1 /**************************************************************************
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4 * Author: The ALICE Off-line Project. *
5 * Contributors are mentioned in the code where appropriate. *
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18 Revision 1.1 2001/05/14 09:57:39 coppedis
19 A different geometry for the ZDCs
24 ///////////////////////////////////////////////////////////////////////////////
26 // Zero Degree Calorimeter //
27 // This class contains the basic functions for the ZDC //
28 // Functions specific to one particular geometry are //
29 // contained in the derived classes //
31 ///////////////////////////////////////////////////////////////////////////////
33 // --- Standard libraries
45 // --- AliRoot classes
47 #include "AliZDCHit.h"
48 #include "AliZDCDigit.h"
50 #include "AliDetector.h"
53 #include "AliCallf77.h"
56 #include "TLorentzVector.h"
62 ///////////////////////////////////////////////////////////////////////////////
64 // Zero Degree Calorimeter version 2 //
66 ///////////////////////////////////////////////////////////////////////////////
68 //_____________________________________________________________________________
69 AliZDCv2::AliZDCv2() : AliZDC()
72 // Default constructor for Zero Degree Calorimeter
85 //_____________________________________________________________________________
86 AliZDCv2::AliZDCv2(const char *name, const char *title)
90 // Standard constructor for Zero Degree Calorimeter
93 // Check that DIPO, ABSO, DIPO and SHIL is there (otherwise tracking is wrong!!!)
95 AliModule* PIPE=gAlice->GetModule("PIPE");
96 AliModule* ABSO=gAlice->GetModule("ABSO");
97 AliModule* DIPO=gAlice->GetModule("DIPO");
98 AliModule* SHIL=gAlice->GetModule("SHIL");
99 if((!PIPE) || (!ABSO) || (!DIPO) || (!SHIL)) {
100 Error("Constructor","ZDC needs PIPE, ABSO, DIPO and SHIL!!!\n");
114 // Parameters for light tables
115 fNalfan = 90; // Number of Alfa (neutrons)
116 fNalfap = 90; // Number of Alfa (protons)
117 fNben = 18; // Number of beta (neutrons)
118 fNbep = 28; // Number of beta (protons)
120 for(ip=0; ip<4; ip++){
121 for(kp=0; kp<fNalfap; kp++){
122 for(jp=0; jp<fNbep; jp++){
123 fTablep[ip][kp][jp] = 0;
128 for(in=0; in<4; in++){
129 for(kn=0; kn<fNalfan; kn++){
130 for(jn=0; jn<fNben; jn++){
131 fTablen[in][kn][jn] = 0;
136 // Parameters for hadronic calorimeters geometry
153 // Parameters for EM calorimeter geometry
159 fDigits = new TClonesArray("AliZDCDigit",1000);
162 //_____________________________________________________________________________
163 void AliZDCv2::CreateGeometry()
166 // Create the geometry for the Zero Degree Calorimeter version 1
167 //* Initialize COMMON block ZDC_CGEOM
174 //_____________________________________________________________________________
175 void AliZDCv2::CreateBeamLine()
178 Float_t zq, zd1, zd2;
179 Float_t conpar[9], tubpar[3], tubspar[5], boxpar[3];
182 Int_t *idtmed = fIdtmed->GetArray();
184 // -- Mother of the ZDCs (Vacuum PCON)
195 gMC->Gsvolu("ZDC ", "PCON", idtmed[11], conpar, 9);
196 gMC->Gspos("ZDC ", 1, "ALIC", 0., 0., 0., 0, "ONLY");
198 // -- FIRST SECTION OF THE BEAM PIPE (from compensator dipole to
199 // the beginning of D1)
205 tubpar[2] = 3838.3/2.;
206 gMC->Gsvolu("QT01", "TUBE", idtmed[7], tubpar, 3);
207 gMC->Gspos("QT01", 1, "ZDC ", 0., 0., tubpar[2] + zd1, 0, "ONLY");
209 //-- SECOND SECTION OF THE BEAM PIPE (from the end of D1 to the
212 //-- FROM MAGNETIC BEGINNING OF D1 TO MAGNETIC END OF D1 + 13.5 cm
213 //-- Cylindrical pipe (r = 3.47) + conical flare
215 // -> Beginning of D1
219 tubpar[1] = 3.47+0.2;
220 tubpar[2] = 958.5/2.;
221 gMC->Gsvolu("QT02", "TUBE", idtmed[7], tubpar, 3);
222 gMC->Gspos("QT02", 1, "ZDC ", 0., 0., tubpar[2] + zd1, 0, "ONLY");
231 gMC->Gsvolu("QC01", "CONE", idtmed[7], conpar, 5);
232 gMC->Gspos("QC01", 1, "ZDC ", 0., 0., conpar[0] + zd1, 0, "ONLY");
239 gMC->Gsvolu("QT03", "TUBE", idtmed[7], tubpar, 3);
240 gMC->Gspos("QT03", 1, "ZDC ", 0., 0., tubpar[2] + zd1, 0, "ONLY");
247 gMC->Gsvolu("QT04", "TUBE", idtmed[7], tubpar, 3);
248 gMC->Gspos("QT04", 1, "ZDC ", 0., 0., tubpar[2] + zd1, 0, "ONLY");
250 zd1 += tubpar[2] * 2.;
255 gMC->Gsvolu("QT05", "TUBE", idtmed[7], tubpar, 3);
256 gMC->Gspos("QT05", 1, "ZDC ", 0., 0., tubpar[0] + zd1, 0, "ONLY");
258 zd1 += tubpar[2] * 2.;
263 gMC->Gsvolu("QT06", "TUBE", idtmed[7], tubpar, 3);
264 gMC->Gspos("QT06", 1, "ZDC ", 0., 0., tubpar[2] + zd1, 0, "ONLY");
266 zd1 += tubpar[2] * 2.;
273 gMC->Gsvolu("QC02", "CONE", idtmed[7], conpar, 5);
274 gMC->Gspos("QC02", 1, "ZDC ", 0., 0., conpar[0] + zd1, 0, "ONLY");
276 zd1 += conpar[0] * 2.;
281 gMC->Gsvolu("QT07", "TUBE", idtmed[7], tubpar, 3);
282 gMC->Gspos("QT07", 1, "ZDC ", 0., 0., tubpar[2] + zd1, 0, "ONLY");
284 zd1 += tubpar[2] * 2.;
291 gMC->Gsvolu("QC03", "CONE", idtmed[7], conpar, 5);
292 gMC->Gspos("QC03", 1, "ZDC ", 0., 0., conpar[0] + zd1, 0, "ONLY");
294 zd1 += conpar[0] * 2.;
298 tubpar[2] = 205.8/2.;
299 gMC->Gsvolu("QT08", "TUBE", idtmed[7], tubpar, 3);
300 gMC->Gspos("QT08", 1, "ZDC ", 0., 0., tubpar[2] + zd1, 0, "ONLY");
302 zd1 += tubpar[2] * 2.;
306 // QT09 is 10 cm longer to accomodate TDI
307 tubpar[2] = 515.4/2.;
308 gMC->Gsvolu("QT09", "TUBE", idtmed[7], tubpar, 3);
309 gMC->Gspos("QT09", 1, "ZDC ", 0., 0., tubpar[2] + zd1, 0, "ONLY");
311 // --- Insert TDI (inside ZDC volume)
316 gMC->Gsvolu("QTD1", "BOX ", idtmed[7], boxpar, 3);
317 gMC->Gspos("QTD1", 1, "ZDC ", 0., 10.6, tubpar[2] + zd1 + 56.3, 0, "ONLY");
318 gMC->Gspos("QTD1", 2, "ZDC ", 0., -10.6, tubpar[2] + zd1 + 56.3, 0, "ONLY");
323 gMC->Gsvolu("QTD2", "BOX ", idtmed[6], boxpar, 3);
324 gMC->Gspos("QTD2", 1, "ZDC ", 5.6+boxpar[0], 0., tubpar[2] + zd1 + 56.3, 0, "ONLY");
328 tubspar[2] = 400./2.;
329 tubspar[3] = 180.-62.5;
330 tubspar[4] = 180.+62.5;
331 gMC->Gsvolu("QTD3", "TUBS", idtmed[6], tubspar, 5);
332 gMC->Gspos("QTD3", 1, "ZDC ", -3., 0., tubpar[2] + zd1 + 56.3, 0, "ONLY");
334 zd1 += tubpar[2] * 2.;
338 // QT10 is 10 cm shorter
340 gMC->Gsvolu("QT10", "TUBE", idtmed[7], tubpar, 3);
341 gMC->Gspos("QT10", 1, "ZDC ", 0., 0., tubpar[2] + zd1, 0, "ONLY");
343 zd1 += tubpar[2] * 2.;
347 tubpar[2] = 778.5/2.;
348 gMC->Gsvolu("QT11", "TUBE", idtmed[7], tubpar, 3);
349 gMC->Gspos("QT11", 1, "ZDC ", 0., 0., tubpar[2] + zd1, 0, "ONLY");
351 zd1 += tubpar[2] * 2.;
353 conpar[0] = 14.18/2.;
358 gMC->Gsvolu("QC04", "CONE", idtmed[7], conpar, 5);
359 gMC->Gspos("QC04", 1, "ZDC ", 0., 0., conpar[0] + zd1, 0, "ONLY");
361 zd1 += conpar[0] * 2.;
366 gMC->Gsvolu("QT12", "TUBE", idtmed[7], tubpar, 3);
367 gMC->Gspos("QT12", 1, "ZDC ", 0., 0., tubpar[2] + zd1, 0, "ONLY");
369 zd1 += tubpar[2] * 2.;
371 conpar[0] = 36.86/2.;
376 gMC->Gsvolu("QC05", "CONE", idtmed[7], conpar, 5);
377 gMC->Gspos("QC05", 1, "ZDC ", 0., 0., conpar[0] + zd1, 0, "ONLY");
379 zd1 += conpar[0] * 2.;
383 tubpar[2] = 927.3/2.;
384 gMC->Gsvolu("QT13", "TUBE", idtmed[7], tubpar, 3);
385 gMC->Gspos("QT13", 1, "ZDC ", 0., 0., tubpar[2] + zd1, 0, "ONLY");
387 zd1 += tubpar[2] * 2.;
392 gMC->Gsvolu("QT14", "TUBE", idtmed[8], tubpar, 3);
393 gMC->Gspos("QT14", 1, "ZDC ", 0., 0., tubpar[2] + zd1, 0, "ONLY");
395 zd1 += tubpar[2] * 2.;
400 gMC->Gsvolu("QT15", "TUBE", idtmed[11], tubpar, 3);
402 //-- Position QT15 inside QT14
403 gMC->Gspos("QT15", 1, "QT14", -7.7, 0., 0., 0, "ONLY");
408 gMC->Gsvolu("QT16", "TUBE", idtmed[11], tubpar, 3);
410 //-- Position QT16 inside QT14
411 gMC->Gspos("QT16", 1, "QT14", 7.7, 0., 0., 0, "ONLY");
414 //-- BEAM PIPE BETWEEN END OF CONICAL PIPE AND BEGINNING OF D2
418 tubpar[2] = 680.8/2.;
419 gMC->Gsvolu("QT17", "TUBE", idtmed[7], tubpar, 3);
423 tubpar[2] = 680.8/2.;
424 gMC->Gsvolu("QT18", "TUBE", idtmed[7], tubpar, 3);
428 Float_t angle = 0.143*kDegrad;
430 AliMatrix(im1, 90.-0.143, 0., 90., 90., 0.143, 180.);
431 gMC->Gspos("QT17", 1, "ZDC ", TMath::Sin(angle) * 680.8/ 2. - 9.4,
432 0., tubpar[2] + zd1, im1, "ONLY");
434 AliMatrix(im2, 90.+0.143, 0., 90., 90., 0.143, 0.);
435 gMC->Gspos("QT18", 1, "ZDC ", 9.7 - TMath::Sin(angle) * 680.8 / 2.,
436 0., tubpar[2] + zd1, im2, "ONLY");
438 // -- BEAM PIPE ON THE OTHER SIDE OF I.P. TILL THE EM ZDC
440 Float_t zb = -800.; // End of QBPM (from AliPIPEv0.cxx)
443 tubpar[2] = (1050+zb)/2.; // From the end of QBPM to z=1050.
444 gMC->Gsvolu("QT19", "TUBE", idtmed[7], tubpar, 3);
445 gMC->Gspos("QT19", 1, "ZDC ", 0., 0., zb - tubpar[2], 0, "ONLY");
448 // -- END OF BEAM PIPE VOLUME DEFINITION.
449 // ----------------------------------------------------------------
451 // -- MAGNET DEFINITION -> LHC OPTICS 6.2 (preliminary version)
453 // ----------------------------------------------------------------
454 // Replaced by the muon dipole
455 // ----------------------------------------------------------------
456 // -- COMPENSATOR DIPOLE (MBXW)
457 // GAP (VACUUM WITH MAGNETIC FIELD)
461 // tubpar[2] = 340./2.;
462 // gMC->Gsvolu("MBXW", "TUBE", idtmed[11], tubpar, 3);
463 // gMC->Gspos("MBXW", 1, "ZDC ", 0., 0., tubpar[2] + 805., 0, "ONLY");
465 // -- YOKE (IRON WITHOUT MAGNETIC FIELD)
469 // tubpar[2] = 340./2.;
470 // gMC->Gsvolu("YMBX", "TUBE", idtmed[7], tubpar, 3);
471 // gMC->Gspos("YMBX", 1, "ZDC ", 0., 0., tubpar[2] + 805., 0, "ONLY");
473 // ----------------------------------------------------------------
474 // Replaced by the second dipole
475 // ----------------------------------------------------------------
476 // -- COMPENSATOR DIPOLE (MCBWA)
477 // GAP (VACUUM WITH MAGNETIC FIELD)
481 // tubpar[2] = 170./2.;
482 // gMC->Gsvolu("MCBW", "TUBE", idtmed[11], tubpar, 3);
483 // gMC->Gspos("MCBW", 1, "ZDC ", 0., 0., tubpar[2] + 1921.6, 0, "ONLY");
485 // -- YOKE (IRON WITHOUT MAGNETIC FIELD)
489 // tubpar[2] = 170./2.;
490 // gMC->Gsvolu("YMCB", "TUBE", idtmed[7], tubpar, 3);
491 // gMC->Gspos("YMCB", 1, "ZDC ", 0., 0., tubpar[2] + 1921.6, 0, "ONLY");
497 // -- DEFINE MQXL AND MQX QUADRUPOLE ELEMENT
500 // -- GAP (VACUUM WITH MAGNETIC FIELD)
505 gMC->Gsvolu("MQXL", "TUBE", idtmed[11], tubpar, 3);
512 gMC->Gsvolu("YMQL", "TUBE", idtmed[7], tubpar, 3);
514 gMC->Gspos("MQXL", 1, "ZDC ", 0., 0., tubpar[2] + zq, 0, "ONLY");
515 gMC->Gspos("YMQL", 1, "ZDC ", 0., 0., tubpar[2] + zq, 0, "ONLY");
517 gMC->Gspos("MQXL", 2, "ZDC ", 0., 0., tubpar[2] + zq + 2430., 0, "ONLY");
518 gMC->Gspos("YMQL", 2, "ZDC ", 0., 0., tubpar[2] + zq + 2430., 0, "ONLY");
521 // -- GAP (VACUUM WITH MAGNETIC FIELD)
526 gMC->Gsvolu("MQX ", "TUBE", idtmed[11], tubpar, 3);
533 gMC->Gsvolu("YMQ ", "TUBE", idtmed[7], tubpar, 3);
535 gMC->Gspos("MQX ", 1, "ZDC ", 0., 0., tubpar[2] + zq + 883.5, 0, "ONLY");
536 gMC->Gspos("YMQ ", 1, "ZDC ", 0., 0., tubpar[2] + zq + 883.5, 0, "ONLY");
538 gMC->Gspos("MQX ", 2, "ZDC ", 0., 0., tubpar[2] + zq + 1533.5, 0, "ONLY");
539 gMC->Gspos("YMQ ", 2, "ZDC ", 0., 0., tubpar[2] + zq + 1533.5, 0, "ONLY");
541 // -- SEPARATOR DIPOLE D1
545 // -- GAP (VACUUM WITH MAGNETIC FIELD)
550 gMC->Gsvolu("MD1 ", "TUBE", idtmed[11], tubpar, 3);
552 // -- Insert horizontal Cu plates inside D1
553 // -- (to simulate the vacuum chamber)
555 boxpar[0] = TMath::Sqrt(tubpar[1]*tubpar[1]-(2.98+0.2)*(2.98+0.2));
558 gMC->Gsvolu("MD1V", "BOX ", idtmed[6], boxpar, 3);
559 gMC->Gspos("MD1V", 1, "MD1 ", 0., 2.98+boxpar[1], 0., 0, "ONLY");
560 gMC->Gspos("MD1V", 2, "MD1 ", 0., -2.98-boxpar[1], 0., 0, "ONLY");
567 gMC->Gsvolu("YD1 ", "TUBE", idtmed[7], tubpar, 3);
569 gMC->Gspos("YD1 ", 1, "ZDC ", 0., 0., tubpar[2] + zd1, 0, "ONLY");
570 gMC->Gspos("MD1 ", 1, "YD1 ", 0., 0., 0., 0, "ONLY");
576 // -- GAP (VACUUM WITH MAGNETIC FIELD)
581 gMC->Gsvolu("MD2 ", "TUBE", idtmed[11], tubpar, 3);
588 gMC->Gsvolu("YD2 ", "TUBE", idtmed[7], tubpar, 3);
590 gMC->Gspos("YD2 ", 1, "ZDC ", 0., 0., tubpar[2] + zd2, 0, "ONLY");
592 gMC->Gspos("MD2 ", 1, "YD2 ", -9.4, 0., 0., 0, "ONLY");
593 gMC->Gspos("MD2 ", 2, "YD2 ", 9.4, 0., 0., 0, "ONLY");
595 // -- END OF MAGNET DEFINITION
598 //_____________________________________________________________________________
599 void AliZDCv2::CreateZDC()
602 Float_t DimPb[6], DimVoid[6];
604 Int_t *idtmed = fIdtmed->GetArray();
606 // Parameters for hadronic calorimeters geometry
607 // NB -> parameters used ONLY in CreateZDC()
608 Float_t fDimZN[3] = {3.52, 3.52, 50.}; // Dimensions of neutron detector
609 Float_t fGrvZN[3] = {0.03, 0.03, 50.}; // Grooves for neutron detector
610 Float_t fGrvZP[3] = {0.04, 0.04, 75.}; // Grooves for proton detector
611 Int_t fDivZN[3] = {11, 11, 0}; // Division for neutron detector
612 Int_t fDivZP[3] = {7, 15, 0}; // Division for proton detector
613 Int_t fTowZN[2] = {2, 2}; // Tower for neutron detector
614 Int_t fTowZP[2] = {4, 1}; // Tower for proton detector
616 // Parameters for EM calorimeter geometry
617 // NB -> parameters used ONLY in CreateZDC()
618 Float_t fDimZEMPb = 0.15*(TMath::Sqrt(2.)); // z-dimension of the Pb slice
619 Float_t fDimZEMAir = 0.001; // scotch
620 Float_t fFibRadZEM = 0.0315; // External fiber radius (including cladding)
621 Int_t fDivZEM[3] = {92, 0, 20}; // Divisions for EM detector
622 Float_t fDimZEM0 = 2*fDivZEM[2]*(fDimZEMPb+fDimZEMAir+fFibRadZEM*(TMath::Sqrt(2.)));
623 Float_t fDimZEM[6] = {fDimZEM0, 3.5, 3.5, 45., 0., 0.}; // Dimensions of EM detector
624 Float_t fFibZEM2 = fDimZEM[2]/TMath::Sin(fDimZEM[3]*kDegrad)-fFibRadZEM;
625 Float_t fFibZEM[3] = {0., 0.0275, fFibZEM2}; // Fibers for EM calorimeter
628 //-- Create calorimeters geometry
630 // -------------------------------------------------------------------------------
631 //--> Neutron calorimeter (ZN)
633 gMC->Gsvolu("ZNEU", "BOX ", idtmed[1], fDimZN, 3); // Passive material
634 gMC->Gsvolu("ZNF1", "TUBE", idtmed[3], fFibZN, 3); // Active material
635 gMC->Gsvolu("ZNF2", "TUBE", idtmed[4], fFibZN, 3);
636 gMC->Gsvolu("ZNF3", "TUBE", idtmed[4], fFibZN, 3);
637 gMC->Gsvolu("ZNF4", "TUBE", idtmed[3], fFibZN, 3);
638 gMC->Gsvolu("ZNG1", "BOX ", idtmed[12], fGrvZN, 3); // Empty grooves
639 gMC->Gsvolu("ZNG2", "BOX ", idtmed[12], fGrvZN, 3);
640 gMC->Gsvolu("ZNG3", "BOX ", idtmed[12], fGrvZN, 3);
641 gMC->Gsvolu("ZNG4", "BOX ", idtmed[12], fGrvZN, 3);
643 // Divide ZNEU in towers (for hits purposes)
645 gMC->Gsdvn("ZNTX", "ZNEU", fTowZN[0], 1); // x-tower
646 gMC->Gsdvn("ZN1 ", "ZNTX", fTowZN[1], 2); // y-tower
648 //-- Divide ZN1 in minitowers
649 // fDivZN[0]= NUMBER OF FIBERS PER TOWER ALONG X-AXIS,
650 // fDivZN[1]= NUMBER OF FIBERS PER TOWER ALONG Y-AXIS
651 // (4 fibres per minitower)
653 gMC->Gsdvn("ZNSL", "ZN1 ", fDivZN[1], 2); // Slices
654 gMC->Gsdvn("ZNST", "ZNSL", fDivZN[0], 1); // Sticks
656 // --- Position the empty grooves in the sticks (4 grooves per stick)
657 Float_t dx = fDimZN[0] / fDivZN[0] / 4.;
658 Float_t dy = fDimZN[1] / fDivZN[1] / 4.;
660 gMC->Gspos("ZNG1", 1, "ZNST", 0.-dx, 0.+dy, 0., 0, "ONLY");
661 gMC->Gspos("ZNG2", 1, "ZNST", 0.+dx, 0.+dy, 0., 0, "ONLY");
662 gMC->Gspos("ZNG3", 1, "ZNST", 0.-dx, 0.-dy, 0., 0, "ONLY");
663 gMC->Gspos("ZNG4", 1, "ZNST", 0.+dx, 0.-dy, 0., 0, "ONLY");
665 // --- Position the fibers in the grooves
666 gMC->Gspos("ZNF1", 1, "ZNG1", 0., 0., 0., 0, "ONLY");
667 gMC->Gspos("ZNF2", 1, "ZNG2", 0., 0., 0., 0, "ONLY");
668 gMC->Gspos("ZNF3", 1, "ZNG3", 0., 0., 0., 0, "ONLY");
669 gMC->Gspos("ZNF4", 1, "ZNG4", 0., 0., 0., 0, "ONLY");
671 // --- Position the neutron calorimeter in ZDC
672 gMC->Gspos("ZNEU", 1, "ZDC ", fPosZN[0], fPosZN[1], fPosZN[2] + fDimZN[2], 0, "ONLY");
675 // -------------------------------------------------------------------------------
676 //--> Proton calorimeter (ZP)
678 gMC->Gsvolu("ZPRO", "BOX ", idtmed[2], fDimZP, 3); // Passive material
679 gMC->Gsvolu("ZPF1", "TUBE", idtmed[3], fFibZP, 3); // Active material
680 gMC->Gsvolu("ZPF2", "TUBE", idtmed[4], fFibZP, 3);
681 gMC->Gsvolu("ZPF3", "TUBE", idtmed[4], fFibZP, 3);
682 gMC->Gsvolu("ZPF4", "TUBE", idtmed[3], fFibZP, 3);
683 gMC->Gsvolu("ZPG1", "BOX ", idtmed[12], fGrvZP, 3); // Empty grooves
684 gMC->Gsvolu("ZPG2", "BOX ", idtmed[12], fGrvZP, 3);
685 gMC->Gsvolu("ZPG3", "BOX ", idtmed[12], fGrvZP, 3);
686 gMC->Gsvolu("ZPG4", "BOX ", idtmed[12], fGrvZP, 3);
688 //-- Divide ZPRO in towers(for hits purposes)
690 gMC->Gsdvn("ZPTX", "ZPRO", fTowZP[0], 1); // x-tower
691 gMC->Gsdvn("ZP1 ", "ZPTX", fTowZP[1], 2); // y-tower
694 //-- Divide ZP1 in minitowers
695 // fDivZP[0]= NUMBER OF FIBERS ALONG X-AXIS PER MINITOWER,
696 // fDivZP[1]= NUMBER OF FIBERS ALONG Y-AXIS PER MINITOWER
697 // (4 fiber per minitower)
699 gMC->Gsdvn("ZPSL", "ZP1 ", fDivZP[1], 2); // Slices
700 gMC->Gsdvn("ZPST", "ZPSL", fDivZP[0], 1); // Sticks
702 // --- Position the empty grooves in the sticks (4 grooves per stick)
703 dx = fDimZP[0] / fTowZP[0] / fDivZP[0] / 2.;
704 dy = fDimZP[1] / fTowZP[1] / fDivZP[1] / 2.;
706 gMC->Gspos("ZPG1", 1, "ZPST", 0.-dx, 0.+dy, 0., 0, "ONLY");
707 gMC->Gspos("ZPG2", 1, "ZPST", 0.+dx, 0.+dy, 0., 0, "ONLY");
708 gMC->Gspos("ZPG3", 1, "ZPST", 0.-dx, 0.-dy, 0., 0, "ONLY");
709 gMC->Gspos("ZPG4", 1, "ZPST", 0.+dx, 0.-dy, 0., 0, "ONLY");
711 // --- Position the fibers in the grooves
712 gMC->Gspos("ZPF1", 1, "ZPG1", 0., 0., 0., 0, "ONLY");
713 gMC->Gspos("ZPF2", 1, "ZPG2", 0., 0., 0., 0, "ONLY");
714 gMC->Gspos("ZPF3", 1, "ZPG3", 0., 0., 0., 0, "ONLY");
715 gMC->Gspos("ZPF4", 1, "ZPG4", 0., 0., 0., 0, "ONLY");
718 // --- Position the proton calorimeter in ZDC
719 gMC->Gspos("ZPRO", 1, "ZDC ", fPosZP[0], fPosZP[1], fPosZP[2] + fDimZP[2], 0, "ONLY");
722 // -------------------------------------------------------------------------------
723 // -> EM calorimeter (ZEM)
725 gMC->Gsvolu("ZEM ", "PARA", idtmed[10], fDimZEM, 6);
729 gMC->Matrix(irot1,180.,0.,90.,90.,90.,0.); // Rotation matrix 1
730 gMC->Matrix(irot2,180.,0.,90.,fDimZEM[3]+90.,90.,fDimZEM[3]);// Rotation matrix 2
731 // printf("irot1 = %d, irot2 = %d \n", irot1, irot2);
733 gMC->Gsvolu("ZEMF", "TUBE", idtmed[3], fFibZEM, 3); // Active material
735 gMC->Gsdvn("ZETR", "ZEM ", fDivZEM[2], 1); // Tranches
737 DimPb[0] = fDimZEMPb; // Lead slices
738 DimPb[1] = fDimZEM[2];
739 DimPb[2] = fDimZEM[1];
740 DimPb[3] = 90.-fDimZEM[3];
743 gMC->Gsvolu("ZEL0", "PARA", idtmed[5], DimPb, 6);
744 gMC->Gsvolu("ZEL1", "PARA", idtmed[5], DimPb, 6);
745 // gMC->Gsvolu("ZEL2", "PARA", idtmed[5], DimPb, 6);
747 // --- Position the lead slices in the tranche
748 Float_t zTran = fDimZEM[0]/fDivZEM[2];
749 Float_t zTrPb = -zTran+fDimZEMPb;
750 gMC->Gspos("ZEL0", 1, "ZETR", zTrPb, 0., 0., 0, "ONLY");
751 gMC->Gspos("ZEL1", 1, "ZETR", fDimZEMPb, 0., 0., 0, "ONLY");
753 // --- Vacuum zone (to be filled with fibres)
754 DimVoid[0] = (zTran-2*fDimZEMPb)/2.;
755 DimVoid[1] = fDimZEM[2];
756 DimVoid[2] = fDimZEM[1];
757 DimVoid[3] = 90.-fDimZEM[3];
760 gMC->Gsvolu("ZEV0", "PARA", idtmed[10], DimVoid,6);
761 gMC->Gsvolu("ZEV1", "PARA", idtmed[10], DimVoid,6);
763 // --- Divide the vacuum slice into sticks along x axis
764 gMC->Gsdvn("ZES0", "ZEV0", fDivZEM[0], 3);
765 gMC->Gsdvn("ZES1", "ZEV1", fDivZEM[0], 3);
767 // --- Positioning the fibers into the sticks
768 gMC->Gspos("ZEMF", 1,"ZES0", 0., 0., 0., irot2, "ONLY");
769 gMC->Gspos("ZEMF", 1,"ZES1", 0., 0., 0., irot2, "ONLY");
771 // --- Positioning the vacuum slice into the tranche
772 Float_t DisplFib = fDimZEM[1]/fDivZEM[0];
773 gMC->Gspos("ZEV0", 1,"ZETR", -DimVoid[0], 0., 0., 0, "ONLY");
774 gMC->Gspos("ZEV1", 1,"ZETR", -DimVoid[0]+zTran, 0., DisplFib, 0, "ONLY");
776 // --- Positioning the ZEM into the ZDC - rotation for 90 degrees
777 gMC->Gspos("ZEM ", 1,"ZDC ", fPosZEM[0], fPosZEM[1], fPosZEM[2]+fDimZEM[0], irot1, "ONLY");
779 // --- Adding last slice at the end of the EM calorimeter
780 // Float_t zLastSlice = fPosZEM[2]+fDimZEMPb+fDimZEM[0];
781 // gMC->Gspos("ZEL2", 1,"ZDC ", fPosZEM[0], fPosZEM[1], zLastSlice, irot1, "ONLY");
785 //_____________________________________________________________________________
786 void AliZDCv2::DrawModule()
789 // Draw a shaded view of the Zero Degree Calorimeter version 1
792 // Set everything unseen
793 gMC->Gsatt("*", "seen", -1);
795 // Set ALIC mother transparent
796 gMC->Gsatt("ALIC","SEEN",0);
798 // Set the volumes visible
799 gMC->Gsatt("ZDC ","SEEN",0);
800 gMC->Gsatt("QT01","SEEN",1);
801 gMC->Gsatt("QT02","SEEN",1);
802 gMC->Gsatt("QT03","SEEN",1);
803 gMC->Gsatt("QT04","SEEN",1);
804 gMC->Gsatt("QT05","SEEN",1);
805 gMC->Gsatt("QT06","SEEN",1);
806 gMC->Gsatt("QT07","SEEN",1);
807 gMC->Gsatt("QT08","SEEN",1);
808 gMC->Gsatt("QT09","SEEN",1);
809 gMC->Gsatt("QT10","SEEN",1);
810 gMC->Gsatt("QT11","SEEN",1);
811 gMC->Gsatt("QT12","SEEN",1);
812 gMC->Gsatt("QT13","SEEN",1);
813 gMC->Gsatt("QT14","SEEN",1);
814 gMC->Gsatt("QT15","SEEN",1);
815 gMC->Gsatt("QT16","SEEN",1);
816 gMC->Gsatt("QT17","SEEN",1);
817 gMC->Gsatt("QT18","SEEN",1);
818 gMC->Gsatt("QC01","SEEN",1);
819 gMC->Gsatt("QC02","SEEN",1);
820 gMC->Gsatt("QC03","SEEN",1);
821 gMC->Gsatt("QC04","SEEN",1);
822 gMC->Gsatt("QC05","SEEN",1);
823 gMC->Gsatt("QTD1","SEEN",1);
824 gMC->Gsatt("QTD2","SEEN",1);
825 gMC->Gsatt("QTD3","SEEN",1);
826 gMC->Gsatt("MQXL","SEEN",1);
827 gMC->Gsatt("YMQL","SEEN",1);
828 gMC->Gsatt("MQX ","SEEN",1);
829 gMC->Gsatt("YMQ ","SEEN",1);
830 gMC->Gsatt("ZQYX","SEEN",1);
831 gMC->Gsatt("MD1 ","SEEN",1);
832 gMC->Gsatt("MD1V","SEEN",1);
833 gMC->Gsatt("YD1 ","SEEN",1);
834 gMC->Gsatt("MD2 ","SEEN",1);
835 gMC->Gsatt("YD2 ","SEEN",1);
836 gMC->Gsatt("ZNEU","SEEN",0);
837 gMC->Gsatt("ZNF1","SEEN",0);
838 gMC->Gsatt("ZNF2","SEEN",0);
839 gMC->Gsatt("ZNF3","SEEN",0);
840 gMC->Gsatt("ZNF4","SEEN",0);
841 gMC->Gsatt("ZNG1","SEEN",0);
842 gMC->Gsatt("ZNG2","SEEN",0);
843 gMC->Gsatt("ZNG3","SEEN",0);
844 gMC->Gsatt("ZNG4","SEEN",0);
845 gMC->Gsatt("ZNTX","SEEN",0);
846 gMC->Gsatt("ZN1 ","COLO",4);
847 gMC->Gsatt("ZN1 ","SEEN",1);
848 gMC->Gsatt("ZNSL","SEEN",0);
849 gMC->Gsatt("ZNST","SEEN",0);
850 gMC->Gsatt("ZPRO","SEEN",0);
851 gMC->Gsatt("ZPF1","SEEN",0);
852 gMC->Gsatt("ZPF2","SEEN",0);
853 gMC->Gsatt("ZPF3","SEEN",0);
854 gMC->Gsatt("ZPF4","SEEN",0);
855 gMC->Gsatt("ZPG1","SEEN",0);
856 gMC->Gsatt("ZPG2","SEEN",0);
857 gMC->Gsatt("ZPG3","SEEN",0);
858 gMC->Gsatt("ZPG4","SEEN",0);
859 gMC->Gsatt("ZPTX","SEEN",0);
860 gMC->Gsatt("ZP1 ","COLO",6);
861 gMC->Gsatt("ZP1 ","SEEN",1);
862 gMC->Gsatt("ZPSL","SEEN",0);
863 gMC->Gsatt("ZPST","SEEN",0);
864 gMC->Gsatt("ZEM ","COLO",7);
865 gMC->Gsatt("ZEM ","SEEN",1);
866 gMC->Gsatt("ZEMF","SEEN",0);
867 gMC->Gsatt("ZETR","SEEN",0);
868 gMC->Gsatt("ZEL0","SEEN",0);
869 gMC->Gsatt("ZEL1","SEEN",0);
870 gMC->Gsatt("ZEL2","SEEN",0);
871 gMC->Gsatt("ZEV0","SEEN",0);
872 gMC->Gsatt("ZEV1","SEEN",0);
873 gMC->Gsatt("ZES0","SEEN",0);
874 gMC->Gsatt("ZES1","SEEN",0);
877 gMC->Gdopt("hide", "on");
878 gMC->Gdopt("shad", "on");
879 gMC->Gsatt("*", "fill", 7);
880 gMC->SetClipBox(".");
881 gMC->SetClipBox("*", 0, 100, -100, 100, 12000, 16000);
883 gMC->Gdraw("alic", 40, 30, 0, 488, 220, .07, .07);
884 gMC->Gdhead(1111, "Zero Degree Calorimeter Version 1");
885 gMC->Gdman(18, 4, "MAN");
888 //_____________________________________________________________________________
889 void AliZDCv2::CreateMaterials()
892 // Create Materials for the Zero Degree Calorimeter
895 Int_t *idtmed = fIdtmed->GetArray();
897 Float_t dens, ubuf[1], wmat[2], a[2], z[2], deemax = -1;
900 // --- Store in UBUF r0 for nuclear radius calculation R=r0*A**1/3
902 // --- Tantalum -> ZN passive material
904 AliMaterial(1, "TANT", 180.95, 73., 16.65, .4, 11.9, ubuf, 1);
908 // AliMaterial(1, "TUNG", 183.85, 74., 19.3, .35, 10.3, ubuf, 1);
910 // --- Brass (CuZn) -> ZP passive material
918 AliMixture(2, "BRASS ", a, z, dens, 2, wmat);
928 AliMixture(3, "SIO2 ", a, z, dens, -2, wmat);
932 AliMaterial(5, "LEAD", 207.19, 82., 11.35, .56, 18.5, ubuf, 1);
936 AliMaterial(6, "COPP", 63.54, 29., 8.96, 1.4, 0., ubuf, 1);
938 // --- Iron (energy loss taken into account)
940 AliMaterial(7, "IRON", 55.85, 26., 7.87, 1.76, 0., ubuf, 1);
942 // --- Iron (no energy loss)
944 AliMaterial(8, "IRON", 55.85, 26., 7.87, 1.76, 0., ubuf, 1);
946 // --- Vacuum (no magnetic field)
947 AliMaterial(10, "VOID", 1e-16, 1e-16, 1e-16, 1e16, 1e16, ubuf,0);
949 // --- Vacuum (with magnetic field)
950 AliMaterial(11, "VOIM", 1e-16, 1e-16, 1e-16, 1e16, 1e16, ubuf,0);
952 // --- Air (no magnetic field)
953 AliMaterial(12, "Air $", 14.61, 7.3, .001205, 30420., 67500., ubuf, 0);
955 // --- Definition of tracking media:
957 // --- Tantalum = 1 ;
959 // --- Fibers (SiO2) = 3 ;
960 // --- Fibers (SiO2) = 4 ;
963 // --- Iron (with energy loss) = 7 ;
964 // --- Iron (without energy loss) = 8 ;
965 // --- Vacuum (no field) = 10
966 // --- Vacuum (with field) = 11
967 // --- Air (no field) = 12
970 // --- Tracking media parameters
971 Float_t epsil = .01, stmin=0.01, stemax = 1.;
972 // Int_t isxfld = gAlice->Field()->Integ();
973 Float_t fieldm = 0., tmaxfd = 0.;
974 Int_t ifield = 0, isvolActive = 1, isvol = 0, inofld = 0;
976 AliMedium(1, "ZTANT", 1, isvolActive, inofld, fieldm, tmaxfd, stemax, deemax, epsil, stmin);
977 // AliMedium(1, "ZW", 1, isvolActive, inofld, fieldm, tmaxfd, stemax, deemax, epsil, stmin);
978 AliMedium(2, "ZBRASS",2, isvolActive, inofld, fieldm, tmaxfd, stemax, deemax, epsil, stmin);
979 AliMedium(3, "ZSIO2", 3, isvolActive, inofld, fieldm, tmaxfd, stemax, deemax, epsil, stmin);
980 AliMedium(4, "ZQUAR", 3, isvolActive, inofld, fieldm, tmaxfd, stemax, deemax, epsil, stmin);
981 AliMedium(5, "ZLEAD", 5, isvolActive, inofld, fieldm, tmaxfd, stemax, deemax, epsil, stmin);
982 // AliMedium(6, "ZCOPP", 6, isvolActive, inofld, fieldm, tmaxfd, stemax, deemax, epsil, stmin);
983 // AliMedium(7, "ZIRON", 7, isvolActive, inofld, fieldm, tmaxfd, stemax, deemax, epsil, stmin);
984 AliMedium(6, "ZCOPP", 6, isvol, inofld, fieldm, tmaxfd, stemax, deemax, epsil, stmin);
985 AliMedium(7, "ZIRON", 7, isvol, inofld, fieldm, tmaxfd, stemax, deemax, epsil, stmin);
986 AliMedium(8, "ZIRONN",8, isvol, inofld, fieldm, tmaxfd, stemax, deemax, epsil, stmin);
987 AliMedium(10,"ZVOID",10, isvol, inofld, fieldm, tmaxfd, stemax, deemax, epsil, stmin);
988 AliMedium(12,"ZAIR", 12, 0, inofld, fieldm, tmaxfd, stemax,deemax, epsil, stmin);
992 AliMedium(11, "ZVOIM", 11, isvol, ifield, fieldm, tmaxfd, stemax, deemax, epsil, stmin);
994 // Thresholds for showering in the ZDCs
996 gMC->Gstpar(idtmed[i], "CUTGAM", .001);
997 gMC->Gstpar(idtmed[i], "CUTELE", .001);
998 gMC->Gstpar(idtmed[i], "CUTNEU", .01);
999 gMC->Gstpar(idtmed[i], "CUTHAD", .01);
1001 gMC->Gstpar(idtmed[i], "CUTGAM", .001);
1002 gMC->Gstpar(idtmed[i], "CUTELE", .001);
1003 gMC->Gstpar(idtmed[i], "CUTNEU", .01);
1004 gMC->Gstpar(idtmed[i], "CUTHAD", .01);
1006 gMC->Gstpar(idtmed[i], "CUTGAM", .001);
1007 gMC->Gstpar(idtmed[i], "CUTELE", .001);
1008 gMC->Gstpar(idtmed[i], "CUTNEU", .01);
1009 gMC->Gstpar(idtmed[i], "CUTHAD", .01);
1011 // Avoid too detailed showering in TDI
1013 gMC->Gstpar(idtmed[i], "CUTGAM", .1);
1014 gMC->Gstpar(idtmed[i], "CUTELE", .1);
1015 gMC->Gstpar(idtmed[i], "CUTNEU", 1.);
1016 gMC->Gstpar(idtmed[i], "CUTHAD", 1.);
1018 // Avoid too detailed showering along the beam line
1019 i = 7; //iron with energy loss (ZIRON)
1020 gMC->Gstpar(idtmed[i], "CUTGAM", .1);
1021 gMC->Gstpar(idtmed[i], "CUTELE", .1);
1022 gMC->Gstpar(idtmed[i], "CUTNEU", 1.);
1023 gMC->Gstpar(idtmed[i], "CUTHAD", 1.);
1025 // Avoid too detailed showering along the beam line
1026 i = 8; //iron with energy loss (ZIRONN)
1027 gMC->Gstpar(idtmed[i], "CUTGAM", .1);
1028 gMC->Gstpar(idtmed[i], "CUTELE", .1);
1029 gMC->Gstpar(idtmed[i], "CUTNEU", 1.);
1030 gMC->Gstpar(idtmed[i], "CUTHAD", 1.);
1032 // Avoid interaction in fibers (only energy loss allowed)
1033 i = 3; //fibers (ZSI02)
1034 gMC->Gstpar(idtmed[i], "DCAY", 0.);
1035 gMC->Gstpar(idtmed[i], "MULS", 0.);
1036 gMC->Gstpar(idtmed[i], "PFIS", 0.);
1037 gMC->Gstpar(idtmed[i], "MUNU", 0.);
1038 gMC->Gstpar(idtmed[i], "LOSS", 1.);
1039 gMC->Gstpar(idtmed[i], "PHOT", 0.);
1040 gMC->Gstpar(idtmed[i], "COMP", 0.);
1041 gMC->Gstpar(idtmed[i], "PAIR", 0.);
1042 gMC->Gstpar(idtmed[i], "BREM", 0.);
1043 gMC->Gstpar(idtmed[i], "DRAY", 0.);
1044 gMC->Gstpar(idtmed[i], "ANNI", 0.);
1045 gMC->Gstpar(idtmed[i], "HADR", 0.);
1046 i = 4; //fibers (ZQUAR)
1047 gMC->Gstpar(idtmed[i], "DCAY", 0.);
1048 gMC->Gstpar(idtmed[i], "MULS", 0.);
1049 gMC->Gstpar(idtmed[i], "PFIS", 0.);
1050 gMC->Gstpar(idtmed[i], "MUNU", 0.);
1051 gMC->Gstpar(idtmed[i], "LOSS", 1.);
1052 gMC->Gstpar(idtmed[i], "PHOT", 0.);
1053 gMC->Gstpar(idtmed[i], "COMP", 0.);
1054 gMC->Gstpar(idtmed[i], "PAIR", 0.);
1055 gMC->Gstpar(idtmed[i], "BREM", 0.);
1056 gMC->Gstpar(idtmed[i], "DRAY", 0.);
1057 gMC->Gstpar(idtmed[i], "ANNI", 0.);
1058 gMC->Gstpar(idtmed[i], "HADR", 0.);
1060 // Avoid interaction in void
1061 i = 11; //void with field
1062 gMC->Gstpar(idtmed[i], "DCAY", 0.);
1063 gMC->Gstpar(idtmed[i], "MULS", 0.);
1064 gMC->Gstpar(idtmed[i], "PFIS", 0.);
1065 gMC->Gstpar(idtmed[i], "MUNU", 0.);
1066 gMC->Gstpar(idtmed[i], "LOSS", 0.);
1067 gMC->Gstpar(idtmed[i], "PHOT", 0.);
1068 gMC->Gstpar(idtmed[i], "COMP", 0.);
1069 gMC->Gstpar(idtmed[i], "PAIR", 0.);
1070 gMC->Gstpar(idtmed[i], "BREM", 0.);
1071 gMC->Gstpar(idtmed[i], "DRAY", 0.);
1072 gMC->Gstpar(idtmed[i], "ANNI", 0.);
1073 gMC->Gstpar(idtmed[i], "HADR", 0.);
1076 fMedSensZN = idtmed[1]; // Sensitive volume: ZN passive material
1077 fMedSensZP = idtmed[2]; // Sensitive volume: ZP passive material
1078 fMedSensF1 = idtmed[3]; // Sensitive volume: fibres type 1
1079 fMedSensF2 = idtmed[4]; // Sensitive volume: fibres type 2
1080 fMedSensZEM = idtmed[5]; // Sensitive volume: ZEM passive material
1081 // fMedSensTDI = idtmed[6]; // Sensitive volume: TDI Cu shield
1082 // fMedSensPI = idtmed[7]; // Sensitive volume: beam pipes
1083 fMedSensGR = idtmed[12]; // Sensitive volume: air into the grooves
1086 //_____________________________________________________________________________
1087 void AliZDCv2::Init()
1092 //_____________________________________________________________________________
1093 void AliZDCv2::InitTables()
1097 char *lightfName1,*lightfName2,*lightfName3,*lightfName4,
1098 *lightfName5,*lightfName6,*lightfName7,*lightfName8;
1099 FILE *fp1, *fp2, *fp3, *fp4, *fp5, *fp6, *fp7, *fp8;
1101 // --- Reading light tables for ZN
1102 lightfName1 = gSystem->ExpandPathName("$ALICE/$ALICE_LEVEL/ZDC/light22620362207s");
1103 if((fp1 = fopen(lightfName1,"r")) == NULL){
1104 printf("Cannot open file fp1 \n");
1107 lightfName2 = gSystem->ExpandPathName("$ALICE/$ALICE_LEVEL/ZDC/light22620362208s");
1108 if((fp2 = fopen(lightfName2,"r")) == NULL){
1109 printf("Cannot open file fp2 \n");
1112 lightfName3 = gSystem->ExpandPathName("$ALICE/$ALICE_LEVEL/ZDC/light22620362209s");
1113 if((fp3 = fopen(lightfName3,"r")) == NULL){
1114 printf("Cannot open file fp3 \n");
1117 lightfName4 = gSystem->ExpandPathName("$ALICE/$ALICE_LEVEL/ZDC/light22620362210s");
1118 if((fp4 = fopen(lightfName4,"r")) == NULL){
1119 printf("Cannot open file fp4 \n");
1123 for(k=0; k<fNalfan; k++){
1124 for(j=0; j<fNben; j++){
1125 fscanf(fp1,"%f",&fTablen[0][k][j]);
1126 fscanf(fp2,"%f",&fTablen[1][k][j]);
1127 fscanf(fp3,"%f",&fTablen[2][k][j]);
1128 fscanf(fp4,"%f",&fTablen[3][k][j]);
1136 // --- Reading light tables for ZP and ZEM
1137 lightfName5 = gSystem->ExpandPathName("$ALICE/$ALICE_LEVEL/ZDC/light22620552207s");
1138 if((fp5 = fopen(lightfName5,"r")) == NULL){
1139 printf("Cannot open file fp5 \n");
1142 lightfName6 = gSystem->ExpandPathName("$ALICE/$ALICE_LEVEL/ZDC/light22620552208s");
1143 if((fp6 = fopen(lightfName6,"r")) == NULL){
1144 printf("Cannot open file fp6 \n");
1147 lightfName7 = gSystem->ExpandPathName("$ALICE/$ALICE_LEVEL/ZDC/light22620552209s");
1148 if((fp7 = fopen(lightfName7,"r")) == NULL){
1149 printf("Cannot open file fp7 \n");
1152 lightfName8 = gSystem->ExpandPathName("$ALICE/$ALICE_LEVEL/ZDC/light22620552210s");
1153 if((fp8 = fopen(lightfName8,"r")) == NULL){
1154 printf("Cannot open file fp8 \n");
1158 for(k=0; k<fNalfap; k++){
1159 for(j=0; j<fNbep; j++){
1160 fscanf(fp5,"%f",&fTablep[0][k][j]);
1161 fscanf(fp6,"%f",&fTablep[1][k][j]);
1162 fscanf(fp7,"%f",&fTablep[2][k][j]);
1163 fscanf(fp8,"%f",&fTablep[3][k][j]);
1172 //_____________________________________________________________________________
1173 Int_t AliZDCv2::Digitize(Int_t Det, Int_t Quad, Int_t Light)
1175 // Evaluation of the ADC channel corresponding to the light yield Light
1178 printf("\n Digitize -> Det = %d, Quad = %d, Light = %d\n", Det, Quad, Light);
1181 // Parameters for conversion of light yield in ADC channels
1182 Float_t fPMGain[3][5]; // PM gain
1183 Float_t fADCRes; // ADC conversion factor
1188 fPMGain[i][j] = 100000.;
1191 fADCRes = 0.00000064; // ADC Resolution: 250 fC/ADCch
1193 Int_t ADCch = Int_t(Light*fPMGain[Det-1][Quad]*fADCRes);
1199 //_____________________________________________________________________________
1200 void AliZDCv2::SDigits2Digits()
1202 Hits2Digits(gAlice->GetNtrack());
1205 //_____________________________________________________________________________
1206 void AliZDCv2::Hits2Digits(Int_t ntracks)
1208 AliZDCDigit *newdigit;
1211 Int_t PMCZN = 0, PMCZP = 0, PMQZN[4], PMQZP[4], PMZEM = 0;
1220 for(itrack=0; itrack<ntracks; itrack++){
1221 gAlice->ResetHits();
1222 gAlice->TreeH()->GetEvent(itrack);
1223 for(i=0; i<fHits->GetEntries(); i++){
1224 hit = (AliZDCHit*)fHits->At(i);
1225 Int_t det = hit->GetVolume(0);
1226 Int_t quad = hit->GetVolume(1);
1227 Int_t lightQ = Int_t(hit->GetLightPMQ());
1228 Int_t lightC = Int_t(hit->GetLightPMC());
1230 printf(" \n itrack = %d, fNhits = %d, det = %d, quad = %d,"
1231 "lightC = %d lightQ = %d\n", itrack, fNhits, det, quad, lightC, lightQ);
1234 PMCZN = PMCZN + lightC;
1235 PMQZN[quad-1] = PMQZN[quad-1] + lightQ;
1239 PMCZP = PMCZP + lightC;
1240 PMQZP[quad-1] = PMQZP[quad-1] + lightQ;
1244 PMZEM = PMZEM + lightC;
1251 printf("\n PMCZN = %d, PMQZN[0] = %d, PMQZN[1] = %d, PMQZN[2] = %d, PMQZN[3] = %d\n"
1252 , PMCZN, PMQZN[0], PMQZN[1], PMQZN[2], PMQZN[3]);
1253 printf("\n PMCZP = %d, PMQZP[0] = %d, PMQZP[1] = %d, PMQZP[2] = %d, PMQZP[3] = %d\n"
1254 , PMCZP, PMQZP[0], PMQZP[1], PMQZP[2], PMQZP[3]);
1255 printf("\n PMZEM = %d\n", PMZEM);
1258 // ------------------------------------ Hits2Digits
1260 newdigit = new AliZDCDigit(1, 0, Digitize(1, 0, PMCZN));
1261 new((*fDigits)[fNdigits]) AliZDCDigit(*newdigit);
1267 newdigit = new AliZDCDigit(1, j+1, Digitize(1, j+1, PMQZN[j]));
1268 new((*fDigits)[fNdigits]) AliZDCDigit(*newdigit);
1274 newdigit = new AliZDCDigit(2, 0, Digitize(2, 0, PMCZP));
1275 new((*fDigits)[fNdigits]) AliZDCDigit(*newdigit);
1281 newdigit = new AliZDCDigit(2, k+1, Digitize(2, k+1, PMQZP[k]));
1282 new((*fDigits)[fNdigits]) AliZDCDigit(*newdigit);
1288 newdigit = new AliZDCDigit(3, 0, Digitize(3, 0, PMZEM));
1289 new((*fDigits)[fNdigits]) AliZDCDigit(*newdigit);
1294 gAlice->TreeD()->Fill();
1295 gAlice->TreeD()->Write(0,TObject::kOverwrite);
1298 // printf("\n Event Digits -----------------------------------------------------\n");
1299 // fDigits->Print("");
1303 //_____________________________________________________________________________
1304 void AliZDCv2::MakeBranch(Option_t *opt, char *file)
1307 // Create a new branch in the current Root Tree
1310 AliDetector::MakeBranch(opt);
1312 Char_t branchname[10];
1313 sprintf(branchname,"%s",GetName());
1314 const char *cD = strstr(opt,"D");
1316 if (gAlice->TreeD() && cD) {
1318 // Creation of the digits from hits
1320 if(fDigits!=0) fDigits->Clear();
1321 else fDigits = new TClonesArray ("AliZDCDigit",1000);
1322 char branchname[10];
1323 sprintf(branchname,"%s",GetName());
1324 gAlice->MakeBranchInTree(gAlice->TreeD(),
1325 branchname, &fDigits, fBufferSize, file) ;
1326 printf("* AliZDCv2::MakeBranch * Making Branch %s for digits\n\n",branchname);
1330 //_____________________________________________________________________________
1331 void AliZDCv2::StepManager()
1334 // Routine called at every step in the Zero Degree Calorimeters
1337 Int_t j, vol[2], ibeta=0, ialfa, ibe, nphe;
1338 Float_t x[3], xdet[3], destep, hits[10], m, ekin, um[3], ud[3], be, radius, out;
1339 TLorentzVector s, p;
1342 for (j=0;j<10;j++) hits[j]=0;
1344 if((gMC->GetMedium() == fMedSensZN) || (gMC->GetMedium() == fMedSensZP) ||
1345 (gMC->GetMedium() == fMedSensGR) || (gMC->GetMedium() == fMedSensF1) ||
1346 (gMC->GetMedium() == fMedSensF2) || (gMC->GetMedium() == fMedSensZEM)){
1347 // (gMC->GetMedium() == fMedSensPI) || (gMC->GetMedium() == fMedSensTDI)){
1349 // If particle interacts with beam pipe -> return
1350 // if((gMC->GetMedium() == fMedSensPI) || (gMC->GetMedium() == fMedSensTDI)){
1351 // If option NoShower is set -> StopTrack
1352 // if(fNoShower==1) {
1353 // if(gMC->GetMedium() == fMedSensPI) {
1354 // knamed = gMC->CurrentVolName();
1355 // if((!strncmp(knamed,"MQ",2)) || (!strncmp(knamed,"YM",2))) fpLostIT += 1;
1356 // if((!strncmp(knamed,"MD1",3))|| (!strncmp(knamed,"YD1",2))) fpLostD1 += 1;
1358 // if(gMC->GetMedium() == fMedSensTDI) fpLostTDI += 1;
1359 // gMC->StopTrack();
1360 // printf("\n # of p lost in Inner Triplet = %d\n",fpLostIT);
1361 // printf("\n # of p lost in D1 = %d\n",fpLostD1);
1362 // printf("\n # of p lost in TDI = %d\n",fpLostTDI);
1367 //Particle coordinates
1368 gMC->TrackPosition(s);
1369 for(j=0; j<=2; j++){
1376 // Determine in which ZDC the particle is
1377 knamed = gMC->CurrentVolName();
1378 if(!strncmp(knamed,"ZN",2))vol[0]=1;
1379 if(!strncmp(knamed,"ZP",2))vol[0]=2;
1380 if(!strncmp(knamed,"ZE",2))vol[0]=3;
1382 // Determine in which quadrant the particle is
1386 xdet[0] = x[0]-fPosZN[0];
1387 xdet[1] = x[1]-fPosZN[1];
1388 if((xdet[0]<=0.) && (xdet[1]>=0.)) vol[1]=1;
1389 if((xdet[0]>0.) && (xdet[1]>0.)) vol[1]=2;
1390 if((xdet[0]<0.) && (xdet[1]<0.)) vol[1]=3;
1391 if((xdet[0]>0.) && (xdet[1]<0.)) vol[1]=4;
1396 xdet[0] = x[0]-fPosZP[0];
1397 xdet[1] = x[1]-fPosZP[1];
1398 if(xdet[0]>fDimZP[0])xdet[0]=fDimZP[0]-0.01;
1399 if(xdet[0]<-fDimZP[0])xdet[0]=-fDimZP[0]+0.01;
1400 Float_t xqZP = xdet[0]/(fDimZP[0]/2);
1401 for(int i=1; i<=4; i++){
1402 if(xqZP>=(i-3) && xqZP<(i-2)){
1409 //ZEM has only 1 quadrant
1412 xdet[0] = x[0]-fPosZEM[0];
1413 xdet[1] = x[1]-fPosZEM[1];
1416 // Store impact point and kinetic energy of the ENTERING particle
1418 // if(Curtrack==Prim){
1419 if(gMC->IsTrackEntering()){
1421 gMC->TrackMomentum(p);
1423 // Impact point on ZDC
1431 // Int_t PcID = gMC->TrackPid();
1432 // printf("Pc ID -> %d\n",PcID);
1433 AddHit(gAlice->CurrentTrack(), vol, hits);
1438 // printf("\n # of detected p = %d\n",fpDetected);
1444 // Charged particles -> Energy loss
1445 if((destep=gMC->Edep())){
1446 if(gMC->IsTrackStop()){
1447 gMC->TrackMomentum(p);
1448 m = gMC->TrackMass();
1453 AddHit(gAlice->CurrentTrack(), vol, hits);
1459 AddHit(gAlice->CurrentTrack(), vol, hits);
1461 // printf(" Dep. E = %f \n",hits[9]);
1463 }// NB -> Questa parentesi (chiude il primo IF) io la sposterei al fondo!???
1466 // *** Light production in fibres
1467 if((gMC->GetMedium() == fMedSensF1) || (gMC->GetMedium() == fMedSensF2)){
1469 //Select charged particles
1470 if((destep=gMC->Edep())){
1472 // Particle velocity
1473 gMC->TrackMomentum(p);
1474 Float_t ptot=TMath::Sqrt(p[0]*p[0]+p[1]*p[1]+p[2]*p[2]);
1475 Float_t beta = ptot/p[3];
1476 if(beta<0.67) return;
1477 if((beta>=0.67) && (beta<=0.75)) ibeta = 0;
1478 if((beta>0.75) && (beta<=0.85)) ibeta = 1;
1479 if((beta>0.85) && (beta<=0.95)) ibeta = 2;
1480 if(beta>0.95) ibeta = 3;
1482 // Angle between particle trajectory and fibre axis
1483 // 1 -> Momentum directions
1487 gMC->Gmtod(um,ud,2);
1488 // 2 -> Angle < limit angle
1489 Double_t alfar = TMath::ACos(ud[2]);
1490 Double_t alfa = alfar*kRaddeg;
1491 if(alfa>=110.) return;
1492 ialfa = Int_t(1.+alfa/2.);
1494 // Distance between particle trajectory and fibre axis
1495 gMC->TrackPosition(s);
1496 for(j=0; j<=2; j++){
1499 gMC->Gmtod(x,xdet,1);
1500 if(TMath::Abs(ud[0])>0.00001){
1501 Float_t dcoeff = ud[1]/ud[0];
1502 be = TMath::Abs((xdet[1]-dcoeff*xdet[0])/TMath::Sqrt(dcoeff*dcoeff+1.));
1505 be = TMath::Abs(ud[0]);
1508 if((vol[0]==1)) radius = fFibZN[1];
1509 if((vol[0]==2)) radius = fFibZP[1];
1510 ibe = Int_t(be*1000.+1);
1512 //Looking into the light tables
1513 Float_t charge = gMC->TrackCharge();
1517 if(ibe>fNben) ibe=fNben;
1518 out = charge*charge*fTablen[ibeta][ialfa][ibe];
1519 nphe = gRandom->Poisson(out);
1520 // printf("ZN --- ibeta = %d, ialfa = %d, ibe = %d"
1521 // " -> out = %f, nphe = %d\n", ibeta, ialfa, ibe, out, nphe);
1522 if(gMC->GetMedium() == fMedSensF1){
1523 hits[7] = nphe; //fLightPMQ
1526 AddHit(gAlice->CurrentTrack(), vol, hits);
1530 hits[8] = nphe; //fLightPMC
1532 AddHit(gAlice->CurrentTrack(), vol, hits);
1538 if(ibe>fNbep) ibe=fNbep;
1539 out = charge*charge*fTablep[ibeta][ialfa][ibe];
1540 nphe = gRandom->Poisson(out);
1541 // printf("ZP --- ibeta = %d, ialfa = %d, ibe = %d"
1542 // " -> out = %f, nphe = %d\n", ibeta, ialfa, ibe, out, nphe);
1543 if(gMC->GetMedium() == fMedSensF1){
1544 hits[7] = nphe; //fLightPMQ
1547 AddHit(gAlice->CurrentTrack(), vol, hits);
1551 hits[8] = nphe; //fLightPMC
1553 AddHit(gAlice->CurrentTrack(), vol, hits);
1558 if(ibe>fNbep) ibe=fNbep;
1559 out = charge*charge*fTablep[ibeta][ialfa][ibe];
1560 nphe = gRandom->Poisson(out);
1561 // printf("ZEM --- ibeta = %d, ialfa = %d, ibe = %d"
1562 // " -> out = %f, nphe = %d\n", ibeta, ialfa, ibe, out, nphe);
1564 hits[8] = nphe; //fLightPMC
1566 AddHit(gAlice->CurrentTrack(), vol, hits);