1 /**************************************************************************
2 * Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
4 * Author: The ALICE Off-line Project. *
5 * Contributors are mentioned in the code where appropriate. *
7 * Permission to use, copy, modify and distribute this software and its *
8 * documentation strictly for non-commercial purposes is hereby granted *
9 * without fee, provided that the above copyright notice appears in all *
10 * copies and that both the copyright notice and this permission notice *
11 * appear in the supporting documentation. The authors make no claims *
12 * about the suitability of this software for any purpose. It is *
13 * provided "as is" without express or implied warranty. *
14 **************************************************************************/
18 Revision 1.10 2002/10/29 17:20:37 hristov
19 Corrections for subscript out of range (Alpha)
21 Revision 1.9 2002/10/23 06:47:56 alibrary
22 Introducing Riostream.h
24 Revision 1.8 2002/10/14 14:55:34 hristov
25 Merging the VirtualMC branch to the main development branch (HEAD)
27 Revision 1.4.2.4 2002/10/10 14:40:31 hristov
28 Updating VirtualMC to v3-09-02
30 Revision 1.7 2002/10/07 11:13:25 gamez
33 Revision 1.6 2002/07/26 06:21:12 gamez
34 CRT3 volume taken as sensitive volume
36 Revision 1.5 2002/07/25 12:52:34 morsch
37 AddHit call only if hit has been defined.
39 Revision 1.4 2002/07/12 12:57:29 gamez
40 Division of CRT1 corrected
42 Revision 1.3.2.1 2002/07/12 12:32:50 gamez
43 Division of CRT1 corrected
45 Revision 1.3 2002/07/10 15:57:04 gamez
46 CreateHall() removed, and new Molasse volumes
48 Revision 1.2 2002/07/09 08:45:35 hristov
49 Old style include files needed on HP (aCC)
51 Revision 1.1 2002/06/16 17:08:19 hristov
57 ///////////////////////////////////////////////////////////////////////////////
59 // ALICE Cosmic Ray Trigger //
61 // This class contains the functions for version 0 of the ALICE Cosmic Ray //
62 // Trigger. This version will be used to simulation comic rays in alice //
63 // with all the detectors. //
67 // Arturo Fernandez <afernand@fcfm.buap.mx>
68 // Enrique Gamez <egamez@fcfm.buap.mx>
70 // Universidad Autonoma de Puebla
75 <img src="picts/AliCRTv0Class.gif">
78 <p>The responsible person for this module is
79 <a href="mailto:egamez@fcfm.buap.mx">Enrique Gamez</a>.
85 ///////////////////////////////////////////////////////////////////////////////
87 #include <Riostream.h>
89 #include <TGeometry.h>
92 #include <TLorentzVector.h>
100 #include "AliCRTConstants.h"
104 //_____________________________________________________________________________
105 AliCRTv0::AliCRTv0() : AliCRT()
108 // Default constructor for CRT v0
112 //_____________________________________________________________________________
113 AliCRTv0::AliCRTv0(const char *name, const char *title)
117 // Standard constructor for CRT v0
121 <img src="picts/AliCRTv0.gif">
126 //_____________________________________________________________________________
127 AliCRTv0::AliCRTv0(const AliCRTv0& crt)
135 //_____________________________________________________________________________
136 AliCRTv0& AliCRTv0::operator= (const AliCRTv0& crt)
139 // Asingment operator.
145 //_____________________________________________________________________________
146 void AliCRTv0::BuildGeometry()
149 // Create the ROOT TNode geometry for the CRT
154 const Int_t kColorCRT = kRed;
156 // Find the top node alice.
157 top = gAlice->GetGeometry()->GetNode("alice");
159 new TBRIK("S_CRT_A", "CRT box", "void",
160 AliCRTConstants::fgActiveAreaLenght/2.,
161 AliCRTConstants::fgActiveAreaHeight/2.,
162 AliCRTConstants::fgActiveAreaWidth/2.);
165 new TRotMatrix("Left", "Left", 90., 315., 90., 45., 0., 337.5);
166 new TRotMatrix("Right", "Right", 90., 45., 90., 315., 180., 202.5);
167 new TRotMatrix("Up", "Up", 90., 0., 90., 90., 0., 90.);
171 // Put 4 modules on the top of the magnet
172 Float_t box = AliCRTConstants::fgCageWidth/2.;
174 node = new TNode("upper1", "upper1", "S_CRT_A", 0., 790., 3.*box, "Up");
175 node->SetLineColor(kColorCRT);
179 node = new TNode("upper2", "upper2", "S_CRT_A", 0., 790., box, "Up");
180 node->SetLineColor(kColorCRT);
184 node = new TNode("upper3", "upper3", "S_CRT_A", 0., 790., -1.*box, "Up");
185 node->SetLineColor(kColorCRT);
189 node = new TNode("upper4", "upper4", "S_CRT_A", 0., 790., -3.*box, "Up");
190 node->SetLineColor(kColorCRT);
194 // Modules on the left side.
195 Float_t xtragap = 10.;
196 Float_t initXside = (790.+xtragap)*TMath::Sin(2*22.5*kDegrad); //rigth side
197 Float_t initYside = (790.+xtragap)*TMath::Cos(2*22.5*kDegrad);
199 node = new TNode("upper5", "upper5", "S_CRT_A", initXside, initYside, 3.*box, "Left");
200 node->SetLineColor(kColorCRT);
204 node = new TNode("upper6", "upper6", "S_CRT_A", initXside, initYside, box, "Left");
205 node->SetLineColor(kColorCRT);
209 node = new TNode("upper7", "upper7", "S_CRT_A", initXside, initYside, -1.*box, "Left");
210 node->SetLineColor(kColorCRT);
214 node = new TNode("upper8", "upper8", "S_CRT_A", initXside, initYside, -3.*box, "Left");
215 node->SetLineColor(kColorCRT);
219 // Modules on the right side.
221 node = new TNode("upper9", "upper9", "S_CRT_A", -initXside, initYside, 3.*box, "Right");
222 node->SetLineColor(kColorCRT);
226 node = new TNode("upper10", "upper10", "S_CRT_A", -initXside, initYside, box, "Right");
227 node->SetLineColor(kColorCRT);
231 node = new TNode("upper11","upper11", "S_CRT_A", -initXside, initYside, -1.*box, "Right");
232 node->SetLineColor(kColorCRT);
236 node = new TNode("upper12","upper12", "S_CRT_A", -initXside, initYside, -3.*box, "Right");
237 node->SetLineColor(kColorCRT);
243 //_____________________________________________________________________________
244 void AliCRTv0::CreateGeometry()
247 // Create geometry for the CRT array
249 Int_t idrotm[2499]; // The rotation matrix.
251 Int_t * idtmed = fIdtmed->GetArray() - 1099 ;
261 box[0] = AliCRTConstants::fgCageLenght/2.; // Half Length of the box along the X axis, cm.
262 box[1] = AliCRTConstants::fgCageHeight/2.; // Half Length of the box along the Y axis, cm.
263 box[2] = AliCRTConstants::fgCageWidth/2.; // Half Length of the box along the Z axis, cm.
266 // Define the Scintillators. as a big box.
268 scint[0] = AliCRTConstants::fgActiveAreaLenght/2.; // Half Length in X
269 scint[1] = AliCRTConstants::fgActiveAreaHeight/2.; // Half Length in Y
270 scint[2] = AliCRTConstants::fgActiveAreaWidth/2.; // Half Length in Z
271 gMC->Gsvolu("CRT1", "BOX ", idtmed[1112], scint, 3); // Scintillators
274 // Define the coordinates where the draw will begin.
279 // we'll start dawing from the center.
284 Float_t gapY = 30.; // 30 cms. above the barrel.
285 // For the height we staimate the from the center of the ceiling,
286 // if were a cilinder, must be about 280cm.
287 Float_t barrel = 790.; // Barrel radius.
288 Float_t height = barrel + gapY - 30.;
289 Float_t initY = height;
293 // we'll start dawing from the center.
296 // Put 4 modules on the top of the magnet
298 for ( Int_t i = 1 ; i <= 4 ; i++ ) {
299 gMC->Gspos("CRT1", i, "ALIC", initX, initY, (i-step)*box[2], 0, "ONLY");
303 // Modules on the barrel sides.
304 // Because the openenig angle for each face is 22.5, and if we want to
305 // put the modules right in the middle
306 Float_t xtragap = 10.;
307 Float_t initXside = (height+xtragap)*TMath::Sin(2*22.5*kDegrad); //rigth side
308 Float_t initYside = (height+xtragap)*TMath::Cos(2*22.5*kDegrad);
310 // Put 4 modules on the left side of the magnet
311 // The rotation matrix parameters, for the left side.
312 AliMatrix(idrotm[232], 90., 315., 90., 45., 0., 337.5);
314 for ( Int_t i = 1 ; i <= 4 ; i++ ) {
315 gMC->Gspos("CRT1", i+4, "ALIC", initXside, initYside, (i-stepl)*box[2],
316 idrotm[232], "ONLY");
320 // Put 4 modules on the right side of the magnet
321 // The rotation matrix parameters for the right side.
322 AliMatrix(idrotm[231], 90., 45., 90., 315., 180., 202.5);
324 for ( Int_t i = 1 ; i <= 4 ; i++ ) {
325 gMC->Gspos("CRT1", i+8, "ALIC", -initXside, initYside, (i-stepr)*box[2],
326 idrotm[231], "ONLY");
330 // Divide the modules in 2 planes.
331 //gMC->Gsdvn("CRT2", "CRT1", 2, 2);
332 // Now divide each plane in 8 palettes
333 //gMC->Gsdvn("CRT3", "CRT2", 8, 3);
337 //_____________________________________________________________________________
338 void AliCRTv0::CreateMolasse()
340 Int_t idrotm[2499]; // The rotation matrix.
342 Int_t * idtmed = fIdtmed->GetArray() - 1099 ;
348 // Exactly above the hall
351 tspar[1] = 1170. + 375.;
352 tspar[2] = (1900.+1150.)/2.+100.;
355 gMC->Gsvolu("CMO1", "TUBS", idtmed[1123], tspar, 5);
356 gMC->Gspos("CMO1", 1, "ALIC", 0., 500., 1900.-tspar[2]+400., 0, "MANY");
360 tbox[1] = (4420. - 1670.)/2.;
361 tbox[2] = (1900.+1150.)/2. + 200.;
362 gMC->Gsvolu("CM12", "BOX", idtmed[1123], tbox, 3);
363 gMC->Gspos("CM12", 1, "ALIC", 0., 4420. -tbox[1], 1900.-tbox[2]+400., 0, "MANY");
365 AliMatrix(idrotm[2003], 0., 0., 90., 0., 90., 90.);
368 tube[0] = 455. + 100.;
369 tube[1] = 555. + 375.;
370 tube[2] = (5150. - 1166.)/2.;
371 gMC->Gsvolu("CMO2", "TUBE", idtmed[1123], tube, 3);
372 gMC->Gspos("CMO2", 1, "ALIC", -2100., 4420.-tube[2], 0., idrotm[2003], "MANY");
378 tube[2] = (5150. - 690.)/2.;
379 gMC->Gsvolu("CMO3", "TUBE", idtmed[1123], tube, 3);
380 gMC->Gspos("CMO3", 1, "ALIC", 375., 4420.-tube[2], 1900.+2987.7, idrotm[2003], "MANY");
381 // Behind the PGC2 up to the end of the M. volume.
383 tbox[1] = 2575. + 95.;
384 tbox[2] = (12073. - 1900.-2987.7-650.)/2.;
385 gMC->Gsvolu("CMO7", "BOX", idtmed[1123], tbox, 3);
386 gMC->Gspos("CMO7", 1, "ALIC", 0., 4420.-tbox[1], 1900.+2987.7+650.+tbox[2], 0, "MANY");
388 // Along the PX24 , upper part.
391 tube[2] = 2575. - 1300. + 95.;
392 gMC->Gsvolu("CMO4", "TUBE", idtmed[1123], tube, 3);
393 gMC->Gspos("CMO4", 1, "ALIC", 0., 404.+1300.+tube[2], -2300., idrotm[2003], "MANY");
395 // Along the PX24 , lower part
399 tspar[3] = kRaddeg*TMath::ASin(1070./1150.);
400 tspar[4] = 360. - tspar[3];
401 gMC->Gsvolu("CMO5", "TUBS", idtmed[1123], tspar, 5);
402 gMC->Gspos("CMO5", 1, "ALIC", 0., 404., -2300., idrotm[2003], "MANY");
405 tbox[1] = 2575. + 95.;
407 gMC->Gsvolu("CMO6", "BOX", idtmed[1123], tbox, 3);
408 gMC->Gspos("CMO6", 1, "ALIC", 0., 4420.-tbox[1], -3550.-tbox[2], 0, "MANY");
411 // On the right side of th hall
412 tbox[0] = (12073. - 1250.)/2.;
413 tbox[1] = 2575. + 95.;
414 tbox[2] = (8437.7+650.)/2.;
415 gMC->Gsvolu("CMO8", "BOX", idtmed[1123], tbox, 3);
416 gMC->Gspos("CMO8", 1, "ALIC", 1250.+tbox[0], 4420.-tbox[1], -3550.+tbox[2], 0, "MANY");
418 // on the left side of the hall, behind
419 tbox[0] = (12073. - 2755.)/2.;
420 tbox[1] = 2575. + 95.;
421 tbox[2] = (8437.7+650.)/2.;
422 gMC->Gsvolu("CMO9", "BOX", idtmed[1123], tbox, 3);
423 gMC->Gspos("CMO9", 1, "ALIC", -2755.-tbox[0], 4420.-tbox[1], -3550.+tbox[2], 0, "MANY");
426 // Molasse betwen the PX24 & PM25 on the left side.
427 tbox[0] = (2755. - 1250.)/2.;
428 tbox[1] = 2575. + 95.;
429 tbox[2] = (3550. - 555.)/2.;
430 gMC->Gsvolu("CM10", "BOX", idtmed[1123], tbox, 3);
431 gMC->Gspos("CM10", 1, "ALIC", -1250.-tbox[0], 4420.-tbox[1], -tbox[2]-555., 0, "MANY");
434 // Molasse betwen the PGC2 & PM25 on the left side.
435 tbox[0] = (2755. - 1250.)/2.;
436 tbox[1] = 2575. + 95.;
437 tbox[2] = (1900.+2987.7 - 555. + 650.)/2.;
438 gMC->Gsvolu("CM11", "BOX", idtmed[1123], tbox, 3);
439 gMC->Gspos("CM11", 1, "ALIC", -1250.-tbox[0], 4420.-tbox[1], 555.+tbox[2], 0, "MANY");
444 //_____________________________________________________________________________
445 void AliCRTv0::CreateShafts()
450 Int_t idrotm[2499]; // The rotation matrix.
452 Int_t * idtmed = fIdtmed->GetArray() - 1099 ;
461 gMC->Gsvolu("CHC1", "TUBS", idtmed[1116], ptubs, 5);
462 gMC->Gspos("CHC1", 1, "ALIC", 0., 500., 0., 0, "ONLY");
468 AliMatrix(idrotm[2001], 0., 0., 90., 0., 90., 90.);
474 ptubs[3] = kRaddeg*TMath::ASin(1070./ptubs[0]);
475 ptubs[4] = 360 - ptubs[3];
476 gMC->Gsvolu("CSF1", "TUBS", idtmed[1116], ptubs, 5);
477 gMC->Gspos("CSF1", 1, "ALIC", 0., 404., -2300., idrotm[2001], "MANY");
482 ptube[2] = 2575. - ptubs[2] + 95.;
483 gMC->Gsvolu("CSF2", "TUBE", idtmed[1116], ptube, 3);
484 gMC->Gspos("CSF2", 1, "ALIC", 0., 404.+ptubs[2]+ptube[2], -2300., idrotm[2001], "MANY");
486 // Concrete walls along the shaft
489 pbox[1] = 2575. + 95.;
491 gMC->Gsvolu("CSW1", "BOX", idtmed[1116], pbox, 3);
492 gMC->Gspos("CSW1", 1, "ALIC", -290-pbox[0], 404.-1300.+pbox[1], -3450.+210.*2, 0, "MANY");
496 pbox[1] = 2575. + 95.;
498 gMC->Gsvolu("CSW3", "BOX", idtmed[1116], pbox, 3);
499 gMC->Gspos("CSW3", 1, "ALIC", 420.-290.+pbox[0], 404.-1300.+pbox[1], -3450.+210.*2, 0, "MANY");
503 pbox[1] = 2575. + 95.;
505 gMC->Gsvolu("CSW2", "BOX", idtmed[1116], pbox, 3);
506 gMC->Gspos("CSW2", 1, "ALIC", -290-pbox[0], 404.-1300.+pbox[1], -3450.+pbox[2], 0, "MANY");
507 gMC->Gspos("CSW2", 2, "ALIC", 420.-290.+pbox[0], 404.-1300.+pbox[1], -3450.+pbox[2], 0, "MANY");
514 gMC->Gsvolu("CSP1", "BOX", idtmed[1116], pbox, 3);
515 gMC->Gspos("CSP1", 1, "ALIC", 0., 2600.-700., -1150-pbox[2], 0, "MANY");
521 gMC->Gsvolu("CSP2", "BOX", idtmed[1116], pbox, 3);
522 gMC->Gspos("CSP2", 1, "ALIC", 0., 2950.-700., -3450+pbox[2], 0, "MANY");
528 gMC->Gsvolu("CSP3", "BOX", idtmed[1116], pbox, 3);
529 gMC->Gspos("CSP3", 1, "ALIC", 0., 2950.-700., -1150.-210.-pbox[2], 0, "MANY");
535 gMC->Gsvolu("CSP4", "BOX", idtmed[1116], pbox, 3);
536 gMC->Gspos("CSP4", 1, "ALIC", 0., 2950.-700.+155.+pbox[1], -1150.-210.-pbox[2], 0, "MANY");
543 gMC->Gsvolu("CSP5", "BOX", idtmed[1116], pbox, 3);
544 gMC->Gspos("CSP5", 1, "ALIC", 0., 2950.-700., -3450.+460.+pbox[2], 0, "MANY");
550 gMC->Gsvolu("CSP6", "BOX", idtmed[1116], pbox, 3);
551 gMC->Gspos("CSP6", 1, "ALIC", 1150.-600., 2950.-700., -3450.+460.+pbox[2], 0, "MANY");
552 gMC->Gspos("CSP6", 2, "ALIC", -1150.+600., 2950.-700., -3450.+460.+pbox[2], 0, "MANY");
559 gMC->Gsvolu("CSP7", "BOX", idtmed[1116], pbox, 3);
560 gMC->Gspos("CSP7", 1, "ALIC", 850.+pbox[0], 2950.-700.+100., -3450.+460.+pbox[2], 0, "MANY");
561 gMC->Gspos("CSP7", 2, "ALIC", -850.-pbox[0], 2950.-700.+100., -3450.+460.+pbox[2], 0, "MANY");
566 ptube[1] = ptube[0] + 100.;
567 ptube[2] = (5150. - 1166.)/2.;
568 gMC->Gsvolu("CSF3", "TUBE", idtmed[1116], ptube, 3);
569 gMC->Gspos("CSF3", 1, "ALIC", -2100., AliCRTConstants::fgDepth-ptube[2], 0., idrotm[2001], "MANY");
573 ptube[1] = ptube[0] + 100.;
574 ptube[2] = (5150. - 690.)/2.;
575 gMC->Gsvolu("CSF4", "TUBE", idtmed[1116], ptube, 3);
576 gMC->Gspos("CSF4", 1, "ALIC", 375., AliCRTConstants::fgDepth-ptube[2], 1900.+2987.7, idrotm[2001], "MANY");
580 //_____________________________________________________________________________
582 void AliCRTv0::CreateMaterials()
584 // Use the standard materials.
585 AliCRT::CreateMaterials();
589 //_____________________________________________________________________________
590 void AliCRTv0::DrawDetector()
593 // Draw a shaded view of the L3 magnet
595 cout << "AliCRTv0::DrawModule() : Drawing the module" << endl;
597 gMC->Gsatt("*", "seen", -1);
598 gMC->Gsatt("alic", "seen", 0);
600 gMC->Gsatt("ALIC","seen",0);
601 gMC->Gsatt("L3MO","seen",1); // L3 Magnet
602 gMC->Gsatt("CRT1","seen",1); // Scintillators
604 // Draw the molasse volumes
605 gMC->Gsatt("CMO1","seen",0); // Exactly above the HALL
606 gMC->Gsatt("CMO2","seen",0); // Molasse, along the PM25
607 gMC->Gsatt("CMO3","seen",0); // molasse along the PGC2
608 gMC->Gsatt("CMO4","seen",0); // Molasse, behind the PX24 upper part
609 gMC->Gsatt("CMO5","seen",0); // molasse behind px24, lower part
610 gMC->Gsatt("CMO6","seen",0); // behind the PX24
611 gMC->Gsatt("CMO7","seen",0); // behind the PGC2
612 gMC->Gsatt("CMO8","seen",0); // on the right side.
613 gMC->Gsatt("CMO9","seen",0); // on the left side.
614 gMC->Gsatt("CM10","seen",0); // betwen PX24 & PM25.
615 gMC->Gsatt("CM11","seen",0); // betwen PGC2 & PM25.
616 gMC->Gsatt("CM12","seen",0); // box above the hall.
618 gMC->Gdopt("hide", "on");
619 gMC->Gdopt("edge","off");
620 gMC->Gdopt("shad", "on");
621 gMC->Gsatt("*", "fill", 7);
622 gMC->SetClipBox("ALIC", 0, 3000, -3000, 3000, -6000, 6000);
624 gMC->Gdraw("alic", 40, 30, 0, 10, 9.5, .009, .009);
625 gMC->Gdhead(1111, "View of CRT(ACORDE)");
626 gMC->Gdman(18, 4, "MAN");
631 //_____________________________________________________________________________
632 void AliCRTv0::Init()
635 // Initialise L3 magnet after it has been built
639 printf("\n%s: ",ClassName());
640 for(i=0;i<35;i++) printf("*");
641 printf(" CRTv0_INIT ");
642 for(i=0;i<35;i++) printf("*");
643 printf("\n%s: ",ClassName());
645 // Here the CRTv0 initialisation code (if any!)
646 for(i=0;i<80;i++) printf("*");
652 //_____________________________________________________________________________
653 void AliCRTv0::StepManager()
656 // Called for every step in the Cosmic Ray Trigger
664 static Float_t hits[14];
665 Int_t tracknumber = gAlice->CurrentTrack();
667 static Float_t eloss;
668 static Float_t tlength;
672 if ( !gMC->IsTrackAlive() ) return;
674 if (gMC->IsNewTrack()) {
675 // Reset the deposited energy
679 eloss += gMC->Edep(); // Store the energy loss along the trajectory.
680 tlength += gMC->TrackStep();
682 if (gMC->IsTrackEntering() && (strcmp(gMC->CurrentVolName(),"CM12") == 0) ) {
684 // Get current particle id (ipart), track position (pos) and momentum (mom)
685 gMC->TrackPosition(pos);
686 gMC->TrackMomentum(mom);
687 ipart = gMC->TrackPid();
689 Double_t tc = mom[0]*mom[0]+mom[1]*mom[1];
690 Double_t pt = TMath::Sqrt(tc);
691 theta = Float_t(TMath::ATan2(pt,Double_t(mom[2])))*kRaddeg;
692 phi = Float_t(TMath::ATan2(Double_t(mom[1]),Double_t(mom[0])))*kRaddeg;
695 vol[0] = gMC->CurrentVolOffID(1, vol[1]);
696 vol[2] = gMC->CurrentVolID(copy);
699 hits[0] = 0.f; // (fnmou)
700 hits[1] = (Float_t)ipart; // (fId)
702 hits[2] = pos[0]; // X coordinate (fX)
703 hits[3] = pos[1]; // Y coordinate (fY)
704 hits[4] = pos[2]; // Z coordinate (fZ)
705 hits[5] = mom[0]; // Px (fpxug)
706 hits[6] = mom[1]; // Py (fpyug)
707 hits[7] = mom[2]; // Pz (fpzug)
709 hits[8] = gMC->GetMedium();//layer(flay)
710 hits[9] = theta; // arrival angle
712 hits[11] = eloss; // Energy loss
713 hits[12] = tlength; // Trajectory lenght
714 hits[13] = (Float_t)tracknumber;
716 AddHit(gAlice->CurrentTrack(),vol, hits);