1 /**************************************************************************
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4 * Author: The ALICE Off-line Project. *
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18 Revision 1.2 2001/06/12 13:45:11 coppedis
19 TDI in correct position and minor correction
21 Revision 1.1 2001/05/14 09:57:39 coppedis
22 A different geometry for the ZDCs
27 ///////////////////////////////////////////////////////////////////////////////
29 // Zero Degree Calorimeter //
30 // This class contains the basic functions for the ZDC //
31 // Functions specific to one particular geometry are //
32 // contained in the derived classes //
34 ///////////////////////////////////////////////////////////////////////////////
36 // --- Standard libraries
48 // --- AliRoot classes
50 #include "AliZDCHit.h"
51 #include "AliZDCDigit.h"
53 #include "AliDetector.h"
56 #include "AliCallf77.h"
59 #include "TLorentzVector.h"
65 ///////////////////////////////////////////////////////////////////////////////
67 // Zero Degree Calorimeter version 2 //
69 ///////////////////////////////////////////////////////////////////////////////
71 //_____________________________________________________________________________
72 AliZDCv2::AliZDCv2() : AliZDC()
75 // Default constructor for Zero Degree Calorimeter
88 //_____________________________________________________________________________
89 AliZDCv2::AliZDCv2(const char *name, const char *title)
93 // Standard constructor for Zero Degree Calorimeter
96 // Check that DIPO, ABSO, DIPO and SHIL is there (otherwise tracking is wrong!!!)
98 AliModule* PIPE=gAlice->GetModule("PIPE");
99 AliModule* ABSO=gAlice->GetModule("ABSO");
100 AliModule* DIPO=gAlice->GetModule("DIPO");
101 AliModule* SHIL=gAlice->GetModule("SHIL");
102 if((!PIPE) || (!ABSO) || (!DIPO) || (!SHIL)) {
103 Error("Constructor","ZDC needs PIPE, ABSO, DIPO and SHIL!!!\n");
117 // Parameters for light tables
118 fNalfan = 90; // Number of Alfa (neutrons)
119 fNalfap = 90; // Number of Alfa (protons)
120 fNben = 18; // Number of beta (neutrons)
121 fNbep = 28; // Number of beta (protons)
123 for(ip=0; ip<4; ip++){
124 for(kp=0; kp<fNalfap; kp++){
125 for(jp=0; jp<fNbep; jp++){
126 fTablep[ip][kp][jp] = 0;
131 for(in=0; in<4; in++){
132 for(kn=0; kn<fNalfan; kn++){
133 for(jn=0; jn<fNben; jn++){
134 fTablen[in][kn][jn] = 0;
139 // Parameters for hadronic calorimeters geometry
156 // Parameters for EM calorimeter geometry
162 fDigits = new TClonesArray("AliZDCDigit",1000);
165 //_____________________________________________________________________________
166 void AliZDCv2::CreateGeometry()
169 // Create the geometry for the Zero Degree Calorimeter version 1
170 //* Initialize COMMON block ZDC_CGEOM
177 //_____________________________________________________________________________
178 void AliZDCv2::CreateBeamLine()
181 Float_t zq, zd1, zd2;
182 Float_t conpar[9], tubpar[3], tubspar[5], boxpar[3];
185 Int_t *idtmed = fIdtmed->GetArray();
187 // -- Mother of the ZDCs (Vacuum PCON)
198 gMC->Gsvolu("ZDC ", "PCON", idtmed[11], conpar, 9);
199 gMC->Gspos("ZDC ", 1, "ALIC", 0., 0., 0., 0, "ONLY");
201 // -- FIRST SECTION OF THE BEAM PIPE (from compensator dipole to
202 // the beginning of D1)
208 tubpar[2] = 3838.3/2.;
209 gMC->Gsvolu("QT01", "TUBE", idtmed[7], tubpar, 3);
210 gMC->Gspos("QT01", 1, "ZDC ", 0., 0., tubpar[2] + zd1, 0, "ONLY");
212 //-- SECOND SECTION OF THE BEAM PIPE (from the end of D1 to the
215 //-- FROM MAGNETIC BEGINNING OF D1 TO MAGNETIC END OF D1 + 13.5 cm
216 //-- Cylindrical pipe (r = 3.47) + conical flare
218 // -> Beginning of D1
222 tubpar[1] = 3.47+0.2;
223 tubpar[2] = 958.5/2.;
224 gMC->Gsvolu("QT02", "TUBE", idtmed[7], tubpar, 3);
225 gMC->Gspos("QT02", 1, "ZDC ", 0., 0., tubpar[2] + zd1, 0, "ONLY");
234 gMC->Gsvolu("QC01", "CONE", idtmed[7], conpar, 5);
235 gMC->Gspos("QC01", 1, "ZDC ", 0., 0., conpar[0] + zd1, 0, "ONLY");
242 gMC->Gsvolu("QT03", "TUBE", idtmed[7], tubpar, 3);
243 gMC->Gspos("QT03", 1, "ZDC ", 0., 0., tubpar[2] + zd1, 0, "ONLY");
250 gMC->Gsvolu("QT04", "TUBE", idtmed[7], tubpar, 3);
251 gMC->Gspos("QT04", 1, "ZDC ", 0., 0., tubpar[2] + zd1, 0, "ONLY");
253 zd1 += tubpar[2] * 2.;
258 gMC->Gsvolu("QT05", "TUBE", idtmed[7], tubpar, 3);
259 gMC->Gspos("QT05", 1, "ZDC ", 0., 0., tubpar[0] + zd1, 0, "ONLY");
261 zd1 += tubpar[2] * 2.;
266 gMC->Gsvolu("QT06", "TUBE", idtmed[7], tubpar, 3);
267 gMC->Gspos("QT06", 1, "ZDC ", 0., 0., tubpar[2] + zd1, 0, "ONLY");
269 zd1 += tubpar[2] * 2.;
276 gMC->Gsvolu("QC02", "CONE", idtmed[7], conpar, 5);
277 gMC->Gspos("QC02", 1, "ZDC ", 0., 0., conpar[0] + zd1, 0, "ONLY");
279 zd1 += conpar[0] * 2.;
284 gMC->Gsvolu("QT07", "TUBE", idtmed[7], tubpar, 3);
285 gMC->Gspos("QT07", 1, "ZDC ", 0., 0., tubpar[2] + zd1, 0, "ONLY");
287 zd1 += tubpar[2] * 2.;
294 gMC->Gsvolu("QC03", "CONE", idtmed[7], conpar, 5);
295 gMC->Gspos("QC03", 1, "ZDC ", 0., 0., conpar[0] + zd1, 0, "ONLY");
297 zd1 += conpar[0] * 2.;
301 tubpar[2] = 205.8/2.;
302 gMC->Gsvolu("QT08", "TUBE", idtmed[7], tubpar, 3);
303 gMC->Gspos("QT08", 1, "ZDC ", 0., 0., tubpar[2] + zd1, 0, "ONLY");
305 zd1 += tubpar[2] * 2.;
309 // QT09 is 10 cm longer to accomodate TDI
310 tubpar[2] = 515.4/2.;
311 gMC->Gsvolu("QT09", "TUBE", idtmed[7], tubpar, 3);
312 gMC->Gspos("QT09", 1, "ZDC ", 0., 0., tubpar[2] + zd1, 0, "ONLY");
314 // --- Insert TDI (inside ZDC volume)
319 gMC->Gsvolu("QTD1", "BOX ", idtmed[7], boxpar, 3);
320 gMC->Gspos("QTD1", 1, "ZDC ", 0., 10.6, tubpar[2] + zd1 + 56.3, 0, "ONLY");
321 gMC->Gspos("QTD1", 2, "ZDC ", 0., -10.6, tubpar[2] + zd1 + 56.3, 0, "ONLY");
326 gMC->Gsvolu("QTD2", "BOX ", idtmed[6], boxpar, 3);
327 gMC->Gspos("QTD2", 1, "ZDC ", 5.6+boxpar[0], 0., tubpar[2] + zd1 + 56.3, 0, "ONLY");
329 // tubspar[0] = 6.2; // R = 6.2 cm----------------------------------------
331 // tubspar[2] = 400./2.;
332 // tubspar[3] = 180.-62.5;
333 // tubspar[4] = 180.+62.5;
334 tubspar[0] = 10.5; // R = 10.5 cm------------------------------------------
336 tubspar[2] = 400./2.;
337 tubspar[3] = 180.-75.5;
338 tubspar[4] = 180.+75.5;
339 gMC->Gsvolu("QTD3", "TUBS", idtmed[6], tubspar, 5);
340 gMC->Gspos("QTD3", 1, "ZDC ", -3., 0., tubpar[2] + zd1 + 56.3, 0, "ONLY");
342 zd1 += tubpar[2] * 2.;
346 // QT10 is 10 cm shorter
348 gMC->Gsvolu("QT10", "TUBE", idtmed[7], tubpar, 3);
349 gMC->Gspos("QT10", 1, "ZDC ", 0., 0., tubpar[2] + zd1, 0, "ONLY");
351 zd1 += tubpar[2] * 2.;
355 tubpar[2] = 778.5/2.;
356 gMC->Gsvolu("QT11", "TUBE", idtmed[7], tubpar, 3);
357 gMC->Gspos("QT11", 1, "ZDC ", 0., 0., tubpar[2] + zd1, 0, "ONLY");
359 zd1 += tubpar[2] * 2.;
361 conpar[0] = 14.18/2.;
366 gMC->Gsvolu("QC04", "CONE", idtmed[7], conpar, 5);
367 gMC->Gspos("QC04", 1, "ZDC ", 0., 0., conpar[0] + zd1, 0, "ONLY");
369 zd1 += conpar[0] * 2.;
374 gMC->Gsvolu("QT12", "TUBE", idtmed[7], tubpar, 3);
375 gMC->Gspos("QT12", 1, "ZDC ", 0., 0., tubpar[2] + zd1, 0, "ONLY");
377 zd1 += tubpar[2] * 2.;
379 conpar[0] = 36.86/2.;
384 gMC->Gsvolu("QC05", "CONE", idtmed[7], conpar, 5);
385 gMC->Gspos("QC05", 1, "ZDC ", 0., 0., conpar[0] + zd1, 0, "ONLY");
387 zd1 += conpar[0] * 2.;
391 tubpar[2] = 927.3/2.;
392 gMC->Gsvolu("QT13", "TUBE", idtmed[7], tubpar, 3);
393 gMC->Gspos("QT13", 1, "ZDC ", 0., 0., tubpar[2] + zd1, 0, "ONLY");
395 zd1 += tubpar[2] * 2.;
400 gMC->Gsvolu("QT14", "TUBE", idtmed[8], tubpar, 3);
401 gMC->Gspos("QT14", 1, "ZDC ", 0., 0., tubpar[2] + zd1, 0, "ONLY");
403 zd1 += tubpar[2] * 2.;
408 gMC->Gsvolu("QT15", "TUBE", idtmed[11], tubpar, 3);
410 //-- Position QT15 inside QT14
411 gMC->Gspos("QT15", 1, "QT14", -7.7, 0., 0., 0, "ONLY");
416 gMC->Gsvolu("QT16", "TUBE", idtmed[11], tubpar, 3);
418 //-- Position QT16 inside QT14
419 gMC->Gspos("QT16", 1, "QT14", 7.7, 0., 0., 0, "ONLY");
422 //-- BEAM PIPE BETWEEN END OF CONICAL PIPE AND BEGINNING OF D2
426 tubpar[2] = 680.8/2.;
427 gMC->Gsvolu("QT17", "TUBE", idtmed[7], tubpar, 3);
431 tubpar[2] = 680.8/2.;
432 gMC->Gsvolu("QT18", "TUBE", idtmed[7], tubpar, 3);
436 Float_t angle = 0.143*kDegrad;
438 AliMatrix(im1, 90.-0.143, 0., 90., 90., 0.143, 180.);
439 gMC->Gspos("QT17", 1, "ZDC ", TMath::Sin(angle) * 680.8/ 2. - 9.4,
440 0., tubpar[2] + zd1, im1, "ONLY");
442 AliMatrix(im2, 90.+0.143, 0., 90., 90., 0.143, 0.);
443 gMC->Gspos("QT18", 1, "ZDC ", 9.7 - TMath::Sin(angle) * 680.8 / 2.,
444 0., tubpar[2] + zd1, im2, "ONLY");
446 // -- BEAM PIPE ON THE OTHER SIDE OF I.P. TILL THE EM ZDC
448 Float_t zb = -800.; // End of QBPM (from AliPIPEv0.cxx)
451 tubpar[2] = (1050+zb)/2.; // From the end of QBPM to z=1050.
452 gMC->Gsvolu("QT19", "TUBE", idtmed[7], tubpar, 3);
453 gMC->Gspos("QT19", 1, "ZDC ", 0., 0., zb - tubpar[2], 0, "ONLY");
456 // -- END OF BEAM PIPE VOLUME DEFINITION.
457 // ----------------------------------------------------------------
459 // -- MAGNET DEFINITION -> LHC OPTICS 6.2 (preliminary version)
461 // ----------------------------------------------------------------
462 // Replaced by the muon dipole
463 // ----------------------------------------------------------------
464 // -- COMPENSATOR DIPOLE (MBXW)
465 // GAP (VACUUM WITH MAGNETIC FIELD)
469 // tubpar[2] = 340./2.;
470 // gMC->Gsvolu("MBXW", "TUBE", idtmed[11], tubpar, 3);
471 // gMC->Gspos("MBXW", 1, "ZDC ", 0., 0., tubpar[2] + 805., 0, "ONLY");
473 // -- YOKE (IRON WITHOUT MAGNETIC FIELD)
477 // tubpar[2] = 340./2.;
478 // gMC->Gsvolu("YMBX", "TUBE", idtmed[7], tubpar, 3);
479 // gMC->Gspos("YMBX", 1, "ZDC ", 0., 0., tubpar[2] + 805., 0, "ONLY");
481 // ----------------------------------------------------------------
482 // Replaced by the second dipole
483 // ----------------------------------------------------------------
484 // -- COMPENSATOR DIPOLE (MCBWA)
485 // GAP (VACUUM WITH MAGNETIC FIELD)
489 // tubpar[2] = 170./2.;
490 // gMC->Gsvolu("MCBW", "TUBE", idtmed[11], tubpar, 3);
491 // gMC->Gspos("MCBW", 1, "ZDC ", 0., 0., tubpar[2] + 1921.6, 0, "ONLY");
493 // -- YOKE (IRON WITHOUT MAGNETIC FIELD)
497 // tubpar[2] = 170./2.;
498 // gMC->Gsvolu("YMCB", "TUBE", idtmed[7], tubpar, 3);
499 // gMC->Gspos("YMCB", 1, "ZDC ", 0., 0., tubpar[2] + 1921.6, 0, "ONLY");
505 // -- DEFINE MQXL AND MQX QUADRUPOLE ELEMENT
508 // -- GAP (VACUUM WITH MAGNETIC FIELD)
513 gMC->Gsvolu("MQXL", "TUBE", idtmed[11], tubpar, 3);
520 gMC->Gsvolu("YMQL", "TUBE", idtmed[7], tubpar, 3);
522 gMC->Gspos("MQXL", 1, "ZDC ", 0., 0., tubpar[2] + zq, 0, "ONLY");
523 gMC->Gspos("YMQL", 1, "ZDC ", 0., 0., tubpar[2] + zq, 0, "ONLY");
525 gMC->Gspos("MQXL", 2, "ZDC ", 0., 0., tubpar[2] + zq + 2430., 0, "ONLY");
526 gMC->Gspos("YMQL", 2, "ZDC ", 0., 0., tubpar[2] + zq + 2430., 0, "ONLY");
529 // -- GAP (VACUUM WITH MAGNETIC FIELD)
534 gMC->Gsvolu("MQX ", "TUBE", idtmed[11], tubpar, 3);
541 gMC->Gsvolu("YMQ ", "TUBE", idtmed[7], tubpar, 3);
543 gMC->Gspos("MQX ", 1, "ZDC ", 0., 0., tubpar[2] + zq + 883.5, 0, "ONLY");
544 gMC->Gspos("YMQ ", 1, "ZDC ", 0., 0., tubpar[2] + zq + 883.5, 0, "ONLY");
546 gMC->Gspos("MQX ", 2, "ZDC ", 0., 0., tubpar[2] + zq + 1533.5, 0, "ONLY");
547 gMC->Gspos("YMQ ", 2, "ZDC ", 0., 0., tubpar[2] + zq + 1533.5, 0, "ONLY");
549 // -- SEPARATOR DIPOLE D1
553 // -- GAP (VACUUM WITH MAGNETIC FIELD)
558 gMC->Gsvolu("MD1 ", "TUBE", idtmed[11], tubpar, 3);
560 // -- Insert horizontal Cu plates inside D1
561 // -- (to simulate the vacuum chamber)
563 boxpar[0] = TMath::Sqrt(tubpar[1]*tubpar[1]-(2.98+0.2)*(2.98+0.2));
566 gMC->Gsvolu("MD1V", "BOX ", idtmed[6], boxpar, 3);
567 gMC->Gspos("MD1V", 1, "MD1 ", 0., 2.98+boxpar[1], 0., 0, "ONLY");
568 gMC->Gspos("MD1V", 2, "MD1 ", 0., -2.98-boxpar[1], 0., 0, "ONLY");
575 gMC->Gsvolu("YD1 ", "TUBE", idtmed[7], tubpar, 3);
577 gMC->Gspos("YD1 ", 1, "ZDC ", 0., 0., tubpar[2] + zd1, 0, "ONLY");
578 gMC->Gspos("MD1 ", 1, "YD1 ", 0., 0., 0., 0, "ONLY");
584 // -- GAP (VACUUM WITH MAGNETIC FIELD)
589 gMC->Gsvolu("MD2 ", "TUBE", idtmed[11], tubpar, 3);
596 gMC->Gsvolu("YD2 ", "TUBE", idtmed[7], tubpar, 3);
598 gMC->Gspos("YD2 ", 1, "ZDC ", 0., 0., tubpar[2] + zd2, 0, "ONLY");
600 gMC->Gspos("MD2 ", 1, "YD2 ", -9.4, 0., 0., 0, "ONLY");
601 gMC->Gspos("MD2 ", 2, "YD2 ", 9.4, 0., 0., 0, "ONLY");
603 // -- END OF MAGNET DEFINITION
606 //_____________________________________________________________________________
607 void AliZDCv2::CreateZDC()
610 Float_t DimPb[6], DimVoid[6];
612 Int_t *idtmed = fIdtmed->GetArray();
614 // Parameters for hadronic calorimeters geometry
615 // NB -> parameters used ONLY in CreateZDC()
616 Float_t fDimZN[3] = {3.52, 3.52, 50.}; // Dimensions of neutron detector
617 Float_t fGrvZN[3] = {0.03, 0.03, 50.}; // Grooves for neutron detector
618 Float_t fGrvZP[3] = {0.04, 0.04, 75.}; // Grooves for proton detector
619 Int_t fDivZN[3] = {11, 11, 0}; // Division for neutron detector
620 Int_t fDivZP[3] = {7, 15, 0}; // Division for proton detector
621 Int_t fTowZN[2] = {2, 2}; // Tower for neutron detector
622 Int_t fTowZP[2] = {4, 1}; // Tower for proton detector
624 // Parameters for EM calorimeter geometry
625 // NB -> parameters used ONLY in CreateZDC()
626 Float_t fDimZEMPb = 0.15*(TMath::Sqrt(2.)); // z-dimension of the Pb slice
627 Float_t fDimZEMAir = 0.001; // scotch
628 Float_t fFibRadZEM = 0.0315; // External fiber radius (including cladding)
629 Int_t fDivZEM[3] = {92, 0, 20}; // Divisions for EM detector
630 Float_t fDimZEM0 = 2*fDivZEM[2]*(fDimZEMPb+fDimZEMAir+fFibRadZEM*(TMath::Sqrt(2.)));
631 Float_t fDimZEM[6] = {fDimZEM0, 3.5, 3.5, 45., 0., 0.}; // Dimensions of EM detector
632 Float_t fFibZEM2 = fDimZEM[2]/TMath::Sin(fDimZEM[3]*kDegrad)-fFibRadZEM;
633 Float_t fFibZEM[3] = {0., 0.0275, fFibZEM2}; // Fibers for EM calorimeter
636 //-- Create calorimeters geometry
638 // -------------------------------------------------------------------------------
639 //--> Neutron calorimeter (ZN)
641 gMC->Gsvolu("ZNEU", "BOX ", idtmed[1], fDimZN, 3); // Passive material
642 gMC->Gsvolu("ZNF1", "TUBE", idtmed[3], fFibZN, 3); // Active material
643 gMC->Gsvolu("ZNF2", "TUBE", idtmed[4], fFibZN, 3);
644 gMC->Gsvolu("ZNF3", "TUBE", idtmed[4], fFibZN, 3);
645 gMC->Gsvolu("ZNF4", "TUBE", idtmed[3], fFibZN, 3);
646 gMC->Gsvolu("ZNG1", "BOX ", idtmed[12], fGrvZN, 3); // Empty grooves
647 gMC->Gsvolu("ZNG2", "BOX ", idtmed[12], fGrvZN, 3);
648 gMC->Gsvolu("ZNG3", "BOX ", idtmed[12], fGrvZN, 3);
649 gMC->Gsvolu("ZNG4", "BOX ", idtmed[12], fGrvZN, 3);
651 // Divide ZNEU in towers (for hits purposes)
653 gMC->Gsdvn("ZNTX", "ZNEU", fTowZN[0], 1); // x-tower
654 gMC->Gsdvn("ZN1 ", "ZNTX", fTowZN[1], 2); // y-tower
656 //-- Divide ZN1 in minitowers
657 // fDivZN[0]= NUMBER OF FIBERS PER TOWER ALONG X-AXIS,
658 // fDivZN[1]= NUMBER OF FIBERS PER TOWER ALONG Y-AXIS
659 // (4 fibres per minitower)
661 gMC->Gsdvn("ZNSL", "ZN1 ", fDivZN[1], 2); // Slices
662 gMC->Gsdvn("ZNST", "ZNSL", fDivZN[0], 1); // Sticks
664 // --- Position the empty grooves in the sticks (4 grooves per stick)
665 Float_t dx = fDimZN[0] / fDivZN[0] / 4.;
666 Float_t dy = fDimZN[1] / fDivZN[1] / 4.;
668 gMC->Gspos("ZNG1", 1, "ZNST", 0.-dx, 0.+dy, 0., 0, "ONLY");
669 gMC->Gspos("ZNG2", 1, "ZNST", 0.+dx, 0.+dy, 0., 0, "ONLY");
670 gMC->Gspos("ZNG3", 1, "ZNST", 0.-dx, 0.-dy, 0., 0, "ONLY");
671 gMC->Gspos("ZNG4", 1, "ZNST", 0.+dx, 0.-dy, 0., 0, "ONLY");
673 // --- Position the fibers in the grooves
674 gMC->Gspos("ZNF1", 1, "ZNG1", 0., 0., 0., 0, "ONLY");
675 gMC->Gspos("ZNF2", 1, "ZNG2", 0., 0., 0., 0, "ONLY");
676 gMC->Gspos("ZNF3", 1, "ZNG3", 0., 0., 0., 0, "ONLY");
677 gMC->Gspos("ZNF4", 1, "ZNG4", 0., 0., 0., 0, "ONLY");
679 // --- Position the neutron calorimeter in ZDC
680 gMC->Gspos("ZNEU", 1, "ZDC ", fPosZN[0], fPosZN[1], fPosZN[2] + fDimZN[2], 0, "ONLY");
683 // -------------------------------------------------------------------------------
684 //--> Proton calorimeter (ZP)
686 gMC->Gsvolu("ZPRO", "BOX ", idtmed[2], fDimZP, 3); // Passive material
687 gMC->Gsvolu("ZPF1", "TUBE", idtmed[3], fFibZP, 3); // Active material
688 gMC->Gsvolu("ZPF2", "TUBE", idtmed[4], fFibZP, 3);
689 gMC->Gsvolu("ZPF3", "TUBE", idtmed[4], fFibZP, 3);
690 gMC->Gsvolu("ZPF4", "TUBE", idtmed[3], fFibZP, 3);
691 gMC->Gsvolu("ZPG1", "BOX ", idtmed[12], fGrvZP, 3); // Empty grooves
692 gMC->Gsvolu("ZPG2", "BOX ", idtmed[12], fGrvZP, 3);
693 gMC->Gsvolu("ZPG3", "BOX ", idtmed[12], fGrvZP, 3);
694 gMC->Gsvolu("ZPG4", "BOX ", idtmed[12], fGrvZP, 3);
696 //-- Divide ZPRO in towers(for hits purposes)
698 gMC->Gsdvn("ZPTX", "ZPRO", fTowZP[0], 1); // x-tower
699 gMC->Gsdvn("ZP1 ", "ZPTX", fTowZP[1], 2); // y-tower
702 //-- Divide ZP1 in minitowers
703 // fDivZP[0]= NUMBER OF FIBERS ALONG X-AXIS PER MINITOWER,
704 // fDivZP[1]= NUMBER OF FIBERS ALONG Y-AXIS PER MINITOWER
705 // (4 fiber per minitower)
707 gMC->Gsdvn("ZPSL", "ZP1 ", fDivZP[1], 2); // Slices
708 gMC->Gsdvn("ZPST", "ZPSL", fDivZP[0], 1); // Sticks
710 // --- Position the empty grooves in the sticks (4 grooves per stick)
711 dx = fDimZP[0] / fTowZP[0] / fDivZP[0] / 2.;
712 dy = fDimZP[1] / fTowZP[1] / fDivZP[1] / 2.;
714 gMC->Gspos("ZPG1", 1, "ZPST", 0.-dx, 0.+dy, 0., 0, "ONLY");
715 gMC->Gspos("ZPG2", 1, "ZPST", 0.+dx, 0.+dy, 0., 0, "ONLY");
716 gMC->Gspos("ZPG3", 1, "ZPST", 0.-dx, 0.-dy, 0., 0, "ONLY");
717 gMC->Gspos("ZPG4", 1, "ZPST", 0.+dx, 0.-dy, 0., 0, "ONLY");
719 // --- Position the fibers in the grooves
720 gMC->Gspos("ZPF1", 1, "ZPG1", 0., 0., 0., 0, "ONLY");
721 gMC->Gspos("ZPF2", 1, "ZPG2", 0., 0., 0., 0, "ONLY");
722 gMC->Gspos("ZPF3", 1, "ZPG3", 0., 0., 0., 0, "ONLY");
723 gMC->Gspos("ZPF4", 1, "ZPG4", 0., 0., 0., 0, "ONLY");
726 // --- Position the proton calorimeter in ZDC
727 gMC->Gspos("ZPRO", 1, "ZDC ", fPosZP[0], fPosZP[1], fPosZP[2] + fDimZP[2], 0, "ONLY");
730 // -------------------------------------------------------------------------------
731 // -> EM calorimeter (ZEM)
733 gMC->Gsvolu("ZEM ", "PARA", idtmed[10], fDimZEM, 6);
737 gMC->Matrix(irot1,180.,0.,90.,90.,90.,0.); // Rotation matrix 1
738 gMC->Matrix(irot2,180.,0.,90.,fDimZEM[3]+90.,90.,fDimZEM[3]);// Rotation matrix 2
739 // printf("irot1 = %d, irot2 = %d \n", irot1, irot2);
741 gMC->Gsvolu("ZEMF", "TUBE", idtmed[3], fFibZEM, 3); // Active material
743 gMC->Gsdvn("ZETR", "ZEM ", fDivZEM[2], 1); // Tranches
745 DimPb[0] = fDimZEMPb; // Lead slices
746 DimPb[1] = fDimZEM[2];
747 DimPb[2] = fDimZEM[1];
748 DimPb[3] = 90.-fDimZEM[3];
751 gMC->Gsvolu("ZEL0", "PARA", idtmed[5], DimPb, 6);
752 gMC->Gsvolu("ZEL1", "PARA", idtmed[5], DimPb, 6);
753 // gMC->Gsvolu("ZEL2", "PARA", idtmed[5], DimPb, 6);
755 // --- Position the lead slices in the tranche
756 Float_t zTran = fDimZEM[0]/fDivZEM[2];
757 Float_t zTrPb = -zTran+fDimZEMPb;
758 gMC->Gspos("ZEL0", 1, "ZETR", zTrPb, 0., 0., 0, "ONLY");
759 gMC->Gspos("ZEL1", 1, "ZETR", fDimZEMPb, 0., 0., 0, "ONLY");
761 // --- Vacuum zone (to be filled with fibres)
762 DimVoid[0] = (zTran-2*fDimZEMPb)/2.;
763 DimVoid[1] = fDimZEM[2];
764 DimVoid[2] = fDimZEM[1];
765 DimVoid[3] = 90.-fDimZEM[3];
768 gMC->Gsvolu("ZEV0", "PARA", idtmed[10], DimVoid,6);
769 gMC->Gsvolu("ZEV1", "PARA", idtmed[10], DimVoid,6);
771 // --- Divide the vacuum slice into sticks along x axis
772 gMC->Gsdvn("ZES0", "ZEV0", fDivZEM[0], 3);
773 gMC->Gsdvn("ZES1", "ZEV1", fDivZEM[0], 3);
775 // --- Positioning the fibers into the sticks
776 gMC->Gspos("ZEMF", 1,"ZES0", 0., 0., 0., irot2, "ONLY");
777 gMC->Gspos("ZEMF", 1,"ZES1", 0., 0., 0., irot2, "ONLY");
779 // --- Positioning the vacuum slice into the tranche
780 Float_t DisplFib = fDimZEM[1]/fDivZEM[0];
781 gMC->Gspos("ZEV0", 1,"ZETR", -DimVoid[0], 0., 0., 0, "ONLY");
782 gMC->Gspos("ZEV1", 1,"ZETR", -DimVoid[0]+zTran, 0., DisplFib, 0, "ONLY");
784 // --- Positioning the ZEM into the ZDC - rotation for 90 degrees
785 gMC->Gspos("ZEM ", 1,"ZDC ", fPosZEM[0], fPosZEM[1], fPosZEM[2]+fDimZEM[0], irot1, "ONLY");
787 // --- Adding last slice at the end of the EM calorimeter
788 // Float_t zLastSlice = fPosZEM[2]+fDimZEMPb+fDimZEM[0];
789 // gMC->Gspos("ZEL2", 1,"ZDC ", fPosZEM[0], fPosZEM[1], zLastSlice, irot1, "ONLY");
793 //_____________________________________________________________________________
794 void AliZDCv2::DrawModule()
797 // Draw a shaded view of the Zero Degree Calorimeter version 1
800 // Set everything unseen
801 gMC->Gsatt("*", "seen", -1);
803 // Set ALIC mother transparent
804 gMC->Gsatt("ALIC","SEEN",0);
806 // Set the volumes visible
807 gMC->Gsatt("ZDC ","SEEN",0);
808 gMC->Gsatt("QT01","SEEN",1);
809 gMC->Gsatt("QT02","SEEN",1);
810 gMC->Gsatt("QT03","SEEN",1);
811 gMC->Gsatt("QT04","SEEN",1);
812 gMC->Gsatt("QT05","SEEN",1);
813 gMC->Gsatt("QT06","SEEN",1);
814 gMC->Gsatt("QT07","SEEN",1);
815 gMC->Gsatt("QT08","SEEN",1);
816 gMC->Gsatt("QT09","SEEN",1);
817 gMC->Gsatt("QT10","SEEN",1);
818 gMC->Gsatt("QT11","SEEN",1);
819 gMC->Gsatt("QT12","SEEN",1);
820 gMC->Gsatt("QT13","SEEN",1);
821 gMC->Gsatt("QT14","SEEN",1);
822 gMC->Gsatt("QT15","SEEN",1);
823 gMC->Gsatt("QT16","SEEN",1);
824 gMC->Gsatt("QT17","SEEN",1);
825 gMC->Gsatt("QT18","SEEN",1);
826 gMC->Gsatt("QC01","SEEN",1);
827 gMC->Gsatt("QC02","SEEN",1);
828 gMC->Gsatt("QC03","SEEN",1);
829 gMC->Gsatt("QC04","SEEN",1);
830 gMC->Gsatt("QC05","SEEN",1);
831 gMC->Gsatt("QTD1","SEEN",1);
832 gMC->Gsatt("QTD2","SEEN",1);
833 gMC->Gsatt("QTD3","SEEN",1);
834 gMC->Gsatt("MQXL","SEEN",1);
835 gMC->Gsatt("YMQL","SEEN",1);
836 gMC->Gsatt("MQX ","SEEN",1);
837 gMC->Gsatt("YMQ ","SEEN",1);
838 gMC->Gsatt("ZQYX","SEEN",1);
839 gMC->Gsatt("MD1 ","SEEN",1);
840 gMC->Gsatt("MD1V","SEEN",1);
841 gMC->Gsatt("YD1 ","SEEN",1);
842 gMC->Gsatt("MD2 ","SEEN",1);
843 gMC->Gsatt("YD2 ","SEEN",1);
844 gMC->Gsatt("ZNEU","SEEN",0);
845 gMC->Gsatt("ZNF1","SEEN",0);
846 gMC->Gsatt("ZNF2","SEEN",0);
847 gMC->Gsatt("ZNF3","SEEN",0);
848 gMC->Gsatt("ZNF4","SEEN",0);
849 gMC->Gsatt("ZNG1","SEEN",0);
850 gMC->Gsatt("ZNG2","SEEN",0);
851 gMC->Gsatt("ZNG3","SEEN",0);
852 gMC->Gsatt("ZNG4","SEEN",0);
853 gMC->Gsatt("ZNTX","SEEN",0);
854 gMC->Gsatt("ZN1 ","COLO",4);
855 gMC->Gsatt("ZN1 ","SEEN",1);
856 gMC->Gsatt("ZNSL","SEEN",0);
857 gMC->Gsatt("ZNST","SEEN",0);
858 gMC->Gsatt("ZPRO","SEEN",0);
859 gMC->Gsatt("ZPF1","SEEN",0);
860 gMC->Gsatt("ZPF2","SEEN",0);
861 gMC->Gsatt("ZPF3","SEEN",0);
862 gMC->Gsatt("ZPF4","SEEN",0);
863 gMC->Gsatt("ZPG1","SEEN",0);
864 gMC->Gsatt("ZPG2","SEEN",0);
865 gMC->Gsatt("ZPG3","SEEN",0);
866 gMC->Gsatt("ZPG4","SEEN",0);
867 gMC->Gsatt("ZPTX","SEEN",0);
868 gMC->Gsatt("ZP1 ","COLO",6);
869 gMC->Gsatt("ZP1 ","SEEN",1);
870 gMC->Gsatt("ZPSL","SEEN",0);
871 gMC->Gsatt("ZPST","SEEN",0);
872 gMC->Gsatt("ZEM ","COLO",7);
873 gMC->Gsatt("ZEM ","SEEN",1);
874 gMC->Gsatt("ZEMF","SEEN",0);
875 gMC->Gsatt("ZETR","SEEN",0);
876 gMC->Gsatt("ZEL0","SEEN",0);
877 gMC->Gsatt("ZEL1","SEEN",0);
878 gMC->Gsatt("ZEL2","SEEN",0);
879 gMC->Gsatt("ZEV0","SEEN",0);
880 gMC->Gsatt("ZEV1","SEEN",0);
881 gMC->Gsatt("ZES0","SEEN",0);
882 gMC->Gsatt("ZES1","SEEN",0);
885 gMC->Gdopt("hide", "on");
886 gMC->Gdopt("shad", "on");
887 gMC->Gsatt("*", "fill", 7);
888 gMC->SetClipBox(".");
889 gMC->SetClipBox("*", 0, 100, -100, 100, 12000, 16000);
891 gMC->Gdraw("alic", 40, 30, 0, 488, 220, .07, .07);
892 gMC->Gdhead(1111, "Zero Degree Calorimeter Version 1");
893 gMC->Gdman(18, 4, "MAN");
896 //_____________________________________________________________________________
897 void AliZDCv2::CreateMaterials()
900 // Create Materials for the Zero Degree Calorimeter
903 Int_t *idtmed = fIdtmed->GetArray();
905 Float_t dens, ubuf[1], wmat[2], a[2], z[2], deemax = -1;
908 // --- Store in UBUF r0 for nuclear radius calculation R=r0*A**1/3
910 // --- Tantalum -> ZN passive material
912 AliMaterial(1, "TANT", 180.95, 73., 16.65, .4, 11.9, ubuf, 1);
916 // AliMaterial(1, "TUNG", 183.85, 74., 19.3, .35, 10.3, ubuf, 1);
918 // --- Brass (CuZn) -> ZP passive material
926 AliMixture(2, "BRASS ", a, z, dens, 2, wmat);
936 AliMixture(3, "SIO2 ", a, z, dens, -2, wmat);
940 AliMaterial(5, "LEAD", 207.19, 82., 11.35, .56, 18.5, ubuf, 1);
944 AliMaterial(6, "COPP", 63.54, 29., 8.96, 1.4, 0., ubuf, 1);
946 // --- Iron (energy loss taken into account)
948 AliMaterial(7, "IRON", 55.85, 26., 7.87, 1.76, 0., ubuf, 1);
950 // --- Iron (no energy loss)
952 AliMaterial(8, "IRON", 55.85, 26., 7.87, 1.76, 0., ubuf, 1);
954 // --- Vacuum (no magnetic field)
955 AliMaterial(10, "VOID", 1e-16, 1e-16, 1e-16, 1e16, 1e16, ubuf,0);
957 // --- Vacuum (with magnetic field)
958 AliMaterial(11, "VOIM", 1e-16, 1e-16, 1e-16, 1e16, 1e16, ubuf,0);
960 // --- Air (no magnetic field)
961 AliMaterial(12, "Air $", 14.61, 7.3, .001205, 30420., 67500., ubuf, 0);
963 // --- Definition of tracking media:
965 // --- Tantalum = 1 ;
967 // --- Fibers (SiO2) = 3 ;
968 // --- Fibers (SiO2) = 4 ;
971 // --- Iron (with energy loss) = 7 ;
972 // --- Iron (without energy loss) = 8 ;
973 // --- Vacuum (no field) = 10
974 // --- Vacuum (with field) = 11
975 // --- Air (no field) = 12
978 // --- Tracking media parameters
979 Float_t epsil = .01, stmin=0.01, stemax = 1.;
980 // Int_t isxfld = gAlice->Field()->Integ();
981 Float_t fieldm = 0., tmaxfd = 0.;
982 Int_t ifield = 0, isvolActive = 1, isvol = 0, inofld = 0;
984 AliMedium(1, "ZTANT", 1, isvolActive, inofld, fieldm, tmaxfd, stemax, deemax, epsil, stmin);
985 // AliMedium(1, "ZW", 1, isvolActive, inofld, fieldm, tmaxfd, stemax, deemax, epsil, stmin);
986 AliMedium(2, "ZBRASS",2, isvolActive, inofld, fieldm, tmaxfd, stemax, deemax, epsil, stmin);
987 AliMedium(3, "ZSIO2", 3, isvolActive, inofld, fieldm, tmaxfd, stemax, deemax, epsil, stmin);
988 AliMedium(4, "ZQUAR", 3, isvolActive, inofld, fieldm, tmaxfd, stemax, deemax, epsil, stmin);
989 AliMedium(5, "ZLEAD", 5, isvolActive, inofld, fieldm, tmaxfd, stemax, deemax, epsil, stmin);
990 // AliMedium(6, "ZCOPP", 6, isvolActive, inofld, fieldm, tmaxfd, stemax, deemax, epsil, stmin);
991 // AliMedium(7, "ZIRON", 7, isvolActive, inofld, fieldm, tmaxfd, stemax, deemax, epsil, stmin);
992 AliMedium(6, "ZCOPP", 6, isvol, inofld, fieldm, tmaxfd, stemax, deemax, epsil, stmin);
993 AliMedium(7, "ZIRON", 7, isvol, inofld, fieldm, tmaxfd, stemax, deemax, epsil, stmin);
994 AliMedium(8, "ZIRONN",8, isvol, inofld, fieldm, tmaxfd, stemax, deemax, epsil, stmin);
995 AliMedium(10,"ZVOID",10, isvol, inofld, fieldm, tmaxfd, stemax, deemax, epsil, stmin);
996 AliMedium(12,"ZAIR", 12, 0, inofld, fieldm, tmaxfd, stemax,deemax, epsil, stmin);
1000 AliMedium(11, "ZVOIM", 11, isvol, ifield, fieldm, tmaxfd, stemax, deemax, epsil, stmin);
1002 // Thresholds for showering in the ZDCs
1004 gMC->Gstpar(idtmed[i], "CUTGAM", .001);
1005 gMC->Gstpar(idtmed[i], "CUTELE", .001);
1006 gMC->Gstpar(idtmed[i], "CUTNEU", .01);
1007 gMC->Gstpar(idtmed[i], "CUTHAD", .01);
1009 gMC->Gstpar(idtmed[i], "CUTGAM", .001);
1010 gMC->Gstpar(idtmed[i], "CUTELE", .001);
1011 gMC->Gstpar(idtmed[i], "CUTNEU", .01);
1012 gMC->Gstpar(idtmed[i], "CUTHAD", .01);
1014 gMC->Gstpar(idtmed[i], "CUTGAM", .001);
1015 gMC->Gstpar(idtmed[i], "CUTELE", .001);
1016 gMC->Gstpar(idtmed[i], "CUTNEU", .01);
1017 gMC->Gstpar(idtmed[i], "CUTHAD", .01);
1019 // Avoid too detailed showering in TDI
1021 gMC->Gstpar(idtmed[i], "CUTGAM", .1);
1022 gMC->Gstpar(idtmed[i], "CUTELE", .1);
1023 gMC->Gstpar(idtmed[i], "CUTNEU", 1.);
1024 gMC->Gstpar(idtmed[i], "CUTHAD", 1.);
1026 // Avoid too detailed showering along the beam line
1027 i = 7; //iron with energy loss (ZIRON)
1028 gMC->Gstpar(idtmed[i], "CUTGAM", .1);
1029 gMC->Gstpar(idtmed[i], "CUTELE", .1);
1030 gMC->Gstpar(idtmed[i], "CUTNEU", 1.);
1031 gMC->Gstpar(idtmed[i], "CUTHAD", 1.);
1033 // Avoid too detailed showering along the beam line
1034 i = 8; //iron with energy loss (ZIRONN)
1035 gMC->Gstpar(idtmed[i], "CUTGAM", .1);
1036 gMC->Gstpar(idtmed[i], "CUTELE", .1);
1037 gMC->Gstpar(idtmed[i], "CUTNEU", 1.);
1038 gMC->Gstpar(idtmed[i], "CUTHAD", 1.);
1040 // Avoid interaction in fibers (only energy loss allowed)
1041 i = 3; //fibers (ZSI02)
1042 gMC->Gstpar(idtmed[i], "DCAY", 0.);
1043 gMC->Gstpar(idtmed[i], "MULS", 0.);
1044 gMC->Gstpar(idtmed[i], "PFIS", 0.);
1045 gMC->Gstpar(idtmed[i], "MUNU", 0.);
1046 gMC->Gstpar(idtmed[i], "LOSS", 1.);
1047 gMC->Gstpar(idtmed[i], "PHOT", 0.);
1048 gMC->Gstpar(idtmed[i], "COMP", 0.);
1049 gMC->Gstpar(idtmed[i], "PAIR", 0.);
1050 gMC->Gstpar(idtmed[i], "BREM", 0.);
1051 gMC->Gstpar(idtmed[i], "DRAY", 0.);
1052 gMC->Gstpar(idtmed[i], "ANNI", 0.);
1053 gMC->Gstpar(idtmed[i], "HADR", 0.);
1054 i = 4; //fibers (ZQUAR)
1055 gMC->Gstpar(idtmed[i], "DCAY", 0.);
1056 gMC->Gstpar(idtmed[i], "MULS", 0.);
1057 gMC->Gstpar(idtmed[i], "PFIS", 0.);
1058 gMC->Gstpar(idtmed[i], "MUNU", 0.);
1059 gMC->Gstpar(idtmed[i], "LOSS", 1.);
1060 gMC->Gstpar(idtmed[i], "PHOT", 0.);
1061 gMC->Gstpar(idtmed[i], "COMP", 0.);
1062 gMC->Gstpar(idtmed[i], "PAIR", 0.);
1063 gMC->Gstpar(idtmed[i], "BREM", 0.);
1064 gMC->Gstpar(idtmed[i], "DRAY", 0.);
1065 gMC->Gstpar(idtmed[i], "ANNI", 0.);
1066 gMC->Gstpar(idtmed[i], "HADR", 0.);
1068 // Avoid interaction in void
1069 i = 11; //void with field
1070 gMC->Gstpar(idtmed[i], "DCAY", 0.);
1071 gMC->Gstpar(idtmed[i], "MULS", 0.);
1072 gMC->Gstpar(idtmed[i], "PFIS", 0.);
1073 gMC->Gstpar(idtmed[i], "MUNU", 0.);
1074 gMC->Gstpar(idtmed[i], "LOSS", 0.);
1075 gMC->Gstpar(idtmed[i], "PHOT", 0.);
1076 gMC->Gstpar(idtmed[i], "COMP", 0.);
1077 gMC->Gstpar(idtmed[i], "PAIR", 0.);
1078 gMC->Gstpar(idtmed[i], "BREM", 0.);
1079 gMC->Gstpar(idtmed[i], "DRAY", 0.);
1080 gMC->Gstpar(idtmed[i], "ANNI", 0.);
1081 gMC->Gstpar(idtmed[i], "HADR", 0.);
1084 fMedSensZN = idtmed[1]; // Sensitive volume: ZN passive material
1085 fMedSensZP = idtmed[2]; // Sensitive volume: ZP passive material
1086 fMedSensF1 = idtmed[3]; // Sensitive volume: fibres type 1
1087 fMedSensF2 = idtmed[4]; // Sensitive volume: fibres type 2
1088 fMedSensZEM = idtmed[5]; // Sensitive volume: ZEM passive material
1089 // fMedSensTDI = idtmed[6]; // Sensitive volume: TDI Cu shield
1090 // fMedSensPI = idtmed[7]; // Sensitive volume: beam pipes
1091 fMedSensGR = idtmed[12]; // Sensitive volume: air into the grooves
1094 //_____________________________________________________________________________
1095 void AliZDCv2::Init()
1100 //_____________________________________________________________________________
1101 void AliZDCv2::InitTables()
1105 char *lightfName1,*lightfName2,*lightfName3,*lightfName4,
1106 *lightfName5,*lightfName6,*lightfName7,*lightfName8;
1107 FILE *fp1, *fp2, *fp3, *fp4, *fp5, *fp6, *fp7, *fp8;
1109 // --- Reading light tables for ZN
1110 lightfName1 = gSystem->ExpandPathName("$ALICE/$ALICE_LEVEL/ZDC/light22620362207s");
1111 if((fp1 = fopen(lightfName1,"r")) == NULL){
1112 printf("Cannot open file fp1 \n");
1115 lightfName2 = gSystem->ExpandPathName("$ALICE/$ALICE_LEVEL/ZDC/light22620362208s");
1116 if((fp2 = fopen(lightfName2,"r")) == NULL){
1117 printf("Cannot open file fp2 \n");
1120 lightfName3 = gSystem->ExpandPathName("$ALICE/$ALICE_LEVEL/ZDC/light22620362209s");
1121 if((fp3 = fopen(lightfName3,"r")) == NULL){
1122 printf("Cannot open file fp3 \n");
1125 lightfName4 = gSystem->ExpandPathName("$ALICE/$ALICE_LEVEL/ZDC/light22620362210s");
1126 if((fp4 = fopen(lightfName4,"r")) == NULL){
1127 printf("Cannot open file fp4 \n");
1131 for(k=0; k<fNalfan; k++){
1132 for(j=0; j<fNben; j++){
1133 fscanf(fp1,"%f",&fTablen[0][k][j]);
1134 fscanf(fp2,"%f",&fTablen[1][k][j]);
1135 fscanf(fp3,"%f",&fTablen[2][k][j]);
1136 fscanf(fp4,"%f",&fTablen[3][k][j]);
1144 // --- Reading light tables for ZP and ZEM
1145 lightfName5 = gSystem->ExpandPathName("$ALICE/$ALICE_LEVEL/ZDC/light22620552207s");
1146 if((fp5 = fopen(lightfName5,"r")) == NULL){
1147 printf("Cannot open file fp5 \n");
1150 lightfName6 = gSystem->ExpandPathName("$ALICE/$ALICE_LEVEL/ZDC/light22620552208s");
1151 if((fp6 = fopen(lightfName6,"r")) == NULL){
1152 printf("Cannot open file fp6 \n");
1155 lightfName7 = gSystem->ExpandPathName("$ALICE/$ALICE_LEVEL/ZDC/light22620552209s");
1156 if((fp7 = fopen(lightfName7,"r")) == NULL){
1157 printf("Cannot open file fp7 \n");
1160 lightfName8 = gSystem->ExpandPathName("$ALICE/$ALICE_LEVEL/ZDC/light22620552210s");
1161 if((fp8 = fopen(lightfName8,"r")) == NULL){
1162 printf("Cannot open file fp8 \n");
1166 for(k=0; k<fNalfap; k++){
1167 for(j=0; j<fNbep; j++){
1168 fscanf(fp5,"%f",&fTablep[0][k][j]);
1169 fscanf(fp6,"%f",&fTablep[1][k][j]);
1170 fscanf(fp7,"%f",&fTablep[2][k][j]);
1171 fscanf(fp8,"%f",&fTablep[3][k][j]);
1180 //_____________________________________________________________________________
1181 Int_t AliZDCv2::Digitize(Int_t Det, Int_t Quad, Int_t Light)
1183 // Evaluation of the ADC channel corresponding to the light yield Light
1186 printf("\n Digitize -> Det = %d, Quad = %d, Light = %d\n", Det, Quad, Light);
1189 // Parameters for conversion of light yield in ADC channels
1190 Float_t fPMGain[3][5]; // PM gain
1191 Float_t fADCRes; // ADC conversion factor
1196 fPMGain[i][j] = 100000.;
1199 fADCRes = 0.00000064; // ADC Resolution: 250 fC/ADCch
1201 Int_t ADCch = Int_t(Light*fPMGain[Det-1][Quad]*fADCRes);
1207 //_____________________________________________________________________________
1208 void AliZDCv2::SDigits2Digits()
1210 Hits2Digits(gAlice->GetNtrack());
1213 //_____________________________________________________________________________
1214 void AliZDCv2::Hits2Digits(Int_t ntracks)
1216 AliZDCDigit *newdigit;
1219 Int_t PMCZN = 0, PMCZP = 0, PMQZN[4], PMQZP[4], PMZEM = 0;
1228 for(itrack=0; itrack<ntracks; itrack++){
1229 gAlice->ResetHits();
1230 gAlice->TreeH()->GetEvent(itrack);
1231 for(i=0; i<fHits->GetEntries(); i++){
1232 hit = (AliZDCHit*)fHits->At(i);
1233 Int_t det = hit->GetVolume(0);
1234 Int_t quad = hit->GetVolume(1);
1235 Int_t lightQ = Int_t(hit->GetLightPMQ());
1236 Int_t lightC = Int_t(hit->GetLightPMC());
1238 printf(" \n itrack = %d, fNhits = %d, det = %d, quad = %d,"
1239 "lightC = %d lightQ = %d\n", itrack, fNhits, det, quad, lightC, lightQ);
1242 PMCZN = PMCZN + lightC;
1243 PMQZN[quad-1] = PMQZN[quad-1] + lightQ;
1247 PMCZP = PMCZP + lightC;
1248 PMQZP[quad-1] = PMQZP[quad-1] + lightQ;
1252 PMZEM = PMZEM + lightC;
1259 printf("\n PMCZN = %d, PMQZN[0] = %d, PMQZN[1] = %d, PMQZN[2] = %d, PMQZN[3] = %d\n"
1260 , PMCZN, PMQZN[0], PMQZN[1], PMQZN[2], PMQZN[3]);
1261 printf("\n PMCZP = %d, PMQZP[0] = %d, PMQZP[1] = %d, PMQZP[2] = %d, PMQZP[3] = %d\n"
1262 , PMCZP, PMQZP[0], PMQZP[1], PMQZP[2], PMQZP[3]);
1263 printf("\n PMZEM = %d\n", PMZEM);
1266 // ------------------------------------ Hits2Digits
1268 newdigit = new AliZDCDigit(1, 0, Digitize(1, 0, PMCZN));
1269 new((*fDigits)[fNdigits]) AliZDCDigit(*newdigit);
1275 newdigit = new AliZDCDigit(1, j+1, Digitize(1, j+1, PMQZN[j]));
1276 new((*fDigits)[fNdigits]) AliZDCDigit(*newdigit);
1282 newdigit = new AliZDCDigit(2, 0, Digitize(2, 0, PMCZP));
1283 new((*fDigits)[fNdigits]) AliZDCDigit(*newdigit);
1289 newdigit = new AliZDCDigit(2, k+1, Digitize(2, k+1, PMQZP[k]));
1290 new((*fDigits)[fNdigits]) AliZDCDigit(*newdigit);
1296 newdigit = new AliZDCDigit(3, 0, Digitize(3, 0, PMZEM));
1297 new((*fDigits)[fNdigits]) AliZDCDigit(*newdigit);
1302 gAlice->TreeD()->Fill();
1303 gAlice->TreeD()->Write(0,TObject::kOverwrite);
1306 // printf("\n Event Digits -----------------------------------------------------\n");
1307 // fDigits->Print("");
1311 //_____________________________________________________________________________
1312 void AliZDCv2::MakeBranch(Option_t *opt, char *file)
1315 // Create a new branch in the current Root Tree
1318 AliDetector::MakeBranch(opt);
1320 Char_t branchname[10];
1321 sprintf(branchname,"%s",GetName());
1322 const char *cD = strstr(opt,"D");
1324 if (gAlice->TreeD() && cD) {
1326 // Creation of the digits from hits
1328 if(fDigits!=0) fDigits->Clear();
1329 else fDigits = new TClonesArray ("AliZDCDigit",1000);
1330 char branchname[10];
1331 sprintf(branchname,"%s",GetName());
1332 gAlice->MakeBranchInTree(gAlice->TreeD(),
1333 branchname, &fDigits, fBufferSize, file) ;
1334 printf("* AliZDCv2::MakeBranch * Making Branch %s for digits\n\n",branchname);
1338 //_____________________________________________________________________________
1339 void AliZDCv2::StepManager()
1342 // Routine called at every step in the Zero Degree Calorimeters
1345 Int_t j, vol[2], ibeta=0, ialfa, ibe, nphe;
1346 Float_t x[3], xdet[3], destep, hits[10], m, ekin, um[3], ud[3], be, radius, out;
1347 TLorentzVector s, p;
1350 for (j=0;j<10;j++) hits[j]=0;
1352 if((gMC->GetMedium() == fMedSensZN) || (gMC->GetMedium() == fMedSensZP) ||
1353 (gMC->GetMedium() == fMedSensGR) || (gMC->GetMedium() == fMedSensF1) ||
1354 (gMC->GetMedium() == fMedSensF2) || (gMC->GetMedium() == fMedSensZEM)){
1355 // (gMC->GetMedium() == fMedSensPI) || (gMC->GetMedium() == fMedSensTDI)){
1357 // If particle interacts with beam pipe -> return
1358 // if((gMC->GetMedium() == fMedSensPI) || (gMC->GetMedium() == fMedSensTDI)){
1359 // If option NoShower is set -> StopTrack
1360 // if(fNoShower==1) {
1361 // if(gMC->GetMedium() == fMedSensPI) {
1362 // knamed = gMC->CurrentVolName();
1363 // if((!strncmp(knamed,"MQ",2)) || (!strncmp(knamed,"YM",2))) fpLostIT += 1;
1364 // if((!strncmp(knamed,"MD1",3))|| (!strncmp(knamed,"YD1",2))) fpLostD1 += 1;
1366 // if(gMC->GetMedium() == fMedSensTDI) fpLostTDI += 1;
1367 // gMC->StopTrack();
1368 // printf("\n # of p lost in Inner Triplet = %d\n",fpLostIT);
1369 // printf("\n # of p lost in D1 = %d\n",fpLostD1);
1370 // printf("\n # of p lost in TDI = %d\n",fpLostTDI);
1375 //Particle coordinates
1376 gMC->TrackPosition(s);
1377 for(j=0; j<=2; j++){
1384 // Determine in which ZDC the particle is
1385 knamed = gMC->CurrentVolName();
1386 if(!strncmp(knamed,"ZN",2))vol[0]=1;
1387 if(!strncmp(knamed,"ZP",2))vol[0]=2;
1388 if(!strncmp(knamed,"ZE",2))vol[0]=3;
1390 // Determine in which quadrant the particle is
1394 xdet[0] = x[0]-fPosZN[0];
1395 xdet[1] = x[1]-fPosZN[1];
1396 if((xdet[0]<=0.) && (xdet[1]>=0.)) vol[1]=1;
1397 if((xdet[0]>0.) && (xdet[1]>0.)) vol[1]=2;
1398 if((xdet[0]<0.) && (xdet[1]<0.)) vol[1]=3;
1399 if((xdet[0]>0.) && (xdet[1]<0.)) vol[1]=4;
1404 xdet[0] = x[0]-fPosZP[0];
1405 xdet[1] = x[1]-fPosZP[1];
1406 if(xdet[0]>fDimZP[0])xdet[0]=fDimZP[0]-0.01;
1407 if(xdet[0]<-fDimZP[0])xdet[0]=-fDimZP[0]+0.01;
1408 Float_t xqZP = xdet[0]/(fDimZP[0]/2);
1409 for(int i=1; i<=4; i++){
1410 if(xqZP>=(i-3) && xqZP<(i-2)){
1417 //ZEM has only 1 quadrant
1420 xdet[0] = x[0]-fPosZEM[0];
1421 xdet[1] = x[1]-fPosZEM[1];
1424 // Store impact point and kinetic energy of the ENTERING particle
1426 // if(Curtrack==Prim){
1427 if(gMC->IsTrackEntering()){
1429 gMC->TrackMomentum(p);
1431 // Impact point on ZDC
1439 // Int_t PcID = gMC->TrackPid();
1440 // printf("Pc ID -> %d\n",PcID);
1441 AddHit(gAlice->CurrentTrack(), vol, hits);
1446 // printf("\n # of detected p = %d\n",fpDetected);
1452 // Charged particles -> Energy loss
1453 if((destep=gMC->Edep())){
1454 if(gMC->IsTrackStop()){
1455 gMC->TrackMomentum(p);
1456 m = gMC->TrackMass();
1461 AddHit(gAlice->CurrentTrack(), vol, hits);
1467 AddHit(gAlice->CurrentTrack(), vol, hits);
1469 // printf(" Dep. E = %f \n",hits[9]);
1471 }// NB -> Questa parentesi (chiude il primo IF) io la sposterei al fondo!???
1474 // *** Light production in fibres
1475 if((gMC->GetMedium() == fMedSensF1) || (gMC->GetMedium() == fMedSensF2)){
1477 //Select charged particles
1478 if((destep=gMC->Edep())){
1480 // Particle velocity
1481 gMC->TrackMomentum(p);
1482 Float_t ptot=TMath::Sqrt(p[0]*p[0]+p[1]*p[1]+p[2]*p[2]);
1483 Float_t beta = ptot/p[3];
1484 if(beta<0.67) return;
1485 if((beta>=0.67) && (beta<=0.75)) ibeta = 0;
1486 if((beta>0.75) && (beta<=0.85)) ibeta = 1;
1487 if((beta>0.85) && (beta<=0.95)) ibeta = 2;
1488 if(beta>0.95) ibeta = 3;
1490 // Angle between particle trajectory and fibre axis
1491 // 1 -> Momentum directions
1495 gMC->Gmtod(um,ud,2);
1496 // 2 -> Angle < limit angle
1497 Double_t alfar = TMath::ACos(ud[2]);
1498 Double_t alfa = alfar*kRaddeg;
1499 if(alfa>=110.) return;
1500 ialfa = Int_t(1.+alfa/2.);
1502 // Distance between particle trajectory and fibre axis
1503 gMC->TrackPosition(s);
1504 for(j=0; j<=2; j++){
1507 gMC->Gmtod(x,xdet,1);
1508 if(TMath::Abs(ud[0])>0.00001){
1509 Float_t dcoeff = ud[1]/ud[0];
1510 be = TMath::Abs((xdet[1]-dcoeff*xdet[0])/TMath::Sqrt(dcoeff*dcoeff+1.));
1513 be = TMath::Abs(ud[0]);
1516 if((vol[0]==1)) radius = fFibZN[1];
1517 if((vol[0]==2)) radius = fFibZP[1];
1518 ibe = Int_t(be*1000.+1);
1520 //Looking into the light tables
1521 Float_t charge = gMC->TrackCharge();
1525 if(ibe>fNben) ibe=fNben;
1526 out = charge*charge*fTablen[ibeta][ialfa][ibe];
1527 nphe = gRandom->Poisson(out);
1528 // printf("ZN --- ibeta = %d, ialfa = %d, ibe = %d"
1529 // " -> out = %f, nphe = %d\n", ibeta, ialfa, ibe, out, nphe);
1530 if(gMC->GetMedium() == fMedSensF1){
1531 hits[7] = nphe; //fLightPMQ
1534 AddHit(gAlice->CurrentTrack(), vol, hits);
1538 hits[8] = nphe; //fLightPMC
1540 AddHit(gAlice->CurrentTrack(), vol, hits);
1546 if(ibe>fNbep) ibe=fNbep;
1547 out = charge*charge*fTablep[ibeta][ialfa][ibe];
1548 nphe = gRandom->Poisson(out);
1549 // printf("ZP --- ibeta = %d, ialfa = %d, ibe = %d"
1550 // " -> out = %f, nphe = %d\n", ibeta, ialfa, ibe, out, nphe);
1551 if(gMC->GetMedium() == fMedSensF1){
1552 hits[7] = nphe; //fLightPMQ
1555 AddHit(gAlice->CurrentTrack(), vol, hits);
1559 hits[8] = nphe; //fLightPMC
1561 AddHit(gAlice->CurrentTrack(), vol, hits);
1566 if(ibe>fNbep) ibe=fNbep;
1567 out = charge*charge*fTablep[ibeta][ialfa][ibe];
1568 nphe = gRandom->Poisson(out);
1569 // printf("ZEM --- ibeta = %d, ialfa = %d, ibe = %d"
1570 // " -> out = %f, nphe = %d\n", ibeta, ialfa, ibe, out, nphe);
1572 hits[8] = nphe; //fLightPMC
1574 AddHit(gAlice->CurrentTrack(), vol, hits);