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 ///////////////////////////////////////////////////////////////////////////////
20 // AliZDCv1 --- ZDC geometry as designed in TDR (obsolete!) //
21 // with the EM ZDC at 116 m from IP //
22 // Just one set of ZDC is inserted, on the same side of the dimuon arm //
24 ///////////////////////////////////////////////////////////////////////////////
26 // --- Standard libraries
31 #include <TLorentzVector.h>
37 #include <TVirtualMC.h>
39 // --- AliRoot classes
41 #include "AliDetector.h"
45 #include "AliZDCHit.h"
52 //_____________________________________________________________________________
53 AliZDCv1::AliZDCv1() : AliZDC()
56 // Default constructor for Zero Degree Calorimeter
67 Float_t kDimZEMPb = 0.15*(TMath::Sqrt(2.)); // z-dimension of the Pb slice
68 Float_t kDimZEMAir = 0.001; // scotch
69 Float_t kFibRadZEM = 0.0315; // External fiber radius (including cladding)
70 Int_t kDivZEM[3] = {92, 0, 20}; // Divisions for EM detector
71 Float_t kDimZEM0 = 2*kDivZEM[2]*(kDimZEMPb+kDimZEMAir+kFibRadZEM*(TMath::Sqrt(2.)));
72 fZEMLength = kDimZEM0;
75 //_____________________________________________________________________________
76 AliZDCv1::AliZDCv1(const char *name, const char *title)
80 // Standard constructor for Zero Degree Calorimeter
83 // Check that DIPO, ABSO, DIPO and SHIL is there (otherwise tracking is wrong!!!)
85 AliModule *pipe=gAlice->GetModule("PIPE");
86 AliModule *abso=gAlice->GetModule("ABSO");
87 AliModule *dipo=gAlice->GetModule("DIPO");
88 AliModule *shil=gAlice->GetModule("SHIL");
89 if((!pipe) || (!abso) || (!dipo) || (!shil)) {
90 Error("Constructor","ZDC needs PIPE, ABSO, DIPO and SHIL!!!\n");
104 // Parameters for light tables
105 fNalfan = 90; // Number of Alfa (neutrons)
106 fNalfap = 90; // Number of Alfa (protons)
107 fNben = 18; // Number of beta (neutrons)
108 fNbep = 28; // Number of beta (protons)
110 for(ip=0; ip<4; ip++){
111 for(kp=0; kp<fNalfap; kp++){
112 for(jp=0; jp<fNbep; jp++){
113 fTablep[ip][kp][jp] = 0;
118 for(in=0; in<4; in++){
119 for(kn=0; kn<fNalfan; kn++){
120 for(jn=0; jn<fNben; jn++){
121 fTablen[in][kn][jn] = 0;
126 // Parameters for hadronic calorimeters geometry
143 // Parameters for EM calorimeter geometry
148 Float_t kDimZEMPb = 0.15*(TMath::Sqrt(2.)); // z-dimension of the Pb slice
149 Float_t kDimZEMAir = 0.001; // scotch
150 Float_t kFibRadZEM = 0.0315; // External fiber radius (including cladding)
151 Int_t kDivZEM[3] = {92, 0, 20}; // Divisions for EM detector
152 Float_t kDimZEM0 = 2*kDivZEM[2]*(kDimZEMPb+kDimZEMAir+kFibRadZEM*(TMath::Sqrt(2.)));
153 fZEMLength = kDimZEM0;
156 //_____________________________________________________________________________
157 void AliZDCv1::CreateGeometry()
160 // Create the geometry for the Zero Degree Calorimeter version 1
161 //* Initialize COMMON block ZDC_CGEOM
168 //_____________________________________________________________________________
169 void AliZDCv1::CreateBeamLine()
172 // Create the beam line elements
175 Float_t zq, zd1, zd2;
176 Float_t conpar[9], tubpar[3], tubspar[5], boxpar[3];
179 Int_t *idtmed = fIdtmed->GetArray();
181 // -- Mother of the ZDCs (Vacuum PCON)
192 gMC->Gsvolu("ZDC ", "PCON", idtmed[11], conpar, 9);
193 gMC->Gspos("ZDC ", 1, "ALIC", 0., 0., 0., 0, "ONLY");
195 // -- FIRST SECTION OF THE BEAM PIPE (from compensator dipole to
196 // the beginning of D1)
202 tubpar[2] = 3838.3/2.;
203 gMC->Gsvolu("QT01", "TUBE", idtmed[7], tubpar, 3);
204 gMC->Gspos("QT01", 1, "ZDC ", 0., 0., tubpar[2] + zd1, 0, "ONLY");
206 //-- SECOND SECTION OF THE BEAM PIPE (from the end of D1 to the
209 //-- FROM MAGNETIC BEGINNING OF D1 TO MAGNETIC END OF D1 + 13.5 cm
210 //-- Cylindrical pipe (r = 3.47) + conical flare
212 // -> Beginning of D1
216 tubpar[1] = 3.47+0.2;
217 tubpar[2] = 958.5/2.;
218 gMC->Gsvolu("QT02", "TUBE", idtmed[7], tubpar, 3);
219 gMC->Gspos("QT02", 1, "ZDC ", 0., 0., tubpar[2] + zd1, 0, "ONLY");
228 gMC->Gsvolu("QC01", "CONE", idtmed[7], conpar, 5);
229 gMC->Gspos("QC01", 1, "ZDC ", 0., 0., conpar[0] + zd1, 0, "ONLY");
236 gMC->Gsvolu("QT03", "TUBE", idtmed[7], tubpar, 3);
237 gMC->Gspos("QT03", 1, "ZDC ", 0., 0., tubpar[2] + zd1, 0, "ONLY");
244 gMC->Gsvolu("QT04", "TUBE", idtmed[7], tubpar, 3);
245 gMC->Gspos("QT04", 1, "ZDC ", 0., 0., tubpar[2] + zd1, 0, "ONLY");
247 zd1 += tubpar[2] * 2.;
252 gMC->Gsvolu("QT05", "TUBE", idtmed[7], tubpar, 3);
253 gMC->Gspos("QT05", 1, "ZDC ", 0., 0., tubpar[0] + zd1, 0, "ONLY");
255 zd1 += tubpar[2] * 2.;
260 gMC->Gsvolu("QT06", "TUBE", idtmed[7], tubpar, 3);
261 gMC->Gspos("QT06", 1, "ZDC ", 0., 0., tubpar[2] + zd1, 0, "ONLY");
263 zd1 += tubpar[2] * 2.;
270 gMC->Gsvolu("QC02", "CONE", idtmed[7], conpar, 5);
271 gMC->Gspos("QC02", 1, "ZDC ", 0., 0., conpar[0] + zd1, 0, "ONLY");
273 zd1 += conpar[0] * 2.;
278 gMC->Gsvolu("QT07", "TUBE", idtmed[7], tubpar, 3);
279 gMC->Gspos("QT07", 1, "ZDC ", 0., 0., tubpar[2] + zd1, 0, "ONLY");
281 zd1 += tubpar[2] * 2.;
288 gMC->Gsvolu("QC03", "CONE", idtmed[7], conpar, 5);
289 gMC->Gspos("QC03", 1, "ZDC ", 0., 0., conpar[0] + zd1, 0, "ONLY");
291 zd1 += conpar[0] * 2.;
295 tubpar[2] = 205.8/2.;
296 gMC->Gsvolu("QT08", "TUBE", idtmed[7], tubpar, 3);
297 gMC->Gspos("QT08", 1, "ZDC ", 0., 0., tubpar[2] + zd1, 0, "ONLY");
299 zd1 += tubpar[2] * 2.;
303 // QT09 is 10 cm longer to accomodate TDI
304 tubpar[2] = 515.4/2.;
305 gMC->Gsvolu("QT09", "TUBE", idtmed[7], tubpar, 3);
306 gMC->Gspos("QT09", 1, "ZDC ", 0., 0., tubpar[2] + zd1, 0, "ONLY");
308 // --- Insert TDI (inside ZDC volume)
313 gMC->Gsvolu("QTD1", "BOX ", idtmed[7], boxpar, 3);
314 gMC->Gspos("QTD1", 1, "ZDC ", 3., 10.6, tubpar[2] + zd1 + 56.3, 0, "ONLY");
315 gMC->Gspos("QTD1", 2, "ZDC ", 3., -10.6, tubpar[2] + zd1 + 56.3, 0, "ONLY");
320 gMC->Gsvolu("QTD2", "BOX ", idtmed[6], boxpar, 3);
321 gMC->Gspos("QTD2", 1, "ZDC ", 8.6+boxpar[0], 0., tubpar[2] + zd1 + 56.3, 0, "ONLY");
323 // tubspar[0] = 6.2; // R = 6.2 cm----------------------------------------
325 // tubspar[2] = 400./2.;
326 // tubspar[3] = 180.-62.5;
327 // tubspar[4] = 180.+62.5;
328 tubspar[0] = 10.5; // R = 10.5 cm------------------------------------------
330 tubspar[2] = 400./2.;
331 tubspar[3] = 180.-75.5;
332 tubspar[4] = 180.+75.5;
333 gMC->Gsvolu("QTD3", "TUBS", idtmed[6], tubspar, 5);
334 gMC->Gspos("QTD3", 1, "ZDC ", 0., 0., tubpar[2] + zd1 + 56.3, 0, "ONLY");
336 zd1 += tubpar[2] * 2.;
340 // QT10 is 10 cm shorter
342 gMC->Gsvolu("QT10", "TUBE", idtmed[7], tubpar, 3);
343 gMC->Gspos("QT10", 1, "ZDC ", 0., 0., tubpar[2] + zd1, 0, "ONLY");
345 zd1 += tubpar[2] * 2.;
349 tubpar[2] = 778.5/2.;
350 gMC->Gsvolu("QT11", "TUBE", idtmed[7], tubpar, 3);
351 gMC->Gspos("QT11", 1, "ZDC ", 0., 0., tubpar[2] + zd1, 0, "ONLY");
353 zd1 += tubpar[2] * 2.;
355 conpar[0] = 14.18/2.;
360 gMC->Gsvolu("QC04", "CONE", idtmed[7], conpar, 5);
361 gMC->Gspos("QC04", 1, "ZDC ", 0., 0., conpar[0] + zd1, 0, "ONLY");
363 zd1 += conpar[0] * 2.;
368 gMC->Gsvolu("QT12", "TUBE", idtmed[7], tubpar, 3);
369 gMC->Gspos("QT12", 1, "ZDC ", 0., 0., tubpar[2] + zd1, 0, "ONLY");
371 zd1 += tubpar[2] * 2.;
373 conpar[0] = 36.86/2.;
378 gMC->Gsvolu("QC05", "CONE", idtmed[7], conpar, 5);
379 gMC->Gspos("QC05", 1, "ZDC ", 0., 0., conpar[0] + zd1, 0, "ONLY");
381 zd1 += conpar[0] * 2.;
385 tubpar[2] = 927.3/2.;
386 gMC->Gsvolu("QT13", "TUBE", idtmed[7], tubpar, 3);
387 gMC->Gspos("QT13", 1, "ZDC ", 0., 0., tubpar[2] + zd1, 0, "ONLY");
389 zd1 += tubpar[2] * 2.;
394 gMC->Gsvolu("QT14", "TUBE", idtmed[8], tubpar, 3);
395 gMC->Gspos("QT14", 1, "ZDC ", 0., 0., tubpar[2] + zd1, 0, "ONLY");
397 zd1 += tubpar[2] * 2.;
402 gMC->Gsvolu("QT15", "TUBE", idtmed[11], tubpar, 3);
404 //-- Position QT15 inside QT14
405 gMC->Gspos("QT15", 1, "QT14", -7.7, 0., 0., 0, "ONLY");
410 gMC->Gsvolu("QT16", "TUBE", idtmed[11], tubpar, 3);
412 //-- Position QT16 inside QT14
413 gMC->Gspos("QT16", 1, "QT14", 7.7, 0., 0., 0, "ONLY");
416 //-- BEAM PIPE BETWEEN END OF CONICAL PIPE AND BEGINNING OF D2
420 tubpar[2] = 680.8/2.;
421 gMC->Gsvolu("QT17", "TUBE", idtmed[7], tubpar, 3);
425 tubpar[2] = 680.8/2.;
426 gMC->Gsvolu("QT18", "TUBE", idtmed[7], tubpar, 3);
430 Float_t angle = 0.143*kDegrad;
432 AliMatrix(im1, 90.-0.143, 0., 90., 90., 0.143, 180.);
433 gMC->Gspos("QT17", 1, "ZDC ", TMath::Sin(angle) * 680.8/ 2. - 9.4,
434 0., tubpar[2] + zd1, im1, "ONLY");
436 AliMatrix(im2, 90.+0.143, 0., 90., 90., 0.143, 0.);
437 gMC->Gspos("QT18", 1, "ZDC ", 9.7 - TMath::Sin(angle) * 680.8 / 2.,
438 0., tubpar[2] + zd1, im2, "ONLY");
441 // -- END OF BEAM PIPE VOLUME DEFINITION.
442 // ----------------------------------------------------------------
444 // -- MAGNET DEFINITION -> LHC OPTICS 6.2 (preliminary version)
446 // ----------------------------------------------------------------
447 // Replaced by the muon dipole
448 // ----------------------------------------------------------------
449 // -- COMPENSATOR DIPOLE (MBXW)
450 // GAP (VACUUM WITH MAGNETIC FIELD)
454 // tubpar[2] = 340./2.;
455 // gMC->Gsvolu("MBXW", "TUBE", idtmed[11], tubpar, 3);
456 // gMC->Gspos("MBXW", 1, "ZDC ", 0., 0., tubpar[2] + 805., 0, "ONLY");
458 // -- YOKE (IRON WITHOUT MAGNETIC FIELD)
462 // tubpar[2] = 340./2.;
463 // gMC->Gsvolu("YMBX", "TUBE", idtmed[7], tubpar, 3);
464 // gMC->Gspos("YMBX", 1, "ZDC ", 0., 0., tubpar[2] + 805., 0, "ONLY");
466 // ----------------------------------------------------------------
467 // Replaced by the second dipole
468 // ----------------------------------------------------------------
469 // -- COMPENSATOR DIPOLE (MCBWA)
470 // GAP (VACUUM WITH MAGNETIC FIELD)
474 // tubpar[2] = 170./2.;
475 // gMC->Gsvolu("MCBW", "TUBE", idtmed[11], tubpar, 3);
476 // gMC->Gspos("MCBW", 1, "ZDC ", 0., 0., tubpar[2] + 1921.6, 0, "ONLY");
478 // -- YOKE (IRON WITHOUT MAGNETIC FIELD)
482 // tubpar[2] = 170./2.;
483 // gMC->Gsvolu("YMCB", "TUBE", idtmed[7], tubpar, 3);
484 // gMC->Gspos("YMCB", 1, "ZDC ", 0., 0., tubpar[2] + 1921.6, 0, "ONLY");
490 // -- DEFINE MQXL AND MQX QUADRUPOLE ELEMENT
493 // -- GAP (VACUUM WITH MAGNETIC FIELD)
498 gMC->Gsvolu("MQXL", "TUBE", idtmed[11], tubpar, 3);
505 gMC->Gsvolu("YMQL", "TUBE", idtmed[7], tubpar, 3);
507 gMC->Gspos("MQXL", 1, "ZDC ", 0., 0., tubpar[2] + zq, 0, "ONLY");
508 gMC->Gspos("YMQL", 1, "ZDC ", 0., 0., tubpar[2] + zq, 0, "ONLY");
510 gMC->Gspos("MQXL", 2, "ZDC ", 0., 0., tubpar[2] + zq + 2430., 0, "ONLY");
511 gMC->Gspos("YMQL", 2, "ZDC ", 0., 0., tubpar[2] + zq + 2430., 0, "ONLY");
514 // -- GAP (VACUUM WITH MAGNETIC FIELD)
519 gMC->Gsvolu("MQX ", "TUBE", idtmed[11], tubpar, 3);
526 gMC->Gsvolu("YMQ ", "TUBE", idtmed[7], tubpar, 3);
528 gMC->Gspos("MQX ", 1, "ZDC ", 0., 0., tubpar[2] + zq + 883.5, 0, "ONLY");
529 gMC->Gspos("YMQ ", 1, "ZDC ", 0., 0., tubpar[2] + zq + 883.5, 0, "ONLY");
531 gMC->Gspos("MQX ", 2, "ZDC ", 0., 0., tubpar[2] + zq + 1533.5, 0, "ONLY");
532 gMC->Gspos("YMQ ", 2, "ZDC ", 0., 0., tubpar[2] + zq + 1533.5, 0, "ONLY");
534 // -- SEPARATOR DIPOLE D1
538 // -- GAP (VACUUM WITH MAGNETIC FIELD)
543 gMC->Gsvolu("MD1 ", "TUBE", idtmed[11], tubpar, 3);
545 // -- Insert horizontal Cu plates inside D1
546 // -- (to simulate the vacuum chamber)
548 boxpar[0] = TMath::Sqrt(tubpar[1]*tubpar[1]-(2.98+0.2)*(2.98+0.2));
551 gMC->Gsvolu("MD1V", "BOX ", idtmed[6], boxpar, 3);
552 gMC->Gspos("MD1V", 1, "MD1 ", 0., 2.98+boxpar[1], 0., 0, "ONLY");
553 gMC->Gspos("MD1V", 2, "MD1 ", 0., -2.98-boxpar[1], 0., 0, "ONLY");
560 gMC->Gsvolu("YD1 ", "TUBE", idtmed[7], tubpar, 3);
562 gMC->Gspos("YD1 ", 1, "ZDC ", 0., 0., tubpar[2] + zd1, 0, "ONLY");
563 gMC->Gspos("MD1 ", 1, "YD1 ", 0., 0., 0., 0, "ONLY");
569 // -- GAP (VACUUM WITH MAGNETIC FIELD)
574 gMC->Gsvolu("MD2 ", "TUBE", idtmed[11], tubpar, 3);
581 gMC->Gsvolu("YD2 ", "TUBE", idtmed[7], tubpar, 3);
583 gMC->Gspos("YD2 ", 1, "ZDC ", 0., 0., tubpar[2] + zd2, 0, "ONLY");
585 gMC->Gspos("MD2 ", 1, "YD2 ", -9.4, 0., 0., 0, "ONLY");
586 gMC->Gspos("MD2 ", 2, "YD2 ", 9.4, 0., 0., 0, "ONLY");
588 // -- END OF MAGNET DEFINITION
591 //_____________________________________________________________________________
592 void AliZDCv1::CreateZDC()
595 // Create the various ZDCs (ZN + ZP)
598 Float_t dimPb[6], dimVoid[6];
600 Int_t *idtmed = fIdtmed->GetArray();
602 // Parameters for hadronic calorimeters geometry
603 // NB -> parameters used ONLY in CreateZDC()
604 Float_t fDimZN[3] = {3.52, 3.52, 50.}; // Dimensions of neutron detector
605 Float_t fGrvZN[3] = {0.03, 0.03, 50.}; // Grooves for neutron detector
606 Float_t fGrvZP[3] = {0.04, 0.04, 75.}; // Grooves for proton detector
607 Int_t fDivZN[3] = {11, 11, 0}; // Division for neutron detector
608 Int_t fDivZP[3] = {7, 15, 0}; // Division for proton detector
609 Int_t fTowZN[2] = {2, 2}; // Tower for neutron detector
610 Int_t fTowZP[2] = {4, 1}; // Tower for proton detector
612 // Parameters for EM calorimeter geometry
613 // NB -> parameters used ONLY in CreateZDC()
614 Float_t fDimZEMPb = 0.15*(TMath::Sqrt(2.)); // z-dimension of the Pb slice
615 Float_t fDimZEMAir = 0.001; // scotch
616 Float_t fFibRadZEM = 0.0315; // External fiber radius (including cladding)
617 Int_t fDivZEM[3] = {92, 0, 20}; // Divisions for EM detector
618 Float_t fDimZEM0 = 2*fDivZEM[2]*(fDimZEMPb+fDimZEMAir+fFibRadZEM*(TMath::Sqrt(2.)));
619 Float_t fDimZEM[6] = {fDimZEM0, 3.5, 3.5, 45., 0., 0.}; // Dimensions of EM detector
620 Float_t fFibZEM2 = fDimZEM[2]/TMath::Sin(fDimZEM[3]*kDegrad)-fFibRadZEM;
621 Float_t fFibZEM[3] = {0., 0.0275, fFibZEM2}; // Fibers for EM calorimeter
624 //-- Create calorimeters geometry
626 // -------------------------------------------------------------------------------
627 //--> Neutron calorimeter (ZN)
629 gMC->Gsvolu("ZNEU", "BOX ", idtmed[1], fDimZN, 3); // Passive material
630 gMC->Gsvolu("ZNF1", "TUBE", idtmed[3], fFibZN, 3); // Active material
631 gMC->Gsvolu("ZNF2", "TUBE", idtmed[4], fFibZN, 3);
632 gMC->Gsvolu("ZNF3", "TUBE", idtmed[4], fFibZN, 3);
633 gMC->Gsvolu("ZNF4", "TUBE", idtmed[3], fFibZN, 3);
634 gMC->Gsvolu("ZNG1", "BOX ", idtmed[12], fGrvZN, 3); // Empty grooves
635 gMC->Gsvolu("ZNG2", "BOX ", idtmed[12], fGrvZN, 3);
636 gMC->Gsvolu("ZNG3", "BOX ", idtmed[12], fGrvZN, 3);
637 gMC->Gsvolu("ZNG4", "BOX ", idtmed[12], fGrvZN, 3);
639 // Divide ZNEU in towers (for hits purposes)
641 gMC->Gsdvn("ZNTX", "ZNEU", fTowZN[0], 1); // x-tower
642 gMC->Gsdvn("ZN1 ", "ZNTX", fTowZN[1], 2); // y-tower
644 //-- Divide ZN1 in minitowers
645 // fDivZN[0]= NUMBER OF FIBERS PER TOWER ALONG X-AXIS,
646 // fDivZN[1]= NUMBER OF FIBERS PER TOWER ALONG Y-AXIS
647 // (4 fibres per minitower)
649 gMC->Gsdvn("ZNSL", "ZN1 ", fDivZN[1], 2); // Slices
650 gMC->Gsdvn("ZNST", "ZNSL", fDivZN[0], 1); // Sticks
652 // --- Position the empty grooves in the sticks (4 grooves per stick)
653 Float_t dx = fDimZN[0] / fDivZN[0] / 4.;
654 Float_t dy = fDimZN[1] / fDivZN[1] / 4.;
656 gMC->Gspos("ZNG1", 1, "ZNST", 0.-dx, 0.+dy, 0., 0, "ONLY");
657 gMC->Gspos("ZNG2", 1, "ZNST", 0.+dx, 0.+dy, 0., 0, "ONLY");
658 gMC->Gspos("ZNG3", 1, "ZNST", 0.-dx, 0.-dy, 0., 0, "ONLY");
659 gMC->Gspos("ZNG4", 1, "ZNST", 0.+dx, 0.-dy, 0., 0, "ONLY");
661 // --- Position the fibers in the grooves
662 gMC->Gspos("ZNF1", 1, "ZNG1", 0., 0., 0., 0, "ONLY");
663 gMC->Gspos("ZNF2", 1, "ZNG2", 0., 0., 0., 0, "ONLY");
664 gMC->Gspos("ZNF3", 1, "ZNG3", 0., 0., 0., 0, "ONLY");
665 gMC->Gspos("ZNF4", 1, "ZNG4", 0., 0., 0., 0, "ONLY");
667 // --- Position the neutron calorimeter in ZDC
668 gMC->Gspos("ZNEU", 1, "ZDC ", fPosZN[0], fPosZN[1], fPosZN[2] + fDimZN[2], 0, "ONLY");
671 // -------------------------------------------------------------------------------
672 //--> Proton calorimeter (ZP)
674 gMC->Gsvolu("ZPRO", "BOX ", idtmed[2], fDimZP, 3); // Passive material
675 gMC->Gsvolu("ZPF1", "TUBE", idtmed[3], fFibZP, 3); // Active material
676 gMC->Gsvolu("ZPF2", "TUBE", idtmed[4], fFibZP, 3);
677 gMC->Gsvolu("ZPF3", "TUBE", idtmed[4], fFibZP, 3);
678 gMC->Gsvolu("ZPF4", "TUBE", idtmed[3], fFibZP, 3);
679 gMC->Gsvolu("ZPG1", "BOX ", idtmed[12], fGrvZP, 3); // Empty grooves
680 gMC->Gsvolu("ZPG2", "BOX ", idtmed[12], fGrvZP, 3);
681 gMC->Gsvolu("ZPG3", "BOX ", idtmed[12], fGrvZP, 3);
682 gMC->Gsvolu("ZPG4", "BOX ", idtmed[12], fGrvZP, 3);
684 //-- Divide ZPRO in towers(for hits purposes)
686 gMC->Gsdvn("ZPTX", "ZPRO", fTowZP[0], 1); // x-tower
687 gMC->Gsdvn("ZP1 ", "ZPTX", fTowZP[1], 2); // y-tower
690 //-- Divide ZP1 in minitowers
691 // fDivZP[0]= NUMBER OF FIBERS ALONG X-AXIS PER MINITOWER,
692 // fDivZP[1]= NUMBER OF FIBERS ALONG Y-AXIS PER MINITOWER
693 // (4 fiber per minitower)
695 gMC->Gsdvn("ZPSL", "ZP1 ", fDivZP[1], 2); // Slices
696 gMC->Gsdvn("ZPST", "ZPSL", fDivZP[0], 1); // Sticks
698 // --- Position the empty grooves in the sticks (4 grooves per stick)
699 dx = fDimZP[0] / fTowZP[0] / fDivZP[0] / 2.;
700 dy = fDimZP[1] / fTowZP[1] / fDivZP[1] / 2.;
702 gMC->Gspos("ZPG1", 1, "ZPST", 0.-dx, 0.+dy, 0., 0, "ONLY");
703 gMC->Gspos("ZPG2", 1, "ZPST", 0.+dx, 0.+dy, 0., 0, "ONLY");
704 gMC->Gspos("ZPG3", 1, "ZPST", 0.-dx, 0.-dy, 0., 0, "ONLY");
705 gMC->Gspos("ZPG4", 1, "ZPST", 0.+dx, 0.-dy, 0., 0, "ONLY");
707 // --- Position the fibers in the grooves
708 gMC->Gspos("ZPF1", 1, "ZPG1", 0., 0., 0., 0, "ONLY");
709 gMC->Gspos("ZPF2", 1, "ZPG2", 0., 0., 0., 0, "ONLY");
710 gMC->Gspos("ZPF3", 1, "ZPG3", 0., 0., 0., 0, "ONLY");
711 gMC->Gspos("ZPF4", 1, "ZPG4", 0., 0., 0., 0, "ONLY");
714 // --- Position the proton calorimeter in ZDC
715 gMC->Gspos("ZPRO", 1, "ZDC ", fPosZP[0], fPosZP[1], fPosZP[2] + fDimZP[2], 0, "ONLY");
718 // -------------------------------------------------------------------------------
719 // -> EM calorimeter (ZEM)
721 gMC->Gsvolu("ZEM ", "PARA", idtmed[10], fDimZEM, 6);
725 gMC->Matrix(irot1,0.,0.,90.,90.,90.,180.); // Rotation matrix 1
726 gMC->Matrix(irot2,180.,0.,90.,fDimZEM[3]+90.,90.,fDimZEM[3]); // Rotation matrix 2
727 // printf("irot1 = %d, irot2 = %d \n", irot1, irot2);
729 gMC->Gsvolu("ZEMF", "TUBE", idtmed[3], fFibZEM, 3); // Active material
731 gMC->Gsdvn("ZETR", "ZEM ", fDivZEM[2], 1); // Tranches
733 dimPb[0] = fDimZEMPb; // Lead slices
734 dimPb[1] = fDimZEM[2];
735 dimPb[2] = fDimZEM[1];
736 dimPb[3] = 90.-fDimZEM[3];
739 gMC->Gsvolu("ZEL0", "PARA", idtmed[5], dimPb, 6);
740 gMC->Gsvolu("ZEL1", "PARA", idtmed[5], dimPb, 6);
741 gMC->Gsvolu("ZEL2", "PARA", idtmed[5], dimPb, 6);
743 // --- Position the lead slices in the tranche
744 Float_t zTran = fDimZEM[0]/fDivZEM[2];
745 Float_t zTrPb = -zTran+fDimZEMPb;
746 gMC->Gspos("ZEL0", 1, "ZETR", zTrPb, 0., 0., 0, "ONLY");
747 gMC->Gspos("ZEL1", 1, "ZETR", fDimZEMPb, 0., 0., 0, "ONLY");
749 // --- Vacuum zone (to be filled with fibres)
750 dimVoid[0] = (zTran-2*fDimZEMPb)/2.;
751 dimVoid[1] = fDimZEM[2];
752 dimVoid[2] = fDimZEM[1];
753 dimVoid[3] = 90.-fDimZEM[3];
756 gMC->Gsvolu("ZEV0", "PARA", idtmed[10], dimVoid,6);
757 gMC->Gsvolu("ZEV1", "PARA", idtmed[10], dimVoid,6);
759 // --- Divide the vacuum slice into sticks along x axis
760 gMC->Gsdvn("ZES0", "ZEV0", fDivZEM[0], 3);
761 gMC->Gsdvn("ZES1", "ZEV1", fDivZEM[0], 3);
763 // --- Positioning the fibers into the sticks
764 gMC->Gspos("ZEMF", 1,"ZES0", 0., 0., 0., irot2, "ONLY");
765 gMC->Gspos("ZEMF", 1,"ZES1", 0., 0., 0., irot2, "ONLY");
767 // --- Positioning the vacuum slice into the tranche
768 Float_t displFib = fDimZEM[1]/fDivZEM[0];
769 gMC->Gspos("ZEV0", 1,"ZETR", -dimVoid[0], 0., 0., 0, "ONLY");
770 gMC->Gspos("ZEV1", 1,"ZETR", -dimVoid[0]+zTran, 0., displFib, 0, "ONLY");
772 // --- Positioning the ZEM into the ZDC - rotation for 90 degrees
773 gMC->Gspos("ZEM ", 1,"ZDC ", fPosZEM[0], fPosZEM[1], fPosZEM[2], irot1, "ONLY");
775 // --- Adding last slice at the end of the EM calorimeter
776 Float_t zLastSlice = fPosZEM[2]+fDimZEMPb+fDimZEM[0];
777 gMC->Gspos("ZEL2", 1,"ZDC ", fPosZEM[0], fPosZEM[1], zLastSlice, irot1, "ONLY");
781 //_____________________________________________________________________________
782 void AliZDCv1::DrawModule() const
785 // Draw a shaded view of the Zero Degree Calorimeter version 1
788 // Set everything unseen
789 gMC->Gsatt("*", "seen", -1);
791 // Set ALIC mother transparent
792 gMC->Gsatt("ALIC","SEEN",0);
794 // Set the volumes visible
795 gMC->Gsatt("ZDC ","SEEN",0);
796 gMC->Gsatt("QT01","SEEN",1);
797 gMC->Gsatt("QT02","SEEN",1);
798 gMC->Gsatt("QT03","SEEN",1);
799 gMC->Gsatt("QT04","SEEN",1);
800 gMC->Gsatt("QT05","SEEN",1);
801 gMC->Gsatt("QT06","SEEN",1);
802 gMC->Gsatt("QT07","SEEN",1);
803 gMC->Gsatt("QT08","SEEN",1);
804 gMC->Gsatt("QT09","SEEN",1);
805 gMC->Gsatt("QT10","SEEN",1);
806 gMC->Gsatt("QT11","SEEN",1);
807 gMC->Gsatt("QT12","SEEN",1);
808 gMC->Gsatt("QT13","SEEN",1);
809 gMC->Gsatt("QT14","SEEN",1);
810 gMC->Gsatt("QT15","SEEN",1);
811 gMC->Gsatt("QT16","SEEN",1);
812 gMC->Gsatt("QT17","SEEN",1);
813 gMC->Gsatt("QT18","SEEN",1);
814 gMC->Gsatt("QC01","SEEN",1);
815 gMC->Gsatt("QC02","SEEN",1);
816 gMC->Gsatt("QC03","SEEN",1);
817 gMC->Gsatt("QC04","SEEN",1);
818 gMC->Gsatt("QC05","SEEN",1);
819 gMC->Gsatt("QTD1","SEEN",1);
820 gMC->Gsatt("QTD2","SEEN",1);
821 gMC->Gsatt("QTD3","SEEN",1);
822 gMC->Gsatt("MQXL","SEEN",1);
823 gMC->Gsatt("YMQL","SEEN",1);
824 gMC->Gsatt("MQX ","SEEN",1);
825 gMC->Gsatt("YMQ ","SEEN",1);
826 gMC->Gsatt("ZQYX","SEEN",1);
827 gMC->Gsatt("MD1 ","SEEN",1);
828 gMC->Gsatt("MD1V","SEEN",1);
829 gMC->Gsatt("YD1 ","SEEN",1);
830 gMC->Gsatt("MD2 ","SEEN",1);
831 gMC->Gsatt("YD2 ","SEEN",1);
832 gMC->Gsatt("ZNEU","SEEN",0);
833 gMC->Gsatt("ZNF1","SEEN",0);
834 gMC->Gsatt("ZNF2","SEEN",0);
835 gMC->Gsatt("ZNF3","SEEN",0);
836 gMC->Gsatt("ZNF4","SEEN",0);
837 gMC->Gsatt("ZNG1","SEEN",0);
838 gMC->Gsatt("ZNG2","SEEN",0);
839 gMC->Gsatt("ZNG3","SEEN",0);
840 gMC->Gsatt("ZNG4","SEEN",0);
841 gMC->Gsatt("ZNTX","SEEN",0);
842 gMC->Gsatt("ZN1 ","COLO",4);
843 gMC->Gsatt("ZN1 ","SEEN",1);
844 gMC->Gsatt("ZNSL","SEEN",0);
845 gMC->Gsatt("ZNST","SEEN",0);
846 gMC->Gsatt("ZPRO","SEEN",0);
847 gMC->Gsatt("ZPF1","SEEN",0);
848 gMC->Gsatt("ZPF2","SEEN",0);
849 gMC->Gsatt("ZPF3","SEEN",0);
850 gMC->Gsatt("ZPF4","SEEN",0);
851 gMC->Gsatt("ZPG1","SEEN",0);
852 gMC->Gsatt("ZPG2","SEEN",0);
853 gMC->Gsatt("ZPG3","SEEN",0);
854 gMC->Gsatt("ZPG4","SEEN",0);
855 gMC->Gsatt("ZPTX","SEEN",0);
856 gMC->Gsatt("ZP1 ","COLO",6);
857 gMC->Gsatt("ZP1 ","SEEN",1);
858 gMC->Gsatt("ZPSL","SEEN",0);
859 gMC->Gsatt("ZPST","SEEN",0);
860 gMC->Gsatt("ZEM ","COLO",7);
861 gMC->Gsatt("ZEM ","SEEN",1);
862 gMC->Gsatt("ZEMF","SEEN",0);
863 gMC->Gsatt("ZETR","SEEN",0);
864 gMC->Gsatt("ZEL0","SEEN",0);
865 gMC->Gsatt("ZEL1","SEEN",0);
866 gMC->Gsatt("ZEL2","SEEN",0);
867 gMC->Gsatt("ZEV0","SEEN",0);
868 gMC->Gsatt("ZEV1","SEEN",0);
869 gMC->Gsatt("ZES0","SEEN",0);
870 gMC->Gsatt("ZES1","SEEN",0);
873 gMC->Gdopt("hide", "on");
874 gMC->Gdopt("shad", "on");
875 gMC->Gsatt("*", "fill", 7);
876 gMC->SetClipBox(".");
877 gMC->SetClipBox("*", 0, 100, -100, 100, 12000, 16000);
879 gMC->Gdraw("alic", 40, 30, 0, 488, 220, .07, .07);
880 gMC->Gdhead(1111, "Zero Degree Calorimeter Version 1");
881 gMC->Gdman(18, 4, "MAN");
884 //_____________________________________________________________________________
885 void AliZDCv1::CreateMaterials()
888 // Create Materials for the Zero Degree Calorimeter
891 Int_t *idtmed = fIdtmed->GetArray();
893 Float_t dens, ubuf[1], wmat[2], a[2], z[2], deemax = -1;
896 // --- Store in UBUF r0 for nuclear radius calculation R=r0*A**1/3
898 // --- Tantalum -> ZN passive material
900 AliMaterial(1, "TANT", 180.95, 73., 16.65, .4, 11.9, ubuf, 1);
904 // AliMaterial(1, "TUNG", 183.85, 74., 19.3, .35, 10.3, ubuf, 1);
906 // --- Brass (CuZn) -> ZP passive material
914 AliMixture(2, "BRASS ", a, z, dens, 2, wmat);
924 AliMixture(3, "SIO2 ", a, z, dens, -2, wmat);
928 AliMaterial(5, "LEAD", 207.19, 82., 11.35, .56, 18.5, ubuf, 1);
932 AliMaterial(6, "COPP", 63.54, 29., 8.96, 1.4, 0., ubuf, 1);
934 // --- Iron (energy loss taken into account)
936 AliMaterial(7, "IRON", 55.85, 26., 7.87, 1.76, 0., ubuf, 1);
938 // --- Iron (no energy loss)
940 AliMaterial(8, "IRON", 55.85, 26., 7.87, 1.76, 0., ubuf, 1);
942 // --- Vacuum (no magnetic field)
943 AliMaterial(10, "VOID", 1e-16, 1e-16, 1e-16, 1e16, 1e16, ubuf,0);
945 // --- Vacuum (with magnetic field)
946 AliMaterial(11, "VOIM", 1e-16, 1e-16, 1e-16, 1e16, 1e16, ubuf,0);
948 // --- Air (no magnetic field)
949 AliMaterial(12, "Air $", 14.61, 7.3, .001205, 30420., 67500., ubuf, 0);
951 // --- Definition of tracking media:
953 // --- Tantalum = 1 ;
955 // --- Fibers (SiO2) = 3 ;
956 // --- Fibers (SiO2) = 4 ;
959 // --- Iron (with energy loss) = 7 ;
960 // --- Iron (without energy loss) = 8 ;
961 // --- Vacuum (no field) = 10
962 // --- Vacuum (with field) = 11
963 // --- Air (no field) = 12
966 // --- Tracking media parameters
967 Float_t epsil = .01, stmin=0.01, stemax = 1.;
968 // Int_t isxfld = gAlice->Field()->Integ();
969 // Float_t fieldm = gAlice->Field()->Max();
970 Float_t fieldm = 0., tmaxfd = 0.;
971 Int_t ifield = 0, isvolActive = 1, isvol = 0, inofld = 0;
973 AliMedium(1, "ZTANT", 1, isvolActive, inofld, fieldm, tmaxfd, stemax, deemax, epsil, stmin);
974 // AliMedium(1, "ZW", 1, isvolActive, inofld, fieldm, tmaxfd, stemax, deemax, epsil, stmin);
975 AliMedium(2, "ZBRASS",2, isvolActive, inofld, fieldm, tmaxfd, stemax, deemax, epsil, stmin);
976 AliMedium(3, "ZSIO2", 3, isvolActive, inofld, fieldm, tmaxfd, stemax, deemax, epsil, stmin);
977 AliMedium(4, "ZQUAR", 3, isvolActive, inofld, fieldm, tmaxfd, stemax, deemax, epsil, stmin);
978 AliMedium(5, "ZLEAD", 5, isvolActive, inofld, fieldm, tmaxfd, stemax, deemax, epsil, stmin);
979 // AliMedium(6, "ZCOPP", 6, isvolActive, inofld, fieldm, tmaxfd, stemax, deemax, epsil, stmin);
980 // AliMedium(7, "ZIRON", 7, isvolActive, inofld, fieldm, tmaxfd, stemax, deemax, epsil, stmin);
981 AliMedium(6, "ZCOPP", 6, isvol, inofld, fieldm, tmaxfd, stemax, deemax, epsil, stmin);
982 AliMedium(7, "ZIRON", 7, isvol, inofld, fieldm, tmaxfd, stemax, deemax, epsil, stmin);
983 AliMedium(8, "ZIRONN",8, isvol, inofld, fieldm, tmaxfd, stemax, deemax, epsil, stmin);
984 AliMedium(10,"ZVOID",10, isvol, inofld, fieldm, tmaxfd, stemax, deemax, epsil, stmin);
985 AliMedium(12,"ZAIR", 12, 0, inofld, fieldm, tmaxfd, stemax,deemax, epsil, stmin);
989 AliMedium(11, "ZVOIM", 11, isvol, ifield, fieldm, tmaxfd, stemax, deemax, epsil, stmin);
992 //_____________________________________________________________________________
993 void AliZDCv1::Init()
996 Int_t *idtmed = fIdtmed->GetArray();
998 // Thresholds for showering in the ZDCs
1000 gMC->Gstpar(idtmed[i], "CUTGAM", .001);
1001 gMC->Gstpar(idtmed[i], "CUTELE", .001);
1002 gMC->Gstpar(idtmed[i], "CUTNEU", .01);
1003 gMC->Gstpar(idtmed[i], "CUTHAD", .01);
1005 gMC->Gstpar(idtmed[i], "CUTGAM", .001);
1006 gMC->Gstpar(idtmed[i], "CUTELE", .001);
1007 gMC->Gstpar(idtmed[i], "CUTNEU", .01);
1008 gMC->Gstpar(idtmed[i], "CUTHAD", .01);
1010 gMC->Gstpar(idtmed[i], "CUTGAM", .001);
1011 gMC->Gstpar(idtmed[i], "CUTELE", .001);
1012 gMC->Gstpar(idtmed[i], "CUTNEU", .01);
1013 gMC->Gstpar(idtmed[i], "CUTHAD", .01);
1015 // Avoid too detailed showering in TDI
1017 gMC->Gstpar(idtmed[i], "CUTGAM", .1);
1018 gMC->Gstpar(idtmed[i], "CUTELE", .1);
1019 gMC->Gstpar(idtmed[i], "CUTNEU", 1.);
1020 gMC->Gstpar(idtmed[i], "CUTHAD", 1.);
1022 // Avoid too detailed showering along the beam line
1023 i = 7; //iron with energy loss (ZIRON)
1024 gMC->Gstpar(idtmed[i], "CUTGAM", .1);
1025 gMC->Gstpar(idtmed[i], "CUTELE", .1);
1026 gMC->Gstpar(idtmed[i], "CUTNEU", 1.);
1027 gMC->Gstpar(idtmed[i], "CUTHAD", 1.);
1029 // Avoid too detailed showering along the beam line
1030 i = 8; //iron with energy loss (ZIRONN)
1031 gMC->Gstpar(idtmed[i], "CUTGAM", .1);
1032 gMC->Gstpar(idtmed[i], "CUTELE", .1);
1033 gMC->Gstpar(idtmed[i], "CUTNEU", 1.);
1034 gMC->Gstpar(idtmed[i], "CUTHAD", 1.);
1036 // Avoid interaction in fibers (only energy loss allowed)
1037 i = 3; //fibers (ZSI02)
1038 gMC->Gstpar(idtmed[i], "DCAY", 0.);
1039 gMC->Gstpar(idtmed[i], "MULS", 0.);
1040 gMC->Gstpar(idtmed[i], "PFIS", 0.);
1041 gMC->Gstpar(idtmed[i], "MUNU", 0.);
1042 gMC->Gstpar(idtmed[i], "LOSS", 1.);
1043 gMC->Gstpar(idtmed[i], "PHOT", 0.);
1044 gMC->Gstpar(idtmed[i], "COMP", 0.);
1045 gMC->Gstpar(idtmed[i], "PAIR", 0.);
1046 gMC->Gstpar(idtmed[i], "BREM", 0.);
1047 gMC->Gstpar(idtmed[i], "DRAY", 0.);
1048 gMC->Gstpar(idtmed[i], "ANNI", 0.);
1049 gMC->Gstpar(idtmed[i], "HADR", 0.);
1050 i = 4; //fibers (ZQUAR)
1051 gMC->Gstpar(idtmed[i], "DCAY", 0.);
1052 gMC->Gstpar(idtmed[i], "MULS", 0.);
1053 gMC->Gstpar(idtmed[i], "PFIS", 0.);
1054 gMC->Gstpar(idtmed[i], "MUNU", 0.);
1055 gMC->Gstpar(idtmed[i], "LOSS", 1.);
1056 gMC->Gstpar(idtmed[i], "PHOT", 0.);
1057 gMC->Gstpar(idtmed[i], "COMP", 0.);
1058 gMC->Gstpar(idtmed[i], "PAIR", 0.);
1059 gMC->Gstpar(idtmed[i], "BREM", 0.);
1060 gMC->Gstpar(idtmed[i], "DRAY", 0.);
1061 gMC->Gstpar(idtmed[i], "ANNI", 0.);
1062 gMC->Gstpar(idtmed[i], "HADR", 0.);
1064 // Avoid interaction in void
1065 i = 11; //void with field
1066 gMC->Gstpar(idtmed[i], "DCAY", 0.);
1067 gMC->Gstpar(idtmed[i], "MULS", 0.);
1068 gMC->Gstpar(idtmed[i], "PFIS", 0.);
1069 gMC->Gstpar(idtmed[i], "MUNU", 0.);
1070 gMC->Gstpar(idtmed[i], "LOSS", 0.);
1071 gMC->Gstpar(idtmed[i], "PHOT", 0.);
1072 gMC->Gstpar(idtmed[i], "COMP", 0.);
1073 gMC->Gstpar(idtmed[i], "PAIR", 0.);
1074 gMC->Gstpar(idtmed[i], "BREM", 0.);
1075 gMC->Gstpar(idtmed[i], "DRAY", 0.);
1076 gMC->Gstpar(idtmed[i], "ANNI", 0.);
1077 gMC->Gstpar(idtmed[i], "HADR", 0.);
1080 fMedSensZN = idtmed[1]; // Sensitive volume: ZN passive material
1081 fMedSensZP = idtmed[2]; // Sensitive volume: ZP passive material
1082 fMedSensF1 = idtmed[3]; // Sensitive volume: fibres type 1
1083 fMedSensF2 = idtmed[4]; // Sensitive volume: fibres type 2
1084 fMedSensZEM = idtmed[5]; // Sensitive volume: ZEM passive material
1085 // fMedSensTDI = idtmed[6]; // Sensitive volume: TDI Cu shield
1086 // fMedSensPI = idtmed[7]; // Sensitive volume: beam pipes
1087 fMedSensGR = idtmed[12]; // Sensitive volume: air into the grooves
1090 //_____________________________________________________________________________
1091 void AliZDCv1::InitTables()
1094 // Read light tables for Cerenkov light production parameterization
1099 char *lightfName1,*lightfName2,*lightfName3,*lightfName4,
1100 *lightfName5,*lightfName6,*lightfName7,*lightfName8;
1101 FILE *fp1, *fp2, *fp3, *fp4, *fp5, *fp6, *fp7, *fp8;
1103 // --- Reading light tables for ZN
1104 lightfName1 = gSystem->ExpandPathName("$ALICE_ROOT/ZDC/light22620362207s");
1105 if((fp1 = fopen(lightfName1,"r")) == NULL){
1106 printf("Cannot open file fp1 \n");
1109 lightfName2 = gSystem->ExpandPathName("$ALICE_ROOT/ZDC/light22620362208s");
1110 if((fp2 = fopen(lightfName2,"r")) == NULL){
1111 printf("Cannot open file fp2 \n");
1114 lightfName3 = gSystem->ExpandPathName("$ALICE_ROOT/ZDC/light22620362209s");
1115 if((fp3 = fopen(lightfName3,"r")) == NULL){
1116 printf("Cannot open file fp3 \n");
1119 lightfName4 = gSystem->ExpandPathName("$ALICE_ROOT/ZDC/light22620362210s");
1120 if((fp4 = fopen(lightfName4,"r")) == NULL){
1121 printf("Cannot open file fp4 \n");
1125 for(k=0; k<fNalfan; k++){
1126 for(j=0; j<fNben; j++){
1127 fscanf(fp1,"%f",&fTablen[0][k][j]);
1128 fscanf(fp2,"%f",&fTablen[1][k][j]);
1129 fscanf(fp3,"%f",&fTablen[2][k][j]);
1130 fscanf(fp4,"%f",&fTablen[3][k][j]);
1138 // --- Reading light tables for ZP and ZEM
1139 lightfName5 = gSystem->ExpandPathName("$ALICE_ROOT/ZDC/light22620552207s");
1140 if((fp5 = fopen(lightfName5,"r")) == NULL){
1141 printf("Cannot open file fp5 \n");
1144 lightfName6 = gSystem->ExpandPathName("$ALICE_ROOT/ZDC/light22620552208s");
1145 if((fp6 = fopen(lightfName6,"r")) == NULL){
1146 printf("Cannot open file fp6 \n");
1149 lightfName7 = gSystem->ExpandPathName("$ALICE_ROOT/ZDC/light22620552209s");
1150 if((fp7 = fopen(lightfName7,"r")) == NULL){
1151 printf("Cannot open file fp7 \n");
1154 lightfName8 = gSystem->ExpandPathName("$ALICE_ROOT/ZDC/light22620552210s");
1155 if((fp8 = fopen(lightfName8,"r")) == NULL){
1156 printf("Cannot open file fp8 \n");
1160 for(k=0; k<fNalfap; k++){
1161 for(j=0; j<fNbep; j++){
1162 fscanf(fp5,"%f",&fTablep[0][k][j]);
1163 fscanf(fp6,"%f",&fTablep[1][k][j]);
1164 fscanf(fp7,"%f",&fTablep[2][k][j]);
1165 fscanf(fp8,"%f",&fTablep[3][k][j]);
1173 //_____________________________________________________________________________
1174 void AliZDCv1::StepManager()
1177 // Routine called at every step in the Zero Degree Calorimeters
1180 Int_t j, vol[2], ibeta=0, ialfa, ibe, nphe;
1181 Float_t x[3], xdet[3], destep, hits[10], m, ekin, um[3], ud[3], be, radius, out;
1182 Float_t xalic[3], z, guiEff, guiPar[4]={0.31,-0.0004,0.0197,0.7958};
1183 TLorentzVector s, p;
1186 for (j=0;j<10;j++) hits[j]=0;
1188 if((gMC->CurrentMedium() == fMedSensZN) || (gMC->CurrentMedium() == fMedSensZP) ||
1189 (gMC->CurrentMedium() == fMedSensGR) || (gMC->CurrentMedium() == fMedSensF1) ||
1190 (gMC->CurrentMedium() == fMedSensF2) || (gMC->CurrentMedium() == fMedSensZEM)){
1192 // --- This part is for no shower developement in beam pipe and TDI
1193 // (gMC->CurrentMedium() == fMedSensPI) || (gMC->CurrentMedium() == fMedSensTDI)){
1195 // If particle interacts with beam pipe -> return
1196 // if((gMC->CurrentMedium() == fMedSensPI) || (gMC->CurrentMedium() == fMedSensTDI)){
1197 // If option NoShower is set -> StopTrack
1198 // if(fNoShower==1) {
1199 // if(gMC->CurrentMedium() == fMedSensPI) {
1200 // knamed = gMC->CurrentVolName();
1201 // if((!strncmp(knamed,"MQ",2)) || (!strncmp(knamed,"YM",2))) fpLostIT += 1;
1202 // if((!strncmp(knamed,"MD1",3))|| (!strncmp(knamed,"YD1",2))) fpLostD1 += 1;
1204 // if(gMC->CurrentMedium() == fMedSensTDI) fpLostTDI += 1;
1205 // gMC->StopTrack();
1206 // printf("\n # of p lost in Inner Triplet = %d\n",fpLostIT);
1207 // printf("\n # of p lost in D1 = %d\n",fpLostD1);
1208 // printf("\n # of p lost in TDI = %d\n",fpLostTDI);
1213 //Particle coordinates
1214 gMC->TrackPosition(s);
1215 for(j=0; j<=2; j++){
1222 // Determine in which ZDC the particle is
1223 knamed = gMC->CurrentVolName();
1224 if(!strncmp(knamed,"ZN",2)){
1227 else if(!strncmp(knamed,"ZP",2)){
1230 else if(!strncmp(knamed,"ZE",2)){
1234 // Determine in which quadrant the particle is
1236 if(vol[0]==1){ //Quadrant in ZN
1237 xdet[0] = x[0]-fPosZN[0];
1238 xdet[1] = x[1]-fPosZN[1];
1239 if((xdet[0]<=0.) && (xdet[1]>=0.)) vol[1]=1;
1240 if((xdet[0]>0.) && (xdet[1]>0.)) vol[1]=2;
1241 if((xdet[0]<0.) && (xdet[1]<0.)) vol[1]=3;
1242 if((xdet[0]>0.) && (xdet[1]<0.)) vol[1]=4;
1244 else if(vol[0]==2){ //Quadrant in ZP
1245 xdet[0] = x[0]-fPosZP[0];
1246 xdet[1] = x[1]-fPosZP[1];
1247 if(xdet[0]>fDimZP[0])xdet[0]=fDimZP[0]-0.01;
1248 if(xdet[0]<-fDimZP[0])xdet[0]=-fDimZP[0]+0.01;
1249 Float_t xqZP = xdet[0]/(fDimZP[0]/2);
1250 for(int i=1; i<=4; i++){
1251 if(xqZP>=(i-3) && xqZP<(i-2)){
1257 else if(vol[0] == 3){ //ZEM has only 1 quadrant
1259 xdet[0] = x[0]-fPosZEM[0];
1260 xdet[1] = x[1]-fPosZEM[1];
1263 // Store impact point and kinetic energy of the ENTERING particle
1265 // if(Curtrack==Prim){
1266 if(gMC->IsTrackEntering()){
1268 gMC->TrackMomentum(p);
1270 // Impact point on ZDC
1278 // Int_t PcID = gMC->TrackPid();
1279 // printf("Pc ID -> %d\n",PcID);
1280 AddHit(gAlice->GetMCApp()->GetCurrentTrackNumber(), vol, hits);
1285 // printf("\n # of detected p = %d\n",fpDetected);
1291 // Charged particles -> Energy loss
1292 if((destep=gMC->Edep())){
1293 if(gMC->IsTrackStop()){
1294 gMC->TrackMomentum(p);
1295 m = gMC->TrackMass();
1300 AddHit(gAlice->GetMCApp()->GetCurrentTrackNumber(), vol, hits);
1306 AddHit(gAlice->GetMCApp()->GetCurrentTrackNumber(), vol, hits);
1308 // printf(" Dep. E = %f \n",hits[9]);
1310 }// NB -> Questa parentesi (chiude il primo IF) io la sposterei al fondo!???
1313 // *** Light production in fibres
1314 if((gMC->CurrentMedium() == fMedSensF1) || (gMC->CurrentMedium() == fMedSensF2)){
1316 //Select charged particles
1317 if((destep=gMC->Edep())){
1319 // Particle velocity
1320 gMC->TrackMomentum(p);
1321 Float_t ptot=TMath::Sqrt(p[0]*p[0]+p[1]*p[1]+p[2]*p[2]);
1322 Float_t beta = ptot/p[3];
1326 else if((beta>=0.67) && (beta<=0.75)){
1329 if((beta>0.75) && (beta<=0.85)){
1332 if((beta>0.85) && (beta<=0.95)){
1339 // Angle between particle trajectory and fibre axis
1340 // 1 -> Momentum directions
1344 gMC->Gmtod(um,ud,2);
1345 // 2 -> Angle < limit angle
1346 Double_t alfar = TMath::ACos(ud[2]);
1347 Double_t alfa = alfar*kRaddeg;
1348 if(alfa>=110.) return;
1349 ialfa = Int_t(1.+alfa/2.);
1351 // Distance between particle trajectory and fibre axis
1352 gMC->TrackPosition(s);
1353 for(j=0; j<=2; j++){
1356 gMC->Gmtod(x,xdet,1);
1357 if(TMath::Abs(ud[0])>0.00001){
1358 Float_t dcoeff = ud[1]/ud[0];
1359 be = TMath::Abs((xdet[1]-dcoeff*xdet[0])/TMath::Sqrt(dcoeff*dcoeff+1.));
1362 be = TMath::Abs(ud[0]);
1368 else if((vol[0]==2)){
1371 ibe = Int_t(be*1000.+1);
1373 //Looking into the light tables
1374 Float_t charge = gMC->TrackCharge();
1376 if((vol[0]==1)) { // (1) ZN fibres
1377 if(ibe>fNben) ibe=fNben;
1378 out = charge*charge*fTablen[ibeta][ialfa][ibe];
1379 nphe = gRandom->Poisson(out);
1380 // printf("ZN --- ibeta = %d, ialfa = %d, ibe = %d"
1381 // " -> out = %f, nphe = %d\n", ibeta, ialfa, ibe, out, nphe);
1382 if(gMC->CurrentMedium() == fMedSensF1){
1383 hits[7] = nphe; //fLightPMQ
1386 AddHit(gAlice->GetMCApp()->GetCurrentTrackNumber(), vol, hits);
1390 hits[8] = nphe; //fLightPMC
1392 AddHit(gAlice->GetMCApp()->GetCurrentTrackNumber(), vol, hits);
1395 else if((vol[0]==2)) { // (2) ZP fibres
1396 if(ibe>fNbep) ibe=fNbep;
1397 out = charge*charge*fTablep[ibeta][ialfa][ibe];
1398 nphe = gRandom->Poisson(out);
1399 // printf("ZP --- ibeta = %d, ialfa = %d, ibe = %d"
1400 // " -> out = %f, nphe = %d\n", ibeta, ialfa, ibe, out, nphe);
1401 if(gMC->CurrentMedium() == fMedSensF1){
1402 hits[7] = nphe; //fLightPMQ
1405 AddHit(gAlice->GetMCApp()->GetCurrentTrackNumber(), vol, hits);
1409 hits[8] = nphe; //fLightPMC
1411 AddHit(gAlice->GetMCApp()->GetCurrentTrackNumber(), vol, hits);
1414 else if((vol[0]==3)) { // (3) ZEM fibres
1415 if(ibe>fNbep) ibe=fNbep;
1416 out = charge*charge*fTablep[ibeta][ialfa][ibe];
1417 gMC->TrackPosition(s);
1418 for(j=0; j<=2; j++){
1421 // z-coordinate from ZEM front face
1422 // NB-> fPosZEM[2]+fZEMLength = -1000.+2*10.3 = 979.69 cm
1423 z = -xalic[2]+fPosZEM[2]+2*fZEMLength-xalic[1];
1424 // z = xalic[2]-fPosZEM[2]-fZEMLength-xalic[1]*(TMath::Tan(45.*kDegrad));
1425 // printf("\n fPosZEM[2]+2*fZEMLength = %f", fPosZEM[2]+2*fZEMLength);
1426 guiEff = guiPar[0]*(guiPar[1]*z*z+guiPar[2]*z+guiPar[3]);
1427 // printf("\n xalic[0] = %f xalic[1] = %f xalic[2] = %f z = %f \n",
1428 // xalic[0],xalic[1],xalic[2],z);
1430 nphe = gRandom->Poisson(out);
1431 // printf(" out*guiEff = %f nphe = %d", out, nphe);
1432 // printf("ZEM --- ibeta = %d, ialfa = %d, ibe = %d"
1433 // " -> out = %f, nphe = %d\n", ibeta, ialfa, ibe, out, nphe);
1435 hits[8] = nphe; //fLightPMC
1437 AddHit(gAlice->GetMCApp()->GetCurrentTrackNumber(), vol, hits);