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 1.8 2002/10/14 14:55:34 hristov
19 Merging the VirtualMC branch to the main development branch (HEAD)
21 Revision 1.4.2.4 2002/10/10 14:40:31 hristov
22 Updating VirtualMC to v3-09-02
24 Revision 1.7 2002/10/07 11:13:25 gamez
27 Revision 1.6 2002/07/26 06:21:12 gamez
28 CRT3 volume taken as sensitive volume
30 Revision 1.5 2002/07/25 12:52:34 morsch
31 AddHit call only if hit has been defined.
33 Revision 1.4 2002/07/12 12:57:29 gamez
34 Division of CRT1 corrected
36 Revision 1.3.2.1 2002/07/12 12:32:50 gamez
37 Division of CRT1 corrected
39 Revision 1.3 2002/07/10 15:57:04 gamez
40 CreateHall() removed, and new Molasse volumes
42 Revision 1.2 2002/07/09 08:45:35 hristov
43 Old style include files needed on HP (aCC)
45 Revision 1.1 2002/06/16 17:08:19 hristov
51 ///////////////////////////////////////////////////////////////////////////////
53 // ALICE Cosmic Ray Trigger //
55 // This class contains the functions for version 0 of the ALICE Cosmic Ray //
56 // Trigger. This version will be used to simulation comic rays in alice //
57 // with all the detectors. //
61 // Arturo Fernandez <afernand@fcfm.buap.mx>
62 // Enrique Gamez <egamez@fcfm.buap.mx>
64 // Universidad Autonoma de Puebla
69 <img src="picts/AliCRTv0Class.gif">
72 <p>The responsible person for this module is
73 <a href="mailto:egamez@fcfm.buap.mx">Enrique Gamez</a>.
79 ///////////////////////////////////////////////////////////////////////////////
81 #include <Riostream.h>
83 #include <TGeometry.h>
86 #include <TLorentzVector.h>
95 #include "AliCRTConstants.h"
99 //_____________________________________________________________________________
100 AliCRTv0::AliCRTv0() : AliCRT()
103 // Default constructor for CRT v0
107 //_____________________________________________________________________________
108 AliCRTv0::AliCRTv0(const char *name, const char *title)
112 // Standard constructor for CRT v0
116 <img src="picts/AliCRTv0.gif">
121 //_____________________________________________________________________________
122 AliCRTv0::AliCRTv0(const AliCRTv0& crt)
130 //_____________________________________________________________________________
131 AliCRTv0& AliCRTv0::operator= (const AliCRTv0& crt)
134 // Asingment operator.
140 //_____________________________________________________________________________
141 void AliCRTv0::BuildGeometry()
144 // Create the ROOT TNode geometry for the CRT
149 const Int_t kColorCRT = kRed;
151 // Find the top node alice.
152 top = gAlice->GetGeometry()->GetNode("alice");
154 new TBRIK("S_CRT_A", "CRT box", "void",
155 AliCRTConstants::fgActiveAreaLenght/2.,
156 AliCRTConstants::fgActiveAreaHeight/2.,
157 AliCRTConstants::fgActiveAreaWidth/2.);
160 new TRotMatrix("Left", "Left", 90., 315., 90., 45., 0., 337.5);
161 new TRotMatrix("Right", "Right", 90., 45., 90., 315., 180., 202.5);
162 new TRotMatrix("Up", "Up", 90., 0., 90., 90., 0., 90.);
166 // Put 4 modules on the top of the magnet
167 Float_t box = AliCRTConstants::fgCageWidth/2.;
169 node = new TNode("upper1", "upper1", "S_CRT_A", 0., 790., 3.*box, "Up");
170 node->SetLineColor(kColorCRT);
174 node = new TNode("upper2", "upper2", "S_CRT_A", 0., 790., box, "Up");
175 node->SetLineColor(kColorCRT);
179 node = new TNode("upper3", "upper3", "S_CRT_A", 0., 790., -1.*box, "Up");
180 node->SetLineColor(kColorCRT);
184 node = new TNode("upper4", "upper4", "S_CRT_A", 0., 790., -3.*box, "Up");
185 node->SetLineColor(kColorCRT);
189 // Modules on the left side.
190 Float_t xtragap = 10.;
191 Float_t initXside = (790.+xtragap)*TMath::Sin(2*22.5*kDegrad); //rigth side
192 Float_t initYside = (790.+xtragap)*TMath::Cos(2*22.5*kDegrad);
194 node = new TNode("upper5", "upper5", "S_CRT_A", initXside, initYside, 3.*box, "Left");
195 node->SetLineColor(kColorCRT);
199 node = new TNode("upper6", "upper6", "S_CRT_A", initXside, initYside, box, "Left");
200 node->SetLineColor(kColorCRT);
204 node = new TNode("upper7", "upper7", "S_CRT_A", initXside, initYside, -1.*box, "Left");
205 node->SetLineColor(kColorCRT);
209 node = new TNode("upper8", "upper8", "S_CRT_A", initXside, initYside, -3.*box, "Left");
210 node->SetLineColor(kColorCRT);
214 // Modules on the right side.
216 node = new TNode("upper9", "upper9", "S_CRT_A", -initXside, initYside, 3.*box, "Right");
217 node->SetLineColor(kColorCRT);
221 node = new TNode("upper10", "upper10", "S_CRT_A", -initXside, initYside, box, "Right");
222 node->SetLineColor(kColorCRT);
226 node = new TNode("upper11","upper11", "S_CRT_A", -initXside, initYside, -1.*box, "Right");
227 node->SetLineColor(kColorCRT);
231 node = new TNode("upper12","upper12", "S_CRT_A", -initXside, initYside, -3.*box, "Right");
232 node->SetLineColor(kColorCRT);
238 //_____________________________________________________________________________
239 void AliCRTv0::CreateGeometry()
242 // Create geometry for the CRT array
244 Int_t idrotm[2499]; // The rotation matrix.
246 Int_t * idtmed = fIdtmed->GetArray() - 1099 ;
256 box[0] = AliCRTConstants::fgCageLenght/2.; // Half Length of the box along the X axis, cm.
257 box[1] = AliCRTConstants::fgCageHeight/2.; // Half Length of the box along the Y axis, cm.
258 box[2] = AliCRTConstants::fgCageWidth/2.; // Half Length of the box along the Z axis, cm.
261 // Define the Scintillators. as a big box.
263 scint[0] = AliCRTConstants::fgActiveAreaLenght/2.; // Half Length in X
264 scint[1] = AliCRTConstants::fgActiveAreaHeight/2.; // Half Length in Y
265 scint[2] = AliCRTConstants::fgActiveAreaWidth/2.; // Half Length in Z
266 gMC->Gsvolu("CRT1", "BOX ", idtmed[1112], scint, 3); // Scintillators
269 // Define the coordinates where the draw will begin.
274 // we'll start dawing from the center.
279 Float_t gapY = 30.; // 30 cms. above the barrel.
280 // For the height we staimate the from the center of the ceiling,
281 // if were a cilinder, must be about 280cm.
282 Float_t barrel = 790.; // Barrel radius.
283 Float_t height = barrel + gapY - 30.;
284 Float_t initY = height;
288 // we'll start dawing from the center.
291 // Put 4 modules on the top of the magnet
293 for ( Int_t i = 1 ; i <= 4 ; i++ ) {
294 gMC->Gspos("CRT1", i, "ALIC", initX, initY, (i-step)*box[2], 0, "ONLY");
298 // Modules on the barrel sides.
299 // Because the openenig angle for each face is 22.5, and if we want to
300 // put the modules right in the middle
301 Float_t xtragap = 10.;
302 Float_t initXside = (height+xtragap)*TMath::Sin(2*22.5*kDegrad); //rigth side
303 Float_t initYside = (height+xtragap)*TMath::Cos(2*22.5*kDegrad);
305 // Put 4 modules on the left side of the magnet
306 // The rotation matrix parameters, for the left side.
307 AliMatrix(idrotm[232], 90., 315., 90., 45., 0., 337.5);
309 for ( Int_t i = 1 ; i <= 4 ; i++ ) {
310 gMC->Gspos("CRT1", i+4, "ALIC", initXside, initYside, (i-stepl)*box[2],
311 idrotm[232], "ONLY");
315 // Put 4 modules on the right side of the magnet
316 // The rotation matrix parameters for the right side.
317 AliMatrix(idrotm[231], 90., 45., 90., 315., 180., 202.5);
319 for ( Int_t i = 1 ; i <= 4 ; i++ ) {
320 gMC->Gspos("CRT1", i+8, "ALIC", -initXside, initYside, (i-stepr)*box[2],
321 idrotm[231], "ONLY");
325 // Divide the modules in 2 planes.
326 //gMC->Gsdvn("CRT2", "CRT1", 2, 2);
327 // Now divide each plane in 8 palettes
328 //gMC->Gsdvn("CRT3", "CRT2", 8, 3);
332 //_____________________________________________________________________________
333 void AliCRTv0::CreateMolasse()
335 Int_t idrotm[2499]; // The rotation matrix.
337 Int_t * idtmed = fIdtmed->GetArray() - 1099 ;
343 // Exactly above the hall
346 tspar[1] = 1170. + 375.;
347 tspar[2] = (1900.+1150.)/2.+100.;
350 gMC->Gsvolu("CMO1", "TUBS", idtmed[1123], tspar, 5);
351 gMC->Gspos("CMO1", 1, "ALIC", 0., 500., 1900.-tspar[2]+400., 0, "MANY");
355 tbox[1] = (4420. - 1670.)/2.;
356 tbox[2] = (1900.+1150.)/2. + 200.;
357 gMC->Gsvolu("CM12", "BOX", idtmed[1123], tbox, 3);
358 gMC->Gspos("CM12", 1, "ALIC", 0., 4420. -tbox[1], 1900.-tbox[2]+400., 0, "MANY");
360 AliMatrix(idrotm[2003], 0., 0., 90., 0., 90., 90.);
363 tube[0] = 455. + 100.;
364 tube[1] = 555. + 375.;
365 tube[2] = (5150. - 1166.)/2.;
366 gMC->Gsvolu("CMO2", "TUBE", idtmed[1123], tube, 3);
367 gMC->Gspos("CMO2", 1, "ALIC", -2100., 4420.-tube[2], 0., idrotm[2003], "MANY");
373 tube[2] = (5150. - 690.)/2.;
374 gMC->Gsvolu("CMO3", "TUBE", idtmed[1123], tube, 3);
375 gMC->Gspos("CMO3", 1, "ALIC", 375., 4420.-tube[2], 1900.+2987.7, idrotm[2003], "MANY");
376 // Behind the PGC2 up to the end of the M. volume.
378 tbox[1] = 2575. + 95.;
379 tbox[2] = (12073. - 1900.-2987.7-650.)/2.;
380 gMC->Gsvolu("CMO7", "BOX", idtmed[1123], tbox, 3);
381 gMC->Gspos("CMO7", 1, "ALIC", 0., 4420.-tbox[1], 1900.+2987.7+650.+tbox[2], 0, "MANY");
383 // Along the PX24 , upper part.
386 tube[2] = 2575. - 1300. + 95.;
387 gMC->Gsvolu("CMO4", "TUBE", idtmed[1123], tube, 3);
388 gMC->Gspos("CMO4", 1, "ALIC", 0., 404.+1300.+tube[2], -2300., idrotm[2003], "MANY");
390 // Along the PX24 , lower part
394 tspar[3] = kRaddeg*TMath::ASin(1070./1150.);
395 tspar[4] = 360. - tspar[3];
396 gMC->Gsvolu("CMO5", "TUBS", idtmed[1123], tspar, 5);
397 gMC->Gspos("CMO5", 1, "ALIC", 0., 404., -2300., idrotm[2003], "MANY");
400 tbox[1] = 2575. + 95.;
402 gMC->Gsvolu("CMO6", "BOX", idtmed[1123], tbox, 3);
403 gMC->Gspos("CMO6", 1, "ALIC", 0., 4420.-tbox[1], -3550.-tbox[2], 0, "MANY");
406 // On the right side of th hall
407 tbox[0] = (12073. - 1250.)/2.;
408 tbox[1] = 2575. + 95.;
409 tbox[2] = (8437.7+650.)/2.;
410 gMC->Gsvolu("CMO8", "BOX", idtmed[1123], tbox, 3);
411 gMC->Gspos("CMO8", 1, "ALIC", 1250.+tbox[0], 4420.-tbox[1], -3550.+tbox[2], 0, "MANY");
413 // on the left side of the hall, behind
414 tbox[0] = (12073. - 2755.)/2.;
415 tbox[1] = 2575. + 95.;
416 tbox[2] = (8437.7+650.)/2.;
417 gMC->Gsvolu("CMO9", "BOX", idtmed[1123], tbox, 3);
418 gMC->Gspos("CMO9", 1, "ALIC", -2755.-tbox[0], 4420.-tbox[1], -3550.+tbox[2], 0, "MANY");
421 // Molasse betwen the PX24 & PM25 on the left side.
422 tbox[0] = (2755. - 1250.)/2.;
423 tbox[1] = 2575. + 95.;
424 tbox[2] = (3550. - 555.)/2.;
425 gMC->Gsvolu("CM10", "BOX", idtmed[1123], tbox, 3);
426 gMC->Gspos("CM10", 1, "ALIC", -1250.-tbox[0], 4420.-tbox[1], -tbox[2]-555., 0, "MANY");
429 // Molasse betwen the PGC2 & PM25 on the left side.
430 tbox[0] = (2755. - 1250.)/2.;
431 tbox[1] = 2575. + 95.;
432 tbox[2] = (1900.+2987.7 - 555. + 650.)/2.;
433 gMC->Gsvolu("CM11", "BOX", idtmed[1123], tbox, 3);
434 gMC->Gspos("CM11", 1, "ALIC", -1250.-tbox[0], 4420.-tbox[1], 555.+tbox[2], 0, "MANY");
439 //_____________________________________________________________________________
440 void AliCRTv0::CreateShafts()
445 Int_t idrotm[2499]; // The rotation matrix.
447 Int_t * idtmed = fIdtmed->GetArray() - 1099 ;
456 gMC->Gsvolu("CHC1", "TUBS", idtmed[1116], ptubs, 5);
457 gMC->Gspos("CHC1", 1, "ALIC", 0., 500., 0., 0, "ONLY");
463 AliMatrix(idrotm[2001], 0., 0., 90., 0., 90., 90.);
469 ptubs[3] = kRaddeg*TMath::ASin(1070./ptubs[0]);
470 ptubs[4] = 360 - ptubs[3];
471 gMC->Gsvolu("CSF1", "TUBS", idtmed[1116], ptubs, 5);
472 gMC->Gspos("CSF1", 1, "ALIC", 0., 404., -2300., idrotm[2001], "MANY");
477 ptube[2] = 2575. - ptubs[2] + 95.;
478 gMC->Gsvolu("CSF2", "TUBE", idtmed[1116], ptube, 3);
479 gMC->Gspos("CSF2", 1, "ALIC", 0., 404.+ptubs[2]+ptube[2], -2300., idrotm[2001], "MANY");
481 // Concrete walls along the shaft
484 pbox[1] = 2575. + 95.;
486 gMC->Gsvolu("CSW1", "BOX", idtmed[1116], pbox, 3);
487 gMC->Gspos("CSW1", 1, "ALIC", -290-pbox[0], 404.-1300.+pbox[1], -3450.+210.*2, 0, "MANY");
491 pbox[1] = 2575. + 95.;
493 gMC->Gsvolu("CSW3", "BOX", idtmed[1116], pbox, 3);
494 gMC->Gspos("CSW3", 1, "ALIC", 420.-290.+pbox[0], 404.-1300.+pbox[1], -3450.+210.*2, 0, "MANY");
498 pbox[1] = 2575. + 95.;
500 gMC->Gsvolu("CSW2", "BOX", idtmed[1116], pbox, 3);
501 gMC->Gspos("CSW2", 1, "ALIC", -290-pbox[0], 404.-1300.+pbox[1], -3450.+pbox[2], 0, "MANY");
502 gMC->Gspos("CSW2", 2, "ALIC", 420.-290.+pbox[0], 404.-1300.+pbox[1], -3450.+pbox[2], 0, "MANY");
509 gMC->Gsvolu("CSP1", "BOX", idtmed[1116], pbox, 3);
510 gMC->Gspos("CSP1", 1, "ALIC", 0., 2600.-700., -1150-pbox[2], 0, "MANY");
516 gMC->Gsvolu("CSP2", "BOX", idtmed[1116], pbox, 3);
517 gMC->Gspos("CSP2", 1, "ALIC", 0., 2950.-700., -3450+pbox[2], 0, "MANY");
523 gMC->Gsvolu("CSP3", "BOX", idtmed[1116], pbox, 3);
524 gMC->Gspos("CSP3", 1, "ALIC", 0., 2950.-700., -1150.-210.-pbox[2], 0, "MANY");
530 gMC->Gsvolu("CSP4", "BOX", idtmed[1116], pbox, 3);
531 gMC->Gspos("CSP4", 1, "ALIC", 0., 2950.-700.+155.+pbox[1], -1150.-210.-pbox[2], 0, "MANY");
538 gMC->Gsvolu("CSP5", "BOX", idtmed[1116], pbox, 3);
539 gMC->Gspos("CSP5", 1, "ALIC", 0., 2950.-700., -3450.+460.+pbox[2], 0, "MANY");
545 gMC->Gsvolu("CSP6", "BOX", idtmed[1116], pbox, 3);
546 gMC->Gspos("CSP6", 1, "ALIC", 1150.-600., 2950.-700., -3450.+460.+pbox[2], 0, "MANY");
547 gMC->Gspos("CSP6", 2, "ALIC", -1150.+600., 2950.-700., -3450.+460.+pbox[2], 0, "MANY");
554 gMC->Gsvolu("CSP7", "BOX", idtmed[1116], pbox, 3);
555 gMC->Gspos("CSP7", 1, "ALIC", 850.+pbox[0], 2950.-700.+100., -3450.+460.+pbox[2], 0, "MANY");
556 gMC->Gspos("CSP7", 2, "ALIC", -850.-pbox[0], 2950.-700.+100., -3450.+460.+pbox[2], 0, "MANY");
561 ptube[1] = ptube[0] + 100.;
562 ptube[2] = (5150. - 1166.)/2.;
563 gMC->Gsvolu("CSF3", "TUBE", idtmed[1116], ptube, 3);
564 gMC->Gspos("CSF3", 1, "ALIC", -2100., AliCRTConstants::fgDepth-ptube[2], 0., idrotm[2001], "MANY");
568 ptube[1] = ptube[0] + 100.;
569 ptube[2] = (5150. - 690.)/2.;
570 gMC->Gsvolu("CSF4", "TUBE", idtmed[1116], ptube, 3);
571 gMC->Gspos("CSF4", 1, "ALIC", 375., AliCRTConstants::fgDepth-ptube[2], 1900.+2987.7, idrotm[2001], "MANY");
575 //_____________________________________________________________________________
577 void AliCRTv0::CreateMaterials()
579 // Use the standard materials.
580 AliCRT::CreateMaterials();
584 //_____________________________________________________________________________
585 void AliCRTv0::DrawDetector()
588 // Draw a shaded view of the L3 magnet
590 cout << "AliCRTv0::DrawModule() : Drawing the module" << endl;
592 gMC->Gsatt("*", "seen", -1);
593 gMC->Gsatt("alic", "seen", 0);
595 gMC->Gsatt("ALIC","seen",0);
596 gMC->Gsatt("L3MO","seen",1); // L3 Magnet
597 gMC->Gsatt("CRT1","seen",1); // Scintillators
599 // Draw the molasse volumes
600 gMC->Gsatt("CMO1","seen",0); // Exactly above the HALL
601 gMC->Gsatt("CMO2","seen",0); // Molasse, along the PM25
602 gMC->Gsatt("CMO3","seen",0); // molasse along the PGC2
603 gMC->Gsatt("CMO4","seen",0); // Molasse, behind the PX24 upper part
604 gMC->Gsatt("CMO5","seen",0); // molasse behind px24, lower part
605 gMC->Gsatt("CMO6","seen",0); // behind the PX24
606 gMC->Gsatt("CMO7","seen",0); // behind the PGC2
607 gMC->Gsatt("CMO8","seen",0); // on the right side.
608 gMC->Gsatt("CMO9","seen",0); // on the left side.
609 gMC->Gsatt("CM10","seen",0); // betwen PX24 & PM25.
610 gMC->Gsatt("CM11","seen",0); // betwen PGC2 & PM25.
611 gMC->Gsatt("CM12","seen",0); // box above the hall.
613 gMC->Gdopt("hide", "on");
614 gMC->Gdopt("edge","off");
615 gMC->Gdopt("shad", "on");
616 gMC->Gsatt("*", "fill", 7);
617 gMC->SetClipBox("ALIC", 0, 3000, -3000, 3000, -6000, 6000);
619 gMC->Gdraw("alic", 40, 30, 0, 10, 9.5, .009, .009);
620 gMC->Gdhead(1111, "View of CRT(ACORDE)");
621 gMC->Gdman(18, 4, "MAN");
626 //_____________________________________________________________________________
627 void AliCRTv0::Init()
630 // Initialise L3 magnet after it has been built
634 printf("\n%s: ",ClassName());
635 for(i=0;i<35;i++) printf("*");
636 printf(" CRTv0_INIT ");
637 for(i=0;i<35;i++) printf("*");
638 printf("\n%s: ",ClassName());
640 // Here the CRTv0 initialisation code (if any!)
641 for(i=0;i<80;i++) printf("*");
647 //_____________________________________________________________________________
648 void AliCRTv0::StepManager()
651 // Called for every step in the Cosmic Ray Trigger
659 static Float_t hits[13];
660 Int_t tracknumber = gAlice->CurrentTrack();
662 static Float_t eloss;
663 static Float_t tlength;
667 if ( !gMC->IsTrackAlive() ) return;
669 if (gMC->IsNewTrack()) {
670 // Reset the deposited energy
674 eloss += gMC->Edep(); // Store the energy loss along the trajectory.
675 tlength += gMC->TrackStep();
677 if (gMC->IsTrackEntering() && (strcmp(gMC->CurrentVolName(),"CM12") == 0) ) {
679 // Get current particle id (ipart), track position (pos) and momentum (mom)
680 gMC->TrackPosition(pos);
681 gMC->TrackMomentum(mom);
682 ipart = gMC->TrackPid();
684 Double_t tc = mom[0]*mom[0]+mom[1]*mom[1];
685 Double_t pt = TMath::Sqrt(tc);
686 theta = Float_t(TMath::ATan2(pt,Double_t(mom[2])))*kRaddeg;
687 phi = Float_t(TMath::ATan2(Double_t(mom[1]),Double_t(mom[0])))*kRaddeg;
690 vol[0] = gMC->CurrentVolOffID(1, vol[1]);
691 vol[2] = gMC->CurrentVolID(copy);
694 hits[0] = 0.f; // (fnmou)
695 hits[1] = (Float_t)ipart; // (fId)
697 hits[2] = pos[0]; // X coordinate (fX)
698 hits[3] = pos[1]; // Y coordinate (fY)
699 hits[4] = pos[2]; // Z coordinate (fZ)
700 hits[5] = mom[0]; // Px (fpxug)
701 hits[6] = mom[1]; // Py (fpyug)
702 hits[7] = mom[2]; // Pz (fpzug)
704 hits[8] = gMC->GetMedium();//layer(flay)
705 hits[9] = theta; // arrival angle
707 hits[11] = eloss; // Energy loss
708 hits[12] = tlength; // Trajectory lenght
709 hits[13] = (Float_t)tracknumber;
711 AddHit(gAlice->CurrentTrack(),vol, hits);