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 1.9 2002/10/23 06:47:56 alibrary
19 Introducing Riostream.h
21 Revision 1.8 2002/10/14 14:55:34 hristov
22 Merging the VirtualMC branch to the main development branch (HEAD)
24 Revision 1.4.2.4 2002/10/10 14:40:31 hristov
25 Updating VirtualMC to v3-09-02
27 Revision 1.7 2002/10/07 11:13:25 gamez
30 Revision 1.6 2002/07/26 06:21:12 gamez
31 CRT3 volume taken as sensitive volume
33 Revision 1.5 2002/07/25 12:52:34 morsch
34 AddHit call only if hit has been defined.
36 Revision 1.4 2002/07/12 12:57:29 gamez
37 Division of CRT1 corrected
39 Revision 1.3.2.1 2002/07/12 12:32:50 gamez
40 Division of CRT1 corrected
42 Revision 1.3 2002/07/10 15:57:04 gamez
43 CreateHall() removed, and new Molasse volumes
45 Revision 1.2 2002/07/09 08:45:35 hristov
46 Old style include files needed on HP (aCC)
48 Revision 1.1 2002/06/16 17:08:19 hristov
54 ///////////////////////////////////////////////////////////////////////////////
56 // ALICE Cosmic Ray Trigger //
58 // This class contains the functions for version 0 of the ALICE Cosmic Ray //
59 // Trigger. This version will be used to simulation comic rays in alice //
60 // with all the detectors. //
64 // Arturo Fernandez <afernand@fcfm.buap.mx>
65 // Enrique Gamez <egamez@fcfm.buap.mx>
67 // Universidad Autonoma de Puebla
72 <img src="picts/AliCRTv0Class.gif">
75 <p>The responsible person for this module is
76 <a href="mailto:egamez@fcfm.buap.mx">Enrique Gamez</a>.
82 ///////////////////////////////////////////////////////////////////////////////
84 #include <Riostream.h>
86 #include <TGeometry.h>
89 #include <TLorentzVector.h>
98 #include "AliCRTConstants.h"
102 //_____________________________________________________________________________
103 AliCRTv0::AliCRTv0() : AliCRT()
106 // Default constructor for CRT v0
110 //_____________________________________________________________________________
111 AliCRTv0::AliCRTv0(const char *name, const char *title)
115 // Standard constructor for CRT v0
119 <img src="picts/AliCRTv0.gif">
124 //_____________________________________________________________________________
125 AliCRTv0::AliCRTv0(const AliCRTv0& crt)
133 //_____________________________________________________________________________
134 AliCRTv0& AliCRTv0::operator= (const AliCRTv0& crt)
137 // Asingment operator.
143 //_____________________________________________________________________________
144 void AliCRTv0::BuildGeometry()
147 // Create the ROOT TNode geometry for the CRT
152 const Int_t kColorCRT = kRed;
154 // Find the top node alice.
155 top = gAlice->GetGeometry()->GetNode("alice");
157 new TBRIK("S_CRT_A", "CRT box", "void",
158 AliCRTConstants::fgActiveAreaLenght/2.,
159 AliCRTConstants::fgActiveAreaHeight/2.,
160 AliCRTConstants::fgActiveAreaWidth/2.);
163 new TRotMatrix("Left", "Left", 90., 315., 90., 45., 0., 337.5);
164 new TRotMatrix("Right", "Right", 90., 45., 90., 315., 180., 202.5);
165 new TRotMatrix("Up", "Up", 90., 0., 90., 90., 0., 90.);
169 // Put 4 modules on the top of the magnet
170 Float_t box = AliCRTConstants::fgCageWidth/2.;
172 node = new TNode("upper1", "upper1", "S_CRT_A", 0., 790., 3.*box, "Up");
173 node->SetLineColor(kColorCRT);
177 node = new TNode("upper2", "upper2", "S_CRT_A", 0., 790., box, "Up");
178 node->SetLineColor(kColorCRT);
182 node = new TNode("upper3", "upper3", "S_CRT_A", 0., 790., -1.*box, "Up");
183 node->SetLineColor(kColorCRT);
187 node = new TNode("upper4", "upper4", "S_CRT_A", 0., 790., -3.*box, "Up");
188 node->SetLineColor(kColorCRT);
192 // Modules on the left side.
193 Float_t xtragap = 10.;
194 Float_t initXside = (790.+xtragap)*TMath::Sin(2*22.5*kDegrad); //rigth side
195 Float_t initYside = (790.+xtragap)*TMath::Cos(2*22.5*kDegrad);
197 node = new TNode("upper5", "upper5", "S_CRT_A", initXside, initYside, 3.*box, "Left");
198 node->SetLineColor(kColorCRT);
202 node = new TNode("upper6", "upper6", "S_CRT_A", initXside, initYside, box, "Left");
203 node->SetLineColor(kColorCRT);
207 node = new TNode("upper7", "upper7", "S_CRT_A", initXside, initYside, -1.*box, "Left");
208 node->SetLineColor(kColorCRT);
212 node = new TNode("upper8", "upper8", "S_CRT_A", initXside, initYside, -3.*box, "Left");
213 node->SetLineColor(kColorCRT);
217 // Modules on the right side.
219 node = new TNode("upper9", "upper9", "S_CRT_A", -initXside, initYside, 3.*box, "Right");
220 node->SetLineColor(kColorCRT);
224 node = new TNode("upper10", "upper10", "S_CRT_A", -initXside, initYside, box, "Right");
225 node->SetLineColor(kColorCRT);
229 node = new TNode("upper11","upper11", "S_CRT_A", -initXside, initYside, -1.*box, "Right");
230 node->SetLineColor(kColorCRT);
234 node = new TNode("upper12","upper12", "S_CRT_A", -initXside, initYside, -3.*box, "Right");
235 node->SetLineColor(kColorCRT);
241 //_____________________________________________________________________________
242 void AliCRTv0::CreateGeometry()
245 // Create geometry for the CRT array
247 Int_t idrotm[2499]; // The rotation matrix.
249 Int_t * idtmed = fIdtmed->GetArray() - 1099 ;
259 box[0] = AliCRTConstants::fgCageLenght/2.; // Half Length of the box along the X axis, cm.
260 box[1] = AliCRTConstants::fgCageHeight/2.; // Half Length of the box along the Y axis, cm.
261 box[2] = AliCRTConstants::fgCageWidth/2.; // Half Length of the box along the Z axis, cm.
264 // Define the Scintillators. as a big box.
266 scint[0] = AliCRTConstants::fgActiveAreaLenght/2.; // Half Length in X
267 scint[1] = AliCRTConstants::fgActiveAreaHeight/2.; // Half Length in Y
268 scint[2] = AliCRTConstants::fgActiveAreaWidth/2.; // Half Length in Z
269 gMC->Gsvolu("CRT1", "BOX ", idtmed[1112], scint, 3); // Scintillators
272 // Define the coordinates where the draw will begin.
277 // we'll start dawing from the center.
282 Float_t gapY = 30.; // 30 cms. above the barrel.
283 // For the height we staimate the from the center of the ceiling,
284 // if were a cilinder, must be about 280cm.
285 Float_t barrel = 790.; // Barrel radius.
286 Float_t height = barrel + gapY - 30.;
287 Float_t initY = height;
291 // we'll start dawing from the center.
294 // Put 4 modules on the top of the magnet
296 for ( Int_t i = 1 ; i <= 4 ; i++ ) {
297 gMC->Gspos("CRT1", i, "ALIC", initX, initY, (i-step)*box[2], 0, "ONLY");
301 // Modules on the barrel sides.
302 // Because the openenig angle for each face is 22.5, and if we want to
303 // put the modules right in the middle
304 Float_t xtragap = 10.;
305 Float_t initXside = (height+xtragap)*TMath::Sin(2*22.5*kDegrad); //rigth side
306 Float_t initYside = (height+xtragap)*TMath::Cos(2*22.5*kDegrad);
308 // Put 4 modules on the left side of the magnet
309 // The rotation matrix parameters, for the left side.
310 AliMatrix(idrotm[232], 90., 315., 90., 45., 0., 337.5);
312 for ( Int_t i = 1 ; i <= 4 ; i++ ) {
313 gMC->Gspos("CRT1", i+4, "ALIC", initXside, initYside, (i-stepl)*box[2],
314 idrotm[232], "ONLY");
318 // Put 4 modules on the right side of the magnet
319 // The rotation matrix parameters for the right side.
320 AliMatrix(idrotm[231], 90., 45., 90., 315., 180., 202.5);
322 for ( Int_t i = 1 ; i <= 4 ; i++ ) {
323 gMC->Gspos("CRT1", i+8, "ALIC", -initXside, initYside, (i-stepr)*box[2],
324 idrotm[231], "ONLY");
328 // Divide the modules in 2 planes.
329 //gMC->Gsdvn("CRT2", "CRT1", 2, 2);
330 // Now divide each plane in 8 palettes
331 //gMC->Gsdvn("CRT3", "CRT2", 8, 3);
335 //_____________________________________________________________________________
336 void AliCRTv0::CreateMolasse()
338 Int_t idrotm[2499]; // The rotation matrix.
340 Int_t * idtmed = fIdtmed->GetArray() - 1099 ;
346 // Exactly above the hall
349 tspar[1] = 1170. + 375.;
350 tspar[2] = (1900.+1150.)/2.+100.;
353 gMC->Gsvolu("CMO1", "TUBS", idtmed[1123], tspar, 5);
354 gMC->Gspos("CMO1", 1, "ALIC", 0., 500., 1900.-tspar[2]+400., 0, "MANY");
358 tbox[1] = (4420. - 1670.)/2.;
359 tbox[2] = (1900.+1150.)/2. + 200.;
360 gMC->Gsvolu("CM12", "BOX", idtmed[1123], tbox, 3);
361 gMC->Gspos("CM12", 1, "ALIC", 0., 4420. -tbox[1], 1900.-tbox[2]+400., 0, "MANY");
363 AliMatrix(idrotm[2003], 0., 0., 90., 0., 90., 90.);
366 tube[0] = 455. + 100.;
367 tube[1] = 555. + 375.;
368 tube[2] = (5150. - 1166.)/2.;
369 gMC->Gsvolu("CMO2", "TUBE", idtmed[1123], tube, 3);
370 gMC->Gspos("CMO2", 1, "ALIC", -2100., 4420.-tube[2], 0., idrotm[2003], "MANY");
376 tube[2] = (5150. - 690.)/2.;
377 gMC->Gsvolu("CMO3", "TUBE", idtmed[1123], tube, 3);
378 gMC->Gspos("CMO3", 1, "ALIC", 375., 4420.-tube[2], 1900.+2987.7, idrotm[2003], "MANY");
379 // Behind the PGC2 up to the end of the M. volume.
381 tbox[1] = 2575. + 95.;
382 tbox[2] = (12073. - 1900.-2987.7-650.)/2.;
383 gMC->Gsvolu("CMO7", "BOX", idtmed[1123], tbox, 3);
384 gMC->Gspos("CMO7", 1, "ALIC", 0., 4420.-tbox[1], 1900.+2987.7+650.+tbox[2], 0, "MANY");
386 // Along the PX24 , upper part.
389 tube[2] = 2575. - 1300. + 95.;
390 gMC->Gsvolu("CMO4", "TUBE", idtmed[1123], tube, 3);
391 gMC->Gspos("CMO4", 1, "ALIC", 0., 404.+1300.+tube[2], -2300., idrotm[2003], "MANY");
393 // Along the PX24 , lower part
397 tspar[3] = kRaddeg*TMath::ASin(1070./1150.);
398 tspar[4] = 360. - tspar[3];
399 gMC->Gsvolu("CMO5", "TUBS", idtmed[1123], tspar, 5);
400 gMC->Gspos("CMO5", 1, "ALIC", 0., 404., -2300., idrotm[2003], "MANY");
403 tbox[1] = 2575. + 95.;
405 gMC->Gsvolu("CMO6", "BOX", idtmed[1123], tbox, 3);
406 gMC->Gspos("CMO6", 1, "ALIC", 0., 4420.-tbox[1], -3550.-tbox[2], 0, "MANY");
409 // On the right side of th hall
410 tbox[0] = (12073. - 1250.)/2.;
411 tbox[1] = 2575. + 95.;
412 tbox[2] = (8437.7+650.)/2.;
413 gMC->Gsvolu("CMO8", "BOX", idtmed[1123], tbox, 3);
414 gMC->Gspos("CMO8", 1, "ALIC", 1250.+tbox[0], 4420.-tbox[1], -3550.+tbox[2], 0, "MANY");
416 // on the left side of the hall, behind
417 tbox[0] = (12073. - 2755.)/2.;
418 tbox[1] = 2575. + 95.;
419 tbox[2] = (8437.7+650.)/2.;
420 gMC->Gsvolu("CMO9", "BOX", idtmed[1123], tbox, 3);
421 gMC->Gspos("CMO9", 1, "ALIC", -2755.-tbox[0], 4420.-tbox[1], -3550.+tbox[2], 0, "MANY");
424 // Molasse betwen the PX24 & PM25 on the left side.
425 tbox[0] = (2755. - 1250.)/2.;
426 tbox[1] = 2575. + 95.;
427 tbox[2] = (3550. - 555.)/2.;
428 gMC->Gsvolu("CM10", "BOX", idtmed[1123], tbox, 3);
429 gMC->Gspos("CM10", 1, "ALIC", -1250.-tbox[0], 4420.-tbox[1], -tbox[2]-555., 0, "MANY");
432 // Molasse betwen the PGC2 & PM25 on the left side.
433 tbox[0] = (2755. - 1250.)/2.;
434 tbox[1] = 2575. + 95.;
435 tbox[2] = (1900.+2987.7 - 555. + 650.)/2.;
436 gMC->Gsvolu("CM11", "BOX", idtmed[1123], tbox, 3);
437 gMC->Gspos("CM11", 1, "ALIC", -1250.-tbox[0], 4420.-tbox[1], 555.+tbox[2], 0, "MANY");
442 //_____________________________________________________________________________
443 void AliCRTv0::CreateShafts()
448 Int_t idrotm[2499]; // The rotation matrix.
450 Int_t * idtmed = fIdtmed->GetArray() - 1099 ;
459 gMC->Gsvolu("CHC1", "TUBS", idtmed[1116], ptubs, 5);
460 gMC->Gspos("CHC1", 1, "ALIC", 0., 500., 0., 0, "ONLY");
466 AliMatrix(idrotm[2001], 0., 0., 90., 0., 90., 90.);
472 ptubs[3] = kRaddeg*TMath::ASin(1070./ptubs[0]);
473 ptubs[4] = 360 - ptubs[3];
474 gMC->Gsvolu("CSF1", "TUBS", idtmed[1116], ptubs, 5);
475 gMC->Gspos("CSF1", 1, "ALIC", 0., 404., -2300., idrotm[2001], "MANY");
480 ptube[2] = 2575. - ptubs[2] + 95.;
481 gMC->Gsvolu("CSF2", "TUBE", idtmed[1116], ptube, 3);
482 gMC->Gspos("CSF2", 1, "ALIC", 0., 404.+ptubs[2]+ptube[2], -2300., idrotm[2001], "MANY");
484 // Concrete walls along the shaft
487 pbox[1] = 2575. + 95.;
489 gMC->Gsvolu("CSW1", "BOX", idtmed[1116], pbox, 3);
490 gMC->Gspos("CSW1", 1, "ALIC", -290-pbox[0], 404.-1300.+pbox[1], -3450.+210.*2, 0, "MANY");
494 pbox[1] = 2575. + 95.;
496 gMC->Gsvolu("CSW3", "BOX", idtmed[1116], pbox, 3);
497 gMC->Gspos("CSW3", 1, "ALIC", 420.-290.+pbox[0], 404.-1300.+pbox[1], -3450.+210.*2, 0, "MANY");
501 pbox[1] = 2575. + 95.;
503 gMC->Gsvolu("CSW2", "BOX", idtmed[1116], pbox, 3);
504 gMC->Gspos("CSW2", 1, "ALIC", -290-pbox[0], 404.-1300.+pbox[1], -3450.+pbox[2], 0, "MANY");
505 gMC->Gspos("CSW2", 2, "ALIC", 420.-290.+pbox[0], 404.-1300.+pbox[1], -3450.+pbox[2], 0, "MANY");
512 gMC->Gsvolu("CSP1", "BOX", idtmed[1116], pbox, 3);
513 gMC->Gspos("CSP1", 1, "ALIC", 0., 2600.-700., -1150-pbox[2], 0, "MANY");
519 gMC->Gsvolu("CSP2", "BOX", idtmed[1116], pbox, 3);
520 gMC->Gspos("CSP2", 1, "ALIC", 0., 2950.-700., -3450+pbox[2], 0, "MANY");
526 gMC->Gsvolu("CSP3", "BOX", idtmed[1116], pbox, 3);
527 gMC->Gspos("CSP3", 1, "ALIC", 0., 2950.-700., -1150.-210.-pbox[2], 0, "MANY");
533 gMC->Gsvolu("CSP4", "BOX", idtmed[1116], pbox, 3);
534 gMC->Gspos("CSP4", 1, "ALIC", 0., 2950.-700.+155.+pbox[1], -1150.-210.-pbox[2], 0, "MANY");
541 gMC->Gsvolu("CSP5", "BOX", idtmed[1116], pbox, 3);
542 gMC->Gspos("CSP5", 1, "ALIC", 0., 2950.-700., -3450.+460.+pbox[2], 0, "MANY");
548 gMC->Gsvolu("CSP6", "BOX", idtmed[1116], pbox, 3);
549 gMC->Gspos("CSP6", 1, "ALIC", 1150.-600., 2950.-700., -3450.+460.+pbox[2], 0, "MANY");
550 gMC->Gspos("CSP6", 2, "ALIC", -1150.+600., 2950.-700., -3450.+460.+pbox[2], 0, "MANY");
557 gMC->Gsvolu("CSP7", "BOX", idtmed[1116], pbox, 3);
558 gMC->Gspos("CSP7", 1, "ALIC", 850.+pbox[0], 2950.-700.+100., -3450.+460.+pbox[2], 0, "MANY");
559 gMC->Gspos("CSP7", 2, "ALIC", -850.-pbox[0], 2950.-700.+100., -3450.+460.+pbox[2], 0, "MANY");
564 ptube[1] = ptube[0] + 100.;
565 ptube[2] = (5150. - 1166.)/2.;
566 gMC->Gsvolu("CSF3", "TUBE", idtmed[1116], ptube, 3);
567 gMC->Gspos("CSF3", 1, "ALIC", -2100., AliCRTConstants::fgDepth-ptube[2], 0., idrotm[2001], "MANY");
571 ptube[1] = ptube[0] + 100.;
572 ptube[2] = (5150. - 690.)/2.;
573 gMC->Gsvolu("CSF4", "TUBE", idtmed[1116], ptube, 3);
574 gMC->Gspos("CSF4", 1, "ALIC", 375., AliCRTConstants::fgDepth-ptube[2], 1900.+2987.7, idrotm[2001], "MANY");
578 //_____________________________________________________________________________
580 void AliCRTv0::CreateMaterials()
582 // Use the standard materials.
583 AliCRT::CreateMaterials();
587 //_____________________________________________________________________________
588 void AliCRTv0::DrawDetector()
591 // Draw a shaded view of the L3 magnet
593 cout << "AliCRTv0::DrawModule() : Drawing the module" << endl;
595 gMC->Gsatt("*", "seen", -1);
596 gMC->Gsatt("alic", "seen", 0);
598 gMC->Gsatt("ALIC","seen",0);
599 gMC->Gsatt("L3MO","seen",1); // L3 Magnet
600 gMC->Gsatt("CRT1","seen",1); // Scintillators
602 // Draw the molasse volumes
603 gMC->Gsatt("CMO1","seen",0); // Exactly above the HALL
604 gMC->Gsatt("CMO2","seen",0); // Molasse, along the PM25
605 gMC->Gsatt("CMO3","seen",0); // molasse along the PGC2
606 gMC->Gsatt("CMO4","seen",0); // Molasse, behind the PX24 upper part
607 gMC->Gsatt("CMO5","seen",0); // molasse behind px24, lower part
608 gMC->Gsatt("CMO6","seen",0); // behind the PX24
609 gMC->Gsatt("CMO7","seen",0); // behind the PGC2
610 gMC->Gsatt("CMO8","seen",0); // on the right side.
611 gMC->Gsatt("CMO9","seen",0); // on the left side.
612 gMC->Gsatt("CM10","seen",0); // betwen PX24 & PM25.
613 gMC->Gsatt("CM11","seen",0); // betwen PGC2 & PM25.
614 gMC->Gsatt("CM12","seen",0); // box above the hall.
616 gMC->Gdopt("hide", "on");
617 gMC->Gdopt("edge","off");
618 gMC->Gdopt("shad", "on");
619 gMC->Gsatt("*", "fill", 7);
620 gMC->SetClipBox("ALIC", 0, 3000, -3000, 3000, -6000, 6000);
622 gMC->Gdraw("alic", 40, 30, 0, 10, 9.5, .009, .009);
623 gMC->Gdhead(1111, "View of CRT(ACORDE)");
624 gMC->Gdman(18, 4, "MAN");
629 //_____________________________________________________________________________
630 void AliCRTv0::Init()
633 // Initialise L3 magnet after it has been built
637 printf("\n%s: ",ClassName());
638 for(i=0;i<35;i++) printf("*");
639 printf(" CRTv0_INIT ");
640 for(i=0;i<35;i++) printf("*");
641 printf("\n%s: ",ClassName());
643 // Here the CRTv0 initialisation code (if any!)
644 for(i=0;i<80;i++) printf("*");
650 //_____________________________________________________________________________
651 void AliCRTv0::StepManager()
654 // Called for every step in the Cosmic Ray Trigger
662 static Float_t hits[14];
663 Int_t tracknumber = gAlice->CurrentTrack();
665 static Float_t eloss;
666 static Float_t tlength;
670 if ( !gMC->IsTrackAlive() ) return;
672 if (gMC->IsNewTrack()) {
673 // Reset the deposited energy
677 eloss += gMC->Edep(); // Store the energy loss along the trajectory.
678 tlength += gMC->TrackStep();
680 if (gMC->IsTrackEntering() && (strcmp(gMC->CurrentVolName(),"CM12") == 0) ) {
682 // Get current particle id (ipart), track position (pos) and momentum (mom)
683 gMC->TrackPosition(pos);
684 gMC->TrackMomentum(mom);
685 ipart = gMC->TrackPid();
687 Double_t tc = mom[0]*mom[0]+mom[1]*mom[1];
688 Double_t pt = TMath::Sqrt(tc);
689 theta = Float_t(TMath::ATan2(pt,Double_t(mom[2])))*kRaddeg;
690 phi = Float_t(TMath::ATan2(Double_t(mom[1]),Double_t(mom[0])))*kRaddeg;
693 vol[0] = gMC->CurrentVolOffID(1, vol[1]);
694 vol[2] = gMC->CurrentVolID(copy);
697 hits[0] = 0.f; // (fnmou)
698 hits[1] = (Float_t)ipart; // (fId)
700 hits[2] = pos[0]; // X coordinate (fX)
701 hits[3] = pos[1]; // Y coordinate (fY)
702 hits[4] = pos[2]; // Z coordinate (fZ)
703 hits[5] = mom[0]; // Px (fpxug)
704 hits[6] = mom[1]; // Py (fpyug)
705 hits[7] = mom[2]; // Pz (fpzug)
707 hits[8] = gMC->GetMedium();//layer(flay)
708 hits[9] = theta; // arrival angle
710 hits[11] = eloss; // Energy loss
711 hits[12] = tlength; // Trajectory lenght
712 hits[13] = (Float_t)tracknumber;
714 AddHit(gAlice->CurrentTrack(),vol, hits);