1 ///////////////////////////////////////////////////////////////////////////////
3 // Zero Degree Calorimeter //
4 // This class contains the basic functions for the Time Of Flight //
5 // detector. Functions specific to one particular geometry are //
6 // contained in the derived classes //
10 <img src="gif/AliZDCClass.gif">
13 <font size=+2 color=red>
14 <p>The responsible person for this module is
15 <a href="mailto:Eugenio.Scomparin@cern.ch">Eugenio Scomparin</a>.
22 ///////////////////////////////////////////////////////////////////////////////
29 #include "AliCallf77.h"
34 # define zdc_init zdc_init_
35 # define zdc_step zdc_step_
36 # define zdc_setbeam zdc_setbeam_
37 # define zdc_sethijing zdc_sethijing_
38 # define zdc_setvenus zdc_setvenus_
39 # define zdc_setkine zdc_setkine_
41 # define zdc_step ZDC_STEP
42 # define zdc_setbeam ZDC_SETBEAM
43 # define zdc_sethijing ZDC_SETHIJING
44 # define zdc_setvenus ZDC_SETVENUS
45 # define zdc_setkine ZDC_SETKINE
48 extern "C" void type_of_call zdc_init();
49 extern "C" void type_of_call zdc_step();
50 extern "C" void type_of_call zdc_setbeam(Int_t beam, Float_t fx, Float_t fy,
51 Float_t sx, Float_t sy, Float_t div,
52 Float_t angle, Int_t cross);
53 extern "C" void type_of_call zdc_sethijing(Int_t hij, Int_t hijf, Int_t hijsp,
55 extern "C" void type_of_call zdc_setvenus(Int_t hiv, Int_t hivf, Int_t hivsp,
57 extern "C" void type_of_call zdc_setkine(Int_t code, Float_t pmom, Float_t cx,
58 Float_t cy, Float_t cz, Int_t type,
63 //_____________________________________________________________________________
67 // Default constructor for the Zero Degree Calorimeter base class
72 //_____________________________________________________________________________
73 AliZDC::AliZDC(const char *name, const char *title)
74 : AliDetector(name,title)
77 // Standard constructor for the Zero Degree Calorimeter base class
81 // Allocate the array of hits
82 fHits = new TClonesArray("AliZDChit", 405);
87 //_____________________________________________________________________________
88 void AliZDC::AddHit(Int_t track, Int_t *vol, Float_t *hits)
91 // Add a Zero Degree Calorimeter hit
93 TClonesArray &lhits = *fHits;
94 new(lhits[fNhits++]) AliZDChit(fIshunt,track,vol,hits);
97 //_____________________________________________________________________________
98 void AliZDC::BuildGeometry()
101 // Build the ROOT TNode geometry for event display
102 // in the Zero Degree Calorimeter
103 // This routine is dummy for the moment
106 // TNode *Node, *Top;
108 // const int kColorZDC = kRed;
111 // Top=gAlice->GetGeometry()->GetNode("alice");
115 brik = new TBRIK("S_ZDC","ZDC box","void",300,300,5);
117 Node = new TNode("ZDC","ZDC","S_ZDC",0,0,600,"");
118 Node->SetLineColor(kColorZDC);
123 //_____________________________________________________________________________
124 Int_t AliZDC::DistancetoPrimitive(Int_t , Int_t )
127 // Distance from the mouse to the Zero Degree Calorimeter
133 //_____________________________________________________________________________
134 void AliZDC::SetBeam(Int_t beam, Float_t fx, Float_t fy, Float_t sx,
135 Float_t sy, Float_t div, Float_t angle, Int_t cross)
138 // Set beam characteristic
139 // This routine has to be revised as it is disconnected from the
140 // actual generation in this version of AliRoot
143 // beam : 1 = gaussian beam
144 // : 2 = uniform beam
145 // fx : x-coordinate of beam offset
146 // fy : y-coordinate of beam offset
147 // sx : sigma-x of the beam (gaussian or uniform)
148 // sy : sigma-y of the beam (gaussian or uniform)
149 // div : divergency of the beam (32*10**-6 rad for LHC)
150 // angle : beam crossing angle (100*10**-6 rad for LHC)
151 // cross : 1 = horizontal beam crossing
152 // : 2 = vertical beam crossing
153 zdc_setbeam(beam,fx,fy,sx,sy,div,angle,cross);
156 //_____________________________________________________________________________
157 void AliZDC::SetHijing(Int_t hij, Int_t hijf, Int_t hijsp, const char *file)
160 // Set the parameter for the HIJING generation
161 // This routine has to be revised as it is disconnected from the
162 // actual generation in this version of AliRoot
165 // HIJ : 1 = read HIJING event file
166 // : 2 = " " " " + debug
167 // HIJF : event number of the first event to be read from file
168 // HIJSP: 0 = read all particles
169 // : 1 = remove spectator nucleons
170 zdc_sethijing(hij,hijf,hijsp, PASSCHARD(file) PASSCHARL(file));
173 //_____________________________________________________________________________
174 void AliZDC::SetVenus(Int_t hiv, Int_t hivf, Int_t hivsp, const char *file)
177 // Set the parameter for the VENUS generation
178 // This routine has to be revised as it is disconnected from the
179 // actual generation in this version of AliRoot
182 // HIV : 1 = read VENUS event file
183 // : 2 = " " " " + debug
184 // HIVF : event number of the first event to be read from file
185 // HIVSP: 0 = read all particles
186 // : 1 = remove spectator nucleons
187 zdc_setvenus(hiv,hivf,hivsp, PASSCHARD(file) PASSCHARL(file));
190 //_____________________________________________________________________________
191 void AliZDC::SetKine(Int_t code, Float_t pmom, Float_t cx, Float_t cy,
192 Float_t cz, Int_t type, Int_t fermi)
195 // Set the parameter for the event generation
196 // This routine has to be revised as it is disconnected from the
197 // actual generation in this version of AliRoot
200 // code : GEANT code of the test particle
201 // pmom : absolute value of particle momentum
202 // cx,cy,cz : director cosines of the track (if type)
203 // type : 0 = take director cosines from cx,cy,cz
204 // : <>0 = pseudorapidity of the test particle
205 // fermi : 0 = no Fermi motion for the spectator nucleons
206 // : 1 = Fermi motion for the spectator nucleons
207 zdc_setkine(code,pmom,cx,cy,cz,type,fermi);
210 //_____________________________________________________________________________
211 void AliZDC::StepManager()
214 // Routine called at every step in the Zero Degree Calorimeter
215 // This is a simple interface to the FORTRAN routine
216 // A step manager should be written
225 ///////////////////////////////////////////////////////////////////////////////
227 // Zero Degree Calorimeter version 1 //
231 <img src="gif/AliZDCv1Class.gif">
236 ///////////////////////////////////////////////////////////////////////////////
238 //_____________________________________________________________________________
239 AliZDCv1::AliZDCv1() : AliZDC()
242 // Default constructor for Zero Degree Calorimeter
246 //_____________________________________________________________________________
247 AliZDCv1::AliZDCv1(const char *name, const char *title)
251 // Standard constructor for Zero Degree Calorimeter
255 //_____________________________________________________________________________
256 void AliZDCv1::CreateGeometry()
259 // Create the geometry for the Zero Degree Calorimeter version 1
260 // -- Author : E Scomparin
264 <img src="gif/AliZDCv1.gif">
269 <img src="gif/AliZDCv1Tree.gif">
273 // The following variables were illegaly initialized in zdc_init.
274 // These variables should become data members of this class
275 // once zdc_init has been converted
276 //* Initialize COMMON block ZDC_CGEOM
279 AliMC* pMC = AliMC::GetMC();
286 Float_t HDZN[3] = {4.0,4.0,50.0};
287 Float_t HDZP[3] = {10.0,6.0,75.0};
288 // Coordinates of the center of the ZDC front face in the MRS
289 Float_t ZNPOS[3] = {-0.5,0.,11613.};
290 Float_t ZPPOS[3] = {-21.0,0.,11563.};
291 Float_t FIZN[3] = {0.,0.01825,50.0};
292 Float_t FIZP[3] = {0.,0.01825,75.0};
293 Float_t GRZN[3] = {0.025,0.025,50.0};
294 Float_t GRZP[3] = {0.040,0.040,75.0};
295 Int_t NCEN[3] = {11,11,0};
296 Int_t NCEP[3] = {10,10,0};
299 Float_t zq, conpar[9], tubpar[3];
304 Int_t *idtmed = gAlice->Idtmed();
306 // -- Mother of the ZDC
316 pMC->Gsvolu("ZDC ", "PCON", idtmed[891], conpar, 9);
317 pMC->Gspos("ZDC ", 1, "ALIC", 0., 0., 0., 0, "ONLY");
318 // -- FIRST SECTION OF THE BEAM PIPE (from compensator dipole to
326 pMC->Gsvolu("P001", "TUBE", idtmed[851], tubpar, 3);
327 pMC->Gspos("P001", 1, "ZDC ", 0., 0., tubpar[2] + zd1, 0, "ONLY");
329 //-- SECOND SECTION OF THE BEAM PIPE (FROM THE END OF D1 TO THE BEGINNING OF
337 pMC->Gsvolu("P002", "TUBE", idtmed[851], tubpar, 3);
338 pMC->Gspos("P002", 1, "ZDC ", 0., 0., tubpar[2] + zd1, 0, "ONLY");
340 zd1 += tubpar[2] * 2.;
345 pMC->Gsvolu("P003", "TUBE", idtmed[851], tubpar, 3);
346 pMC->Gspos("P003", 1, "ZDC ", 0., 0., tubpar[2] + zd1, 0, "ONLY");
348 zd1 += tubpar[2] * 2.;
355 pMC->Gsvolu("P004", "CONE", idtmed[851], conpar, 5);
356 pMC->Gspos("P004", 1, "ZDC ", 0., 0., conpar[0] + zd1, 0, "ONLY");
358 zd1 += conpar[0] * 2.;
363 pMC->Gsvolu("P005", "TUBE", idtmed[851], tubpar, 3);
364 pMC->Gspos("P005", 1, "ZDC ", 0., 0., tubpar[2] + zd1, 0, "ONLY");
366 zd1 += tubpar[2] * 2.;
373 pMC->Gsvolu("P006", "CONE", idtmed[851], conpar, 5);
374 pMC->Gspos("P006", 1, "ZDC ", 0., 0., conpar[0] + zd1, 0, "ONLY");
376 zd1 += conpar[0] * 2.;
381 pMC->Gsvolu("P007", "TUBE", idtmed[851], tubpar, 3);
382 pMC->Gspos("P007", 1, "ZDC ", 0., 0., tubpar[2] + zd1, 0, "ONLY");
384 zd1 += tubpar[2] * 2.;
391 pMC->Gsvolu("P008", "CONE", idtmed[851], conpar, 5);
392 pMC->Gspos("P008", 1, "ZDC ", 0., 0., conpar[0] + zd1, 0, "ONLY");
394 zd1 += conpar[0] * 2.;
398 tubpar[2] = 205.8/2.;
399 pMC->Gsvolu("P009", "TUBE", idtmed[851], tubpar, 3);
400 pMC->Gspos("P009", 1, "ZDC ", 0., 0., tubpar[2] + zd1, 0, "ONLY");
402 zd1 += tubpar[2] * 2.;
407 pMC->Gsvolu("P010", "TUBE", idtmed[851], tubpar, 3);
408 pMC->Gspos("P010", 1, "ZDC ", 0., 0., tubpar[2] + zd1, 0, "ONLY");
410 zd1 += tubpar[2] * 2.;
414 tubpar[2] = 757.5/2.;
415 pMC->Gsvolu("P011", "TUBE", idtmed[851], tubpar, 3);
416 pMC->Gspos("P011", 1, "ZDC ", 0., 0., tubpar[2] + zd1, 0, "ONLY");
418 zd1 += tubpar[2] * 2.;
425 pMC->Gsvolu("P012", "CONE", idtmed[851], conpar, 5);
426 pMC->Gspos("P012", 1, "ZDC ", 0., 0., conpar[0] + zd1, 0, "ONLY");
428 zd1 += conpar[0] * 2.;
433 pMC->Gsvolu("P013", "TUBE", idtmed[851], tubpar, 3);
434 pMC->Gspos("P013", 1, "ZDC ", 0., 0., tubpar[2] + zd1, 0, "ONLY");
436 zd1 += tubpar[2] * 2.;
441 pMC->Gsvolu("P014", "TUBE", idtmed[851], tubpar, 3);
442 pMC->Gspos("P014", 1, "ZDC ", 0., 0., tubpar[2] + zd1, 0, "ONLY");
444 zd1 += tubpar[2] * 2.;
451 pMC->Gsvolu("P015", "CONE", idtmed[851], conpar, 5);
452 pMC->Gspos("P015", 1, "ZDC ", 0., 0., conpar[0] + zd1, 0, "ONLY");
454 zd1 += conpar[0] * 2.;
459 pMC->Gsvolu("P016", "TUBE", idtmed[851], tubpar, 3);
460 pMC->Gspos("P016", 1, "ZDC ", 0., 0., tubpar[2] + zd1, 0, "ONLY");
462 zd1 += tubpar[2] * 2.;
467 pMC->Gsvolu("P017", "TUBE", idtmed[851], tubpar, 3);
468 pMC->Gspos("P017", 1, "ZDC ", 0., 0., tubpar[2] + zd1, 0, "ONLY");
470 zd1 += tubpar[2] * 2.;
477 pMC->Gsvolu("P018", "CONE", idtmed[851], conpar, 5);
478 pMC->Gspos("P018", 1, "ZDC ", 0., 0., conpar[0] + zd1, 0, "ONLY");
480 zd1 += conpar[0] * 2.;
485 pMC->Gsvolu("P019", "TUBE", idtmed[851], tubpar, 3);
486 pMC->Gspos("P019", 1, "ZDC ", 0., 0., tubpar[2] + zd1, 0, "ONLY");
488 zd1 += tubpar[2] * 2.;
493 pMC->Gsvolu("P020", "TUBE", idtmed[851], tubpar, 3);
494 pMC->Gspos("P020", 1, "ZDC ", 0., 0., tubpar[2] + zd1, 0, "ONLY");
496 zd1 += tubpar[2] * 2.;
501 pMC->Gsvolu("P021", "TUBE", idtmed[851], tubpar, 3);
502 pMC->Gspos("P021", 1, "ZDC ", 0., 0., tubpar[2] + zd1, 0, "ONLY");
504 zd1 += tubpar[2] * 2.;
509 pMC->Gsvolu("Q021", "TUBE", idtmed[889], tubpar, 3);
513 pMC->Gsvolu("R021", "TUBE", idtmed[889], tubpar, 3);
514 // -- POSITION Q021 INSIDE P021
515 pMC->Gspos("Q021", 1, "P021", -7.7, 0., 0., 0, "ONLY");
516 // -- POSITION R020 INSIDE P020
517 pMC->Gspos("R021", 1, "P021", 7.7, 0., 0., 0, "ONLY");
519 // -- BEAM PIPES BETWEEN END OF CONICAL PIPE AND BEGINNING OF D2
522 tubpar[2] = 645.*0.5;
523 pMC->Gsvolu("P022", "TUBE", idtmed[851], tubpar, 3);
526 tubpar[2] = 645.*0.5;
527 pMC->Gsvolu("P023", "TUBE", idtmed[851], tubpar, 3);
530 AliMatrix(im1, 90.-0.071, 0., 90., 90., .071, 180.);
531 angle = .071*kDegrad;
532 pMC->Gspos("P022", 1, "ZDC ", TMath::Sin(angle) * 322.5 - 9.7 +
533 TMath::Sin(angle) * 472.5, 0., tubpar[2] + zd1, im1, "ONLY");
534 AliMatrix(im2, 90.+0.071, 0., 90., 90., .071, 0.);
535 pMC->Gspos("P023", 1, "ZDC ", 9.7 - TMath::Sin(angle) * 322.5, 0.,
536 tubpar[2] + zd1, im2, "ONLY");
538 // -- END OF BEAM PIPE VOLUME DEFINITION. MAGNET DEFINITION FOLLOWS
541 // -- COMPENSATOR DIPOLE (MCBWA)
542 // GAP (VACUUM WITH MAGNETIC FIELD)
547 pMC->Gsvolu("MCBW", "TUBE", idtmed[890], tubpar, 3);
548 pMC->Gspos("MCBW", 1, "ZDC ", 0., 0., tubpar[2] + 1920., 0, "ONLY");
550 // -- YOKE (IRON WITHOUT MAGNETIC FIELD)
555 pMC->Gsvolu("YMCB", "TUBE", idtmed[851], tubpar, 3);
556 pMC->Gspos("YMCB", 1, "ZDC ", 0., 0., tubpar[2] + 1920., 0, "ONLY");
562 // -- DEFINE MQXL AND MQX QUADRUPOLE ELEMENT
565 // -- GAP (VACUUM WITH MAGNETIC FIELD)
570 pMC->Gsvolu("MQXL", "TUBE", idtmed[890], tubpar, 3);
577 pMC->Gsvolu("YMQL", "TUBE", idtmed[851], tubpar, 3);
579 pMC->Gspos("MQXL", 1, "ZDC ", 0., 0., tubpar[2] + zq, 0, "ONLY");
580 pMC->Gspos("YMQL", 1, "ZDC ", 0., 0., tubpar[2] + zq, 0, "ONLY");
582 pMC->Gspos("MQXL", 2, "ZDC ", 0., 0., tubpar[2] + zq + 2430., 0, "ONLY");
583 pMC->Gspos("YMQL", 2, "ZDC ", 0., 0., tubpar[2] + zq + 2430., 0, "ONLY");
586 // -- GAP (VACUUM WITH MAGNETIC FIELD)
591 pMC->Gsvolu("MQX ", "TUBE", idtmed[890], tubpar, 3);
598 pMC->Gsvolu("YMQ ", "TUBE", idtmed[851], tubpar, 3);
600 pMC->Gspos("MQX ", 1, "ZDC ", 0., 0., tubpar[2] + zq + 880., 0, "ONLY");
601 pMC->Gspos("YMQ ", 1, "ZDC ", 0., 0., tubpar[2] + zq + 880., 0, "ONLY");
603 pMC->Gspos("MQX ", 2, "ZDC ", 0., 0., tubpar[2] + zq + 1530., 0, "ONLY");
604 pMC->Gspos("YMQ ", 2, "ZDC ", 0., 0., tubpar[2] + zq + 1530., 0, "ONLY");
606 // -- SEPARATOR DIPOLE D1
610 // -- GAP (VACUUM WITH MAGNETIC FIELD)
615 pMC->Gsvolu("D1 ", "TUBE", idtmed[890], tubpar, 3);
622 pMC->Gsvolu("YD1 ", "TUBE", idtmed[851], tubpar, 3);
624 pMC->Gspos("YD1 ", 1, "ZDC ", 0., 0., tubpar[2] + zd1, 0, "ONLY");
625 pMC->Gspos("D1 ", 1, "YD1 ", 0., 0., 0., 0, "ONLY");
631 // -- GAP (VACUUM WITH MAGNETIC FIELD)
636 pMC->Gsvolu("D2 ", "TUBE", idtmed[890], tubpar, 3);
643 pMC->Gsvolu("YD2 ", "TUBE", idtmed[851], tubpar, 3);
645 pMC->Gspos("YD2 ", 1, "ZDC ", 0., 0., tubpar[2] + zd2, 0, "ONLY");
647 pMC->Gspos("D2 ", 1, "YD2 ", -9.7, 0., 0., 0, "ONLY");
648 pMC->Gspos("D2 ", 2, "YD2 ", 9.7, 0., 0., 0, "ONLY");
650 // -- END OF MAGNET DEFINITION
652 // ----------------- Hadronic calorimeters -------------------- *
654 // Neutron calorimeter
656 pMC->Gsvolu("ZNEU", "BOX ", idtmed[800], HDZN, 3); // Passive material
657 pMC->Gsvolu("ZNFI", "TUBE", idtmed[802], FIZN, 3); // Active material
658 pMC->Gsvolu("ZNGR", "BOX ", idtmed[889], GRZN, 3); // Empty grooves
660 // Divide ZNEU in towers
661 // (for hits purposes)
663 pMC->Gsdvn("ZNTX", "ZNEU", NZNTX, 1); // x-tower
664 pMC->Gsdvn("ZN1 ", "ZNTX", NZNTY, 2); // y-tower
666 // Divide ZNEU in minitowers
667 // (NCEN(1)= NUMBER OF FIBERS PER TOWER ALONG X-AXIS,
668 // NCEN(2)= NUMBER OF FIBERS PER TOWER ALONG Y-AXIS)
669 // (one fiber per minitower)
671 pMC->Gsdvn("ZNSL", "ZN1 ", NCEN[1], 2); // Slices
672 pMC->Gsdvn("ZNST", "ZNSL", NCEN[0], 1); // Sticks
674 // --- Position the empty grooves in the sticks
675 pMC->Gspos("ZNGR", 1, "ZNST", 0., 0., 0., 0, "ONLY");
676 // --- Position the fibers in the grooves
677 pMC->Gspos("ZNFI", 1, "ZNGR", 0., 0., 0., 0, "ONLY");
678 // --- Position the neutron calorimeter in ZDC
679 pMC->Gspos("ZNEU", 1, "ZDC ", ZNPOS[0], ZNPOS[1], ZNPOS[2] + HDZN[2], 0, "ONLY");
681 // Proton calorimeter
683 pMC->Gsvolu("ZPRO", "BOX ", idtmed[801], HDZP, 3); // Passive material
684 pMC->Gsvolu("ZPFI", "TUBE", idtmed[802], FIZP, 3); // Active material
685 pMC->Gsvolu("ZPGR", "BOX ", idtmed[889], GRZP, 3); // Empty grooves
687 // Divide ZPRO in towers
688 // (for hits purposes)
690 pMC->Gsdvn("ZPTX", "ZPRO", NZPTX, 1); // x-tower
691 pMC->Gsdvn("ZP1 ", "ZPTX", NZPTY, 2); // y-tower
694 // Divide ZPRO in minitowers
695 // (NCEP[0]= NUMBER OF FIBERS ALONG X-AXIS PER MINITOWER,
696 // NCEP[1]= NUMBER OF FIBERS ALONG Y-AXIS PER MINITOWER)
697 // (one fiber per minitower)
699 pMC->Gsdvn("ZPSL", "ZP1 ", NCEP[1], 2); // Slices
700 pMC->Gsdvn("ZPST", "ZPSL", NCEP[0], 1); // Sticks
702 // --- Position the empty grooves in the sticks
703 pMC->Gspos("ZPGR", 1, "ZPST", 0., 0., 0., 0, "ONLY");
704 // --- Position the fibers in the grooves
705 pMC->Gspos("ZPFI", 1, "ZPGR", 0., 0., 0., 0, "ONLY");
706 // --- Position the proton calorimeter in ZDC
707 pMC->Gspos("ZPRO", 1, "ZDC ", ZPPOS[0], ZPPOS[1], ZPPOS[2] + HDZP[2], 0, "ONLY");
711 //_____________________________________________________________________________
712 void AliZDCv1::DrawDetector()
715 // Draw a shaded view of the Zero Degree Calorimeter version 1
718 AliMC* pMC = AliMC::GetMC();
720 // Set everything unseen
721 pMC->Gsatt("*", "seen", -1);
723 // Set ALIC mother transparent
724 pMC->Gsatt("ALIC","SEEN",0);
726 // Set the volumes visible
727 pMC->Gsatt("ZDC","SEEN",0);
728 pMC->Gsatt("P001","SEEN",1);
729 pMC->Gsatt("P002","SEEN",1);
730 pMC->Gsatt("P003","SEEN",1);
731 pMC->Gsatt("P004","SEEN",1);
732 pMC->Gsatt("P005","SEEN",1);
733 pMC->Gsatt("P006","SEEN",1);
734 pMC->Gsatt("P007","SEEN",1);
735 pMC->Gsatt("P008","SEEN",1);
736 pMC->Gsatt("P009","SEEN",1);
737 pMC->Gsatt("P010","SEEN",1);
738 pMC->Gsatt("P011","SEEN",1);
739 pMC->Gsatt("P012","SEEN",1);
740 pMC->Gsatt("P013","SEEN",1);
741 pMC->Gsatt("P014","SEEN",1);
742 pMC->Gsatt("P015","SEEN",1);
743 pMC->Gsatt("P016","SEEN",1);
744 pMC->Gsatt("P017","SEEN",1);
745 pMC->Gsatt("P018","SEEN",1);
746 pMC->Gsatt("P019","SEEN",1);
747 pMC->Gsatt("P020","SEEN",1);
748 pMC->Gsatt("P021","SEEN",1);
749 pMC->Gsatt("Q021","SEEN",1);
750 pMC->Gsatt("R021","SEEN",1);
751 pMC->Gsatt("P022","SEEN",1);
752 pMC->Gsatt("P023","SEEN",1);
753 pMC->Gsatt("D1 ","SEEN",1);
754 pMC->Gsatt("YD1 ","SEEN",1);
755 pMC->Gsatt("D2 ","SEEN",1);
756 pMC->Gsatt("YD2 ","SEEN",1);
757 pMC->Gsatt("MCBW","SEEN",1);
758 pMC->Gsatt("YMCB","SEEN",1);
759 pMC->Gsatt("MQXL","SEEN",1);
760 pMC->Gsatt("YMQL","SEEN",1);
761 pMC->Gsatt("MQX","SEEN",1);
762 pMC->Gsatt("YMQ","SEEN",1);
763 pMC->Gsatt("D1","SEEN",1);
764 pMC->Gsatt("YD1","SEEN",1);
765 pMC->Gsatt("D2","SEEN",1);
766 pMC->Gsatt("YD2","SEEN",1);
767 pMC->Gsatt("ZNEU","SEEN",0);
768 pMC->Gsatt("ZNFI","SEEN",0);
769 pMC->Gsatt("ZNGR","SEEN",0);
770 pMC->Gsatt("ZNTX","SEEN",0);
771 pMC->Gsatt("ZN1 ","COLO",2);
772 pMC->Gsatt("ZN1 ","SEEN",1);
773 pMC->Gsatt("ZNSL","SEEN",0);
774 pMC->Gsatt("ZNST","SEEN",0);
775 pMC->Gsatt("ZPRO","SEEN",0);
776 pMC->Gsatt("ZPFI","SEEN",0);
777 pMC->Gsatt("ZPGR","SEEN",0);
778 pMC->Gsatt("ZPTX","SEEN",0);
779 pMC->Gsatt("ZP1 ","SEEN",1);
780 pMC->Gsatt("ZPSL","SEEN",0);
781 pMC->Gsatt("ZPST","SEEN",0);
784 pMC->Gdopt("hide", "on");
785 pMC->Gdopt("shad", "on");
786 pMC->Gsatt("*", "fill", 7);
787 pMC->SetClipBox(".");
788 pMC->SetClipBox("*", 0, 100, -100, 100, 12000, 16000);
790 pMC->Gdraw("alic", 40, 30, 0, 488, 220, .07, .07);
791 pMC->Gdhead(1111, "Zero Degree Calorimeter Version 1");
792 pMC->Gdman(18, 4, "MAN");
795 //_____________________________________________________________________________
796 void AliZDCv1::CreateMaterials()
799 // Create Materials for the Zero Degree Calorimeter
801 // Origin : E. Scomparin
803 AliMC* pMC = AliMC::GetMC();
805 Int_t *idtmed = gAlice->Idtmed();
807 Float_t dens, ubuf[1], wmat[2];
811 Float_t z[2], epsil=0.001, stmin=0.01;
813 Float_t fieldm = gAlice->Field()->Max();
816 Float_t tmaxfd=gAlice->Field()->Max();
817 Int_t isxfld = gAlice->Field()->Integ();
820 // --- Store in UBUF r0 for nuclear radius calculation R=r0*A**1/3
824 AliMaterial(1, "TUNG", 183.85, 74., 19.3, .35, 10.3, ubuf, 1);
834 AliMixture(2, "BRASS ", a, z, dens, 2, wmat);
844 AliMixture(3, "SIO2 ", a, z, dens, -2, wmat);
848 AliMaterial(4, "LEAD", 207.19, 82., 11.35, .56, 18.5, ubuf, 1);
852 AliMaterial(5, "COPP", 63.54, 29., 8.96, 1.4, 0., ubuf, 1);
856 AliMaterial(6, "TANT", 180.95, 73., 16.65, .4, 11.9, ubuf, 1);
858 // Steel still to be added
862 AliMaterial(52, "IRON", 55.85, 26., 7.87, 1.76, 0., ubuf, 1);
864 // --- Vacuum (no magnetic field)
865 AliMaterial(90, "VOID", 1e-16, 1e-16, 1e-16, 1e16, 1e16, ubuf,0);
867 // --- Vacuum (magnetic field)
868 AliMaterial(91, "VOIM", 1e-16, 1e-16, 1e-16, 1e16, 1e16, ubuf,0);
870 // --- Air non magnetic
871 AliMaterial(92, "Air $", 14.61, 7.3, .001205, 30420., 67500., ubuf, 0);
873 // --- Definition of tracking media:
875 // --- Tungsten = 801 ;
877 // --- Fibers (SiO2) = 803 ;
879 // --- Copper = 805 ;
880 // --- Tantalum = 806 ;
883 // --- Vacuum (no field) = 890
884 // --- Vacuum (with field) = 891
885 // --- Air (no field) = 892
888 // --- Tracking media parameters
896 AliMedium(801, "ZW", 1, isvol_active, inofld, fieldm, tmaxfd, stemax, deemax, epsil, stmin);
897 AliMedium(802, "ZBRASS", 2, isvol_active, inofld, fieldm, tmaxfd, stemax, deemax, epsil, stmin);
898 AliMedium(803, "ZSIO2", 3, isvol_active, inofld, fieldm, tmaxfd, stemax, deemax, epsil, stmin);
899 AliMedium(804, "ZLEAD", 4, isvol_active, inofld, fieldm, tmaxfd, stemax, deemax, epsil, stmin);
900 AliMedium(805, "ZCOPP", 5, isvol_active, inofld, fieldm, tmaxfd, stemax, deemax, epsil, stmin);
901 AliMedium(806, "ZTANT", 6, isvol_active, inofld, fieldm, tmaxfd, stemax, deemax, epsil, stmin);
902 AliMedium(852, "ZIRON", 52, isvol, inofld, fieldm, tmaxfd, stemax, deemax, epsil, stmin);
903 AliMedium(890, "ZVOID", 90, isvol, inofld, fieldm, tmaxfd, stemax, deemax, epsil, stmin);
904 AliMedium(892, "Air", 92, 0, inofld, fieldm, tmaxfd, stemax,deemax, epsil, stmin);
907 // AliMedium(891, "ZVOIM", 91, isvol, isxfld, fieldm, tmaxfd, stemax, deemax, epsil, stmin);
908 AliMedium(891, "ZVOIM", 91, isvol, isxfld, fieldm, tmaxfd, stemax, deemax, epsil, stmin);
910 // Thresholds for showering in the ZDCs
913 pMC->Gstpar(idtmed[i-1], "CUTGAM", .01);
914 pMC->Gstpar(idtmed[i-1], "CUTELE", .01);
915 pMC->Gstpar(idtmed[i-1], "CUTNEU", .1);
916 pMC->Gstpar(idtmed[i-1], "CUTHAD", .1);
918 pMC->Gstpar(idtmed[i-1], "CUTGAM", .01);
919 pMC->Gstpar(idtmed[i-1], "CUTELE", .01);
920 pMC->Gstpar(idtmed[i-1], "CUTNEU", .1);
921 pMC->Gstpar(idtmed[i-1], "CUTHAD", .1);
923 // Avoid too detailed showering along the beam line
926 pMC->Gstpar(idtmed[i-1], "CUTGAM", .1);
927 pMC->Gstpar(idtmed[i-1], "CUTELE", .1);
928 pMC->Gstpar(idtmed[i-1], "CUTNEU", 1.);
929 pMC->Gstpar(idtmed[i-1], "CUTHAD", 1.);
931 // Avoid interaction in fibers (only energy loss allowed)
933 pMC->Gstpar(idtmed[i-1], "DCAY", 0.);
934 pMC->Gstpar(idtmed[i-1], "MULS", 0.);
935 pMC->Gstpar(idtmed[i-1], "PFIS", 0.);
936 pMC->Gstpar(idtmed[i-1], "MUNU", 0.);
937 pMC->Gstpar(idtmed[i-1], "LOSS", 1.);
938 pMC->Gstpar(idtmed[i-1], "PHOT", 0.);
939 pMC->Gstpar(idtmed[i-1], "COMP", 0.);
940 pMC->Gstpar(idtmed[i-1], "PAIR", 0.);
941 pMC->Gstpar(idtmed[i-1], "BREM", 0.);
942 pMC->Gstpar(idtmed[i-1], "DRAY", 0.);
943 pMC->Gstpar(idtmed[i-1], "ANNI", 0.);
944 pMC->Gstpar(idtmed[i-1], "HADR", 0.);
949 //_____________________________________________________________________________
950 AliZDChit::AliZDChit(Int_t shunt, Int_t track, Int_t *vol, Float_t *hits):
954 // Add a Zero Degree Calorimeter hit
957 for (i=0;i<4;i++) fVolume[i] = vol[i];