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 1.7 2000/01/19 17:17:40 fca
20 Revision 1.6 1999/09/29 09:24:35 fca
21 Introduction of the Copyright and cvs Log
25 ///////////////////////////////////////////////////////////////////////////////
27 // Zero Degree Calorimeter //
28 // This class contains the basic functions for the Time Of Flight //
29 // detector. Functions specific to one particular geometry are //
30 // contained in the derived classes //
32 ///////////////////////////////////////////////////////////////////////////////
42 #include "AliCallf77.h"
50 ///////////////////////////////////////////////////////////////////////////////
52 // Zero Degree Calorimeter version 1 //
54 ///////////////////////////////////////////////////////////////////////////////
56 //_____________________________________________________________________________
57 AliZDCv1::AliZDCv1() : AliZDC()
60 // Default constructor for Zero Degree Calorimeter
69 //_____________________________________________________________________________
70 AliZDCv1::AliZDCv1(const char *name, const char *title)
74 // Standard constructor for Zero Degree Calorimeter
83 //_____________________________________________________________________________
84 void AliZDCv1::CreateGeometry()
87 // Create the geometry for the Zero Degree Calorimeter version 1
88 //* Initialize COMMON block ZDC_CGEOM
95 //_____________________________________________________________________________
96 void AliZDCv1::CreateBeamLine()
100 Float_t zq, conpar[9], elpar[3], tubpar[3];
105 Int_t *idtmed = fIdtmed->GetArray();
107 // -- Mother of the ZDC
118 gMC->Gsvolu("ZDC ", "PCON", idtmed[10], conpar, 9);
119 gMC->Gspos("ZDC ", 1, "ALIC", 0., 0., 0., 0, "ONLY");
121 // -- FIRST SECTION OF THE BEAM PIPE (from compensator dipole to
128 tubpar[2] = 3916.7/2.;
129 gMC->Gsvolu("P001", "TUBE", idtmed[5], tubpar, 3);
130 gMC->Gspos("P001", 1, "ZDC ", 0., 0., tubpar[2] + zd1, 0, "ONLY");
132 //-- SECOND SECTION OF THE BEAM PIPE (FROM THE END OF D1 TO THE BEGINNING OF
135 //-- FROM MAGNETIC BEGINNING OG D1 TO MAGNETIC END OF D1 + 23.5 cm
143 gMC->Gsvolu("E001", "ELTU", idtmed[5], elpar, 3);
144 gMC->Gspos("E001", 1, "ZDC ", 0., 0., elpar[2] + zd1, 0, "ONLY");
149 gMC->Gsvolu("E002", "ELTU", idtmed[10], elpar, 3);
150 gMC->Gspos("E002", 1, "E001", 0., 0., 0., 0, "ONLY");
157 gMC->Gsvolu("E003", "ELTU", idtmed[5], elpar, 3);
158 gMC->Gspos("E002", 1, "ZDC ", 0., 0., elpar[2] + zd1, 0, "ONLY");
163 gMC->Gsvolu("E004", "ELTU", idtmed[10], elpar, 3);
164 gMC->Gspos("E004", 1, "E003", 0., 0., 0., 0, "ONLY");
173 gMC->Gsvolu("C001", "CONE", idtmed[5], conpar, 5);
174 gMC->Gspos("C001", 1, "ZDC ", 0., 0., conpar[0] + zd1, 0, "ONLY");
181 gMC->Gsvolu("P002", "TUBE", idtmed[5], tubpar, 3);
182 gMC->Gspos("P002", 1, "ZDC ", 0., 0., tubpar[2] + zd1, 0, "ONLY");
184 zd1 += tubpar[2] * 2.;
189 gMC->Gsvolu("P003", "TUBE", idtmed[5], tubpar, 3);
190 gMC->Gspos("P003", 1, "ZDC ", 0., 0., tubpar[2] + zd1, 0, "ONLY");
192 zd1 += tubpar[2] * 2.;
197 gMC->Gsvolu("P004", "TUBE", idtmed[5], tubpar, 3);
198 gMC->Gspos("P004", 1, "ZDC ", 0., 0., tubpar[0] + zd1, 0, "ONLY");
200 zd1 += tubpar[2] * 2.;
205 gMC->Gsvolu("P005", "TUBE", idtmed[5], tubpar, 3);
206 gMC->Gspos("P005", 1, "ZDC ", 0., 0., tubpar[2] + zd1, 0, "ONLY");
208 zd1 += tubpar[2] * 2.;
215 gMC->Gsvolu("P006", "CONE", idtmed[5], conpar, 5);
216 gMC->Gspos("P006", 1, "ZDC ", 0., 0., conpar[0] + zd1, 0, "ONLY");
218 zd1 += conpar[0] * 2.;
223 gMC->Gsvolu("P007", "TUBE", idtmed[5], tubpar, 3);
224 gMC->Gspos("P007", 1, "ZDC ", 0., 0., tubpar[2] + zd1, 0, "ONLY");
226 zd1 += tubpar[2] * 2.;
233 gMC->Gsvolu("P008", "CONE", idtmed[5], conpar, 5);
234 gMC->Gspos("P008", 1, "ZDC ", 0., 0., conpar[0] + zd1, 0, "ONLY");
236 zd1 += conpar[0] * 2.;
240 tubpar[2] = 205.8/2.;
241 gMC->Gsvolu("P009", "TUBE", idtmed[5], tubpar, 3);
242 gMC->Gspos("P009", 1, "ZDC ", 0., 0., tubpar[2] + zd1, 0, "ONLY");
244 zd1 += tubpar[2] * 2.;
248 tubpar[2] = 505.4/2.;
249 gMC->Gsvolu("P010", "TUBE", idtmed[5], tubpar, 3);
250 gMC->Gspos("P010", 1, "ZDC ", 0., 0., tubpar[2] + zd1, 0, "ONLY");
252 zd1 += tubpar[2] * 2.;
257 gMC->Gsvolu("P011", "TUBE", idtmed[5], tubpar, 3);
258 gMC->Gspos("P011", 1, "ZDC ", 0., 0., tubpar[2] + zd1, 0, "ONLY");
260 zd1 += tubpar[2] * 2.;
264 tubpar[2] = 778.5/2.;
265 gMC->Gsvolu("P012", "TUBE", idtmed[5], tubpar, 3);
266 gMC->Gspos("P012", 1, "ZDC ", 0., 0., tubpar[2] + zd1, 0, "ONLY");
268 zd1 += tubpar[2] * 2.;
270 conpar[0] = 14.18/2.;
275 gMC->Gsvolu("P013", "CONE", idtmed[5], conpar, 5);
276 gMC->Gspos("P013", 1, "ZDC ", 0., 0., conpar[0] + zd1, 0, "ONLY");
278 zd1 += conpar[0] * 2.;
283 gMC->Gsvolu("P014", "TUBE", idtmed[5], tubpar, 3);
284 gMC->Gspos("P014", 1, "ZDC ", 0., 0., tubpar[2] + zd1, 0, "ONLY");
286 zd1 += tubpar[2] * 2.;
288 conpar[0] = 36.86/2.;
293 gMC->Gsvolu("P015", "CONE", idtmed[5], conpar, 5);
294 gMC->Gspos("P015", 1, "ZDC ", 0., 0., conpar[0] + zd1, 0, "ONLY");
296 zd1 += conpar[0] * 2.;
300 tubpar[2] = 927.3/2.;
301 gMC->Gsvolu("P016", "TUBE", idtmed[5], tubpar, 3);
302 gMC->Gspos("P016", 1, "ZDC ", 0., 0., tubpar[2] + zd1, 0, "ONLY");
304 zd1 += tubpar[2] * 2.;
309 gMC->Gsvolu("P017", "TUBE", idtmed[5], tubpar, 3);
310 gMC->Gspos("P017", 1, "ZDC ", 0., 0., tubpar[2] + zd1, 0, "ONLY");
312 zd1 += tubpar[2] * 2.;
317 gMC->Gsvolu("Q017", "TUBE", idtmed[10], tubpar, 3);
319 //-- Position Q017 inside P017
320 gMC->Gspos("Q017", 1, "P017", -7.7, 0., 0., 0, "ONLY");
325 gMC->Gsvolu("R017", "TUBE", idtmed[10], tubpar, 3);
327 //-- Position R017 inside P017
328 gMC->Gspos("R017", 1, "P017", 7.7, 0., 0., 0, "ONLY");
330 //-- BEAM PIPE BETWEEN END OF CONICAL PIPE AND BEGINNING OF D2
335 gMC->Gsvolu("P018", "TUBE", idtmed[5], tubpar, 3);
340 gMC->Gsvolu("P019", "TUBE", idtmed[5], tubpar, 3);
344 AliMatrix(im1, 90.-0.071, 0., 90., 90., .071, 180.);
345 angle = .071*kDegrad;
346 gMC->Gspos("P018", 1, "ZDC ", TMath::Sin(angle) * 645. / 2. - 9.7 +
347 TMath::Sin(angle) * 945. / 2., 0., tubpar[2] + zd1, im1, "ONLY");
348 AliMatrix(im2, 90.+0.071, 0., 90., 90., .071, 0.);
349 gMC->Gspos("P019", 1, "ZDC ", 9.7 - TMath::Sin(angle) * 645. / 2., 0.,
350 tubpar[2] + zd1, im2, "ONLY");
352 // -- END OF BEAM PIPE VOLUME DEFINITION. MAGNET DEFINITION FOLLOWS
355 // -- COMPENSATOR DIPOLE (MBXW)
356 // GAP (VACUUM WITH MAGNETIC FIELD)
361 gMC->Gsvolu("MBXW", "TUBE", idtmed[11], tubpar, 3);
362 gMC->Gspos("MBXW", 1, "ZDC ", 0., 0., tubpar[2] + 805., 0, "ONLY");
364 // -- YOKE (IRON WITHOUT MAGNETIC FIELD)
369 gMC->Gsvolu("YMBX", "TUBE", idtmed[5], tubpar, 3);
370 gMC->Gspos("YMBX", 1, "ZDC ", 0., 0., tubpar[2] + 805., 0, "ONLY");
372 // -- COMPENSATOR DIPOLE (MCBWA)
373 // GAP (VACUUM WITH MAGNETIC FIELD)
378 gMC->Gsvolu("MCBW", "TUBE", idtmed[11], tubpar, 3);
379 gMC->Gspos("MCBW", 1, "ZDC ", 0., 0., tubpar[2] + 1921.6, 0, "ONLY");
381 // -- YOKE (IRON WITHOUT MAGNETIC FIELD)
386 gMC->Gsvolu("YMCB", "TUBE", idtmed[5], tubpar, 3);
387 gMC->Gspos("YMCB", 1, "ZDC ", 0., 0., tubpar[2] + 1921.6, 0, "ONLY");
393 // -- DEFINE MQXL AND MQX QUADRUPOLE ELEMENT
396 // -- GAP (VACUUM WITH MAGNETIC FIELD)
401 gMC->Gsvolu("MQXL", "TUBE", idtmed[11], tubpar, 3);
408 gMC->Gsvolu("YMQL", "TUBE", idtmed[5], tubpar, 3);
410 gMC->Gspos("MQXL", 1, "ZDC ", 0., 0., tubpar[2] + zq, 0, "ONLY");
411 gMC->Gspos("YMQL", 1, "ZDC ", 0., 0., tubpar[2] + zq, 0, "ONLY");
413 gMC->Gspos("MQXL", 2, "ZDC ", 0., 0., tubpar[2] + zq + 2430., 0, "ONLY");
414 gMC->Gspos("YMQL", 2, "ZDC ", 0., 0., tubpar[2] + zq + 2430., 0, "ONLY");
417 // -- GAP (VACUUM WITH MAGNETIC FIELD)
422 gMC->Gsvolu("MQX ", "TUBE", idtmed[11], tubpar, 3);
429 gMC->Gsvolu("YMQ ", "TUBE", idtmed[5], tubpar, 3);
431 gMC->Gspos("MQX ", 1, "ZDC ", 0., 0., tubpar[2] + zq + 880., 0, "ONLY");
432 gMC->Gspos("YMQ ", 1, "ZDC ", 0., 0., tubpar[2] + zq + 880., 0, "ONLY");
434 gMC->Gspos("MQX ", 2, "ZDC ", 0., 0., tubpar[2] + zq + 1530., 0, "ONLY");
435 gMC->Gspos("YMQ ", 2, "ZDC ", 0., 0., tubpar[2] + zq + 1530., 0, "ONLY");
437 // -- SEPARATOR DIPOLE D1
441 // -- GAP (VACUUM WITH MAGNETIC FIELD)
446 gMC->Gsvolu("D1 ", "TUBE", idtmed[11], tubpar, 3);
453 gMC->Gsvolu("YD1 ", "TUBE", idtmed[5], tubpar, 3);
455 gMC->Gspos("YD1 ", 1, "ZDC ", 0., 0., tubpar[2] + zd1, 0, "ONLY");
456 gMC->Gspos("D1 ", 1, "YD1 ", 0., 0., 0., 0, "ONLY");
462 // -- GAP (VACUUM WITH MAGNETIC FIELD)
467 gMC->Gsvolu("D2 ", "TUBE", idtmed[11], tubpar, 3);
474 gMC->Gsvolu("YD2 ", "TUBE", idtmed[5], tubpar, 3);
476 gMC->Gspos("YD2 ", 1, "ZDC ", 0., 0., tubpar[2] + zd2, 0, "ONLY");
478 gMC->Gspos("D2 ", 1, "YD2 ", -9.7, 0., 0., 0, "ONLY");
479 gMC->Gspos("D2 ", 2, "YD2 ", 9.7, 0., 0., 0, "ONLY");
481 // -- END OF MAGNET DEFINITION
484 //_____________________________________________________________________________
485 void AliZDCv1::CreateZDC()
488 Int_t *idtmed = fIdtmed->GetArray();
490 //-- Create calorimeters geometry
492 //--> Neutron calorimeter (ZN)
494 gMC->Gsvolu("ZNEU", "BOX ", idtmed[1], fDimZN, 3); // Passive material
495 gMC->Gsvolu("ZNF1", "TUBE", idtmed[3], fFibZN, 3); // Active material
496 gMC->Gsvolu("ZNF2", "TUBE", idtmed[4], fFibZN, 3);
497 gMC->Gsvolu("ZNF3", "TUBE", idtmed[4], fFibZN, 3);
498 gMC->Gsvolu("ZNF4", "TUBE", idtmed[3], fFibZN, 3);
499 gMC->Gsvolu("ZNG1", "BOX ", idtmed[12], fGrvZN, 3); // Empty grooves
500 gMC->Gsvolu("ZNG2", "BOX ", idtmed[12], fGrvZN, 3);
501 gMC->Gsvolu("ZNG3", "BOX ", idtmed[12], fGrvZN, 3);
502 gMC->Gsvolu("ZNG4", "BOX ", idtmed[12], fGrvZN, 3);
504 // Divide ZNEU in towers (for hits purposes)
506 gMC->Gsdvn("ZNTX", "ZNEU", fTowZN[0], 1); // x-tower
507 gMC->Gsdvn("ZN1 ", "ZNTX", fTowZN[1], 2); // y-tower
509 //-- Divide ZN1 in minitowers
510 // fDivZN[0]= NUMBER OF FIBERS PER TOWER ALONG X-AXIS,
511 // fDivZN[1]= NUMBER OF FIBERS PER TOWER ALONG Y-AXIS
512 // (4 fibres per minitower)
514 gMC->Gsdvn("ZNSL", "ZN1 ", fDivZN[1], 2); // Slices
515 gMC->Gsdvn("ZNST", "ZNSL", fDivZN[0], 1); // Sticks
517 // --- Position the empty grooves in the sticks (4 grooves per stick)
518 Float_t dx = fDimZN[0] / fDivZN[0] / 4.;
519 Float_t dy = fDimZN[1] / fDivZN[1] / 4.;
521 gMC->Gspos("ZNG1", 1, "ZNST", 0.-dx, 0.+dy, 0., 0, "ONLY");
522 gMC->Gspos("ZNG2", 1, "ZNST", 0.+dx, 0.+dy, 0., 0, "ONLY");
523 gMC->Gspos("ZNG3", 1, "ZNST", 0.-dx, 0.-dy, 0., 0, "ONLY");
524 gMC->Gspos("ZNG4", 1, "ZNST", 0.+dx, 0.-dy, 0., 0, "ONLY");
526 // --- Position the fibers in the grooves
527 gMC->Gspos("ZNF1", 1, "ZNG1", 0., 0., 0., 0, "ONLY");
528 gMC->Gspos("ZNF2", 1, "ZNG2", 0., 0., 0., 0, "ONLY");
529 gMC->Gspos("ZNF3", 1, "ZNG3", 0., 0., 0., 0, "ONLY");
530 gMC->Gspos("ZNF4", 1, "ZNG4", 0., 0., 0., 0, "ONLY");
532 // --- Position the neutron calorimeter in ZDC
533 gMC->Gspos("ZNEU", 1, "ZDC ", fPosZN[0], fPosZN[1], fPosZN[2] + fDimZN[2], 0, "ONLY");
535 //--> Proton calorimeter
537 gMC->Gsvolu("ZPRO", "BOX ", idtmed[2], fDimZP, 3); // Passive material
538 gMC->Gsvolu("ZPF1", "TUBE", idtmed[3], fFibZP, 3); // Active material
539 gMC->Gsvolu("ZPF2", "TUBE", idtmed[4], fFibZP, 3);
540 gMC->Gsvolu("ZPF3", "TUBE", idtmed[4], fFibZP, 3);
541 gMC->Gsvolu("ZPF4", "TUBE", idtmed[3], fFibZP, 3);
542 gMC->Gsvolu("ZPG1", "BOX ", idtmed[12], fGrvZP, 3); // Empty grooves
543 gMC->Gsvolu("ZPG2", "BOX ", idtmed[12], fGrvZP, 3);
544 gMC->Gsvolu("ZPG3", "BOX ", idtmed[12], fGrvZP, 3);
545 gMC->Gsvolu("ZPG4", "BOX ", idtmed[12], fGrvZP, 3);
547 //-- Divide ZPRO in towers(for hits purposes)
549 gMC->Gsdvn("ZPTX", "ZPRO", fTowZP[0], 1); // x-tower
550 gMC->Gsdvn("ZP1 ", "ZPTX", fTowZP[1], 2); // y-tower
553 //-- Divide ZP1 in minitowers
554 // fDivZP[0]= NUMBER OF FIBERS ALONG X-AXIS PER MINITOWER,
555 // fDivZP[1]= NUMBER OF FIBERS ALONG Y-AXIS PER MINITOWER
556 // (4 fiber per minitower)
558 gMC->Gsdvn("ZPSL", "ZP1 ", fDivZP[1], 2); // Slices
559 gMC->Gsdvn("ZPST", "ZPSL", fDivZP[0], 1); // Sticks
561 // --- Position the empty grooves in the sticks (4 grooves per stick)
562 dx = fDimZP[0] / fTowZP[0] / fDivZP[0] / 2.;
563 dy = fDimZP[1] / fTowZP[1] / fDivZP[1] / 2.;
565 gMC->Gspos("ZPG1", 1, "ZPST", 0.-dx, 0.+dy, 0., 0, "ONLY");
566 gMC->Gspos("ZPG2", 1, "ZPST", 0.+dx, 0.+dy, 0., 0, "ONLY");
567 gMC->Gspos("ZPG3", 1, "ZPST", 0.-dx, 0.-dy, 0., 0, "ONLY");
568 gMC->Gspos("ZPG4", 1, "ZPST", 0.+dx, 0.-dy, 0., 0, "ONLY");
570 // --- Position the fibers in the grooves
571 gMC->Gspos("ZPF1", 1, "ZPG1", 0., 0., 0., 0, "ONLY");
572 gMC->Gspos("ZPF2", 1, "ZPG2", 0., 0., 0., 0, "ONLY");
573 gMC->Gspos("ZPF3", 1, "ZPG3", 0., 0., 0., 0, "ONLY");
574 gMC->Gspos("ZPF4", 1, "ZPG4", 0., 0., 0., 0, "ONLY");
577 // --- Position the proton calorimeter in ZDC
578 gMC->Gspos("ZPRO", 1, "ZDC ", fPosZP[0], fPosZP[1], fPosZP[2] + fDimZP[2], 0, "ONLY");
582 //_____________________________________________________________________________
583 void AliZDCv1::DrawModule()
586 // Draw a shaded view of the Zero Degree Calorimeter version 1
589 // Set everything unseen
590 gMC->Gsatt("*", "seen", -1);
592 // Set ALIC mother transparent
593 gMC->Gsatt("ALIC","SEEN",0);
595 // Set the volumes visible
596 gMC->Gsatt("ZDC ","SEEN",0);
597 gMC->Gsatt("P001","SEEN",1);
598 gMC->Gsatt("E001","SEEN",1);
599 gMC->Gsatt("E002","SEEN",1);
600 gMC->Gsatt("E003","SEEN",1);
601 gMC->Gsatt("E004","SEEN",1);
602 gMC->Gsatt("C001","SEEN",1);
603 gMC->Gsatt("P002","SEEN",1);
604 gMC->Gsatt("P003","SEEN",1);
605 gMC->Gsatt("P004","SEEN",1);
606 gMC->Gsatt("P005","SEEN",1);
607 gMC->Gsatt("P006","SEEN",1);
608 gMC->Gsatt("P007","SEEN",1);
609 gMC->Gsatt("P008","SEEN",1);
610 gMC->Gsatt("P009","SEEN",1);
611 gMC->Gsatt("P010","SEEN",1);
612 gMC->Gsatt("P011","SEEN",1);
613 gMC->Gsatt("P012","SEEN",1);
614 gMC->Gsatt("P013","SEEN",1);
615 gMC->Gsatt("P014","SEEN",1);
616 gMC->Gsatt("P015","SEEN",1);
617 gMC->Gsatt("P016","SEEN",1);
618 gMC->Gsatt("P017","SEEN",1);
619 gMC->Gsatt("Q017","SEEN",1);
620 gMC->Gsatt("R017","SEEN",1);
621 gMC->Gsatt("P018","SEEN",1);
622 gMC->Gsatt("P019","SEEN",1);
623 gMC->Gsatt("MBXW","SEEN",1);
624 gMC->Gsatt("YMBX","SEEN",1);
625 gMC->Gsatt("MCBW","SEEN",1);
626 gMC->Gsatt("YMCB","SEEN",1);
627 gMC->Gsatt("MQXL","SEEN",1);
628 gMC->Gsatt("YMQL","SEEN",1);
629 gMC->Gsatt("MQX ","SEEN",1);
630 gMC->Gsatt("YMQ ","SEEN",1);
631 gMC->Gsatt("D1 ","SEEN",1);
632 gMC->Gsatt("YD1 ","SEEN",1);
633 gMC->Gsatt("D2 ","SEEN",1);
634 gMC->Gsatt("YD2 ","SEEN",1);
635 gMC->Gsatt("ZNEU","SEEN",0);
636 gMC->Gsatt("ZNF1","SEEN",0);
637 gMC->Gsatt("ZNF2","SEEN",0);
638 gMC->Gsatt("ZNF3","SEEN",0);
639 gMC->Gsatt("ZNF4","SEEN",0);
640 gMC->Gsatt("ZNG1","SEEN",0);
641 gMC->Gsatt("ZNG2","SEEN",0);
642 gMC->Gsatt("ZNG3","SEEN",0);
643 gMC->Gsatt("ZNG4","SEEN",0);
644 gMC->Gsatt("ZNTX","SEEN",0);
645 gMC->Gsatt("ZN1 ","COLO",2);
646 gMC->Gsatt("ZN1 ","SEEN",1);
647 gMC->Gsatt("ZNSL","SEEN",0);
648 gMC->Gsatt("ZNST","SEEN",0);
649 gMC->Gsatt("ZPRO","SEEN",0);
650 gMC->Gsatt("ZPF1","SEEN",0);
651 gMC->Gsatt("ZPF2","SEEN",0);
652 gMC->Gsatt("ZPF3","SEEN",0);
653 gMC->Gsatt("ZPF4","SEEN",0);
654 gMC->Gsatt("ZPG1","SEEN",0);
655 gMC->Gsatt("ZPG2","SEEN",0);
656 gMC->Gsatt("ZPG3","SEEN",0);
657 gMC->Gsatt("ZPG4","SEEN",0);
658 gMC->Gsatt("ZPTX","SEEN",0);
659 gMC->Gsatt("ZP1 ","COLO",2);
660 gMC->Gsatt("ZP1 ","SEEN",1);
661 gMC->Gsatt("ZPSL","SEEN",0);
662 gMC->Gsatt("ZPST","SEEN",0);
665 gMC->Gdopt("hide", "on");
666 gMC->Gdopt("shad", "on");
667 gMC->Gsatt("*", "fill", 7);
668 gMC->SetClipBox(".");
669 gMC->SetClipBox("*", 0, 100, -100, 100, 12000, 16000);
671 gMC->Gdraw("alic", 40, 30, 0, 488, 220, .07, .07);
672 gMC->Gdhead(1111, "Zero Degree Calorimeter Version 1");
673 gMC->Gdman(18, 4, "MAN");
676 //_____________________________________________________________________________
677 void AliZDCv1::CreateMaterials()
680 // Create Materials for the Zero Degree Calorimeter
682 // Origin : E. Scomparin
684 Int_t *idtmed = fIdtmed->GetArray();
686 Float_t dens, ubuf[1], wmat[2];
690 Float_t z[2], epsil=0.001, stmin=0.01;
692 Float_t fieldm = gAlice->Field()->Max();
695 Float_t tmaxfd=gAlice->Field()->Max();
696 Int_t isxfld = gAlice->Field()->Integ();
699 // --- Store in UBUF r0 for nuclear radius calculation R=r0*A**1/3
701 // --- Tantalum -> ZN passive material
703 AliMaterial(1, "TANT", 180.95, 73., 16.65, .4, 11.9, ubuf, 1);
707 // AliMaterial(1, "TUNG", 183.85, 74., 19.3, .35, 10.3, ubuf, 1);
709 // --- Brass (CuZn) -> ZP passive material
717 AliMixture(2, "BRASS ", a, z, dens, 2, wmat);
727 AliMixture(3, "SIO2 ", a, z, dens, -2, wmat);
731 // AliMaterial(7, "COPP", 63.54, 29., 8.96, 1.4, 0., ubuf, 1);
736 // AliMaterial(6, "LEAD", 207.19, 82., 11.35, .56, 18.5, ubuf, 1);
740 AliMaterial(5, "IRON", 55.85, 26., 7.87, 1.76, 0., ubuf, 1);
742 // --- Vacuum (no magnetic field)
743 AliMaterial(10, "VOID", 1e-16, 1e-16, 1e-16, 1e16, 1e16, ubuf,0);
745 // --- Vacuum (with magnetic field)
746 AliMaterial(11, "VOIM", 1e-16, 1e-16, 1e-16, 1e16, 1e16, ubuf,0);
748 // --- Air (no magnetic field)
749 AliMaterial(12, "Air $", 14.61, 7.3, .001205, 30420., 67500., ubuf, 0);
751 // --- Definition of tracking media:
753 // --- Tantalum = 1 ;
755 // --- Fibers (SiO2) = 3 ;
756 // --- Fibers (SiO2) = 4 ;
759 // --- Vacuum (no field) = 10
760 // --- Vacuum (with field) = 11
761 // --- Air (no field) = 12
764 // --- Tracking media parameters
772 AliMedium(1, "ZTANT", 1, isvolActive, inofld, fieldm, tmaxfd, stemax, deemax, epsil, stmin);
773 // AliMedium(1, "ZW", 1, isvolActive, inofld, fieldm, tmaxfd, stemax, deemax, epsil, stmin);
774 AliMedium(2, "ZBRASS", 2, isvolActive, inofld, fieldm, tmaxfd, stemax, deemax, epsil, stmin);
775 AliMedium(3, "ZSIO2", 3, isvolActive, inofld, fieldm, tmaxfd, stemax, deemax, epsil, stmin);
776 AliMedium(4, "ZQUAR", 3, isvolActive, inofld, fieldm, tmaxfd, stemax, deemax, epsil, stmin);
777 // AliMedium(7, "ZCOPP", 7, isvolActive, inofld, fieldm, tmaxfd, stemax, deemax, epsil, stmin);
778 // AliMedium(6, "ZLEAD", 6, isvolActive, inofld, fieldm, tmaxfd, stemax, deemax, epsil, stmin);
779 AliMedium(5, "ZIRON", 5, isvol, inofld, fieldm, tmaxfd, stemax, deemax, epsil, stmin);
780 AliMedium(10, "ZVOID", 10, isvol, inofld, fieldm, tmaxfd, stemax, deemax, epsil, stmin);
781 AliMedium(12, "ZAIR", 12, 0, inofld, fieldm, tmaxfd, stemax,deemax, epsil, stmin);
784 AliMedium(11, "ZVOIM", 11, isvol, isxfld, fieldm, tmaxfd, stemax, deemax, epsil, stmin);
786 // Thresholds for showering in the ZDCs
789 gMC->Gstpar(idtmed[i], "CUTGAM", .001);
790 gMC->Gstpar(idtmed[i], "CUTELE", .001);
791 gMC->Gstpar(idtmed[i], "CUTNEU", .01);
792 gMC->Gstpar(idtmed[i], "CUTHAD", .01);
794 gMC->Gstpar(idtmed[i], "CUTGAM", .001);
795 gMC->Gstpar(idtmed[i], "CUTELE", .001);
796 gMC->Gstpar(idtmed[i], "CUTNEU", .01);
797 gMC->Gstpar(idtmed[i], "CUTHAD", .01);
799 // Avoid too detailed showering along the beam line
802 gMC->Gstpar(idtmed[i], "CUTGAM", .1);
803 gMC->Gstpar(idtmed[i], "CUTELE", .1);
804 gMC->Gstpar(idtmed[i], "CUTNEU", 1.);
805 gMC->Gstpar(idtmed[i], "CUTHAD", 1.);
807 // Avoid interaction in fibers (only energy loss allowed)
809 gMC->Gstpar(idtmed[i], "DCAY", 0.);
810 gMC->Gstpar(idtmed[i], "MULS", 0.);
811 gMC->Gstpar(idtmed[i], "PFIS", 0.);
812 gMC->Gstpar(idtmed[i], "MUNU", 0.);
813 gMC->Gstpar(idtmed[i], "LOSS", 1.);
814 gMC->Gstpar(idtmed[i], "PHOT", 0.);
815 gMC->Gstpar(idtmed[i], "COMP", 0.);
816 gMC->Gstpar(idtmed[i], "PAIR", 0.);
817 gMC->Gstpar(idtmed[i], "BREM", 0.);
818 gMC->Gstpar(idtmed[i], "DRAY", 0.);
819 gMC->Gstpar(idtmed[i], "ANNI", 0.);
820 gMC->Gstpar(idtmed[i], "HADR", 0.);
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 fMedSensF1 = idtmed[3]; // Sensitive volume: fibres type 1
836 fMedSensF2 = idtmed[4]; // Sensitive volume: fibres type 2
837 fMedSensZN = idtmed[1]; // Sensitive volume: ZN passive material
838 fMedSensZP = idtmed[2]; // Sensitive volume: ZP passive material
839 fMedSensGR = idtmed[12]; // Sensitive volume: air into the grooves
842 //_____________________________________________________________________________
843 void AliZDCv1::Init()
849 //_____________________________________________________________________________
850 void AliZDCv1::InitTables()
852 //Initialize parameters for light tables and read them
858 FILE *fp1, *fp2, *fp3, *fp4, *fp5, *fp6, *fp7, *fp8;
860 if((fp1 = fopen("light22620362207s","r")) == NULL){
861 printf("Cannot open file fp1 \n");
864 if((fp2 = fopen("light22620362208s","r")) == NULL){
865 printf("Cannot open file fp2 \n");
868 if((fp3 = fopen("light22620362209s","r")) == NULL){
869 printf("Cannot open file fp3 \n");
872 if((fp4 = fopen("light22620362210s","r")) == NULL){
873 printf("Cannot open file fp4 \n");
876 // printf(" --- Reading light tables for ZN \n");
877 for(int k=0; k<fNalfan; k++){
878 for(int j=0; j<fNben; j++){
879 fscanf(fp1,"%f",&fTablen[0][k][j]);
880 fscanf(fp2,"%f",&fTablen[1][k][j]);
881 fscanf(fp3,"%f",&fTablen[2][k][j]);
882 fscanf(fp4,"%f",&fTablen[3][k][j]);
890 if((fp5 = fopen("light22620552207s","r")) == NULL){
891 printf("Cannot open file fp5 \n");
894 if((fp6 = fopen("light22620552208s","r")) == NULL){
895 printf("Cannot open file fp6 \n");
898 if((fp7 = fopen("light22620552209s","r")) == NULL){
899 printf("Cannot open file fp7 \n");
902 if((fp8 = fopen("light22620552210s","r")) == NULL){
903 printf("Cannot open file fp8 \n");
906 // printf(" --- Reading light tables for ZP \n");
907 for(int k=0; k<fNalfap; k++){
908 for(int j=0; j<fNbep; j++){
909 fscanf(fp5,"%f",&fTablep[0][k][j]);
910 fscanf(fp6,"%f",&fTablep[1][k][j]);
911 fscanf(fp7,"%f",&fTablep[2][k][j]);
912 fscanf(fp8,"%f",&fTablep[3][k][j]);
921 //_____________________________________________________________________________
922 void AliZDCv1::StepManager()
925 // Routine called at every step in the Zero Degree Calorimeters
928 Int_t vol[2], ibeta, ialfa, ibe;
929 Float_t x[3], xdet[3], destep, hits[9], m, ekin, um[3], ud[3], be, radius, out;
933 if((gMC->GetMedium() == fMedSensZN) || (gMC->GetMedium() == fMedSensZP) ||
934 (gMC->GetMedium() == fMedSensGR) || (gMC->GetMedium() == fMedSensF1) ||
935 (gMC->GetMedium() == fMedSensF2)){
937 //Particle coordinates
938 gMC->TrackPosition(s);
939 for(Int_t j=0; j<=2; j++){
946 // Determine in which ZDC the particle is
947 knamed = gMC->CurrentVolName();
948 if(!strncmp(knamed,"ZN",2))vol[0]=1;
949 if(!strncmp(knamed,"ZP",2))vol[0]=2;
951 // Determine in which quadrant the particle is
954 gMC->Gmtod(x,xdet,1);
956 if((xdet[0]<0.) && (xdet[1]>0.)) vol[1]=1;
957 if((xdet[0]>0.) && (xdet[1]>0.)) vol[1]=2;
958 if((xdet[0]<0.) && (xdet[1]<0.)) vol[1]=3;
959 if((xdet[0]>0.) && (xdet[1]<0.)) vol[1]=4;
964 Float_t xqZP = xdet[0]/(fDimZP[0]/2);
965 for(int i=1; i<=4; i++){
966 if(xqZP>(i-3) && xqZP<(i-2)){
972 // printf(" -> Det. %d Quad. %d \n", vol[0], vol[1]);
974 // Store impact point and kinetic energy of the ENTERING particle
976 // Int_t Curtrack = gAlice->CurrentTrack();
977 // Int_t Prim = gAlice->GetPrimary(Curtrack);
978 // printf ("Primary: %d, Current Track: %d \n", Prim, Curtrack);
980 // if(Curtrack==Prim){
981 if(gMC->IsTrackEntering()){
983 gMC->TrackMomentum(p);
984 // printf("p[0] = %f, p[1] = %f, p[2] = %f, p[3] = %f \n",
985 // p[0], p[1], p[2], p[3]);
988 // Impact point on ZN
995 // printf(" hits[2] = %f \n",hits[2]);
996 AddHit(gAlice->CurrentTrack(), vol, hits);
1000 // Charged particles -> Energy loss
1001 if((destep=gMC->Edep())){
1002 if(gMC->IsTrackStop()){
1003 gMC->TrackMomentum(p);
1004 m = gMC->TrackMass();
1006 if(ekin<0.) printf("ATTENTION!!!!!!!!!!!!!!! -> ekin = %f <0 (?)",ekin);
1010 AddHit(gAlice->CurrentTrack(), vol, hits);
1016 AddHit(gAlice->CurrentTrack(), vol, hits);
1018 // printf(" -> Charged particle -> Dep. E = %f eV \n",hits[8]);
1024 // *** Light production in fibres
1025 if((gMC->GetMedium() == fMedSensF1) || (gMC->GetMedium() == fMedSensF2)){
1026 // printf("%%%%%%%%%%%%%%%% Particle in fibre %%%%%%%%%%%%%%%%\n");
1028 //Select charged particles
1029 if((destep=gMC->Edep())){
1030 // printf(" -> CHARGED particle!!! \n");
1032 // Particle velocity
1033 gMC->TrackMomentum(p);
1034 Float_t ptot=TMath::Sqrt(p[0]*p[0]+p[1]*p[1]+p[2]*p[2]);
1035 Float_t beta = ptot/p[3];
1036 // printf("p[0] = %f, p[1] = %f, p[2] = %f, p[3] = %f, ptot = %f \n",
1037 // p[0], p[1], p[2], p[3], ptot);
1038 // Int_t pcID = gMC->TrackPid();
1039 // printf(" Pc %d in quadrant %d -> beta = %f \n", pcID, vol[1], beta);
1040 if(beta<0.67) return;
1041 if((beta>=0.67) && (beta<=0.75)) ibeta = 0;
1042 if((beta>0.75) && (beta<=0.85)) ibeta = 1;
1043 if((beta>0.85) && (beta<=0.95)) ibeta = 2;
1044 if((beta>0.95) && (beta<=1.00)) ibeta = 3;
1046 // Angle between particle trajectory and fibre axis
1047 // 1 -> Momentum directions
1051 gMC->Gmtod(um,ud,2);
1052 // 2 -> Angle < limit angle
1053 Double_t alfar = TMath::ACos(ud[2]);
1054 Double_t alfa = alfar*kRaddeg;
1055 if(alfa>110.) return;
1056 ialfa = Int_t(1.+alfa/2.);
1058 // Distance between particle trajectory and fibre axis
1059 gMC->TrackPosition(s);
1060 for(Int_t j=0; j<=2; j++){
1063 gMC->Gmtod(x,xdet,1);
1064 if(TMath::Abs(ud[0])>0.00001){
1065 Float_t dcoeff = ud[1]/ud[0];
1066 be = TMath::Abs((xdet[1]-dcoeff*xdet[0])/TMath::Sqrt(dcoeff*dcoeff+1.));
1069 be = TMath::Abs(ud[0]);
1072 if((vol[0]==1)) radius = fFibZN[1];
1073 if((vol[0]==2)) radius = fFibZP[1];
1074 ibe = Int_t(be*1000.+1);
1076 //Looking into the light tables
1077 Float_t charge = gMC->TrackCharge();
1081 if(ibe>fNben) ibe=fNben;
1082 out = charge*charge*fTablen[ibeta][ialfa][ibe];
1083 // printf(" -> fTablen [%d][%d][%d] = %f \n",
1084 // ibeta, ialfa, ibe, fTablen[ibeta][ialfa][ibe]);
1085 if(gMC->GetMedium() == fMedSensF1){
1086 hits[7] = out; //fLightPMQ
1089 AddHit(gAlice->CurrentTrack(), vol, hits);
1093 hits[8] = out; //fLightPMC
1095 AddHit(gAlice->CurrentTrack(), vol, hits);
1101 if(ibe>fNbep) ibe=fNbep;
1102 out = charge*charge*fTablep[ibeta][ialfa][ibe];
1103 // printf(" -> fTablep [%d][%d][%d] = %f\n",
1104 // ibeta, ialfa, ibe, fTablen[ibeta][ialfa][ibe]);
1105 if(gMC->GetMedium() == fMedSensF1){
1106 hits[7] = out; //fLightPMQ
1109 AddHit(gAlice->CurrentTrack(), vol, hits);
1113 hits[8] = out; //fLightPMC
1115 AddHit(gAlice->CurrentTrack(), vol, hits);