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 1.28 2002/10/14 14:57:44 hristov
19 Merging the VirtualMC branch to the main development branch (HEAD)
21 Revision 1.27.8.1 2002/06/10 15:29:36 hristov
24 Revision 1.27 2001/09/26 16:06:59 coppedis
25 Some function moved to AliZDC
27 Revision 1.26 2001/06/13 11:10:55 coppedis
30 Revision 1.25 2001/06/12 13:45:05 coppedis
31 TDI in correct position and minor correction
33 Revision 1.24 2001/05/16 14:57:28 alibrary
34 New files for folders and Stack
36 Revision 1.23 2001/05/14 09:51:50 coppedis
37 Change in AddHit suggested by J. Chudoba
39 Revision 1.22 2001/05/05 13:33:19 coppedis
40 Changes in StepManager to speed simulation
42 Revision 1.21 2001/05/02 11:54:34 enrico
45 Revision 1.20 2001/05/02 10:33:11 coppedis
46 Modify tmaxfd in media definition
48 Revision 1.19 2001/04/27 08:35:01 coppedis
49 Remove some lines for proton acceptance studies
51 Revision 1.18 2001/04/20 10:08:45 coppedis
52 Preliminary version of optics 6.2 - Insertion of TDI
54 Revision 1.17 2001/03/16 16:18:10 coppedis
55 Correction for superposition of ZDC volumes with MUON arm one
57 Revision 1.16 2001/03/15 16:12:04 coppedis
60 Revision 1.15 2001/03/12 17:47:56 hristov
61 Changes needed on Sun with CC 5.0
63 Revision 1.14 2001/02/23 16:48:28 coppedis
64 Correct bug in ZEM hit definition
66 Revision 1.13 2001/02/07 18:07:41 coppedis
69 Revision 1.12 2001/01/26 19:56:27 hristov
70 Major upgrade of AliRoot code
72 Revision 1.11 2001/01/16 07:43:33 hristov
73 Initialisation of ZDC hits
75 Revision 1.10 2000/12/14 15:20:02 coppedis
76 Hits2Digits method for digitization
78 Revision 1.9 2000/12/13 10:33:49 coppedis
79 Prints only if fDebug==1
81 Revision 1.8 2000/12/12 14:10:02 coppedis
82 Correction suggested by M. Masera
84 Revision 1.7 2000/11/30 17:23:47 coppedis
85 Remove first corrector dipole and introduce digitization
87 Revision 1.6 2000/11/22 11:33:10 coppedis
90 Revision 1.5 2000/10/02 21:28:20 fca
91 Removal of useless dependecies via forward declarations
93 Revision 1.3.2.1 2000/08/24 09:25:47 hristov
94 Patch by P.Hristov: Bug in ZDC geometry corrected by E.Scomparin
96 Revision 1.4 2000/08/24 09:23:59 hristov
97 Bug in ZDC geometry corrected by E.Scomparin
99 Revision 1.3 2000/07/12 06:59:16 fca
100 Fixing dimension of hits array
102 Revision 1.2 2000/07/11 11:12:34 fca
103 Some syntax corrections for non standard HP aCC
105 Revision 1.1 2000/07/10 13:58:01 fca
106 New version of ZDC from E.Scomparin & C.Oppedisano
108 Revision 1.7 2000/01/19 17:17:40 fca
110 Revision 1.6 1999/09/29 09:24:35 fca
111 Introduction of the Copyright and cvs Log
115 ///////////////////////////////////////////////////////////////////////////////
117 // AliZDCv1 --- ZDC geometry as designed in TDR (obsolete!) //
118 // with the EM ZDC at 116 m from IP //
119 // Just one set of ZDC is inserted, on the same side of the dimuon arm //
121 ///////////////////////////////////////////////////////////////////////////////
123 // --- Standard libraries
135 // --- AliRoot classes
136 #include "AliZDCv1.h"
137 #include "AliZDCHit.h"
139 #include "AliDetector.h"
141 #include "AliConst.h"
143 #include "TLorentzVector.h"
148 //_____________________________________________________________________________
149 AliZDCv1::AliZDCv1() : AliZDC()
152 // Default constructor for Zero Degree Calorimeter
165 //_____________________________________________________________________________
166 AliZDCv1::AliZDCv1(const char *name, const char *title)
170 // Standard constructor for Zero Degree Calorimeter
173 // Check that DIPO, ABSO, DIPO and SHIL is there (otherwise tracking is wrong!!!)
175 AliModule *PIPE=gAlice->GetModule("PIPE");
176 AliModule *ABSO=gAlice->GetModule("ABSO");
177 AliModule *DIPO=gAlice->GetModule("DIPO");
178 AliModule *SHIL=gAlice->GetModule("SHIL");
179 if((!PIPE) || (!ABSO) || (!DIPO) || (!SHIL)) {
180 Error("Constructor","ZDC needs PIPE, ABSO, DIPO and SHIL!!!\n");
194 // Parameters for light tables
195 fNalfan = 90; // Number of Alfa (neutrons)
196 fNalfap = 90; // Number of Alfa (protons)
197 fNben = 18; // Number of beta (neutrons)
198 fNbep = 28; // Number of beta (protons)
200 for(ip=0; ip<4; ip++){
201 for(kp=0; kp<fNalfap; kp++){
202 for(jp=0; jp<fNbep; jp++){
203 fTablep[ip][kp][jp] = 0;
208 for(in=0; in<4; in++){
209 for(kn=0; kn<fNalfan; kn++){
210 for(jn=0; jn<fNben; jn++){
211 fTablen[in][kn][jn] = 0;
216 // Parameters for hadronic calorimeters geometry
233 // Parameters for EM calorimeter geometry
240 //_____________________________________________________________________________
241 void AliZDCv1::CreateGeometry()
244 // Create the geometry for the Zero Degree Calorimeter version 1
245 //* Initialize COMMON block ZDC_CGEOM
252 //_____________________________________________________________________________
253 void AliZDCv1::CreateBeamLine()
256 Float_t zq, zd1, zd2;
257 Float_t conpar[9], tubpar[3], tubspar[5], boxpar[3];
260 Int_t *idtmed = fIdtmed->GetArray();
262 // -- Mother of the ZDCs (Vacuum PCON)
273 gMC->Gsvolu("ZDC ", "PCON", idtmed[11], conpar, 9);
274 gMC->Gspos("ZDC ", 1, "ALIC", 0., 0., 0., 0, "ONLY");
276 // -- FIRST SECTION OF THE BEAM PIPE (from compensator dipole to
277 // the beginning of D1)
283 tubpar[2] = 3838.3/2.;
284 gMC->Gsvolu("QT01", "TUBE", idtmed[7], tubpar, 3);
285 gMC->Gspos("QT01", 1, "ZDC ", 0., 0., tubpar[2] + zd1, 0, "ONLY");
287 //-- SECOND SECTION OF THE BEAM PIPE (from the end of D1 to the
290 //-- FROM MAGNETIC BEGINNING OF D1 TO MAGNETIC END OF D1 + 13.5 cm
291 //-- Cylindrical pipe (r = 3.47) + conical flare
293 // -> Beginning of D1
297 tubpar[1] = 3.47+0.2;
298 tubpar[2] = 958.5/2.;
299 gMC->Gsvolu("QT02", "TUBE", idtmed[7], tubpar, 3);
300 gMC->Gspos("QT02", 1, "ZDC ", 0., 0., tubpar[2] + zd1, 0, "ONLY");
309 gMC->Gsvolu("QC01", "CONE", idtmed[7], conpar, 5);
310 gMC->Gspos("QC01", 1, "ZDC ", 0., 0., conpar[0] + zd1, 0, "ONLY");
317 gMC->Gsvolu("QT03", "TUBE", idtmed[7], tubpar, 3);
318 gMC->Gspos("QT03", 1, "ZDC ", 0., 0., tubpar[2] + zd1, 0, "ONLY");
325 gMC->Gsvolu("QT04", "TUBE", idtmed[7], tubpar, 3);
326 gMC->Gspos("QT04", 1, "ZDC ", 0., 0., tubpar[2] + zd1, 0, "ONLY");
328 zd1 += tubpar[2] * 2.;
333 gMC->Gsvolu("QT05", "TUBE", idtmed[7], tubpar, 3);
334 gMC->Gspos("QT05", 1, "ZDC ", 0., 0., tubpar[0] + zd1, 0, "ONLY");
336 zd1 += tubpar[2] * 2.;
341 gMC->Gsvolu("QT06", "TUBE", idtmed[7], tubpar, 3);
342 gMC->Gspos("QT06", 1, "ZDC ", 0., 0., tubpar[2] + zd1, 0, "ONLY");
344 zd1 += tubpar[2] * 2.;
351 gMC->Gsvolu("QC02", "CONE", idtmed[7], conpar, 5);
352 gMC->Gspos("QC02", 1, "ZDC ", 0., 0., conpar[0] + zd1, 0, "ONLY");
354 zd1 += conpar[0] * 2.;
359 gMC->Gsvolu("QT07", "TUBE", idtmed[7], tubpar, 3);
360 gMC->Gspos("QT07", 1, "ZDC ", 0., 0., tubpar[2] + zd1, 0, "ONLY");
362 zd1 += tubpar[2] * 2.;
369 gMC->Gsvolu("QC03", "CONE", idtmed[7], conpar, 5);
370 gMC->Gspos("QC03", 1, "ZDC ", 0., 0., conpar[0] + zd1, 0, "ONLY");
372 zd1 += conpar[0] * 2.;
376 tubpar[2] = 205.8/2.;
377 gMC->Gsvolu("QT08", "TUBE", idtmed[7], tubpar, 3);
378 gMC->Gspos("QT08", 1, "ZDC ", 0., 0., tubpar[2] + zd1, 0, "ONLY");
380 zd1 += tubpar[2] * 2.;
384 // QT09 is 10 cm longer to accomodate TDI
385 tubpar[2] = 515.4/2.;
386 gMC->Gsvolu("QT09", "TUBE", idtmed[7], tubpar, 3);
387 gMC->Gspos("QT09", 1, "ZDC ", 0., 0., tubpar[2] + zd1, 0, "ONLY");
389 // --- Insert TDI (inside ZDC volume)
394 gMC->Gsvolu("QTD1", "BOX ", idtmed[7], boxpar, 3);
395 gMC->Gspos("QTD1", 1, "ZDC ", 3., 10.6, tubpar[2] + zd1 + 56.3, 0, "ONLY");
396 gMC->Gspos("QTD1", 2, "ZDC ", 3., -10.6, tubpar[2] + zd1 + 56.3, 0, "ONLY");
401 gMC->Gsvolu("QTD2", "BOX ", idtmed[6], boxpar, 3);
402 gMC->Gspos("QTD2", 1, "ZDC ", 8.6+boxpar[0], 0., tubpar[2] + zd1 + 56.3, 0, "ONLY");
404 // tubspar[0] = 6.2; // R = 6.2 cm----------------------------------------
406 // tubspar[2] = 400./2.;
407 // tubspar[3] = 180.-62.5;
408 // tubspar[4] = 180.+62.5;
409 tubspar[0] = 10.5; // R = 10.5 cm------------------------------------------
411 tubspar[2] = 400./2.;
412 tubspar[3] = 180.-75.5;
413 tubspar[4] = 180.+75.5;
414 gMC->Gsvolu("QTD3", "TUBS", idtmed[6], tubspar, 5);
415 gMC->Gspos("QTD3", 1, "ZDC ", 0., 0., tubpar[2] + zd1 + 56.3, 0, "ONLY");
417 zd1 += tubpar[2] * 2.;
421 // QT10 is 10 cm shorter
423 gMC->Gsvolu("QT10", "TUBE", idtmed[7], tubpar, 3);
424 gMC->Gspos("QT10", 1, "ZDC ", 0., 0., tubpar[2] + zd1, 0, "ONLY");
426 zd1 += tubpar[2] * 2.;
430 tubpar[2] = 778.5/2.;
431 gMC->Gsvolu("QT11", "TUBE", idtmed[7], tubpar, 3);
432 gMC->Gspos("QT11", 1, "ZDC ", 0., 0., tubpar[2] + zd1, 0, "ONLY");
434 zd1 += tubpar[2] * 2.;
436 conpar[0] = 14.18/2.;
441 gMC->Gsvolu("QC04", "CONE", idtmed[7], conpar, 5);
442 gMC->Gspos("QC04", 1, "ZDC ", 0., 0., conpar[0] + zd1, 0, "ONLY");
444 zd1 += conpar[0] * 2.;
449 gMC->Gsvolu("QT12", "TUBE", idtmed[7], tubpar, 3);
450 gMC->Gspos("QT12", 1, "ZDC ", 0., 0., tubpar[2] + zd1, 0, "ONLY");
452 zd1 += tubpar[2] * 2.;
454 conpar[0] = 36.86/2.;
459 gMC->Gsvolu("QC05", "CONE", idtmed[7], conpar, 5);
460 gMC->Gspos("QC05", 1, "ZDC ", 0., 0., conpar[0] + zd1, 0, "ONLY");
462 zd1 += conpar[0] * 2.;
466 tubpar[2] = 927.3/2.;
467 gMC->Gsvolu("QT13", "TUBE", idtmed[7], tubpar, 3);
468 gMC->Gspos("QT13", 1, "ZDC ", 0., 0., tubpar[2] + zd1, 0, "ONLY");
470 zd1 += tubpar[2] * 2.;
475 gMC->Gsvolu("QT14", "TUBE", idtmed[8], tubpar, 3);
476 gMC->Gspos("QT14", 1, "ZDC ", 0., 0., tubpar[2] + zd1, 0, "ONLY");
478 zd1 += tubpar[2] * 2.;
483 gMC->Gsvolu("QT15", "TUBE", idtmed[11], tubpar, 3);
485 //-- Position QT15 inside QT14
486 gMC->Gspos("QT15", 1, "QT14", -7.7, 0., 0., 0, "ONLY");
491 gMC->Gsvolu("QT16", "TUBE", idtmed[11], tubpar, 3);
493 //-- Position QT16 inside QT14
494 gMC->Gspos("QT16", 1, "QT14", 7.7, 0., 0., 0, "ONLY");
497 //-- BEAM PIPE BETWEEN END OF CONICAL PIPE AND BEGINNING OF D2
501 tubpar[2] = 680.8/2.;
502 gMC->Gsvolu("QT17", "TUBE", idtmed[7], tubpar, 3);
506 tubpar[2] = 680.8/2.;
507 gMC->Gsvolu("QT18", "TUBE", idtmed[7], tubpar, 3);
511 Float_t angle = 0.143*kDegrad;
513 AliMatrix(im1, 90.-0.143, 0., 90., 90., 0.143, 180.);
514 gMC->Gspos("QT17", 1, "ZDC ", TMath::Sin(angle) * 680.8/ 2. - 9.4,
515 0., tubpar[2] + zd1, im1, "ONLY");
517 AliMatrix(im2, 90.+0.143, 0., 90., 90., 0.143, 0.);
518 gMC->Gspos("QT18", 1, "ZDC ", 9.7 - TMath::Sin(angle) * 680.8 / 2.,
519 0., tubpar[2] + zd1, im2, "ONLY");
522 // -- END OF BEAM PIPE VOLUME DEFINITION.
523 // ----------------------------------------------------------------
525 // -- MAGNET DEFINITION -> LHC OPTICS 6.2 (preliminary version)
527 // ----------------------------------------------------------------
528 // Replaced by the muon dipole
529 // ----------------------------------------------------------------
530 // -- COMPENSATOR DIPOLE (MBXW)
531 // GAP (VACUUM WITH MAGNETIC FIELD)
535 // tubpar[2] = 340./2.;
536 // gMC->Gsvolu("MBXW", "TUBE", idtmed[11], tubpar, 3);
537 // gMC->Gspos("MBXW", 1, "ZDC ", 0., 0., tubpar[2] + 805., 0, "ONLY");
539 // -- YOKE (IRON WITHOUT MAGNETIC FIELD)
543 // tubpar[2] = 340./2.;
544 // gMC->Gsvolu("YMBX", "TUBE", idtmed[7], tubpar, 3);
545 // gMC->Gspos("YMBX", 1, "ZDC ", 0., 0., tubpar[2] + 805., 0, "ONLY");
547 // ----------------------------------------------------------------
548 // Replaced by the second dipole
549 // ----------------------------------------------------------------
550 // -- COMPENSATOR DIPOLE (MCBWA)
551 // GAP (VACUUM WITH MAGNETIC FIELD)
555 // tubpar[2] = 170./2.;
556 // gMC->Gsvolu("MCBW", "TUBE", idtmed[11], tubpar, 3);
557 // gMC->Gspos("MCBW", 1, "ZDC ", 0., 0., tubpar[2] + 1921.6, 0, "ONLY");
559 // -- YOKE (IRON WITHOUT MAGNETIC FIELD)
563 // tubpar[2] = 170./2.;
564 // gMC->Gsvolu("YMCB", "TUBE", idtmed[7], tubpar, 3);
565 // gMC->Gspos("YMCB", 1, "ZDC ", 0., 0., tubpar[2] + 1921.6, 0, "ONLY");
571 // -- DEFINE MQXL AND MQX QUADRUPOLE ELEMENT
574 // -- GAP (VACUUM WITH MAGNETIC FIELD)
579 gMC->Gsvolu("MQXL", "TUBE", idtmed[11], tubpar, 3);
586 gMC->Gsvolu("YMQL", "TUBE", idtmed[7], tubpar, 3);
588 gMC->Gspos("MQXL", 1, "ZDC ", 0., 0., tubpar[2] + zq, 0, "ONLY");
589 gMC->Gspos("YMQL", 1, "ZDC ", 0., 0., tubpar[2] + zq, 0, "ONLY");
591 gMC->Gspos("MQXL", 2, "ZDC ", 0., 0., tubpar[2] + zq + 2430., 0, "ONLY");
592 gMC->Gspos("YMQL", 2, "ZDC ", 0., 0., tubpar[2] + zq + 2430., 0, "ONLY");
595 // -- GAP (VACUUM WITH MAGNETIC FIELD)
600 gMC->Gsvolu("MQX ", "TUBE", idtmed[11], tubpar, 3);
607 gMC->Gsvolu("YMQ ", "TUBE", idtmed[7], tubpar, 3);
609 gMC->Gspos("MQX ", 1, "ZDC ", 0., 0., tubpar[2] + zq + 883.5, 0, "ONLY");
610 gMC->Gspos("YMQ ", 1, "ZDC ", 0., 0., tubpar[2] + zq + 883.5, 0, "ONLY");
612 gMC->Gspos("MQX ", 2, "ZDC ", 0., 0., tubpar[2] + zq + 1533.5, 0, "ONLY");
613 gMC->Gspos("YMQ ", 2, "ZDC ", 0., 0., tubpar[2] + zq + 1533.5, 0, "ONLY");
615 // -- SEPARATOR DIPOLE D1
619 // -- GAP (VACUUM WITH MAGNETIC FIELD)
624 gMC->Gsvolu("MD1 ", "TUBE", idtmed[11], tubpar, 3);
626 // -- Insert horizontal Cu plates inside D1
627 // -- (to simulate the vacuum chamber)
629 boxpar[0] = TMath::Sqrt(tubpar[1]*tubpar[1]-(2.98+0.2)*(2.98+0.2));
632 gMC->Gsvolu("MD1V", "BOX ", idtmed[6], boxpar, 3);
633 gMC->Gspos("MD1V", 1, "MD1 ", 0., 2.98+boxpar[1], 0., 0, "ONLY");
634 gMC->Gspos("MD1V", 2, "MD1 ", 0., -2.98-boxpar[1], 0., 0, "ONLY");
641 gMC->Gsvolu("YD1 ", "TUBE", idtmed[7], tubpar, 3);
643 gMC->Gspos("YD1 ", 1, "ZDC ", 0., 0., tubpar[2] + zd1, 0, "ONLY");
644 gMC->Gspos("MD1 ", 1, "YD1 ", 0., 0., 0., 0, "ONLY");
650 // -- GAP (VACUUM WITH MAGNETIC FIELD)
655 gMC->Gsvolu("MD2 ", "TUBE", idtmed[11], tubpar, 3);
662 gMC->Gsvolu("YD2 ", "TUBE", idtmed[7], tubpar, 3);
664 gMC->Gspos("YD2 ", 1, "ZDC ", 0., 0., tubpar[2] + zd2, 0, "ONLY");
666 gMC->Gspos("MD2 ", 1, "YD2 ", -9.4, 0., 0., 0, "ONLY");
667 gMC->Gspos("MD2 ", 2, "YD2 ", 9.4, 0., 0., 0, "ONLY");
669 // -- END OF MAGNET DEFINITION
672 //_____________________________________________________________________________
673 void AliZDCv1::CreateZDC()
676 Float_t DimPb[6], DimVoid[6];
678 Int_t *idtmed = fIdtmed->GetArray();
680 // Parameters for hadronic calorimeters geometry
681 // NB -> parameters used ONLY in CreateZDC()
682 Float_t fDimZN[3] = {3.52, 3.52, 50.}; // Dimensions of neutron detector
683 Float_t fGrvZN[3] = {0.03, 0.03, 50.}; // Grooves for neutron detector
684 Float_t fGrvZP[3] = {0.04, 0.04, 75.}; // Grooves for proton detector
685 Int_t fDivZN[3] = {11, 11, 0}; // Division for neutron detector
686 Int_t fDivZP[3] = {7, 15, 0}; // Division for proton detector
687 Int_t fTowZN[2] = {2, 2}; // Tower for neutron detector
688 Int_t fTowZP[2] = {4, 1}; // Tower for proton detector
690 // Parameters for EM calorimeter geometry
691 // NB -> parameters used ONLY in CreateZDC()
692 Float_t fDimZEMPb = 0.15*(TMath::Sqrt(2.)); // z-dimension of the Pb slice
693 Float_t fDimZEMAir = 0.001; // scotch
694 Float_t fFibRadZEM = 0.0315; // External fiber radius (including cladding)
695 Int_t fDivZEM[3] = {92, 0, 20}; // Divisions for EM detector
696 Float_t fDimZEM0 = 2*fDivZEM[2]*(fDimZEMPb+fDimZEMAir+fFibRadZEM*(TMath::Sqrt(2.)));
697 Float_t fDimZEM[6] = {fDimZEM0, 3.5, 3.5, 45., 0., 0.}; // Dimensions of EM detector
698 Float_t fFibZEM2 = fDimZEM[2]/TMath::Sin(fDimZEM[3]*kDegrad)-fFibRadZEM;
699 Float_t fFibZEM[3] = {0., 0.0275, fFibZEM2}; // Fibers for EM calorimeter
702 //-- Create calorimeters geometry
704 // -------------------------------------------------------------------------------
705 //--> Neutron calorimeter (ZN)
707 gMC->Gsvolu("ZNEU", "BOX ", idtmed[1], fDimZN, 3); // Passive material
708 gMC->Gsvolu("ZNF1", "TUBE", idtmed[3], fFibZN, 3); // Active material
709 gMC->Gsvolu("ZNF2", "TUBE", idtmed[4], fFibZN, 3);
710 gMC->Gsvolu("ZNF3", "TUBE", idtmed[4], fFibZN, 3);
711 gMC->Gsvolu("ZNF4", "TUBE", idtmed[3], fFibZN, 3);
712 gMC->Gsvolu("ZNG1", "BOX ", idtmed[12], fGrvZN, 3); // Empty grooves
713 gMC->Gsvolu("ZNG2", "BOX ", idtmed[12], fGrvZN, 3);
714 gMC->Gsvolu("ZNG3", "BOX ", idtmed[12], fGrvZN, 3);
715 gMC->Gsvolu("ZNG4", "BOX ", idtmed[12], fGrvZN, 3);
717 // Divide ZNEU in towers (for hits purposes)
719 gMC->Gsdvn("ZNTX", "ZNEU", fTowZN[0], 1); // x-tower
720 gMC->Gsdvn("ZN1 ", "ZNTX", fTowZN[1], 2); // y-tower
722 //-- Divide ZN1 in minitowers
723 // fDivZN[0]= NUMBER OF FIBERS PER TOWER ALONG X-AXIS,
724 // fDivZN[1]= NUMBER OF FIBERS PER TOWER ALONG Y-AXIS
725 // (4 fibres per minitower)
727 gMC->Gsdvn("ZNSL", "ZN1 ", fDivZN[1], 2); // Slices
728 gMC->Gsdvn("ZNST", "ZNSL", fDivZN[0], 1); // Sticks
730 // --- Position the empty grooves in the sticks (4 grooves per stick)
731 Float_t dx = fDimZN[0] / fDivZN[0] / 4.;
732 Float_t dy = fDimZN[1] / fDivZN[1] / 4.;
734 gMC->Gspos("ZNG1", 1, "ZNST", 0.-dx, 0.+dy, 0., 0, "ONLY");
735 gMC->Gspos("ZNG2", 1, "ZNST", 0.+dx, 0.+dy, 0., 0, "ONLY");
736 gMC->Gspos("ZNG3", 1, "ZNST", 0.-dx, 0.-dy, 0., 0, "ONLY");
737 gMC->Gspos("ZNG4", 1, "ZNST", 0.+dx, 0.-dy, 0., 0, "ONLY");
739 // --- Position the fibers in the grooves
740 gMC->Gspos("ZNF1", 1, "ZNG1", 0., 0., 0., 0, "ONLY");
741 gMC->Gspos("ZNF2", 1, "ZNG2", 0., 0., 0., 0, "ONLY");
742 gMC->Gspos("ZNF3", 1, "ZNG3", 0., 0., 0., 0, "ONLY");
743 gMC->Gspos("ZNF4", 1, "ZNG4", 0., 0., 0., 0, "ONLY");
745 // --- Position the neutron calorimeter in ZDC
746 gMC->Gspos("ZNEU", 1, "ZDC ", fPosZN[0], fPosZN[1], fPosZN[2] + fDimZN[2], 0, "ONLY");
749 // -------------------------------------------------------------------------------
750 //--> Proton calorimeter (ZP)
752 gMC->Gsvolu("ZPRO", "BOX ", idtmed[2], fDimZP, 3); // Passive material
753 gMC->Gsvolu("ZPF1", "TUBE", idtmed[3], fFibZP, 3); // Active material
754 gMC->Gsvolu("ZPF2", "TUBE", idtmed[4], fFibZP, 3);
755 gMC->Gsvolu("ZPF3", "TUBE", idtmed[4], fFibZP, 3);
756 gMC->Gsvolu("ZPF4", "TUBE", idtmed[3], fFibZP, 3);
757 gMC->Gsvolu("ZPG1", "BOX ", idtmed[12], fGrvZP, 3); // Empty grooves
758 gMC->Gsvolu("ZPG2", "BOX ", idtmed[12], fGrvZP, 3);
759 gMC->Gsvolu("ZPG3", "BOX ", idtmed[12], fGrvZP, 3);
760 gMC->Gsvolu("ZPG4", "BOX ", idtmed[12], fGrvZP, 3);
762 //-- Divide ZPRO in towers(for hits purposes)
764 gMC->Gsdvn("ZPTX", "ZPRO", fTowZP[0], 1); // x-tower
765 gMC->Gsdvn("ZP1 ", "ZPTX", fTowZP[1], 2); // y-tower
768 //-- Divide ZP1 in minitowers
769 // fDivZP[0]= NUMBER OF FIBERS ALONG X-AXIS PER MINITOWER,
770 // fDivZP[1]= NUMBER OF FIBERS ALONG Y-AXIS PER MINITOWER
771 // (4 fiber per minitower)
773 gMC->Gsdvn("ZPSL", "ZP1 ", fDivZP[1], 2); // Slices
774 gMC->Gsdvn("ZPST", "ZPSL", fDivZP[0], 1); // Sticks
776 // --- Position the empty grooves in the sticks (4 grooves per stick)
777 dx = fDimZP[0] / fTowZP[0] / fDivZP[0] / 2.;
778 dy = fDimZP[1] / fTowZP[1] / fDivZP[1] / 2.;
780 gMC->Gspos("ZPG1", 1, "ZPST", 0.-dx, 0.+dy, 0., 0, "ONLY");
781 gMC->Gspos("ZPG2", 1, "ZPST", 0.+dx, 0.+dy, 0., 0, "ONLY");
782 gMC->Gspos("ZPG3", 1, "ZPST", 0.-dx, 0.-dy, 0., 0, "ONLY");
783 gMC->Gspos("ZPG4", 1, "ZPST", 0.+dx, 0.-dy, 0., 0, "ONLY");
785 // --- Position the fibers in the grooves
786 gMC->Gspos("ZPF1", 1, "ZPG1", 0., 0., 0., 0, "ONLY");
787 gMC->Gspos("ZPF2", 1, "ZPG2", 0., 0., 0., 0, "ONLY");
788 gMC->Gspos("ZPF3", 1, "ZPG3", 0., 0., 0., 0, "ONLY");
789 gMC->Gspos("ZPF4", 1, "ZPG4", 0., 0., 0., 0, "ONLY");
792 // --- Position the proton calorimeter in ZDC
793 gMC->Gspos("ZPRO", 1, "ZDC ", fPosZP[0], fPosZP[1], fPosZP[2] + fDimZP[2], 0, "ONLY");
796 // -------------------------------------------------------------------------------
797 // -> EM calorimeter (ZEM)
799 gMC->Gsvolu("ZEM ", "PARA", idtmed[10], fDimZEM, 6);
803 gMC->Matrix(irot1,0.,0.,90.,90.,90.,180.); // Rotation matrix 1
804 gMC->Matrix(irot2,180.,0.,90.,fDimZEM[3]+90.,90.,fDimZEM[3]); // Rotation matrix 2
805 // printf("irot1 = %d, irot2 = %d \n", irot1, irot2);
807 gMC->Gsvolu("ZEMF", "TUBE", idtmed[3], fFibZEM, 3); // Active material
809 gMC->Gsdvn("ZETR", "ZEM ", fDivZEM[2], 1); // Tranches
811 DimPb[0] = fDimZEMPb; // Lead slices
812 DimPb[1] = fDimZEM[2];
813 DimPb[2] = fDimZEM[1];
814 DimPb[3] = 90.-fDimZEM[3];
817 gMC->Gsvolu("ZEL0", "PARA", idtmed[5], DimPb, 6);
818 gMC->Gsvolu("ZEL1", "PARA", idtmed[5], DimPb, 6);
819 gMC->Gsvolu("ZEL2", "PARA", idtmed[5], DimPb, 6);
821 // --- Position the lead slices in the tranche
822 Float_t zTran = fDimZEM[0]/fDivZEM[2];
823 Float_t zTrPb = -zTran+fDimZEMPb;
824 gMC->Gspos("ZEL0", 1, "ZETR", zTrPb, 0., 0., 0, "ONLY");
825 gMC->Gspos("ZEL1", 1, "ZETR", fDimZEMPb, 0., 0., 0, "ONLY");
827 // --- Vacuum zone (to be filled with fibres)
828 DimVoid[0] = (zTran-2*fDimZEMPb)/2.;
829 DimVoid[1] = fDimZEM[2];
830 DimVoid[2] = fDimZEM[1];
831 DimVoid[3] = 90.-fDimZEM[3];
834 gMC->Gsvolu("ZEV0", "PARA", idtmed[10], DimVoid,6);
835 gMC->Gsvolu("ZEV1", "PARA", idtmed[10], DimVoid,6);
837 // --- Divide the vacuum slice into sticks along x axis
838 gMC->Gsdvn("ZES0", "ZEV0", fDivZEM[0], 3);
839 gMC->Gsdvn("ZES1", "ZEV1", fDivZEM[0], 3);
841 // --- Positioning the fibers into the sticks
842 gMC->Gspos("ZEMF", 1,"ZES0", 0., 0., 0., irot2, "ONLY");
843 gMC->Gspos("ZEMF", 1,"ZES1", 0., 0., 0., irot2, "ONLY");
845 // --- Positioning the vacuum slice into the tranche
846 Float_t DisplFib = fDimZEM[1]/fDivZEM[0];
847 gMC->Gspos("ZEV0", 1,"ZETR", -DimVoid[0], 0., 0., 0, "ONLY");
848 gMC->Gspos("ZEV1", 1,"ZETR", -DimVoid[0]+zTran, 0., DisplFib, 0, "ONLY");
850 // --- Positioning the ZEM into the ZDC - rotation for 90 degrees
851 gMC->Gspos("ZEM ", 1,"ZDC ", fPosZEM[0], fPosZEM[1], fPosZEM[2], irot1, "ONLY");
853 // --- Adding last slice at the end of the EM calorimeter
854 Float_t zLastSlice = fPosZEM[2]+fDimZEMPb+fDimZEM[0];
855 gMC->Gspos("ZEL2", 1,"ZDC ", fPosZEM[0], fPosZEM[1], zLastSlice, irot1, "ONLY");
859 //_____________________________________________________________________________
860 void AliZDCv1::DrawModule()
863 // Draw a shaded view of the Zero Degree Calorimeter version 1
866 // Set everything unseen
867 gMC->Gsatt("*", "seen", -1);
869 // Set ALIC mother transparent
870 gMC->Gsatt("ALIC","SEEN",0);
872 // Set the volumes visible
873 gMC->Gsatt("ZDC ","SEEN",0);
874 gMC->Gsatt("QT01","SEEN",1);
875 gMC->Gsatt("QT02","SEEN",1);
876 gMC->Gsatt("QT03","SEEN",1);
877 gMC->Gsatt("QT04","SEEN",1);
878 gMC->Gsatt("QT05","SEEN",1);
879 gMC->Gsatt("QT06","SEEN",1);
880 gMC->Gsatt("QT07","SEEN",1);
881 gMC->Gsatt("QT08","SEEN",1);
882 gMC->Gsatt("QT09","SEEN",1);
883 gMC->Gsatt("QT10","SEEN",1);
884 gMC->Gsatt("QT11","SEEN",1);
885 gMC->Gsatt("QT12","SEEN",1);
886 gMC->Gsatt("QT13","SEEN",1);
887 gMC->Gsatt("QT14","SEEN",1);
888 gMC->Gsatt("QT15","SEEN",1);
889 gMC->Gsatt("QT16","SEEN",1);
890 gMC->Gsatt("QT17","SEEN",1);
891 gMC->Gsatt("QT18","SEEN",1);
892 gMC->Gsatt("QC01","SEEN",1);
893 gMC->Gsatt("QC02","SEEN",1);
894 gMC->Gsatt("QC03","SEEN",1);
895 gMC->Gsatt("QC04","SEEN",1);
896 gMC->Gsatt("QC05","SEEN",1);
897 gMC->Gsatt("QTD1","SEEN",1);
898 gMC->Gsatt("QTD2","SEEN",1);
899 gMC->Gsatt("QTD3","SEEN",1);
900 gMC->Gsatt("MQXL","SEEN",1);
901 gMC->Gsatt("YMQL","SEEN",1);
902 gMC->Gsatt("MQX ","SEEN",1);
903 gMC->Gsatt("YMQ ","SEEN",1);
904 gMC->Gsatt("ZQYX","SEEN",1);
905 gMC->Gsatt("MD1 ","SEEN",1);
906 gMC->Gsatt("MD1V","SEEN",1);
907 gMC->Gsatt("YD1 ","SEEN",1);
908 gMC->Gsatt("MD2 ","SEEN",1);
909 gMC->Gsatt("YD2 ","SEEN",1);
910 gMC->Gsatt("ZNEU","SEEN",0);
911 gMC->Gsatt("ZNF1","SEEN",0);
912 gMC->Gsatt("ZNF2","SEEN",0);
913 gMC->Gsatt("ZNF3","SEEN",0);
914 gMC->Gsatt("ZNF4","SEEN",0);
915 gMC->Gsatt("ZNG1","SEEN",0);
916 gMC->Gsatt("ZNG2","SEEN",0);
917 gMC->Gsatt("ZNG3","SEEN",0);
918 gMC->Gsatt("ZNG4","SEEN",0);
919 gMC->Gsatt("ZNTX","SEEN",0);
920 gMC->Gsatt("ZN1 ","COLO",4);
921 gMC->Gsatt("ZN1 ","SEEN",1);
922 gMC->Gsatt("ZNSL","SEEN",0);
923 gMC->Gsatt("ZNST","SEEN",0);
924 gMC->Gsatt("ZPRO","SEEN",0);
925 gMC->Gsatt("ZPF1","SEEN",0);
926 gMC->Gsatt("ZPF2","SEEN",0);
927 gMC->Gsatt("ZPF3","SEEN",0);
928 gMC->Gsatt("ZPF4","SEEN",0);
929 gMC->Gsatt("ZPG1","SEEN",0);
930 gMC->Gsatt("ZPG2","SEEN",0);
931 gMC->Gsatt("ZPG3","SEEN",0);
932 gMC->Gsatt("ZPG4","SEEN",0);
933 gMC->Gsatt("ZPTX","SEEN",0);
934 gMC->Gsatt("ZP1 ","COLO",6);
935 gMC->Gsatt("ZP1 ","SEEN",1);
936 gMC->Gsatt("ZPSL","SEEN",0);
937 gMC->Gsatt("ZPST","SEEN",0);
938 gMC->Gsatt("ZEM ","COLO",7);
939 gMC->Gsatt("ZEM ","SEEN",1);
940 gMC->Gsatt("ZEMF","SEEN",0);
941 gMC->Gsatt("ZETR","SEEN",0);
942 gMC->Gsatt("ZEL0","SEEN",0);
943 gMC->Gsatt("ZEL1","SEEN",0);
944 gMC->Gsatt("ZEL2","SEEN",0);
945 gMC->Gsatt("ZEV0","SEEN",0);
946 gMC->Gsatt("ZEV1","SEEN",0);
947 gMC->Gsatt("ZES0","SEEN",0);
948 gMC->Gsatt("ZES1","SEEN",0);
951 gMC->Gdopt("hide", "on");
952 gMC->Gdopt("shad", "on");
953 gMC->Gsatt("*", "fill", 7);
954 gMC->SetClipBox(".");
955 gMC->SetClipBox("*", 0, 100, -100, 100, 12000, 16000);
957 gMC->Gdraw("alic", 40, 30, 0, 488, 220, .07, .07);
958 gMC->Gdhead(1111, "Zero Degree Calorimeter Version 1");
959 gMC->Gdman(18, 4, "MAN");
962 //_____________________________________________________________________________
963 void AliZDCv1::CreateMaterials()
966 // Create Materials for the Zero Degree Calorimeter
969 Int_t *idtmed = fIdtmed->GetArray();
971 Float_t dens, ubuf[1], wmat[2], a[2], z[2], deemax = -1;
974 // --- Store in UBUF r0 for nuclear radius calculation R=r0*A**1/3
976 // --- Tantalum -> ZN passive material
978 AliMaterial(1, "TANT", 180.95, 73., 16.65, .4, 11.9, ubuf, 1);
982 // AliMaterial(1, "TUNG", 183.85, 74., 19.3, .35, 10.3, ubuf, 1);
984 // --- Brass (CuZn) -> ZP passive material
992 AliMixture(2, "BRASS ", a, z, dens, 2, wmat);
1002 AliMixture(3, "SIO2 ", a, z, dens, -2, wmat);
1006 AliMaterial(5, "LEAD", 207.19, 82., 11.35, .56, 18.5, ubuf, 1);
1010 AliMaterial(6, "COPP", 63.54, 29., 8.96, 1.4, 0., ubuf, 1);
1012 // --- Iron (energy loss taken into account)
1014 AliMaterial(7, "IRON", 55.85, 26., 7.87, 1.76, 0., ubuf, 1);
1016 // --- Iron (no energy loss)
1018 AliMaterial(8, "IRON", 55.85, 26., 7.87, 1.76, 0., ubuf, 1);
1020 // --- Vacuum (no magnetic field)
1021 AliMaterial(10, "VOID", 1e-16, 1e-16, 1e-16, 1e16, 1e16, ubuf,0);
1023 // --- Vacuum (with magnetic field)
1024 AliMaterial(11, "VOIM", 1e-16, 1e-16, 1e-16, 1e16, 1e16, ubuf,0);
1026 // --- Air (no magnetic field)
1027 AliMaterial(12, "Air $", 14.61, 7.3, .001205, 30420., 67500., ubuf, 0);
1029 // --- Definition of tracking media:
1031 // --- Tantalum = 1 ;
1033 // --- Fibers (SiO2) = 3 ;
1034 // --- Fibers (SiO2) = 4 ;
1037 // --- Iron (with energy loss) = 7 ;
1038 // --- Iron (without energy loss) = 8 ;
1039 // --- Vacuum (no field) = 10
1040 // --- Vacuum (with field) = 11
1041 // --- Air (no field) = 12
1044 // --- Tracking media parameters
1045 Float_t epsil = .01, stmin=0.01, stemax = 1.;
1046 // Int_t isxfld = gAlice->Field()->Integ();
1047 // Float_t fieldm = gAlice->Field()->Max();
1048 Float_t fieldm = 0., tmaxfd = 0.;
1049 Int_t ifield = 0, isvolActive = 1, isvol = 0, inofld = 0;
1051 AliMedium(1, "ZTANT", 1, isvolActive, inofld, fieldm, tmaxfd, stemax, deemax, epsil, stmin);
1052 // AliMedium(1, "ZW", 1, isvolActive, inofld, fieldm, tmaxfd, stemax, deemax, epsil, stmin);
1053 AliMedium(2, "ZBRASS",2, isvolActive, inofld, fieldm, tmaxfd, stemax, deemax, epsil, stmin);
1054 AliMedium(3, "ZSIO2", 3, isvolActive, inofld, fieldm, tmaxfd, stemax, deemax, epsil, stmin);
1055 AliMedium(4, "ZQUAR", 3, isvolActive, inofld, fieldm, tmaxfd, stemax, deemax, epsil, stmin);
1056 AliMedium(5, "ZLEAD", 5, isvolActive, inofld, fieldm, tmaxfd, stemax, deemax, epsil, stmin);
1057 // AliMedium(6, "ZCOPP", 6, isvolActive, inofld, fieldm, tmaxfd, stemax, deemax, epsil, stmin);
1058 // AliMedium(7, "ZIRON", 7, isvolActive, inofld, fieldm, tmaxfd, stemax, deemax, epsil, stmin);
1059 AliMedium(6, "ZCOPP", 6, isvol, inofld, fieldm, tmaxfd, stemax, deemax, epsil, stmin);
1060 AliMedium(7, "ZIRON", 7, isvol, inofld, fieldm, tmaxfd, stemax, deemax, epsil, stmin);
1061 AliMedium(8, "ZIRONN",8, isvol, inofld, fieldm, tmaxfd, stemax, deemax, epsil, stmin);
1062 AliMedium(10,"ZVOID",10, isvol, inofld, fieldm, tmaxfd, stemax, deemax, epsil, stmin);
1063 AliMedium(12,"ZAIR", 12, 0, inofld, fieldm, tmaxfd, stemax,deemax, epsil, stmin);
1067 AliMedium(11, "ZVOIM", 11, isvol, ifield, fieldm, tmaxfd, stemax, deemax, epsil, stmin);
1069 // Thresholds for showering in the ZDCs
1071 gMC->Gstpar(idtmed[i], "CUTGAM", .001);
1072 gMC->Gstpar(idtmed[i], "CUTELE", .001);
1073 gMC->Gstpar(idtmed[i], "CUTNEU", .01);
1074 gMC->Gstpar(idtmed[i], "CUTHAD", .01);
1076 gMC->Gstpar(idtmed[i], "CUTGAM", .001);
1077 gMC->Gstpar(idtmed[i], "CUTELE", .001);
1078 gMC->Gstpar(idtmed[i], "CUTNEU", .01);
1079 gMC->Gstpar(idtmed[i], "CUTHAD", .01);
1081 gMC->Gstpar(idtmed[i], "CUTGAM", .001);
1082 gMC->Gstpar(idtmed[i], "CUTELE", .001);
1083 gMC->Gstpar(idtmed[i], "CUTNEU", .01);
1084 gMC->Gstpar(idtmed[i], "CUTHAD", .01);
1086 // Avoid too detailed showering in TDI
1088 gMC->Gstpar(idtmed[i], "CUTGAM", .1);
1089 gMC->Gstpar(idtmed[i], "CUTELE", .1);
1090 gMC->Gstpar(idtmed[i], "CUTNEU", 1.);
1091 gMC->Gstpar(idtmed[i], "CUTHAD", 1.);
1093 // Avoid too detailed showering along the beam line
1094 i = 7; //iron with energy loss (ZIRON)
1095 gMC->Gstpar(idtmed[i], "CUTGAM", .1);
1096 gMC->Gstpar(idtmed[i], "CUTELE", .1);
1097 gMC->Gstpar(idtmed[i], "CUTNEU", 1.);
1098 gMC->Gstpar(idtmed[i], "CUTHAD", 1.);
1100 // Avoid too detailed showering along the beam line
1101 i = 8; //iron with energy loss (ZIRONN)
1102 gMC->Gstpar(idtmed[i], "CUTGAM", .1);
1103 gMC->Gstpar(idtmed[i], "CUTELE", .1);
1104 gMC->Gstpar(idtmed[i], "CUTNEU", 1.);
1105 gMC->Gstpar(idtmed[i], "CUTHAD", 1.);
1107 // Avoid interaction in fibers (only energy loss allowed)
1108 i = 3; //fibers (ZSI02)
1109 gMC->Gstpar(idtmed[i], "DCAY", 0.);
1110 gMC->Gstpar(idtmed[i], "MULS", 0.);
1111 gMC->Gstpar(idtmed[i], "PFIS", 0.);
1112 gMC->Gstpar(idtmed[i], "MUNU", 0.);
1113 gMC->Gstpar(idtmed[i], "LOSS", 1.);
1114 gMC->Gstpar(idtmed[i], "PHOT", 0.);
1115 gMC->Gstpar(idtmed[i], "COMP", 0.);
1116 gMC->Gstpar(idtmed[i], "PAIR", 0.);
1117 gMC->Gstpar(idtmed[i], "BREM", 0.);
1118 gMC->Gstpar(idtmed[i], "DRAY", 0.);
1119 gMC->Gstpar(idtmed[i], "ANNI", 0.);
1120 gMC->Gstpar(idtmed[i], "HADR", 0.);
1121 i = 4; //fibers (ZQUAR)
1122 gMC->Gstpar(idtmed[i], "DCAY", 0.);
1123 gMC->Gstpar(idtmed[i], "MULS", 0.);
1124 gMC->Gstpar(idtmed[i], "PFIS", 0.);
1125 gMC->Gstpar(idtmed[i], "MUNU", 0.);
1126 gMC->Gstpar(idtmed[i], "LOSS", 1.);
1127 gMC->Gstpar(idtmed[i], "PHOT", 0.);
1128 gMC->Gstpar(idtmed[i], "COMP", 0.);
1129 gMC->Gstpar(idtmed[i], "PAIR", 0.);
1130 gMC->Gstpar(idtmed[i], "BREM", 0.);
1131 gMC->Gstpar(idtmed[i], "DRAY", 0.);
1132 gMC->Gstpar(idtmed[i], "ANNI", 0.);
1133 gMC->Gstpar(idtmed[i], "HADR", 0.);
1135 // Avoid interaction in void
1136 i = 11; //void with field
1137 gMC->Gstpar(idtmed[i], "DCAY", 0.);
1138 gMC->Gstpar(idtmed[i], "MULS", 0.);
1139 gMC->Gstpar(idtmed[i], "PFIS", 0.);
1140 gMC->Gstpar(idtmed[i], "MUNU", 0.);
1141 gMC->Gstpar(idtmed[i], "LOSS", 0.);
1142 gMC->Gstpar(idtmed[i], "PHOT", 0.);
1143 gMC->Gstpar(idtmed[i], "COMP", 0.);
1144 gMC->Gstpar(idtmed[i], "PAIR", 0.);
1145 gMC->Gstpar(idtmed[i], "BREM", 0.);
1146 gMC->Gstpar(idtmed[i], "DRAY", 0.);
1147 gMC->Gstpar(idtmed[i], "ANNI", 0.);
1148 gMC->Gstpar(idtmed[i], "HADR", 0.);
1151 fMedSensZN = idtmed[1]; // Sensitive volume: ZN passive material
1152 fMedSensZP = idtmed[2]; // Sensitive volume: ZP passive material
1153 fMedSensF1 = idtmed[3]; // Sensitive volume: fibres type 1
1154 fMedSensF2 = idtmed[4]; // Sensitive volume: fibres type 2
1155 fMedSensZEM = idtmed[5]; // Sensitive volume: ZEM passive material
1156 // fMedSensTDI = idtmed[6]; // Sensitive volume: TDI Cu shield
1157 // fMedSensPI = idtmed[7]; // Sensitive volume: beam pipes
1158 fMedSensGR = idtmed[12]; // Sensitive volume: air into the grooves
1161 //_____________________________________________________________________________
1162 void AliZDCv1::Init()
1167 //_____________________________________________________________________________
1168 void AliZDCv1::InitTables()
1172 char *lightfName1,*lightfName2,*lightfName3,*lightfName4,
1173 *lightfName5,*lightfName6,*lightfName7,*lightfName8;
1174 FILE *fp1, *fp2, *fp3, *fp4, *fp5, *fp6, *fp7, *fp8;
1176 // --- Reading light tables for ZN
1177 lightfName1 = gSystem->ExpandPathName("$ALICE/$ALICE_LEVEL/ZDC/light22620362207s");
1178 if((fp1 = fopen(lightfName1,"r")) == NULL){
1179 printf("Cannot open file fp1 \n");
1182 lightfName2 = gSystem->ExpandPathName("$ALICE/$ALICE_LEVEL/ZDC/light22620362208s");
1183 if((fp2 = fopen(lightfName2,"r")) == NULL){
1184 printf("Cannot open file fp2 \n");
1187 lightfName3 = gSystem->ExpandPathName("$ALICE/$ALICE_LEVEL/ZDC/light22620362209s");
1188 if((fp3 = fopen(lightfName3,"r")) == NULL){
1189 printf("Cannot open file fp3 \n");
1192 lightfName4 = gSystem->ExpandPathName("$ALICE/$ALICE_LEVEL/ZDC/light22620362210s");
1193 if((fp4 = fopen(lightfName4,"r")) == NULL){
1194 printf("Cannot open file fp4 \n");
1198 for(k=0; k<fNalfan; k++){
1199 for(j=0; j<fNben; j++){
1200 fscanf(fp1,"%f",&fTablen[0][k][j]);
1201 fscanf(fp2,"%f",&fTablen[1][k][j]);
1202 fscanf(fp3,"%f",&fTablen[2][k][j]);
1203 fscanf(fp4,"%f",&fTablen[3][k][j]);
1211 // --- Reading light tables for ZP and ZEM
1212 lightfName5 = gSystem->ExpandPathName("$ALICE/$ALICE_LEVEL/ZDC/light22620552207s");
1213 if((fp5 = fopen(lightfName5,"r")) == NULL){
1214 printf("Cannot open file fp5 \n");
1217 lightfName6 = gSystem->ExpandPathName("$ALICE/$ALICE_LEVEL/ZDC/light22620552208s");
1218 if((fp6 = fopen(lightfName6,"r")) == NULL){
1219 printf("Cannot open file fp6 \n");
1222 lightfName7 = gSystem->ExpandPathName("$ALICE/$ALICE_LEVEL/ZDC/light22620552209s");
1223 if((fp7 = fopen(lightfName7,"r")) == NULL){
1224 printf("Cannot open file fp7 \n");
1227 lightfName8 = gSystem->ExpandPathName("$ALICE/$ALICE_LEVEL/ZDC/light22620552210s");
1228 if((fp8 = fopen(lightfName8,"r")) == NULL){
1229 printf("Cannot open file fp8 \n");
1233 for(k=0; k<fNalfap; k++){
1234 for(j=0; j<fNbep; j++){
1235 fscanf(fp5,"%f",&fTablep[0][k][j]);
1236 fscanf(fp6,"%f",&fTablep[1][k][j]);
1237 fscanf(fp7,"%f",&fTablep[2][k][j]);
1238 fscanf(fp8,"%f",&fTablep[3][k][j]);
1246 //_____________________________________________________________________________
1247 void AliZDCv1::StepManager()
1250 // Routine called at every step in the Zero Degree Calorimeters
1253 Int_t j, vol[2], ibeta=0, ialfa, ibe, nphe;
1254 Float_t x[3], xdet[3], destep, hits[10], m, ekin, um[3], ud[3], be, radius, out;
1255 Float_t xalic[3], z, GuiEff, GuiPar[4]={0.31,-0.0004,0.0197,0.7958};
1256 TLorentzVector s, p;
1259 for (j=0;j<10;j++) hits[j]=0;
1261 if((gMC->GetMedium() == fMedSensZN) || (gMC->GetMedium() == fMedSensZP) ||
1262 (gMC->GetMedium() == fMedSensGR) || (gMC->GetMedium() == fMedSensF1) ||
1263 (gMC->GetMedium() == fMedSensF2) || (gMC->GetMedium() == fMedSensZEM)){
1265 // --- This part is for no shower developement in beam pipe and TDI
1266 // (gMC->GetMedium() == fMedSensPI) || (gMC->GetMedium() == fMedSensTDI)){
1268 // If particle interacts with beam pipe -> return
1269 // if((gMC->GetMedium() == fMedSensPI) || (gMC->GetMedium() == fMedSensTDI)){
1270 // If option NoShower is set -> StopTrack
1271 // if(fNoShower==1) {
1272 // if(gMC->GetMedium() == fMedSensPI) {
1273 // knamed = gMC->CurrentVolName();
1274 // if((!strncmp(knamed,"MQ",2)) || (!strncmp(knamed,"YM",2))) fpLostIT += 1;
1275 // if((!strncmp(knamed,"MD1",3))|| (!strncmp(knamed,"YD1",2))) fpLostD1 += 1;
1277 // if(gMC->GetMedium() == fMedSensTDI) fpLostTDI += 1;
1278 // gMC->StopTrack();
1279 // printf("\n # of p lost in Inner Triplet = %d\n",fpLostIT);
1280 // printf("\n # of p lost in D1 = %d\n",fpLostD1);
1281 // printf("\n # of p lost in TDI = %d\n",fpLostTDI);
1286 //Particle coordinates
1287 gMC->TrackPosition(s);
1288 for(j=0; j<=2; j++){
1295 // Determine in which ZDC the particle is
1296 knamed = gMC->CurrentVolName();
1297 if(!strncmp(knamed,"ZN",2)){
1300 else if(!strncmp(knamed,"ZP",2)){
1303 else if(!strncmp(knamed,"ZE",2)){
1307 // Determine in which quadrant the particle is
1309 if(vol[0]==1){ //Quadrant in ZN
1310 xdet[0] = x[0]-fPosZN[0];
1311 xdet[1] = x[1]-fPosZN[1];
1312 if((xdet[0]<=0.) && (xdet[1]>=0.)) vol[1]=1;
1313 if((xdet[0]>0.) && (xdet[1]>0.)) vol[1]=2;
1314 if((xdet[0]<0.) && (xdet[1]<0.)) vol[1]=3;
1315 if((xdet[0]>0.) && (xdet[1]<0.)) vol[1]=4;
1317 else if(vol[0]==2){ //Quadrant in ZP
1318 xdet[0] = x[0]-fPosZP[0];
1319 xdet[1] = x[1]-fPosZP[1];
1320 if(xdet[0]>fDimZP[0])xdet[0]=fDimZP[0]-0.01;
1321 if(xdet[0]<-fDimZP[0])xdet[0]=-fDimZP[0]+0.01;
1322 Float_t xqZP = xdet[0]/(fDimZP[0]/2);
1323 for(int i=1; i<=4; i++){
1324 if(xqZP>=(i-3) && xqZP<(i-2)){
1330 else if(vol[0] == 3){ //ZEM has only 1 quadrant
1332 xdet[0] = x[0]-fPosZEM[0];
1333 xdet[1] = x[1]-fPosZEM[1];
1336 // Store impact point and kinetic energy of the ENTERING particle
1338 // if(Curtrack==Prim){
1339 if(gMC->IsTrackEntering()){
1341 gMC->TrackMomentum(p);
1343 // Impact point on ZDC
1351 // Int_t PcID = gMC->TrackPid();
1352 // printf("Pc ID -> %d\n",PcID);
1353 AddHit(gAlice->CurrentTrack(), vol, hits);
1358 // printf("\n # of detected p = %d\n",fpDetected);
1364 // Charged particles -> Energy loss
1365 if((destep=gMC->Edep())){
1366 if(gMC->IsTrackStop()){
1367 gMC->TrackMomentum(p);
1368 m = gMC->TrackMass();
1373 AddHit(gAlice->CurrentTrack(), vol, hits);
1379 AddHit(gAlice->CurrentTrack(), vol, hits);
1381 // printf(" Dep. E = %f \n",hits[9]);
1383 }// NB -> Questa parentesi (chiude il primo IF) io la sposterei al fondo!???
1386 // *** Light production in fibres
1387 if((gMC->GetMedium() == fMedSensF1) || (gMC->GetMedium() == fMedSensF2)){
1389 //Select charged particles
1390 if((destep=gMC->Edep())){
1392 // Particle velocity
1393 gMC->TrackMomentum(p);
1394 Float_t ptot=TMath::Sqrt(p[0]*p[0]+p[1]*p[1]+p[2]*p[2]);
1395 Float_t beta = ptot/p[3];
1399 else if((beta>=0.67) && (beta<=0.75)){
1402 if((beta>0.75) && (beta<=0.85)){
1405 if((beta>0.85) && (beta<=0.95)){
1412 // Angle between particle trajectory and fibre axis
1413 // 1 -> Momentum directions
1417 gMC->Gmtod(um,ud,2);
1418 // 2 -> Angle < limit angle
1419 Double_t alfar = TMath::ACos(ud[2]);
1420 Double_t alfa = alfar*kRaddeg;
1421 if(alfa>=110.) return;
1422 ialfa = Int_t(1.+alfa/2.);
1424 // Distance between particle trajectory and fibre axis
1425 gMC->TrackPosition(s);
1426 for(j=0; j<=2; j++){
1429 gMC->Gmtod(x,xdet,1);
1430 if(TMath::Abs(ud[0])>0.00001){
1431 Float_t dcoeff = ud[1]/ud[0];
1432 be = TMath::Abs((xdet[1]-dcoeff*xdet[0])/TMath::Sqrt(dcoeff*dcoeff+1.));
1435 be = TMath::Abs(ud[0]);
1441 else if((vol[0]==2)){
1444 ibe = Int_t(be*1000.+1);
1446 //Looking into the light tables
1447 Float_t charge = gMC->TrackCharge();
1449 if((vol[0]==1)) { // (1) ZN fibres
1450 if(ibe>fNben) ibe=fNben;
1451 out = charge*charge*fTablen[ibeta][ialfa][ibe];
1452 nphe = gRandom->Poisson(out);
1453 // printf("ZN --- ibeta = %d, ialfa = %d, ibe = %d"
1454 // " -> out = %f, nphe = %d\n", ibeta, ialfa, ibe, out, nphe);
1455 if(gMC->GetMedium() == fMedSensF1){
1456 hits[7] = nphe; //fLightPMQ
1459 AddHit(gAlice->CurrentTrack(), vol, hits);
1463 hits[8] = nphe; //fLightPMC
1465 AddHit(gAlice->CurrentTrack(), vol, hits);
1468 else if((vol[0]==2)) { // (2) ZP fibres
1469 if(ibe>fNbep) ibe=fNbep;
1470 out = charge*charge*fTablep[ibeta][ialfa][ibe];
1471 nphe = gRandom->Poisson(out);
1472 // printf("ZP --- ibeta = %d, ialfa = %d, ibe = %d"
1473 // " -> out = %f, nphe = %d\n", ibeta, ialfa, ibe, out, nphe);
1474 if(gMC->GetMedium() == fMedSensF1){
1475 hits[7] = nphe; //fLightPMQ
1478 AddHit(gAlice->CurrentTrack(), vol, hits);
1482 hits[8] = nphe; //fLightPMC
1484 AddHit(gAlice->CurrentTrack(), vol, hits);
1487 else if((vol[0]==3)) { // (3) ZEM fibres
1488 if(ibe>fNbep) ibe=fNbep;
1489 out = charge*charge*fTablep[ibeta][ialfa][ibe];
1490 gMC->TrackPosition(s);
1491 for(j=0; j<=2; j++){
1494 // z-coordinate from ZEM front face
1495 // NB-> fPosZEM[2]+fZEMLength = -1000.+2*10.3 = 979.69 cm
1496 z = -xalic[2]+fPosZEM[2]+2*fZEMLength-xalic[1];
1497 // z = xalic[2]-fPosZEM[2]-fZEMLength-xalic[1]*(TMath::Tan(45.*kDegrad));
1498 // printf("\n fPosZEM[2]+2*fZEMLength = %f", fPosZEM[2]+2*fZEMLength);
1499 GuiEff = GuiPar[0]*(GuiPar[1]*z*z+GuiPar[2]*z+GuiPar[3]);
1500 // printf("\n xalic[0] = %f xalic[1] = %f xalic[2] = %f z = %f \n",
1501 // xalic[0],xalic[1],xalic[2],z);
1503 nphe = gRandom->Poisson(out);
1504 // printf(" out*GuiEff = %f nphe = %d", out, nphe);
1505 // printf("ZEM --- ibeta = %d, ialfa = %d, ibe = %d"
1506 // " -> out = %f, nphe = %d\n", ibeta, ialfa, ibe, out, nphe);
1508 hits[8] = nphe; //fLightPMC
1510 AddHit(gAlice->CurrentTrack(), vol, hits);