1 /**************************************************************************
2 * Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
4 * Author: The ALICE Off-line Project. *
5 * Contributors are mentioned in the code where appropriate. *
7 * Permission to use, copy, modify and distribute this software and its *
8 * documentation strictly for non-commercial purposes is hereby granted *
9 * without fee, provided that the above copyright notice appears in all *
10 * copies and that both the copyright notice and this permission notice *
11 * appear in the supporting documentation. The authors make no claims *
12 * about the suitability of this software for any purpose. It is *
13 * provided "as is" without express or implied warranty. *
14 **************************************************************************/
18 Revision 1.4 2000/08/24 09:23:59 hristov
19 Bug in ZDC geometry corrected by E.Scomparin
21 Revision 1.3 2000/07/12 06:59:16 fca
22 Fixing dimension of hits array
24 Revision 1.2 2000/07/11 11:12:34 fca
25 Some syntax corrections for non standard HP aCC
27 Revision 1.1 2000/07/10 13:58:01 fca
28 New version of ZDC from E.Scomparin & C.Oppedisano
30 Revision 1.7 2000/01/19 17:17:40 fca
32 Revision 1.6 1999/09/29 09:24:35 fca
33 Introduction of the Copyright and cvs Log
37 ///////////////////////////////////////////////////////////////////////////////
39 // Zero Degree Calorimeter //
40 // This class contains the basic functions for the Time Of Flight //
41 // detector. Functions specific to one particular geometry are //
42 // contained in the derived classes //
44 ///////////////////////////////////////////////////////////////////////////////
55 #include "AliCallf77.h"
63 ///////////////////////////////////////////////////////////////////////////////
65 // Zero Degree Calorimeter version 1 //
67 ///////////////////////////////////////////////////////////////////////////////
69 //_____________________________________________________________________________
70 AliZDCv1::AliZDCv1() : AliZDC()
73 // Default constructor for Zero Degree Calorimeter
82 //_____________________________________________________________________________
83 AliZDCv1::AliZDCv1(const char *name, const char *title)
87 // Standard constructor for Zero Degree Calorimeter
96 //_____________________________________________________________________________
97 void AliZDCv1::CreateGeometry()
100 // Create the geometry for the Zero Degree Calorimeter version 1
101 //* Initialize COMMON block ZDC_CGEOM
108 //_____________________________________________________________________________
109 void AliZDCv1::CreateBeamLine()
113 Float_t zq, conpar[9], elpar[3], tubpar[3];
118 Int_t *idtmed = fIdtmed->GetArray();
120 // -- Mother of the ZDC
131 gMC->Gsvolu("ZDC ", "PCON", idtmed[10], conpar, 9);
132 gMC->Gspos("ZDC ", 1, "ALIC", 0., 0., 0., 0, "ONLY");
134 // -- FIRST SECTION OF THE BEAM PIPE (from compensator dipole to
141 tubpar[2] = 3916.7/2.;
142 gMC->Gsvolu("P001", "TUBE", idtmed[5], tubpar, 3);
143 gMC->Gspos("P001", 1, "ZDC ", 0., 0., tubpar[2] + zd1, 0, "ONLY");
145 //-- SECOND SECTION OF THE BEAM PIPE (FROM THE END OF D1 TO THE BEGINNING OF
148 //-- FROM MAGNETIC BEGINNING OG D1 TO MAGNETIC END OF D1 + 23.5 cm
156 gMC->Gsvolu("E001", "ELTU", idtmed[5], elpar, 3);
157 gMC->Gspos("E001", 1, "ZDC ", 0., 0., elpar[2] + zd1, 0, "ONLY");
162 gMC->Gsvolu("E002", "ELTU", idtmed[10], elpar, 3);
163 gMC->Gspos("E002", 1, "E001", 0., 0., 0., 0, "ONLY");
170 gMC->Gsvolu("E003", "ELTU", idtmed[5], elpar, 3);
171 gMC->Gspos("E002", 1, "ZDC ", 0., 0., elpar[2] + zd1, 0, "ONLY");
176 gMC->Gsvolu("E004", "ELTU", idtmed[10], elpar, 3);
177 gMC->Gspos("E004", 1, "E003", 0., 0., 0., 0, "ONLY");
186 gMC->Gsvolu("C001", "CONE", idtmed[5], conpar, 5);
187 gMC->Gspos("C001", 1, "ZDC ", 0., 0., conpar[0] + zd1, 0, "ONLY");
194 gMC->Gsvolu("P002", "TUBE", idtmed[5], tubpar, 3);
195 gMC->Gspos("P002", 1, "ZDC ", 0., 0., tubpar[2] + zd1, 0, "ONLY");
197 zd1 += tubpar[2] * 2.;
202 gMC->Gsvolu("P003", "TUBE", idtmed[5], tubpar, 3);
203 gMC->Gspos("P003", 1, "ZDC ", 0., 0., tubpar[2] + zd1, 0, "ONLY");
205 zd1 += tubpar[2] * 2.;
210 gMC->Gsvolu("P004", "TUBE", idtmed[5], tubpar, 3);
211 gMC->Gspos("P004", 1, "ZDC ", 0., 0., tubpar[0] + zd1, 0, "ONLY");
213 zd1 += tubpar[2] * 2.;
218 gMC->Gsvolu("P005", "TUBE", idtmed[5], tubpar, 3);
219 gMC->Gspos("P005", 1, "ZDC ", 0., 0., tubpar[2] + zd1, 0, "ONLY");
221 zd1 += tubpar[2] * 2.;
228 gMC->Gsvolu("P006", "CONE", idtmed[5], conpar, 5);
229 gMC->Gspos("P006", 1, "ZDC ", 0., 0., conpar[0] + zd1, 0, "ONLY");
231 zd1 += conpar[0] * 2.;
236 gMC->Gsvolu("P007", "TUBE", idtmed[5], tubpar, 3);
237 gMC->Gspos("P007", 1, "ZDC ", 0., 0., tubpar[2] + zd1, 0, "ONLY");
239 zd1 += tubpar[2] * 2.;
246 gMC->Gsvolu("P008", "CONE", idtmed[5], conpar, 5);
247 gMC->Gspos("P008", 1, "ZDC ", 0., 0., conpar[0] + zd1, 0, "ONLY");
249 zd1 += conpar[0] * 2.;
253 tubpar[2] = 205.8/2.;
254 gMC->Gsvolu("P009", "TUBE", idtmed[5], tubpar, 3);
255 gMC->Gspos("P009", 1, "ZDC ", 0., 0., tubpar[2] + zd1, 0, "ONLY");
257 zd1 += tubpar[2] * 2.;
261 tubpar[2] = 505.4/2.;
262 gMC->Gsvolu("P010", "TUBE", idtmed[5], tubpar, 3);
263 gMC->Gspos("P010", 1, "ZDC ", 0., 0., tubpar[2] + zd1, 0, "ONLY");
265 zd1 += tubpar[2] * 2.;
270 gMC->Gsvolu("P011", "TUBE", idtmed[5], tubpar, 3);
271 gMC->Gspos("P011", 1, "ZDC ", 0., 0., tubpar[2] + zd1, 0, "ONLY");
273 zd1 += tubpar[2] * 2.;
277 tubpar[2] = 778.5/2.;
278 gMC->Gsvolu("P012", "TUBE", idtmed[5], tubpar, 3);
279 gMC->Gspos("P012", 1, "ZDC ", 0., 0., tubpar[2] + zd1, 0, "ONLY");
281 zd1 += tubpar[2] * 2.;
283 conpar[0] = 14.18/2.;
288 gMC->Gsvolu("P013", "CONE", idtmed[5], conpar, 5);
289 gMC->Gspos("P013", 1, "ZDC ", 0., 0., conpar[0] + zd1, 0, "ONLY");
291 zd1 += conpar[0] * 2.;
296 gMC->Gsvolu("P014", "TUBE", idtmed[5], tubpar, 3);
297 gMC->Gspos("P014", 1, "ZDC ", 0., 0., tubpar[2] + zd1, 0, "ONLY");
299 zd1 += tubpar[2] * 2.;
301 conpar[0] = 36.86/2.;
306 gMC->Gsvolu("P015", "CONE", idtmed[5], conpar, 5);
307 gMC->Gspos("P015", 1, "ZDC ", 0., 0., conpar[0] + zd1, 0, "ONLY");
309 zd1 += conpar[0] * 2.;
313 tubpar[2] = 927.3/2.;
314 gMC->Gsvolu("P016", "TUBE", idtmed[5], tubpar, 3);
315 gMC->Gspos("P016", 1, "ZDC ", 0., 0., tubpar[2] + zd1, 0, "ONLY");
317 zd1 += tubpar[2] * 2.;
322 gMC->Gsvolu("P017", "TUBE", idtmed[5], tubpar, 3);
323 gMC->Gspos("P017", 1, "ZDC ", 0., 0., tubpar[2] + zd1, 0, "ONLY");
325 zd1 += tubpar[2] * 2.;
330 gMC->Gsvolu("Q017", "TUBE", idtmed[10], tubpar, 3);
332 //-- Position Q017 inside P017
333 gMC->Gspos("Q017", 1, "P017", -7.7, 0., 0., 0, "ONLY");
338 gMC->Gsvolu("R017", "TUBE", idtmed[10], tubpar, 3);
340 //-- Position R017 inside P017
341 gMC->Gspos("R017", 1, "P017", 7.7, 0., 0., 0, "ONLY");
343 //-- BEAM PIPE BETWEEN END OF CONICAL PIPE AND BEGINNING OF D2
348 gMC->Gsvolu("P018", "TUBE", idtmed[5], tubpar, 3);
353 gMC->Gsvolu("P019", "TUBE", idtmed[5], tubpar, 3);
357 AliMatrix(im1, 90.-0.071, 0., 90., 90., .071, 180.);
358 angle = .071*kDegrad;
359 gMC->Gspos("P018", 1, "ZDC ", TMath::Sin(angle) * 645. / 2. - 9.7 +
360 TMath::Sin(angle) * 945. / 2., 0., tubpar[2] + zd1, im1, "ONLY");
361 AliMatrix(im2, 90.+0.071, 0., 90., 90., .071, 0.);
362 gMC->Gspos("P019", 1, "ZDC ", 9.7 - TMath::Sin(angle) * 645. / 2., 0.,
363 tubpar[2] + zd1, im2, "ONLY");
365 // -- END OF BEAM PIPE VOLUME DEFINITION. MAGNET DEFINITION FOLLOWS
368 // -- COMPENSATOR DIPOLE (MBXW)
369 // GAP (VACUUM WITH MAGNETIC FIELD)
374 gMC->Gsvolu("MBXW", "TUBE", idtmed[11], tubpar, 3);
375 gMC->Gspos("MBXW", 1, "ZDC ", 0., 0., tubpar[2] + 805., 0, "ONLY");
377 // -- YOKE (IRON WITHOUT MAGNETIC FIELD)
382 gMC->Gsvolu("YMBX", "TUBE", idtmed[5], tubpar, 3);
383 gMC->Gspos("YMBX", 1, "ZDC ", 0., 0., tubpar[2] + 805., 0, "ONLY");
385 // -- COMPENSATOR DIPOLE (MCBWA)
386 // GAP (VACUUM WITH MAGNETIC FIELD)
391 gMC->Gsvolu("MCBW", "TUBE", idtmed[11], tubpar, 3);
392 gMC->Gspos("MCBW", 1, "ZDC ", 0., 0., tubpar[2] + 1921.6, 0, "ONLY");
394 // -- YOKE (IRON WITHOUT MAGNETIC FIELD)
399 gMC->Gsvolu("YMCB", "TUBE", idtmed[5], tubpar, 3);
400 gMC->Gspos("YMCB", 1, "ZDC ", 0., 0., tubpar[2] + 1921.6, 0, "ONLY");
406 // -- DEFINE MQXL AND MQX QUADRUPOLE ELEMENT
409 // -- GAP (VACUUM WITH MAGNETIC FIELD)
414 gMC->Gsvolu("MQXL", "TUBE", idtmed[11], tubpar, 3);
421 gMC->Gsvolu("YMQL", "TUBE", idtmed[5], tubpar, 3);
423 gMC->Gspos("MQXL", 1, "ZDC ", 0., 0., tubpar[2] + zq, 0, "ONLY");
424 gMC->Gspos("YMQL", 1, "ZDC ", 0., 0., tubpar[2] + zq, 0, "ONLY");
426 gMC->Gspos("MQXL", 2, "ZDC ", 0., 0., tubpar[2] + zq + 2430., 0, "ONLY");
427 gMC->Gspos("YMQL", 2, "ZDC ", 0., 0., tubpar[2] + zq + 2430., 0, "ONLY");
430 // -- GAP (VACUUM WITH MAGNETIC FIELD)
435 gMC->Gsvolu("MQX ", "TUBE", idtmed[11], tubpar, 3);
442 gMC->Gsvolu("YMQ ", "TUBE", idtmed[5], tubpar, 3);
444 gMC->Gspos("MQX ", 1, "ZDC ", 0., 0., tubpar[2] + zq + 880., 0, "ONLY");
445 gMC->Gspos("YMQ ", 1, "ZDC ", 0., 0., tubpar[2] + zq + 880., 0, "ONLY");
447 gMC->Gspos("MQX ", 2, "ZDC ", 0., 0., tubpar[2] + zq + 1530., 0, "ONLY");
448 gMC->Gspos("YMQ ", 2, "ZDC ", 0., 0., tubpar[2] + zq + 1530., 0, "ONLY");
450 // -- SEPARATOR DIPOLE D1
454 // -- GAP (VACUUM WITH MAGNETIC FIELD)
459 gMC->Gsvolu("D1 ", "TUBE", idtmed[11], tubpar, 3);
466 gMC->Gsvolu("YD1 ", "TUBE", idtmed[5], tubpar, 3);
468 gMC->Gspos("YD1 ", 1, "ZDC ", 0., 0., tubpar[2] + zd1, 0, "ONLY");
469 gMC->Gspos("D1 ", 1, "YD1 ", 0., 0., 0., 0, "ONLY");
475 // -- GAP (VACUUM WITH MAGNETIC FIELD)
480 gMC->Gsvolu("D2 ", "TUBE", idtmed[11], tubpar, 3);
487 gMC->Gsvolu("YD2 ", "TUBE", idtmed[5], tubpar, 3);
489 gMC->Gspos("YD2 ", 1, "ZDC ", 0., 0., tubpar[2] + zd2, 0, "ONLY");
491 gMC->Gspos("D2 ", 1, "YD2 ", -9.7, 0., 0., 0, "ONLY");
492 gMC->Gspos("D2 ", 2, "YD2 ", 9.7, 0., 0., 0, "ONLY");
494 // -- END OF MAGNET DEFINITION
497 //_____________________________________________________________________________
498 void AliZDCv1::CreateZDC()
501 Int_t *idtmed = fIdtmed->GetArray();
503 //-- Create calorimeters geometry
505 //--> Neutron calorimeter (ZN)
507 gMC->Gsvolu("ZNEU", "BOX ", idtmed[1], fDimZN, 3); // Passive material
508 gMC->Gsvolu("ZNF1", "TUBE", idtmed[3], fFibZN, 3); // Active material
509 gMC->Gsvolu("ZNF2", "TUBE", idtmed[4], fFibZN, 3);
510 gMC->Gsvolu("ZNF3", "TUBE", idtmed[4], fFibZN, 3);
511 gMC->Gsvolu("ZNF4", "TUBE", idtmed[3], fFibZN, 3);
512 gMC->Gsvolu("ZNG1", "BOX ", idtmed[12], fGrvZN, 3); // Empty grooves
513 gMC->Gsvolu("ZNG2", "BOX ", idtmed[12], fGrvZN, 3);
514 gMC->Gsvolu("ZNG3", "BOX ", idtmed[12], fGrvZN, 3);
515 gMC->Gsvolu("ZNG4", "BOX ", idtmed[12], fGrvZN, 3);
517 // Divide ZNEU in towers (for hits purposes)
519 gMC->Gsdvn("ZNTX", "ZNEU", fTowZN[0], 1); // x-tower
520 gMC->Gsdvn("ZN1 ", "ZNTX", fTowZN[1], 2); // y-tower
522 //-- Divide ZN1 in minitowers
523 // fDivZN[0]= NUMBER OF FIBERS PER TOWER ALONG X-AXIS,
524 // fDivZN[1]= NUMBER OF FIBERS PER TOWER ALONG Y-AXIS
525 // (4 fibres per minitower)
527 gMC->Gsdvn("ZNSL", "ZN1 ", fDivZN[1], 2); // Slices
528 gMC->Gsdvn("ZNST", "ZNSL", fDivZN[0], 1); // Sticks
530 // --- Position the empty grooves in the sticks (4 grooves per stick)
531 Float_t dx = fDimZN[0] / fDivZN[0] / 4.;
532 Float_t dy = fDimZN[1] / fDivZN[1] / 4.;
534 gMC->Gspos("ZNG1", 1, "ZNST", 0.-dx, 0.+dy, 0., 0, "ONLY");
535 gMC->Gspos("ZNG2", 1, "ZNST", 0.+dx, 0.+dy, 0., 0, "ONLY");
536 gMC->Gspos("ZNG3", 1, "ZNST", 0.-dx, 0.-dy, 0., 0, "ONLY");
537 gMC->Gspos("ZNG4", 1, "ZNST", 0.+dx, 0.-dy, 0., 0, "ONLY");
539 // --- Position the fibers in the grooves
540 gMC->Gspos("ZNF1", 1, "ZNG1", 0., 0., 0., 0, "ONLY");
541 gMC->Gspos("ZNF2", 1, "ZNG2", 0., 0., 0., 0, "ONLY");
542 gMC->Gspos("ZNF3", 1, "ZNG3", 0., 0., 0., 0, "ONLY");
543 gMC->Gspos("ZNF4", 1, "ZNG4", 0., 0., 0., 0, "ONLY");
545 // --- Position the neutron calorimeter in ZDC
546 gMC->Gspos("ZNEU", 1, "ZDC ", fPosZN[0], fPosZN[1], fPosZN[2] + fDimZN[2], 0, "ONLY");
548 //--> Proton calorimeter
550 gMC->Gsvolu("ZPRO", "BOX ", idtmed[2], fDimZP, 3); // Passive material
551 gMC->Gsvolu("ZPF1", "TUBE", idtmed[3], fFibZP, 3); // Active material
552 gMC->Gsvolu("ZPF2", "TUBE", idtmed[4], fFibZP, 3);
553 gMC->Gsvolu("ZPF3", "TUBE", idtmed[4], fFibZP, 3);
554 gMC->Gsvolu("ZPF4", "TUBE", idtmed[3], fFibZP, 3);
555 gMC->Gsvolu("ZPG1", "BOX ", idtmed[12], fGrvZP, 3); // Empty grooves
556 gMC->Gsvolu("ZPG2", "BOX ", idtmed[12], fGrvZP, 3);
557 gMC->Gsvolu("ZPG3", "BOX ", idtmed[12], fGrvZP, 3);
558 gMC->Gsvolu("ZPG4", "BOX ", idtmed[12], fGrvZP, 3);
560 //-- Divide ZPRO in towers(for hits purposes)
562 gMC->Gsdvn("ZPTX", "ZPRO", fTowZP[0], 1); // x-tower
563 gMC->Gsdvn("ZP1 ", "ZPTX", fTowZP[1], 2); // y-tower
566 //-- Divide ZP1 in minitowers
567 // fDivZP[0]= NUMBER OF FIBERS ALONG X-AXIS PER MINITOWER,
568 // fDivZP[1]= NUMBER OF FIBERS ALONG Y-AXIS PER MINITOWER
569 // (4 fiber per minitower)
571 gMC->Gsdvn("ZPSL", "ZP1 ", fDivZP[1], 2); // Slices
572 gMC->Gsdvn("ZPST", "ZPSL", fDivZP[0], 1); // Sticks
574 // --- Position the empty grooves in the sticks (4 grooves per stick)
575 dx = fDimZP[0] / fTowZP[0] / fDivZP[0] / 2.;
576 dy = fDimZP[1] / fTowZP[1] / fDivZP[1] / 2.;
578 gMC->Gspos("ZPG1", 1, "ZPST", 0.-dx, 0.+dy, 0., 0, "ONLY");
579 gMC->Gspos("ZPG2", 1, "ZPST", 0.+dx, 0.+dy, 0., 0, "ONLY");
580 gMC->Gspos("ZPG3", 1, "ZPST", 0.-dx, 0.-dy, 0., 0, "ONLY");
581 gMC->Gspos("ZPG4", 1, "ZPST", 0.+dx, 0.-dy, 0., 0, "ONLY");
583 // --- Position the fibers in the grooves
584 gMC->Gspos("ZPF1", 1, "ZPG1", 0., 0., 0., 0, "ONLY");
585 gMC->Gspos("ZPF2", 1, "ZPG2", 0., 0., 0., 0, "ONLY");
586 gMC->Gspos("ZPF3", 1, "ZPG3", 0., 0., 0., 0, "ONLY");
587 gMC->Gspos("ZPF4", 1, "ZPG4", 0., 0., 0., 0, "ONLY");
590 // --- Position the proton calorimeter in ZDC
591 gMC->Gspos("ZPRO", 1, "ZDC ", fPosZP[0], fPosZP[1], fPosZP[2] + fDimZP[2], 0, "ONLY");
595 //_____________________________________________________________________________
596 void AliZDCv1::DrawModule()
599 // Draw a shaded view of the Zero Degree Calorimeter version 1
602 // Set everything unseen
603 gMC->Gsatt("*", "seen", -1);
605 // Set ALIC mother transparent
606 gMC->Gsatt("ALIC","SEEN",0);
608 // Set the volumes visible
609 gMC->Gsatt("ZDC ","SEEN",0);
610 gMC->Gsatt("P001","SEEN",1);
611 gMC->Gsatt("E001","SEEN",1);
612 gMC->Gsatt("E002","SEEN",1);
613 gMC->Gsatt("E003","SEEN",1);
614 gMC->Gsatt("E004","SEEN",1);
615 gMC->Gsatt("C001","SEEN",1);
616 gMC->Gsatt("P002","SEEN",1);
617 gMC->Gsatt("P003","SEEN",1);
618 gMC->Gsatt("P004","SEEN",1);
619 gMC->Gsatt("P005","SEEN",1);
620 gMC->Gsatt("P006","SEEN",1);
621 gMC->Gsatt("P007","SEEN",1);
622 gMC->Gsatt("P008","SEEN",1);
623 gMC->Gsatt("P009","SEEN",1);
624 gMC->Gsatt("P010","SEEN",1);
625 gMC->Gsatt("P011","SEEN",1);
626 gMC->Gsatt("P012","SEEN",1);
627 gMC->Gsatt("P013","SEEN",1);
628 gMC->Gsatt("P014","SEEN",1);
629 gMC->Gsatt("P015","SEEN",1);
630 gMC->Gsatt("P016","SEEN",1);
631 gMC->Gsatt("P017","SEEN",1);
632 gMC->Gsatt("Q017","SEEN",1);
633 gMC->Gsatt("R017","SEEN",1);
634 gMC->Gsatt("P018","SEEN",1);
635 gMC->Gsatt("P019","SEEN",1);
636 gMC->Gsatt("MBXW","SEEN",1);
637 gMC->Gsatt("YMBX","SEEN",1);
638 gMC->Gsatt("MCBW","SEEN",1);
639 gMC->Gsatt("YMCB","SEEN",1);
640 gMC->Gsatt("MQXL","SEEN",1);
641 gMC->Gsatt("YMQL","SEEN",1);
642 gMC->Gsatt("MQX ","SEEN",1);
643 gMC->Gsatt("YMQ ","SEEN",1);
644 gMC->Gsatt("D1 ","SEEN",1);
645 gMC->Gsatt("YD1 ","SEEN",1);
646 gMC->Gsatt("D2 ","SEEN",1);
647 gMC->Gsatt("YD2 ","SEEN",1);
648 gMC->Gsatt("ZNEU","SEEN",0);
649 gMC->Gsatt("ZNF1","SEEN",0);
650 gMC->Gsatt("ZNF2","SEEN",0);
651 gMC->Gsatt("ZNF3","SEEN",0);
652 gMC->Gsatt("ZNF4","SEEN",0);
653 gMC->Gsatt("ZNG1","SEEN",0);
654 gMC->Gsatt("ZNG2","SEEN",0);
655 gMC->Gsatt("ZNG3","SEEN",0);
656 gMC->Gsatt("ZNG4","SEEN",0);
657 gMC->Gsatt("ZNTX","SEEN",0);
658 gMC->Gsatt("ZN1 ","COLO",2);
659 gMC->Gsatt("ZN1 ","SEEN",1);
660 gMC->Gsatt("ZNSL","SEEN",0);
661 gMC->Gsatt("ZNST","SEEN",0);
662 gMC->Gsatt("ZPRO","SEEN",0);
663 gMC->Gsatt("ZPF1","SEEN",0);
664 gMC->Gsatt("ZPF2","SEEN",0);
665 gMC->Gsatt("ZPF3","SEEN",0);
666 gMC->Gsatt("ZPF4","SEEN",0);
667 gMC->Gsatt("ZPG1","SEEN",0);
668 gMC->Gsatt("ZPG2","SEEN",0);
669 gMC->Gsatt("ZPG3","SEEN",0);
670 gMC->Gsatt("ZPG4","SEEN",0);
671 gMC->Gsatt("ZPTX","SEEN",0);
672 gMC->Gsatt("ZP1 ","COLO",2);
673 gMC->Gsatt("ZP1 ","SEEN",1);
674 gMC->Gsatt("ZPSL","SEEN",0);
675 gMC->Gsatt("ZPST","SEEN",0);
678 gMC->Gdopt("hide", "on");
679 gMC->Gdopt("shad", "on");
680 gMC->Gsatt("*", "fill", 7);
681 gMC->SetClipBox(".");
682 gMC->SetClipBox("*", 0, 100, -100, 100, 12000, 16000);
684 gMC->Gdraw("alic", 40, 30, 0, 488, 220, .07, .07);
685 gMC->Gdhead(1111, "Zero Degree Calorimeter Version 1");
686 gMC->Gdman(18, 4, "MAN");
689 //_____________________________________________________________________________
690 void AliZDCv1::CreateMaterials()
693 // Create Materials for the Zero Degree Calorimeter
695 // Origin : E. Scomparin
697 Int_t *idtmed = fIdtmed->GetArray();
699 Float_t dens, ubuf[1], wmat[2];
703 Float_t z[2], epsil=0.001, stmin=0.01;
705 Float_t fieldm = gAlice->Field()->Max();
708 Float_t tmaxfd=gAlice->Field()->Max();
709 Int_t isxfld = gAlice->Field()->Integ();
712 // --- Store in UBUF r0 for nuclear radius calculation R=r0*A**1/3
714 // --- Tantalum -> ZN passive material
716 AliMaterial(1, "TANT", 180.95, 73., 16.65, .4, 11.9, ubuf, 1);
720 // AliMaterial(1, "TUNG", 183.85, 74., 19.3, .35, 10.3, ubuf, 1);
722 // --- Brass (CuZn) -> ZP passive material
730 AliMixture(2, "BRASS ", a, z, dens, 2, wmat);
740 AliMixture(3, "SIO2 ", a, z, dens, -2, wmat);
744 // AliMaterial(7, "COPP", 63.54, 29., 8.96, 1.4, 0., ubuf, 1);
749 // AliMaterial(6, "LEAD", 207.19, 82., 11.35, .56, 18.5, ubuf, 1);
753 AliMaterial(5, "IRON", 55.85, 26., 7.87, 1.76, 0., ubuf, 1);
755 // --- Vacuum (no magnetic field)
756 AliMaterial(10, "VOID", 1e-16, 1e-16, 1e-16, 1e16, 1e16, ubuf,0);
758 // --- Vacuum (with magnetic field)
759 AliMaterial(11, "VOIM", 1e-16, 1e-16, 1e-16, 1e16, 1e16, ubuf,0);
761 // --- Air (no magnetic field)
762 AliMaterial(12, "Air $", 14.61, 7.3, .001205, 30420., 67500., ubuf, 0);
764 // --- Definition of tracking media:
766 // --- Tantalum = 1 ;
768 // --- Fibers (SiO2) = 3 ;
769 // --- Fibers (SiO2) = 4 ;
772 // --- Vacuum (no field) = 10
773 // --- Vacuum (with field) = 11
774 // --- Air (no field) = 12
777 // --- Tracking media parameters
785 AliMedium(1, "ZTANT", 1, isvolActive, inofld, fieldm, tmaxfd, stemax, deemax, epsil, stmin);
786 // AliMedium(1, "ZW", 1, isvolActive, inofld, fieldm, tmaxfd, stemax, deemax, epsil, stmin);
787 AliMedium(2, "ZBRASS", 2, isvolActive, inofld, fieldm, tmaxfd, stemax, deemax, epsil, stmin);
788 AliMedium(3, "ZSIO2", 3, isvolActive, inofld, fieldm, tmaxfd, stemax, deemax, epsil, stmin);
789 AliMedium(4, "ZQUAR", 3, isvolActive, inofld, fieldm, tmaxfd, stemax, deemax, epsil, stmin);
790 // AliMedium(7, "ZCOPP", 7, isvolActive, inofld, fieldm, tmaxfd, stemax, deemax, epsil, stmin);
791 // AliMedium(6, "ZLEAD", 6, isvolActive, inofld, fieldm, tmaxfd, stemax, deemax, epsil, stmin);
792 AliMedium(5, "ZIRON", 5, isvol, inofld, fieldm, tmaxfd, stemax, deemax, epsil, stmin);
793 AliMedium(10, "ZVOID", 10, isvol, inofld, fieldm, tmaxfd, stemax, deemax, epsil, stmin);
794 AliMedium(12, "ZAIR", 12, 0, inofld, fieldm, tmaxfd, stemax,deemax, epsil, stmin);
797 AliMedium(11, "ZVOIM", 11, isvol, isxfld, fieldm, tmaxfd, stemax, deemax, epsil, stmin);
799 // Thresholds for showering in the ZDCs
802 gMC->Gstpar(idtmed[i], "CUTGAM", .001);
803 gMC->Gstpar(idtmed[i], "CUTELE", .001);
804 gMC->Gstpar(idtmed[i], "CUTNEU", .01);
805 gMC->Gstpar(idtmed[i], "CUTHAD", .01);
807 gMC->Gstpar(idtmed[i], "CUTGAM", .001);
808 gMC->Gstpar(idtmed[i], "CUTELE", .001);
809 gMC->Gstpar(idtmed[i], "CUTNEU", .01);
810 gMC->Gstpar(idtmed[i], "CUTHAD", .01);
812 // Avoid too detailed showering along the beam line
815 gMC->Gstpar(idtmed[i], "CUTGAM", .1);
816 gMC->Gstpar(idtmed[i], "CUTELE", .1);
817 gMC->Gstpar(idtmed[i], "CUTNEU", 1.);
818 gMC->Gstpar(idtmed[i], "CUTHAD", 1.);
820 // Avoid interaction in fibers (only energy loss allowed)
822 gMC->Gstpar(idtmed[i], "DCAY", 0.);
823 gMC->Gstpar(idtmed[i], "MULS", 0.);
824 gMC->Gstpar(idtmed[i], "PFIS", 0.);
825 gMC->Gstpar(idtmed[i], "MUNU", 0.);
826 gMC->Gstpar(idtmed[i], "LOSS", 1.);
827 gMC->Gstpar(idtmed[i], "PHOT", 0.);
828 gMC->Gstpar(idtmed[i], "COMP", 0.);
829 gMC->Gstpar(idtmed[i], "PAIR", 0.);
830 gMC->Gstpar(idtmed[i], "BREM", 0.);
831 gMC->Gstpar(idtmed[i], "DRAY", 0.);
832 gMC->Gstpar(idtmed[i], "ANNI", 0.);
833 gMC->Gstpar(idtmed[i], "HADR", 0.);
835 gMC->Gstpar(idtmed[i], "DCAY", 0.);
836 gMC->Gstpar(idtmed[i], "MULS", 0.);
837 gMC->Gstpar(idtmed[i], "PFIS", 0.);
838 gMC->Gstpar(idtmed[i], "MUNU", 0.);
839 gMC->Gstpar(idtmed[i], "LOSS", 1.);
840 gMC->Gstpar(idtmed[i], "PHOT", 0.);
841 gMC->Gstpar(idtmed[i], "COMP", 0.);
842 gMC->Gstpar(idtmed[i], "PAIR", 0.);
843 gMC->Gstpar(idtmed[i], "BREM", 0.);
844 gMC->Gstpar(idtmed[i], "DRAY", 0.);
845 gMC->Gstpar(idtmed[i], "ANNI", 0.);
846 gMC->Gstpar(idtmed[i], "HADR", 0.);
848 fMedSensF1 = idtmed[3]; // Sensitive volume: fibres type 1
849 fMedSensF2 = idtmed[4]; // Sensitive volume: fibres type 2
850 fMedSensZN = idtmed[1]; // Sensitive volume: ZN passive material
851 fMedSensZP = idtmed[2]; // Sensitive volume: ZP passive material
852 fMedSensGR = idtmed[12]; // Sensitive volume: air into the grooves
855 //_____________________________________________________________________________
856 void AliZDCv1::Init()
862 //_____________________________________________________________________________
863 void AliZDCv1::InitTables()
866 //Initialize parameters for light tables and read them
872 FILE *fp1, *fp2, *fp3, *fp4, *fp5, *fp6, *fp7, *fp8;
874 if((fp1 = fopen("light22620362207s","r")) == NULL){
875 printf("Cannot open file fp1 \n");
878 if((fp2 = fopen("light22620362208s","r")) == NULL){
879 printf("Cannot open file fp2 \n");
882 if((fp3 = fopen("light22620362209s","r")) == NULL){
883 printf("Cannot open file fp3 \n");
886 if((fp4 = fopen("light22620362210s","r")) == NULL){
887 printf("Cannot open file fp4 \n");
890 // printf(" --- Reading light tables for ZN \n");
891 for(k=0; k<fNalfan; k++){
892 for(j=0; j<fNben; j++){
893 fscanf(fp1,"%f",&fTablen[0][k][j]);
894 fscanf(fp2,"%f",&fTablen[1][k][j]);
895 fscanf(fp3,"%f",&fTablen[2][k][j]);
896 fscanf(fp4,"%f",&fTablen[3][k][j]);
904 if((fp5 = fopen("light22620552207s","r")) == NULL){
905 printf("Cannot open file fp5 \n");
908 if((fp6 = fopen("light22620552208s","r")) == NULL){
909 printf("Cannot open file fp6 \n");
912 if((fp7 = fopen("light22620552209s","r")) == NULL){
913 printf("Cannot open file fp7 \n");
916 if((fp8 = fopen("light22620552210s","r")) == NULL){
917 printf("Cannot open file fp8 \n");
920 // printf(" --- Reading light tables for ZP \n");
921 for(k=0; k<fNalfap; k++){
922 for(j=0; j<fNbep; j++){
923 fscanf(fp5,"%f",&fTablep[0][k][j]);
924 fscanf(fp6,"%f",&fTablep[1][k][j]);
925 fscanf(fp7,"%f",&fTablep[2][k][j]);
926 fscanf(fp8,"%f",&fTablep[3][k][j]);
935 //_____________________________________________________________________________
936 void AliZDCv1::StepManager()
939 // Routine called at every step in the Zero Degree Calorimeters
944 Int_t vol[2], ibeta, ialfa, ibe;
945 Float_t x[3], xdet[3], destep, hits[10], m, ekin, um[3], ud[3], be, radius, out;
949 if((gMC->GetMedium() == fMedSensZN) || (gMC->GetMedium() == fMedSensZP) ||
950 (gMC->GetMedium() == fMedSensGR) || (gMC->GetMedium() == fMedSensF1) ||
951 (gMC->GetMedium() == fMedSensF2)){
953 //Particle coordinates
954 gMC->TrackPosition(s);
962 // Determine in which ZDC the particle is
963 knamed = gMC->CurrentVolName();
964 if(!strncmp(knamed,"ZN",2))vol[0]=1;
965 if(!strncmp(knamed,"ZP",2))vol[0]=2;
967 // Determine in which quadrant the particle is
970 gMC->Gmtod(x,xdet,1);
972 if((xdet[0]<0.) && (xdet[1]>0.)) vol[1]=1;
973 if((xdet[0]>0.) && (xdet[1]>0.)) vol[1]=2;
974 if((xdet[0]<0.) && (xdet[1]<0.)) vol[1]=3;
975 if((xdet[0]>0.) && (xdet[1]<0.)) vol[1]=4;
980 Float_t xqZP = xdet[0]/(fDimZP[0]/2);
981 for(int i=1; i<=4; i++){
982 if(xqZP>(i-3) && xqZP<(i-2)){
988 // printf(" -> Det. %d Quad. %d \n", vol[0], vol[1]);
990 // Store impact point and kinetic energy of the ENTERING particle
992 // Int_t Curtrack = gAlice->CurrentTrack();
993 // Int_t Prim = gAlice->GetPrimary(Curtrack);
994 // printf ("Primary: %d, Current Track: %d \n", Prim, Curtrack);
996 // if(Curtrack==Prim){
997 if(gMC->IsTrackEntering()){
999 gMC->TrackMomentum(p);
1000 // printf("p[0] = %f, p[1] = %f, p[2] = %f, p[3] = %f \n",
1001 // p[0], p[1], p[2], p[3]);
1004 // Impact point on ZN
1011 // printf(" hits[2] = %f \n",hits[2]);
1012 AddHit(gAlice->CurrentTrack(), vol, hits);
1016 // Charged particles -> Energy loss
1017 if((destep=gMC->Edep())){
1018 if(gMC->IsTrackStop()){
1019 gMC->TrackMomentum(p);
1020 m = gMC->TrackMass();
1022 if(ekin<0.) printf("ATTENTION!!!!!!!!!!!!!!! -> ekin = %f <0 (?)",ekin);
1026 AddHit(gAlice->CurrentTrack(), vol, hits);
1032 AddHit(gAlice->CurrentTrack(), vol, hits);
1034 // printf(" -> Charged particle -> Dep. E = %f eV \n",hits[8]);
1040 // *** Light production in fibres
1041 if((gMC->GetMedium() == fMedSensF1) || (gMC->GetMedium() == fMedSensF2)){
1042 // printf("%%%%%%%%%%%%%%%% Particle in fibre %%%%%%%%%%%%%%%%\n");
1044 //Select charged particles
1045 if((destep=gMC->Edep())){
1046 // printf(" -> CHARGED particle!!! \n");
1048 // Particle velocity
1049 gMC->TrackMomentum(p);
1050 Float_t ptot=TMath::Sqrt(p[0]*p[0]+p[1]*p[1]+p[2]*p[2]);
1051 Float_t beta = ptot/p[3];
1052 // printf("p[0] = %f, p[1] = %f, p[2] = %f, p[3] = %f, ptot = %f \n",
1053 // p[0], p[1], p[2], p[3], ptot);
1054 // Int_t pcID = gMC->TrackPid();
1055 // printf(" Pc %d in quadrant %d -> beta = %f \n", pcID, vol[1], beta);
1056 if(beta<0.67) return;
1057 else if((beta>=0.67) && (beta<=0.75)) ibeta = 0;
1058 else if((beta>0.75) && (beta<=0.85)) ibeta = 1;
1059 else if((beta>0.85) && (beta<=0.95)) ibeta = 2;
1062 // Angle between particle trajectory and fibre axis
1063 // 1 -> Momentum directions
1067 gMC->Gmtod(um,ud,2);
1068 // 2 -> Angle < limit angle
1069 Double_t alfar = TMath::ACos(ud[2]);
1070 Double_t alfa = alfar*kRaddeg;
1071 if(alfa>110.) return;
1072 ialfa = Int_t(1.+alfa/2.);
1074 // Distance between particle trajectory and fibre axis
1075 gMC->TrackPosition(s);
1076 for(j=0; j<=2; j++){
1079 gMC->Gmtod(x,xdet,1);
1080 if(TMath::Abs(ud[0])>0.00001){
1081 Float_t dcoeff = ud[1]/ud[0];
1082 be = TMath::Abs((xdet[1]-dcoeff*xdet[0])/TMath::Sqrt(dcoeff*dcoeff+1.));
1085 be = TMath::Abs(ud[0]);
1088 if((vol[0]==1)) radius = fFibZN[1];
1089 if((vol[0]==2)) radius = fFibZP[1];
1090 ibe = Int_t(be*1000.+1);
1092 //Looking into the light tables
1093 Float_t charge = gMC->TrackCharge();
1097 if(ibe>fNben) ibe=fNben;
1098 out = charge*charge*fTablen[ibeta][ialfa][ibe];
1099 // printf(" -> fTablen [%d][%d][%d] = %f \n",
1100 // ibeta, ialfa, ibe, fTablen[ibeta][ialfa][ibe]);
1101 if(gMC->GetMedium() == fMedSensF1){
1102 hits[7] = out; //fLightPMQ
1105 AddHit(gAlice->CurrentTrack(), vol, hits);
1109 hits[8] = out; //fLightPMC
1111 AddHit(gAlice->CurrentTrack(), vol, hits);
1117 if(ibe>fNbep) ibe=fNbep;
1118 out = charge*charge*fTablep[ibeta][ialfa][ibe];
1119 // printf(" -> fTablep [%d][%d][%d] = %f\n",
1120 // ibeta, ialfa, ibe, fTablen[ibeta][ialfa][ibe]);
1121 if(gMC->GetMedium() == fMedSensF1){
1122 hits[7] = out; //fLightPMQ
1125 AddHit(gAlice->CurrentTrack(), vol, hits);
1129 hits[8] = out; //fLightPMC
1131 AddHit(gAlice->CurrentTrack(), vol, hits);