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="picts/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="picts/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="picts/AliZDCv1.gif">
269 <img src="picts/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
284 Float_t HDZN[3] = {4.0,4.0,50.0};
285 Float_t HDZP[3] = {10.0,6.0,75.0};
286 // Coordinates of the center of the ZDC front face in the MRS
287 Float_t ZNPOS[3] = {-0.5,0.,11613.};
288 Float_t ZPPOS[3] = {-21.0,0.,11563.};
289 Float_t FIZN[3] = {0.,0.01825,50.0};
290 Float_t FIZP[3] = {0.,0.01825,75.0};
291 Float_t GRZN[3] = {0.025,0.025,50.0};
292 Float_t GRZP[3] = {0.040,0.040,75.0};
293 Int_t NCEN[3] = {11,11,0};
294 Int_t NCEP[3] = {10,10,0};
297 Float_t zq, conpar[9], tubpar[3];
302 Int_t *idtmed = fIdtmed->GetArray()-799;
304 // -- Mother of the ZDC
314 gMC->Gsvolu("ZDC ", "PCON", idtmed[891], conpar, 9);
315 gMC->Gspos("ZDC ", 1, "ALIC", 0., 0., 0., 0, "ONLY");
316 // -- FIRST SECTION OF THE BEAM PIPE (from compensator dipole to
324 gMC->Gsvolu("P001", "TUBE", idtmed[851], tubpar, 3);
325 gMC->Gspos("P001", 1, "ZDC ", 0., 0., tubpar[2] + zd1, 0, "ONLY");
327 //-- SECOND SECTION OF THE BEAM PIPE (FROM THE END OF D1 TO THE BEGINNING OF
335 gMC->Gsvolu("P002", "TUBE", idtmed[851], tubpar, 3);
336 gMC->Gspos("P002", 1, "ZDC ", 0., 0., tubpar[2] + zd1, 0, "ONLY");
338 zd1 += tubpar[2] * 2.;
343 gMC->Gsvolu("P003", "TUBE", idtmed[851], tubpar, 3);
344 gMC->Gspos("P003", 1, "ZDC ", 0., 0., tubpar[2] + zd1, 0, "ONLY");
346 zd1 += tubpar[2] * 2.;
353 gMC->Gsvolu("P004", "CONE", idtmed[851], conpar, 5);
354 gMC->Gspos("P004", 1, "ZDC ", 0., 0., conpar[0] + zd1, 0, "ONLY");
356 zd1 += conpar[0] * 2.;
361 gMC->Gsvolu("P005", "TUBE", idtmed[851], tubpar, 3);
362 gMC->Gspos("P005", 1, "ZDC ", 0., 0., tubpar[2] + zd1, 0, "ONLY");
364 zd1 += tubpar[2] * 2.;
371 gMC->Gsvolu("P006", "CONE", idtmed[851], conpar, 5);
372 gMC->Gspos("P006", 1, "ZDC ", 0., 0., conpar[0] + zd1, 0, "ONLY");
374 zd1 += conpar[0] * 2.;
379 gMC->Gsvolu("P007", "TUBE", idtmed[851], tubpar, 3);
380 gMC->Gspos("P007", 1, "ZDC ", 0., 0., tubpar[2] + zd1, 0, "ONLY");
382 zd1 += tubpar[2] * 2.;
389 gMC->Gsvolu("P008", "CONE", idtmed[851], conpar, 5);
390 gMC->Gspos("P008", 1, "ZDC ", 0., 0., conpar[0] + zd1, 0, "ONLY");
392 zd1 += conpar[0] * 2.;
396 tubpar[2] = 205.8/2.;
397 gMC->Gsvolu("P009", "TUBE", idtmed[851], tubpar, 3);
398 gMC->Gspos("P009", 1, "ZDC ", 0., 0., tubpar[2] + zd1, 0, "ONLY");
400 zd1 += tubpar[2] * 2.;
405 gMC->Gsvolu("P010", "TUBE", idtmed[851], tubpar, 3);
406 gMC->Gspos("P010", 1, "ZDC ", 0., 0., tubpar[2] + zd1, 0, "ONLY");
408 zd1 += tubpar[2] * 2.;
412 tubpar[2] = 757.5/2.;
413 gMC->Gsvolu("P011", "TUBE", idtmed[851], tubpar, 3);
414 gMC->Gspos("P011", 1, "ZDC ", 0., 0., tubpar[2] + zd1, 0, "ONLY");
416 zd1 += tubpar[2] * 2.;
423 gMC->Gsvolu("P012", "CONE", idtmed[851], conpar, 5);
424 gMC->Gspos("P012", 1, "ZDC ", 0., 0., conpar[0] + zd1, 0, "ONLY");
426 zd1 += conpar[0] * 2.;
431 gMC->Gsvolu("P013", "TUBE", idtmed[851], tubpar, 3);
432 gMC->Gspos("P013", 1, "ZDC ", 0., 0., tubpar[2] + zd1, 0, "ONLY");
434 zd1 += tubpar[2] * 2.;
439 gMC->Gsvolu("P014", "TUBE", idtmed[851], tubpar, 3);
440 gMC->Gspos("P014", 1, "ZDC ", 0., 0., tubpar[2] + zd1, 0, "ONLY");
442 zd1 += tubpar[2] * 2.;
449 gMC->Gsvolu("P015", "CONE", idtmed[851], conpar, 5);
450 gMC->Gspos("P015", 1, "ZDC ", 0., 0., conpar[0] + zd1, 0, "ONLY");
452 zd1 += conpar[0] * 2.;
457 gMC->Gsvolu("P016", "TUBE", idtmed[851], tubpar, 3);
458 gMC->Gspos("P016", 1, "ZDC ", 0., 0., tubpar[2] + zd1, 0, "ONLY");
460 zd1 += tubpar[2] * 2.;
465 gMC->Gsvolu("P017", "TUBE", idtmed[851], tubpar, 3);
466 gMC->Gspos("P017", 1, "ZDC ", 0., 0., tubpar[2] + zd1, 0, "ONLY");
468 zd1 += tubpar[2] * 2.;
475 gMC->Gsvolu("P018", "CONE", idtmed[851], conpar, 5);
476 gMC->Gspos("P018", 1, "ZDC ", 0., 0., conpar[0] + zd1, 0, "ONLY");
478 zd1 += conpar[0] * 2.;
483 gMC->Gsvolu("P019", "TUBE", idtmed[851], tubpar, 3);
484 gMC->Gspos("P019", 1, "ZDC ", 0., 0., tubpar[2] + zd1, 0, "ONLY");
486 zd1 += tubpar[2] * 2.;
491 gMC->Gsvolu("P020", "TUBE", idtmed[851], tubpar, 3);
492 gMC->Gspos("P020", 1, "ZDC ", 0., 0., tubpar[2] + zd1, 0, "ONLY");
494 zd1 += tubpar[2] * 2.;
499 gMC->Gsvolu("P021", "TUBE", idtmed[851], tubpar, 3);
500 gMC->Gspos("P021", 1, "ZDC ", 0., 0., tubpar[2] + zd1, 0, "ONLY");
502 zd1 += tubpar[2] * 2.;
507 gMC->Gsvolu("Q021", "TUBE", idtmed[889], tubpar, 3);
511 gMC->Gsvolu("R021", "TUBE", idtmed[889], tubpar, 3);
512 // -- POSITION Q021 INSIDE P021
513 gMC->Gspos("Q021", 1, "P021", -7.7, 0., 0., 0, "ONLY");
514 // -- POSITION R020 INSIDE P020
515 gMC->Gspos("R021", 1, "P021", 7.7, 0., 0., 0, "ONLY");
517 // -- BEAM PIPES BETWEEN END OF CONICAL PIPE AND BEGINNING OF D2
520 tubpar[2] = 645.*0.5;
521 gMC->Gsvolu("P022", "TUBE", idtmed[851], tubpar, 3);
524 tubpar[2] = 645.*0.5;
525 gMC->Gsvolu("P023", "TUBE", idtmed[851], tubpar, 3);
528 AliMatrix(im1, 90.-0.071, 0., 90., 90., .071, 180.);
529 angle = .071*kDegrad;
530 gMC->Gspos("P022", 1, "ZDC ", TMath::Sin(angle) * 322.5 - 9.7 +
531 TMath::Sin(angle) * 472.5, 0., tubpar[2] + zd1, im1, "ONLY");
532 AliMatrix(im2, 90.+0.071, 0., 90., 90., .071, 0.);
533 gMC->Gspos("P023", 1, "ZDC ", 9.7 - TMath::Sin(angle) * 322.5, 0.,
534 tubpar[2] + zd1, im2, "ONLY");
536 // -- END OF BEAM PIPE VOLUME DEFINITION. MAGNET DEFINITION FOLLOWS
539 // -- COMPENSATOR DIPOLE (MCBWA)
540 // GAP (VACUUM WITH MAGNETIC FIELD)
545 gMC->Gsvolu("MCBW", "TUBE", idtmed[890], tubpar, 3);
546 gMC->Gspos("MCBW", 1, "ZDC ", 0., 0., tubpar[2] + 1920., 0, "ONLY");
548 // -- YOKE (IRON WITHOUT MAGNETIC FIELD)
553 gMC->Gsvolu("YMCB", "TUBE", idtmed[851], tubpar, 3);
554 gMC->Gspos("YMCB", 1, "ZDC ", 0., 0., tubpar[2] + 1920., 0, "ONLY");
560 // -- DEFINE MQXL AND MQX QUADRUPOLE ELEMENT
563 // -- GAP (VACUUM WITH MAGNETIC FIELD)
568 gMC->Gsvolu("MQXL", "TUBE", idtmed[890], tubpar, 3);
575 gMC->Gsvolu("YMQL", "TUBE", idtmed[851], tubpar, 3);
577 gMC->Gspos("MQXL", 1, "ZDC ", 0., 0., tubpar[2] + zq, 0, "ONLY");
578 gMC->Gspos("YMQL", 1, "ZDC ", 0., 0., tubpar[2] + zq, 0, "ONLY");
580 gMC->Gspos("MQXL", 2, "ZDC ", 0., 0., tubpar[2] + zq + 2430., 0, "ONLY");
581 gMC->Gspos("YMQL", 2, "ZDC ", 0., 0., tubpar[2] + zq + 2430., 0, "ONLY");
584 // -- GAP (VACUUM WITH MAGNETIC FIELD)
589 gMC->Gsvolu("MQX ", "TUBE", idtmed[890], tubpar, 3);
596 gMC->Gsvolu("YMQ ", "TUBE", idtmed[851], tubpar, 3);
598 gMC->Gspos("MQX ", 1, "ZDC ", 0., 0., tubpar[2] + zq + 880., 0, "ONLY");
599 gMC->Gspos("YMQ ", 1, "ZDC ", 0., 0., tubpar[2] + zq + 880., 0, "ONLY");
601 gMC->Gspos("MQX ", 2, "ZDC ", 0., 0., tubpar[2] + zq + 1530., 0, "ONLY");
602 gMC->Gspos("YMQ ", 2, "ZDC ", 0., 0., tubpar[2] + zq + 1530., 0, "ONLY");
604 // -- SEPARATOR DIPOLE D1
608 // -- GAP (VACUUM WITH MAGNETIC FIELD)
613 gMC->Gsvolu("D1 ", "TUBE", idtmed[890], tubpar, 3);
620 gMC->Gsvolu("YD1 ", "TUBE", idtmed[851], tubpar, 3);
622 gMC->Gspos("YD1 ", 1, "ZDC ", 0., 0., tubpar[2] + zd1, 0, "ONLY");
623 gMC->Gspos("D1 ", 1, "YD1 ", 0., 0., 0., 0, "ONLY");
629 // -- GAP (VACUUM WITH MAGNETIC FIELD)
634 gMC->Gsvolu("D2 ", "TUBE", idtmed[890], tubpar, 3);
641 gMC->Gsvolu("YD2 ", "TUBE", idtmed[851], tubpar, 3);
643 gMC->Gspos("YD2 ", 1, "ZDC ", 0., 0., tubpar[2] + zd2, 0, "ONLY");
645 gMC->Gspos("D2 ", 1, "YD2 ", -9.7, 0., 0., 0, "ONLY");
646 gMC->Gspos("D2 ", 2, "YD2 ", 9.7, 0., 0., 0, "ONLY");
648 // -- END OF MAGNET DEFINITION
650 // ----------------- Hadronic calorimeters -------------------- *
652 // Neutron calorimeter
654 gMC->Gsvolu("ZNEU", "BOX ", idtmed[800], HDZN, 3); // Passive material
655 gMC->Gsvolu("ZNFI", "TUBE", idtmed[802], FIZN, 3); // Active material
656 gMC->Gsvolu("ZNGR", "BOX ", idtmed[889], GRZN, 3); // Empty grooves
658 // Divide ZNEU in towers
659 // (for hits purposes)
661 gMC->Gsdvn("ZNTX", "ZNEU", NZNTX, 1); // x-tower
662 gMC->Gsdvn("ZN1 ", "ZNTX", NZNTY, 2); // y-tower
664 // Divide ZNEU in minitowers
665 // (NCEN(1)= NUMBER OF FIBERS PER TOWER ALONG X-AXIS,
666 // NCEN(2)= NUMBER OF FIBERS PER TOWER ALONG Y-AXIS)
667 // (one fiber per minitower)
669 gMC->Gsdvn("ZNSL", "ZN1 ", NCEN[1], 2); // Slices
670 gMC->Gsdvn("ZNST", "ZNSL", NCEN[0], 1); // Sticks
672 // --- Position the empty grooves in the sticks
673 gMC->Gspos("ZNGR", 1, "ZNST", 0., 0., 0., 0, "ONLY");
674 // --- Position the fibers in the grooves
675 gMC->Gspos("ZNFI", 1, "ZNGR", 0., 0., 0., 0, "ONLY");
676 // --- Position the neutron calorimeter in ZDC
677 gMC->Gspos("ZNEU", 1, "ZDC ", ZNPOS[0], ZNPOS[1], ZNPOS[2] + HDZN[2], 0, "ONLY");
679 // Proton calorimeter
681 gMC->Gsvolu("ZPRO", "BOX ", idtmed[801], HDZP, 3); // Passive material
682 gMC->Gsvolu("ZPFI", "TUBE", idtmed[802], FIZP, 3); // Active material
683 gMC->Gsvolu("ZPGR", "BOX ", idtmed[889], GRZP, 3); // Empty grooves
685 // Divide ZPRO in towers
686 // (for hits purposes)
688 gMC->Gsdvn("ZPTX", "ZPRO", NZPTX, 1); // x-tower
689 gMC->Gsdvn("ZP1 ", "ZPTX", NZPTY, 2); // y-tower
692 // Divide ZPRO in minitowers
693 // (NCEP[0]= NUMBER OF FIBERS ALONG X-AXIS PER MINITOWER,
694 // NCEP[1]= NUMBER OF FIBERS ALONG Y-AXIS PER MINITOWER)
695 // (one fiber per minitower)
697 gMC->Gsdvn("ZPSL", "ZP1 ", NCEP[1], 2); // Slices
698 gMC->Gsdvn("ZPST", "ZPSL", NCEP[0], 1); // Sticks
700 // --- Position the empty grooves in the sticks
701 gMC->Gspos("ZPGR", 1, "ZPST", 0., 0., 0., 0, "ONLY");
702 // --- Position the fibers in the grooves
703 gMC->Gspos("ZPFI", 1, "ZPGR", 0., 0., 0., 0, "ONLY");
704 // --- Position the proton calorimeter in ZDC
705 gMC->Gspos("ZPRO", 1, "ZDC ", ZPPOS[0], ZPPOS[1], ZPPOS[2] + HDZP[2], 0, "ONLY");
709 //_____________________________________________________________________________
710 void AliZDCv1::DrawModule()
713 // Draw a shaded view of the Zero Degree Calorimeter version 1
716 // Set everything unseen
717 gMC->Gsatt("*", "seen", -1);
719 // Set ALIC mother transparent
720 gMC->Gsatt("ALIC","SEEN",0);
722 // Set the volumes visible
723 gMC->Gsatt("ZDC","SEEN",0);
724 gMC->Gsatt("P001","SEEN",1);
725 gMC->Gsatt("P002","SEEN",1);
726 gMC->Gsatt("P003","SEEN",1);
727 gMC->Gsatt("P004","SEEN",1);
728 gMC->Gsatt("P005","SEEN",1);
729 gMC->Gsatt("P006","SEEN",1);
730 gMC->Gsatt("P007","SEEN",1);
731 gMC->Gsatt("P008","SEEN",1);
732 gMC->Gsatt("P009","SEEN",1);
733 gMC->Gsatt("P010","SEEN",1);
734 gMC->Gsatt("P011","SEEN",1);
735 gMC->Gsatt("P012","SEEN",1);
736 gMC->Gsatt("P013","SEEN",1);
737 gMC->Gsatt("P014","SEEN",1);
738 gMC->Gsatt("P015","SEEN",1);
739 gMC->Gsatt("P016","SEEN",1);
740 gMC->Gsatt("P017","SEEN",1);
741 gMC->Gsatt("P018","SEEN",1);
742 gMC->Gsatt("P019","SEEN",1);
743 gMC->Gsatt("P020","SEEN",1);
744 gMC->Gsatt("P021","SEEN",1);
745 gMC->Gsatt("Q021","SEEN",1);
746 gMC->Gsatt("R021","SEEN",1);
747 gMC->Gsatt("P022","SEEN",1);
748 gMC->Gsatt("P023","SEEN",1);
749 gMC->Gsatt("D1 ","SEEN",1);
750 gMC->Gsatt("YD1 ","SEEN",1);
751 gMC->Gsatt("D2 ","SEEN",1);
752 gMC->Gsatt("YD2 ","SEEN",1);
753 gMC->Gsatt("MCBW","SEEN",1);
754 gMC->Gsatt("YMCB","SEEN",1);
755 gMC->Gsatt("MQXL","SEEN",1);
756 gMC->Gsatt("YMQL","SEEN",1);
757 gMC->Gsatt("MQX","SEEN",1);
758 gMC->Gsatt("YMQ","SEEN",1);
759 gMC->Gsatt("D1","SEEN",1);
760 gMC->Gsatt("YD1","SEEN",1);
761 gMC->Gsatt("D2","SEEN",1);
762 gMC->Gsatt("YD2","SEEN",1);
763 gMC->Gsatt("ZNEU","SEEN",0);
764 gMC->Gsatt("ZNFI","SEEN",0);
765 gMC->Gsatt("ZNGR","SEEN",0);
766 gMC->Gsatt("ZNTX","SEEN",0);
767 gMC->Gsatt("ZN1 ","COLO",2);
768 gMC->Gsatt("ZN1 ","SEEN",1);
769 gMC->Gsatt("ZNSL","SEEN",0);
770 gMC->Gsatt("ZNST","SEEN",0);
771 gMC->Gsatt("ZPRO","SEEN",0);
772 gMC->Gsatt("ZPFI","SEEN",0);
773 gMC->Gsatt("ZPGR","SEEN",0);
774 gMC->Gsatt("ZPTX","SEEN",0);
775 gMC->Gsatt("ZP1 ","SEEN",1);
776 gMC->Gsatt("ZPSL","SEEN",0);
777 gMC->Gsatt("ZPST","SEEN",0);
780 gMC->Gdopt("hide", "on");
781 gMC->Gdopt("shad", "on");
782 gMC->Gsatt("*", "fill", 7);
783 gMC->SetClipBox(".");
784 gMC->SetClipBox("*", 0, 100, -100, 100, 12000, 16000);
786 gMC->Gdraw("alic", 40, 30, 0, 488, 220, .07, .07);
787 gMC->Gdhead(1111, "Zero Degree Calorimeter Version 1");
788 gMC->Gdman(18, 4, "MAN");
791 //_____________________________________________________________________________
792 void AliZDCv1::CreateMaterials()
795 // Create Materials for the Zero Degree Calorimeter
797 // Origin : E. Scomparin
799 Int_t *idtmed = fIdtmed->GetArray()-799;
801 Float_t dens, ubuf[1], wmat[2];
805 Float_t z[2], epsil=0.001, stmin=0.01;
807 Float_t fieldm = gAlice->Field()->Max();
810 Float_t tmaxfd=gAlice->Field()->Max();
811 Int_t isxfld = gAlice->Field()->Integ();
814 // --- Store in UBUF r0 for nuclear radius calculation R=r0*A**1/3
818 AliMaterial(1, "TUNG", 183.85, 74., 19.3, .35, 10.3, ubuf, 1);
828 AliMixture(2, "BRASS ", a, z, dens, 2, wmat);
838 AliMixture(3, "SIO2 ", a, z, dens, -2, wmat);
842 AliMaterial(4, "LEAD", 207.19, 82., 11.35, .56, 18.5, ubuf, 1);
846 AliMaterial(5, "COPP", 63.54, 29., 8.96, 1.4, 0., ubuf, 1);
850 AliMaterial(6, "TANT", 180.95, 73., 16.65, .4, 11.9, ubuf, 1);
852 // Steel still to be added
856 AliMaterial(52, "IRON", 55.85, 26., 7.87, 1.76, 0., ubuf, 1);
858 // --- Vacuum (no magnetic field)
859 AliMaterial(90, "VOID", 1e-16, 1e-16, 1e-16, 1e16, 1e16, ubuf,0);
861 // --- Vacuum (magnetic field)
862 AliMaterial(91, "VOIM", 1e-16, 1e-16, 1e-16, 1e16, 1e16, ubuf,0);
864 // --- Air non magnetic
865 AliMaterial(92, "Air $", 14.61, 7.3, .001205, 30420., 67500., ubuf, 0);
867 // --- Definition of tracking media:
869 // --- Tungsten = 801 ;
871 // --- Fibers (SiO2) = 803 ;
873 // --- Copper = 805 ;
874 // --- Tantalum = 806 ;
877 // --- Vacuum (no field) = 890
878 // --- Vacuum (with field) = 891
879 // --- Air (no field) = 892
882 // --- Tracking media parameters
890 AliMedium(1, "ZW", 1, isvol_active, inofld, fieldm, tmaxfd, stemax, deemax, epsil, stmin);
891 AliMedium(2, "ZBRASS", 2, isvol_active, inofld, fieldm, tmaxfd, stemax, deemax, epsil, stmin);
892 AliMedium(3, "ZSIO2", 3, isvol_active, inofld, fieldm, tmaxfd, stemax, deemax, epsil, stmin);
893 AliMedium(4, "ZLEAD", 4, isvol_active, inofld, fieldm, tmaxfd, stemax, deemax, epsil, stmin);
894 AliMedium(5, "ZCOPP", 5, isvol_active, inofld, fieldm, tmaxfd, stemax, deemax, epsil, stmin);
895 AliMedium(6, "ZTANT", 6, isvol_active, inofld, fieldm, tmaxfd, stemax, deemax, epsil, stmin);
896 AliMedium(52, "ZIRON", 52, isvol, inofld, fieldm, tmaxfd, stemax, deemax, epsil, stmin);
897 AliMedium(90, "ZVOID", 90, isvol, inofld, fieldm, tmaxfd, stemax, deemax, epsil, stmin);
898 AliMedium(92, "Air", 92, 0, inofld, fieldm, tmaxfd, stemax,deemax, epsil, stmin);
901 // AliMedium(91, "ZVOIM", 91, isvol, isxfld, fieldm, tmaxfd, stemax, deemax, epsil, stmin);
902 AliMedium(91, "ZVOIM", 91, isvol, isxfld, fieldm, tmaxfd, stemax, deemax, epsil, stmin);
904 // Thresholds for showering in the ZDCs
907 gMC->Gstpar(idtmed[i-1], "CUTGAM", .01);
908 gMC->Gstpar(idtmed[i-1], "CUTELE", .01);
909 gMC->Gstpar(idtmed[i-1], "CUTNEU", .1);
910 gMC->Gstpar(idtmed[i-1], "CUTHAD", .1);
912 gMC->Gstpar(idtmed[i-1], "CUTGAM", .01);
913 gMC->Gstpar(idtmed[i-1], "CUTELE", .01);
914 gMC->Gstpar(idtmed[i-1], "CUTNEU", .1);
915 gMC->Gstpar(idtmed[i-1], "CUTHAD", .1);
917 // Avoid too detailed showering along the beam line
920 gMC->Gstpar(idtmed[i-1], "CUTGAM", .1);
921 gMC->Gstpar(idtmed[i-1], "CUTELE", .1);
922 gMC->Gstpar(idtmed[i-1], "CUTNEU", 1.);
923 gMC->Gstpar(idtmed[i-1], "CUTHAD", 1.);
925 // Avoid interaction in fibers (only energy loss allowed)
927 gMC->Gstpar(idtmed[i-1], "DCAY", 0.);
928 gMC->Gstpar(idtmed[i-1], "MULS", 0.);
929 gMC->Gstpar(idtmed[i-1], "PFIS", 0.);
930 gMC->Gstpar(idtmed[i-1], "MUNU", 0.);
931 gMC->Gstpar(idtmed[i-1], "LOSS", 1.);
932 gMC->Gstpar(idtmed[i-1], "PHOT", 0.);
933 gMC->Gstpar(idtmed[i-1], "COMP", 0.);
934 gMC->Gstpar(idtmed[i-1], "PAIR", 0.);
935 gMC->Gstpar(idtmed[i-1], "BREM", 0.);
936 gMC->Gstpar(idtmed[i-1], "DRAY", 0.);
937 gMC->Gstpar(idtmed[i-1], "ANNI", 0.);
938 gMC->Gstpar(idtmed[i-1], "HADR", 0.);
943 //_____________________________________________________________________________
944 AliZDChit::AliZDChit(Int_t shunt, Int_t track, Int_t *vol, Float_t *hits):
948 // Add a Zero Degree Calorimeter hit
951 for (i=0;i<4;i++) fVolume[i] = vol[i];