "\t theRoomTimeCut: " << G4BestUnit(theRoomTimeCut,"Time")
950 << G4endl
951 << "\t theMaxStepSize: " << G4BestUnit(theMaxStepSize,"Length")
952 << G4endl
953 << "\t theMinEKine: " << G4BestUnit(theMinEkine,"Energy")
954 << G4endl
955 << "\t minRoomMinEKine: " << G4BestUnit(theRoomMinEkine,"Energy")
956 << G4endl << G4endl;
957
958 if (theUserLimitsForRoom != 0) delete theUserLimitsForRoom;
959 if (theUserLimitsForDetector != 0) delete theUserLimitsForDetector;
960
961 theUserLimitsForRoom = new G4UserLimits(theMaxStepSize, // step length max
962 DBL_MAX, // track length max
963 theRoomTimeCut, // Time cut
964 theRoomMinEkine); // min energy
965
966 #include "DMXDetectorRoomLimits.icc"
967
968 theUserLimitsForDetector = new G4UserLimits(theDetectorStepSize,
969 DBL_MAX, // Track Max
970 theMaxTimeCuts,
971 theMinEkine);
972
973 world_log->SetUserLimits(theUserLimitsForRoom);
974 lab_log->SetUserLimits(theUserLimitsForRoom);
975 jacket_log->SetUserLimits(theUserLimitsForRoom);
976 vacuum_log->SetUserLimits(theUserLimitsForRoom);
977 vessel_log->SetUserLimits(theUserLimitsForRoom);
978 GXe_log->SetUserLimits(theUserLimitsForDetector);
979 // LXe_log->SetUserLimits(theUserLimitsForXenon);
980 LXe_log->SetUserLimits(theUserLimitsForDetector);
981 CuShield_log->SetUserLimits(theUserLimitsForDetector);
982 ring_log->SetUserLimits(theUserLimitsForDetector);
983 mirror_log->SetUserLimits(theUserLimitsForDetector);
984 grid1_log->SetUserLimits(theUserLimitsForDetector);
985 grid2_log->SetUserLimits(theUserLimitsForDetector);
986 alpha_log->SetUserLimits(theUserLimitsForDetector);
987 americium_log->SetUserLimits(theUserLimitsForDetector);
988 pmt_log->SetUserLimits(theUserLimitsForDetector);
989 phcath_log->SetUserLimits(theUserLimitsForDetector);
990
991 return world_phys;
992
993 }
994
995 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
996
997 void DMXDetectorConstruction::ConstructSDandField()
998 {
999 // ......................................................................
1000 // sensitive detectors ..................................................
1001 // ......................................................................
1002
1003 if (LXeSD.Get() == 0)
1004 {
1005 G4String name="/DMXDet/LXeSD";
1006 DMXScintSD* aSD = new DMXScintSD(name);
1007 LXeSD.Put(aSD);
1008 }
1009 G4SDManager::GetSDMpointer()->AddNewDetector(LXeSD.Get());
1010 if (LXe_log)
1011 SetSensitiveDetector(LXe_log,LXeSD.Get());
1012
1013 if (pmtSD.Get() == 0)
1014 {
1015 G4String name="/DMXDet/pmtSD";
1016 DMXPmtSD* aSD = new DMXPmtSD(name);
1017 pmtSD.Put(aSD);
1018 }
1019 G4SDManager::GetSDMpointer()->AddNewDetector(pmtSD.Get());
1020 if (phcath_log)
1021 SetSensitiveDetector(phcath_log,pmtSD.Get());
1022
1023 return;
1024 }
1025
1026
1027 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
1028
1029 // specific method to G4UserLimits:= SetUserMinEkine
1030 void DMXDetectorConstruction::SetRoomEnergyCut(G4double val)
1031 {
1032 // set minimum charged particle energy cut - NB: for ROOM
1033 theRoomMinEkine = val;
1034 if (theUserLimitsForRoom != 0)
1035 {
1036 theUserLimitsForRoom->SetUserMinEkine(val);
1037 G4cout << " Changing Room energy cut to: " << G4BestUnit(val,"Energy")
1038 << G4endl;
1039 }
1040 }
1041
1042 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
1043
1044 // specific method to G4UserLimits:= SetUserMinEkine
1045 void DMXDetectorConstruction::SetEnergyCut(G4double val)
1046 {
1047 // set minimum charged particle energy cut - NB: for Xenon Detector
1048 theMinEkine = val;
1049 if (theUserLimitsForDetector != 0)
1050 {
1051 theUserLimitsForDetector->SetUserMinEkine(val);
1052 G4cout << "Changing Detector energy cut to: " << G4BestUnit(val,"Energy")
1053 << G4endl;
1054 }
1055 }
1056
1057 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
1058
1059 // specific method to G4UserLimits:= SetUserMaxTime
1060 void DMXDetectorConstruction::SetRoomTimeCut(G4double val)
1061 {
1062 // set room time cut:
1063 theRoomTimeCut = val;
1064 if (theUserLimitsForRoom != 0)
1065 {
1066 theUserLimitsForRoom->SetUserMaxTime(val);
1067 G4cout << " Changing Room Time cut to: " << G4BestUnit(val,"Time")
1068 << G4endl;
1069 }
1070 }
1071
1072 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
1073
1074 // specific method to G4UserLimits:= SetUserMaxTime
1075 void DMXDetectorConstruction::SetTimeCut(G4double val)
1076 {
1077 // set detector time cut:
1078 theMaxTimeCuts = val;
1079 if (theUserLimitsForDetector != 0)
1080 {
1081 theUserLimitsForDetector->SetUserMaxTime(val);
1082 G4cout << " Changing Detector Time cut to: " << G4BestUnit(val,"Time")
1083 << G4endl;
1084 }
1085 }
1086
1087 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
1088
1089
1090
1091