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 1.22 2001/08/28 08:45:59 vicinanz
19 TTask and TFolder structures implemented
21 Revision 1.21 2001/05/16 14:57:24 alibrary
22 New files for folders and Stack
24 Revision 1.20 2001/05/04 10:09:48 vicinanz
25 Major upgrades to the strip structure
27 Revision 1.19 2000/12/04 08:48:20 alibrary
28 Fixing problems in the HEAD
30 Revision 1.18 2000/10/02 21:28:17 fca
31 Removal of useless dependecies via forward declarations
33 Revision 1.17 2000/06/06 07:52:09 vicinanz
34 NodeName array dimension enlarged
36 Revision 1.16 2000/05/10 16:52:18 vicinanz
37 New TOF version with holes for PHOS/RICH
39 Revision 1.14.2.1 2000/05/10 09:37:16 vicinanz
40 New version with Holes for PHOS/RICH
42 Revision 1.14 1999/11/05 22:39:06 fca
45 Revision 1.13 1999/11/02 11:26:39 fca
46 added stdlib.h for exit
48 Revision 1.12 1999/11/01 20:41:57 fca
49 Added protections against using the wrong version of FRAME
51 Revision 1.11 1999/10/22 08:04:14 fca
52 Correct improper use of negative parameters
54 Revision 1.10 1999/10/16 19:30:06 fca
55 Corrected Rotation Matrix and CVS log
57 Revision 1.9 1999/10/15 15:35:20 fca
58 New version for frame1099 with and without holes
60 Revision 1.8 1999/09/29 09:24:33 fca
61 Introduction of the Copyright and cvs Log
65 ///////////////////////////////////////////////////////////////////////////////
67 // Time Of Flight: design of C.Williams //
69 // This class contains the functions for version 1 of the Time Of Flight //
72 // VERSION WITH 5 MODULES AND TILTED STRIPS
74 // HOLES FOR PHOS DETECTOR
81 // University of Salerno - Italy
84 // University of Bologna - Italy
89 <img src="picts/AliTOFv1Class.gif">
93 ///////////////////////////////////////////////////////////////////////////////
100 #include "TGeometry.h"
103 #include <TLorentzVector.h>
107 #include "AliConst.h"
112 //_____________________________________________________________________________
116 // Default constructor
120 //_____________________________________________________________________________
121 AliTOFv1::AliTOFv1(const char *name, const char *title)
125 // Standard constructor
128 // Check that FRAME is there otherwise we have no place where to
130 AliModule* frame=gAlice->GetModule("FRAME");
132 Error("Ctor","TOF needs FRAME to be present\n");
135 if(frame->IsVersion()!=1) {
136 Error("Ctor","FRAME version 1 needed with this version of TOF\n");
144 //____________________________________________________________________________
145 AliTOFv1::~AliTOFv1()
169 //_____________________________________________________________________________
170 void AliTOFv1::BuildGeometry()
173 // Build TOF ROOT geometry for the ALICE event display
176 const int kColorTOF = 27;
179 top = gAlice->GetGeometry()->GetNode("alice");
181 // Position the different copies
182 const Float_t krTof =(fRmax+fRmin)/2;
183 const Float_t khTof = fRmax-fRmin;
184 const Int_t kNTof = fNTof;
185 const Float_t kPi = TMath::Pi();
186 const Float_t kangle = 2*kPi/kNTof;
189 // Define TOF basic volume
191 char nodeName0[7], nodeName1[7], nodeName2[7];
192 char nodeName3[7], nodeName4[7], rotMatNum[7];
194 new TBRIK("S_TOF_C","TOF box","void",
195 120*0.5,khTof*0.5,fZlenC*0.5);
196 new TBRIK("S_TOF_B","TOF box","void",
197 120*0.5,khTof*0.5,fZlenB*0.5);
198 new TBRIK("S_TOF_A","TOF box","void",
199 120*0.5,khTof*0.5,fZlenA*0.5);
201 for (Int_t nodeNum=1;nodeNum<19;nodeNum++){
204 sprintf(rotMatNum,"rot50%i",nodeNum);
205 sprintf(nodeName0,"FTO00%i",nodeNum);
206 sprintf(nodeName1,"FTO10%i",nodeNum);
207 sprintf(nodeName2,"FTO20%i",nodeNum);
208 sprintf(nodeName3,"FTO30%i",nodeNum);
209 sprintf(nodeName4,"FTO40%i",nodeNum);
212 sprintf(rotMatNum,"rot5%i",nodeNum);
213 sprintf(nodeName0,"FTO0%i",nodeNum);
214 sprintf(nodeName1,"FTO1%i",nodeNum);
215 sprintf(nodeName2,"FTO2%i",nodeNum);
216 sprintf(nodeName3,"FTO3%i",nodeNum);
217 sprintf(nodeName4,"FTO4%i",nodeNum);
220 new TRotMatrix(rotMatNum,rotMatNum,90,-20*nodeNum,90,90-20*nodeNum,0,0);
221 ang = (4.5-nodeNum) * kangle;
224 node = new TNode(nodeName0,nodeName0,"S_TOF_C",krTof*TMath::Cos(ang),krTof*TMath::Sin(ang),299.15,rotMatNum);
225 node->SetLineColor(kColorTOF);
229 node = new TNode(nodeName1,nodeName1,"S_TOF_C",krTof*TMath::Cos(ang),krTof*TMath::Sin(ang),-299.15,rotMatNum);
230 node->SetLineColor(kColorTOF);
234 node = new TNode(nodeName2,nodeName2,"S_TOF_B",krTof*TMath::Cos(ang),krTof*TMath::Sin(ang),146.45,rotMatNum);
235 node->SetLineColor(kColorTOF);
239 node = new TNode(nodeName3,nodeName3,"S_TOF_B",krTof*TMath::Cos(ang),krTof*TMath::Sin(ang),-146.45,rotMatNum);
240 node->SetLineColor(kColorTOF);
243 if (nodeNum<8 || nodeNum>12) {
245 node = new TNode(nodeName4,nodeName4,"S_TOF_A",krTof*TMath::Cos(ang),krTof*TMath::Sin(ang),0.,rotMatNum);
246 node->SetLineColor(kColorTOF);
248 } // Modules A which are not to be installed for PHOS holes.
249 } // end loop on nodeNum
253 //_____________________________________________________________________________
254 void AliTOFv1::CreateGeometry()
257 // Create geometry for Time Of Flight version 0
261 <img src="picts/AliTOFv1.gif">
265 // Creates common geometry
267 AliTOF::CreateGeometry();
270 //_____________________________________________________________________________
271 void AliTOFv1::TOFpc(Float_t xtof, Float_t ytof, Float_t zlenC,
272 Float_t zlenB, Float_t zlenA, Float_t ztof0)
275 // Definition of the Time Of Fligh Resistive Plate Chambers
276 // xFLT, yFLT, zFLT - sizes of TOF modules (large)
278 Float_t ycoor, zcoor;
280 Int_t *idtmed = fIdtmed->GetArray()-499;
283 Float_t hTof = fRmax-fRmin;
285 Float_t radius = fRmin+2.;//cm
289 par[2] = zlenC * 0.5;
290 gMC->Gsvolu("FTOC", "BOX ", idtmed[506], par, 3);
291 par[2] = zlenB * 0.5;
292 gMC->Gsvolu("FTOB", "BOX ", idtmed[506], par, 3);
293 par[2] = zlenA * 0.5;
294 gMC->Gsvolu("FTOA", "BOX ", idtmed[506], par, 3);
297 // Positioning of modules
299 Float_t zcor1 = ztof0 - zlenC*0.5;
300 Float_t zcor2 = ztof0 - zlenC - zlenB*0.5;
303 AliMatrix(idrotm[0], 90., 0., 0., 0., 90,-90.);
304 AliMatrix(idrotm[1], 90.,180., 0., 0., 90, 90.);
305 gMC->Gspos("FTOC", 1, "BTO1", 0, zcor1, 0, idrotm[0], "ONLY");
306 gMC->Gspos("FTOC", 2, "BTO1", 0, -zcor1, 0, idrotm[1], "ONLY");
307 gMC->Gspos("FTOC", 1, "BTO2", 0, zcor1, 0, idrotm[0], "ONLY");
308 gMC->Gspos("FTOC", 2, "BTO2", 0, -zcor1, 0, idrotm[1], "ONLY");
309 gMC->Gspos("FTOC", 1, "BTO3", 0, zcor1, 0, idrotm[0], "ONLY");
310 gMC->Gspos("FTOC", 2, "BTO3", 0, -zcor1, 0, idrotm[1], "ONLY");
312 gMC->Gspos("FTOB", 1, "BTO1", 0, zcor2, 0, idrotm[0], "ONLY");
313 gMC->Gspos("FTOB", 2, "BTO1", 0, -zcor2, 0, idrotm[1], "ONLY");
314 gMC->Gspos("FTOB", 1, "BTO2", 0, zcor2, 0, idrotm[0], "ONLY");
315 gMC->Gspos("FTOB", 2, "BTO2", 0, -zcor2, 0, idrotm[1], "ONLY");
316 gMC->Gspos("FTOB", 1, "BTO3", 0, zcor2, 0, idrotm[0], "ONLY");
317 gMC->Gspos("FTOB", 2, "BTO3", 0, -zcor2, 0, idrotm[1], "ONLY");
319 gMC->Gspos("FTOA", 0, "BTO1", 0, zcor3, 0, idrotm[0], "ONLY");
320 gMC->Gspos("FTOA", 0, "BTO3", 0, zcor3, 0, idrotm[0], "ONLY");
322 Float_t db = 0.5;//cm
323 Float_t xFLT, xFST, yFLT, zFLTA, zFLTB, zFLTC;
331 xFST = xFLT-fDeadBndX*2;//cm
333 // Sizes of MRPC pads
335 Float_t yPad = 0.505;//cm
337 // Large not sensitive volumes with Insensitive Freon
341 if(fDebug) cout << ClassName()
342 << ": ************************* TOF geometry **************************"
345 par[2] = (zFLTA *0.5);
346 gMC->Gsvolu("FLTA", "BOX ", idtmed[512], par, 3); // Insensitive Freon
347 gMC->Gspos ("FLTA", 0, "FTOA", 0., 0., 0., 0, "ONLY");
349 par[2] = (zFLTB * 0.5);
350 gMC->Gsvolu("FLTB", "BOX ", idtmed[512], par, 3); // Insensitive Freon
351 gMC->Gspos ("FLTB", 0, "FTOB", 0., 0., 0., 0, "ONLY");
353 par[2] = (zFLTC * 0.5);
354 gMC->Gsvolu("FLTC", "BOX ", idtmed[512], par, 3); // Insensitive Freon
355 gMC->Gspos ("FLTC", 0, "FTOC", 0., 0., 0., 0, "ONLY");
357 ////////// Layers of Aluminum before and after detector //////////
358 ////////// Aluminum Box for Modules (2.0 mm thickness) /////////
359 ////////// lateral walls not simulated
362 ycoor = -yFLT/2 + par[1];
363 par[2] = (zFLTA *0.5);
364 gMC->Gsvolu("FALA", "BOX ", idtmed[508], par, 3); // Alluminium
365 gMC->Gspos ("FALA", 1, "FLTA", 0., ycoor, 0., 0, "ONLY");
366 gMC->Gspos ("FALA", 2, "FLTA", 0.,-ycoor, 0., 0, "ONLY");
367 par[2] = (zFLTB *0.5);
368 gMC->Gsvolu("FALB", "BOX ", idtmed[508], par, 3); // Alluminium
369 gMC->Gspos ("FALB", 1, "FLTB", 0., ycoor, 0., 0, "ONLY");
370 gMC->Gspos ("FALB", 2, "FLTB", 0.,-ycoor, 0., 0, "ONLY");
371 par[2] = (zFLTC *0.5);
372 gMC->Gsvolu("FALC", "BOX ", idtmed[508], par, 3); // Alluminium
373 gMC->Gspos ("FALC", 1, "FLTC", 0., ycoor, 0., 0, "ONLY");
374 gMC->Gspos ("FALC", 2, "FLTC", 0.,-ycoor, 0., 0, "ONLY");
376 ///////////////// Detector itself //////////////////////
378 const Float_t kdeadBound = fDeadBndZ; //cm non-sensitive between the pad edge
379 //and the boundary of the strip
380 const Int_t knx = fNpadX; // number of pads along x
381 const Int_t knz = fNpadZ; // number of pads along z
382 const Float_t kspace = fSpace; //cm distance from the front plate of the box
384 Float_t zSenStrip = fZpad*fNpadZ;//cm
385 Float_t stripWidth = zSenStrip + 2*kdeadBound;
389 par[2] = stripWidth*0.5;
391 // new description for strip volume -double stack strip-
392 // -- all constants are expressed in cm
393 // heigth of different layers
394 const Float_t khhony = 1. ; // heigth of HONY Layer
395 const Float_t khpcby = 0.15 ; // heigth of PCB Layer
396 const Float_t khmyly = 0.035 ; // heigth of MYLAR Layer
397 const Float_t khgraphy = 0.02 ; // heigth of GRAPHITE Layer
398 const Float_t khglasseiy = 0.17; // 0.6 Ext. Glass + 1.1 i.e. (Int. Glass/2) (mm)
399 const Float_t khsensmy = 0.11 ; // heigth of Sensitive Freon Mixture
400 const Float_t kwsensmz = 2*3.5 ; // cm
401 const Float_t klsensmx = 48*2.5; // cm
402 const Float_t kwpadz = 3.5; // cm z dimension of the FPAD volume
403 const Float_t klpadx = 2.5; // cm x dimension of the FPAD volume
405 // heigth of the FSTR Volume (the strip volume)
406 const Float_t khstripy = 2*khhony+3*khpcby+4*(khmyly+khgraphy+khglasseiy)+2*khsensmy;
407 // width of the FSTR Volume (the strip volume)
408 const Float_t kwstripz = 10.;
409 // length of the FSTR Volume (the strip volume)
410 const Float_t klstripx = 122.;
412 Float_t parfp[3]={klstripx*0.5,khstripy*0.5,kwstripz*0.5};
413 // coordinates of the strip center in the strip reference frame; used for positioning
414 // internal strip volumes
415 Float_t posfp[3]={0.,0.,0.};
418 // FSTR volume definition and filling this volume with non sensitive Gas Mixture
419 gMC->Gsvolu("FSTR","BOX",idtmed[512],parfp,3);
420 //-- HONY Layer definition
422 parfp[1] = khhony*0.5;
424 gMC->Gsvolu("FHON","BOX",idtmed[503],parfp,3);
425 // positioning 2 HONY Layers on FSTR volume
427 posfp[1]=-khstripy*0.5+parfp[1];
428 gMC->Gspos("FHON",1,"FSTR",0., posfp[1],0.,0,"ONLY");
429 gMC->Gspos("FHON",2,"FSTR",0.,-posfp[1],0.,0,"ONLY");
431 //-- PCB Layer definition
432 parfp[1] = khpcby*0.5;
433 gMC->Gsvolu("FPCB","BOX",idtmed[504],parfp,3);
434 // positioning 2 PCB Layers on FSTR volume
435 posfp[1]=-khstripy*0.5+khhony+parfp[1];
436 gMC->Gspos("FPCB",1,"FSTR",0., posfp[1],0.,0,"ONLY");
437 gMC->Gspos("FPCB",2,"FSTR",0.,-posfp[1],0.,0,"ONLY");
438 // positioning the central PCB layer
439 gMC->Gspos("FPCB",3,"FSTR",0.,0.,0.,0,"ONLY");
443 //-- MYLAR Layer definition
444 parfp[1] = khmyly*0.5;
445 gMC->Gsvolu("FMYL","BOX",idtmed[511],parfp,3);
446 // positioning 2 MYLAR Layers on FSTR volume
447 posfp[1] = -khstripy*0.5+khhony+khpcby+parfp[1];
448 gMC->Gspos("FMYL",1,"FSTR",0., posfp[1],0.,0,"ONLY");
449 gMC->Gspos("FMYL",2,"FSTR",0.,-posfp[1],0.,0,"ONLY");
450 // adding further 2 MYLAR Layers on FSTR volume
451 posfp[1] = khpcby*0.5+parfp[1];
452 gMC->Gspos("FMYL",3,"FSTR",0., posfp[1],0.,0,"ONLY");
453 gMC->Gspos("FMYL",4,"FSTR",0.,-posfp[1],0.,0,"ONLY");
456 //-- Graphite Layer definition
457 parfp[1] = khgraphy*0.5;
458 gMC->Gsvolu("FGRP","BOX",idtmed[502],parfp,3);
459 // positioning 2 Graphite Layers on FSTR volume
460 posfp[1] = -khstripy*0.5+khhony+khpcby+khmyly+parfp[1];
461 gMC->Gspos("FGRP",1,"FSTR",0., posfp[1],0.,0,"ONLY");
462 gMC->Gspos("FGRP",2,"FSTR",0.,-posfp[1],0.,0,"ONLY");
463 // adding further 2 Graphite Layers on FSTR volume
464 posfp[1] = khpcby*0.5+khmyly+parfp[1];
465 gMC->Gspos("FGRP",3,"FSTR",0., posfp[1],0.,0,"ONLY");
466 gMC->Gspos("FGRP",4,"FSTR",0.,-posfp[1],0.,0,"ONLY");
469 //-- Glass (EXT. +Semi INT.) Layer definition
470 parfp[1] = khglasseiy*0.5;
471 gMC->Gsvolu("FGLA","BOX",idtmed[514],parfp,3);
472 // positioning 2 Glass Layers on FSTR volume
473 posfp[1] = -khstripy*0.5+khhony+khpcby+khmyly+khgraphy+parfp[1];
474 gMC->Gspos("FGLA",1,"FSTR",0., posfp[1],0.,0,"ONLY");
475 gMC->Gspos("FGLA",2,"FSTR",0.,-posfp[1],0.,0,"ONLY");
476 // adding further 2 Glass Layers on FSTR volume
477 posfp[1] = khpcby*0.5+khmyly+khgraphy+parfp[1];
478 gMC->Gspos("FGLA",3,"FSTR",0., posfp[1],0.,0,"ONLY");
479 gMC->Gspos("FGLA",4,"FSTR",0.,-posfp[1],0.,0,"ONLY");
482 //-- Sensitive Mixture Layer definition
483 parfp[0] = klsensmx*0.5;
484 parfp[1] = khsensmy*0.5;
485 parfp[2] = kwsensmz*0.5;
486 gMC->Gsvolu("FSEN","BOX",idtmed[513],parfp,3);
487 gMC->Gsvolu("FNSE","BOX",idtmed[512],parfp,3);
488 // positioning 2 gas Layers on FSTR volume
489 // the upper is insensitive freon
490 // while the remaining is sensitive
491 posfp[1] = khpcby*0.5+khmyly+khgraphy+khglasseiy+parfp[1];
492 gMC->Gspos("FNSE",0,"FSTR", 0., posfp[1],0.,0,"ONLY");
493 gMC->Gspos("FSEN",0,"FSTR", 0.,-posfp[1],0.,0,"ONLY");
495 // dividing FSEN along z in knz=2 and along x in knx=48
496 gMC->Gsdvn("FSEZ","FSEN",knz,3);
497 gMC->Gsdvn("FSEX","FSEZ",knx,1);
499 // FPAD volume definition
500 parfp[0] = klpadx*0.5;
501 parfp[1] = khsensmy*0.5;
502 parfp[2] = kwpadz*0.5;
503 gMC->Gsvolu("FPAD","BOX",idtmed[513],parfp,3);
504 // positioning the FPAD volumes on previous divisions
505 gMC->Gspos("FPAD",0,"FSEX",0.,0.,0.,0,"ONLY");
507 //// Positioning the Strips (FSTR) in the FLT volumes /////
511 Float_t t = zFLTC+zFLTB+zFLTA*0.5+ 2*db;//Half Width of Barrel
513 Float_t gap = fGapA; //cm distance between the strip axis
519 ycoor = -14.5 + kspace ; //2 cm over front plate
521 AliMatrix (idrotm[0], 90., 0.,90.,90.,0., 90.);
522 gMC->Gspos("FSTR",j,"FLTA",0.,ycoor, 0.,idrotm[0],"ONLY");
524 printf("%f, St. %2i, Pl.3 ",ang*kRaddeg,i);
525 printf("y = %f, z = %f, zpos = %f \n",ycoor,zcoor,zpos);
529 Int_t upDown = -1; // upDown=-1 -> Upper strip
530 // upDown=+1 -> Lower strip
532 ang = atan(zcoor/radius);
534 AliMatrix (idrotm[nrot], 90., 0.,90.-ang,90.,-ang, 90.);
535 AliMatrix (idrotm[nrot+1],90.,180.,90.+ang,90., ang, 90.);
537 ycoor = -14.5+ kspace; //2 cm over front plate
538 ycoor += (1-(upDown+1)/2)*gap;
539 gMC->Gspos("FSTR",j ,"FLTA",0.,ycoor, zcoor,idrotm[nrot], "ONLY");
540 gMC->Gspos("FSTR",j+1,"FLTA",0.,ycoor,-zcoor,idrotm[nrot+1],"ONLY");
542 printf("%f, St. %2i, Pl.3 ",ang*kRaddeg,i);
543 printf("y = %f, z = %f, zpos = %f \n",ycoor,zcoor,zpos);
546 upDown*= -1; // Alternate strips
547 zcoor = zcoor-(zSenStrip/2)/TMath::Cos(ang)-
548 upDown*gap*TMath::Tan(ang)-
549 (zSenStrip/2)/TMath::Cos(ang);
550 } while (zcoor-(stripWidth/2)*TMath::Cos(ang)>-t+zFLTC+zFLTB+db*2);
552 zcoor = zcoor+(zSenStrip/2)/TMath::Cos(ang)+
553 upDown*gap*TMath::Tan(ang)+
554 (zSenStrip/2)/TMath::Cos(ang);
557 zcoor = zcoor-(zSenStrip/2)/TMath::Cos(ang)-
558 upDown*gap*TMath::Tan(ang)-
559 (zSenStrip/2)/TMath::Cos(ang);
561 ang = atan(zcoor/radius);
563 AliMatrix (idrotm[nrot], 90., 0.,90.-ang,90.,-ang, 90.);
564 AliMatrix (idrotm[nrot+1],90.,180.,90.+ang,90., ang, 90.);
567 ycoor = -14.5+ kspace; //2 cm over front plate
568 ycoor += (1-(upDown+1)/2)*gap;
569 gMC->Gspos("FSTR",j ,"FLTA",0.,ycoor, zcoor,idrotm[nrot], "ONLY");
570 gMC->Gspos("FSTR",j+1,"FLTA",0.,ycoor,-zcoor,idrotm[nrot+1],"ONLY");
572 printf("%f, St. %2i, Pl.3 ",ang*kRaddeg,i);
573 printf("y = %f, z = %f, zpos = %f \n",ycoor,zcoor,zpos);
575 ycoor = -hTof/2.+ kspace;//2 cm over front plate
582 Float_t deadRegion = 1.0;//cm
584 zpos = zcoor - (zSenStrip/2)/TMath::Cos(ang)-
585 upDown*gap*TMath::Tan(ang)-
586 (zSenStrip/2)/TMath::Cos(ang)-
587 deadRegion/TMath::Cos(ang);
589 ang = atan(zpos/radius);
591 AliMatrix (idrotm[nrot], 90., 0., 90.-ang,90.,ang, 270.);
593 ycoor = -hTof*0.5+ kspace ; //2 cm over front plate
594 ycoor += (1-(upDown+1)/2)*gap;
595 zcoor = zpos+(zFLTA*0.5+zFLTB*0.5+db); // Moves to the system of the modulus FLTB
596 gMC->Gspos("FSTR",i, "FLTB", 0., ycoor, zcoor,idrotm[nrot], "ONLY");
598 printf("%f, St. %2i, Pl.4 ",ang*kRaddeg,i);
599 printf("y = %f, z = %f, zpos = %f \n",ycoor,zcoor,zpos);
605 zpos = zpos - (zSenStrip/2)/TMath::Cos(ang)-
606 upDown*gap*TMath::Tan(ang)-
607 (zSenStrip/2)/TMath::Cos(ang);
608 ang = atan(zpos/radius);
610 AliMatrix (idrotm[nrot], 90., 0., 90.-ang,90.,ang, 270.);
612 ycoor = -hTof*0.5+ kspace ; //2 cm over front plate
613 ycoor += (1-(upDown+1)/2)*gap;
614 zcoor = zpos+(zFLTA*0.5+zFLTB*0.5+db); // Moves to the system of the modulus FLTB
615 gMC->Gspos("FSTR",i, "FLTB", 0., ycoor, zcoor,idrotm[nrot], "ONLY");
617 printf("%f, St. %2i, Pl.4 ",ang*kRaddeg,i);
618 printf("y = %f, z = %f, zpos = %f \n",ycoor,zcoor,zpos);
622 } while (TMath::Abs(ang*kRaddeg)<22.5);
623 //till we reach a tilting angle of 22.5 degrees
625 ycoor = -hTof*0.5+ kspace ; //2 cm over front plate
626 zpos = zpos - zSenStrip/TMath::Cos(ang);
629 ang = atan(zpos/radius);
631 AliMatrix (idrotm[nrot], 90., 0., 90.-ang,90.,ang, 270.);
633 zcoor = zpos+(zFLTB/2+zFLTA/2+db);
634 gMC->Gspos("FSTR",i, "FLTB", 0., ycoor, zcoor,idrotm[nrot], "ONLY");
635 zpos = zpos - zSenStrip/TMath::Cos(ang);
636 printf("%f, St. %2i, Pl.4 ",ang*kRaddeg,i);
637 printf("y = %f, z = %f, zpos = %f \n",ycoor,zcoor,zpos);
640 } while (zpos-stripWidth*0.5/TMath::Cos(ang)>-t+zFLTC+db);
644 zpos = zpos + zSenStrip/TMath::Cos(ang);
646 zpos = zpos - (zSenStrip/2)/TMath::Cos(ang)+
648 (zSenStrip/2)/TMath::Cos(ang);
652 ycoor= -hTof*0.5+kspace+gap;
656 ang = atan(zpos/radius);
658 AliMatrix (idrotm[nrot], 90., 0., 90.-ang,90.,ang, 270.);
660 zcoor = zpos+(zFLTC*0.5+zFLTB+zFLTA*0.5+db*2);
661 gMC->Gspos("FSTR",i, "FLTC", 0., ycoor, zcoor,idrotm[nrot], "ONLY");
663 printf("%f, St. %2i, Pl.5 ",ang*kRaddeg,i);
664 printf("y = %f, z = %f, zpos = %f \n",ycoor,zcoor,zpos);
666 zpos = zpos - zSenStrip/TMath::Cos(ang);
667 } while (zpos-stripWidth*TMath::Cos(ang)*0.5>-t);
670 ////////// Layers after strips /////////////////
671 // honeycomb (Polyethilene) Layer after (1.2cm)
673 Float_t overSpace = fOverSpc;//cm
677 par[2] = (zFLTA *0.5);
678 ycoor = -yFLT/2 + overSpace + par[1];
679 gMC->Gsvolu("FPEA", "BOX ", idtmed[503], par, 3); // Hony
680 gMC->Gspos ("FPEA", 0, "FLTA", 0., ycoor, 0., 0, "ONLY");
681 par[2] = (zFLTB *0.5);
682 gMC->Gsvolu("FPEB", "BOX ", idtmed[503], par, 3); // Hony
683 gMC->Gspos ("FPEB", 0, "FLTB", 0., ycoor, 0., 0, "ONLY");
684 par[2] = (zFLTC *0.5);
685 gMC->Gsvolu("FPEC", "BOX ", idtmed[503], par, 3); // Hony
686 gMC->Gspos ("FPEC", 0, "FLTC", 0., ycoor, 0., 0, "ONLY");
688 // Electronics (Cu) after
691 par[1] = 1.43*0.05*0.5; // 5% of X0
692 par[2] = (zFLTA *0.5);
694 gMC->Gsvolu("FECA", "BOX ", idtmed[501], par, 3); // Cu
695 gMC->Gspos ("FECA", 0, "FLTA", 0., ycoor, 0., 0, "ONLY");
696 par[2] = (zFLTB *0.5);
697 gMC->Gsvolu("FECB", "BOX ", idtmed[501], par, 3); // Cu
698 gMC->Gspos ("FECB", 0, "FLTB", 0., ycoor, 0., 0, "ONLY");
699 par[2] = (zFLTC *0.5);
700 gMC->Gsvolu("FECC", "BOX ", idtmed[501], par, 3); // Cu
701 gMC->Gspos ("FECC", 0, "FLTC", 0., ycoor, 0., 0, "ONLY");
703 // cooling WAter after
706 par[1] = 36.1*0.02*0.5; // 2% of X0
707 par[2] = (zFLTA *0.5);
709 gMC->Gsvolu("FWAA", "BOX ", idtmed[515], par, 3); // Water
710 gMC->Gspos ("FWAA", 0, "FLTA", 0., ycoor, 0., 0, "ONLY");
711 par[2] = (zFLTB *0.5);
712 gMC->Gsvolu("FWAB", "BOX ", idtmed[515], par, 3); // Water
713 gMC->Gspos ("FWAB", 0, "FLTB", 0., ycoor, 0., 0, "ONLY");
714 par[2] = (zFLTC *0.5);
715 gMC->Gsvolu("FWAC", "BOX ", idtmed[515], par, 3); // Water
716 gMC->Gspos ("FWAC", 0, "FLTC", 0., ycoor, 0., 0, "ONLY");
721 par[1] = (yFLT/2-ycoor-0.2)*0.5; // Aluminum layer considered (0.2 cm)
722 par[2] = (zFLTA *0.5);
724 gMC->Gsvolu("FAIA", "BOX ", idtmed[500], par, 3); // Air
725 gMC->Gspos ("FAIA", 0, "FLTA", 0., ycoor, 0., 0, "ONLY");
726 par[2] = (zFLTB *0.5);
727 gMC->Gsvolu("FAIB", "BOX ", idtmed[500], par, 3); // Air
728 gMC->Gspos ("FAIB", 0, "FLTB", 0., ycoor, 0., 0, "ONLY");
729 par[2] = (zFLTC *0.5);
730 gMC->Gsvolu("FAIC", "BOX ", idtmed[500], par, 3); // Air
731 gMC->Gspos ("FAIC", 0, "FLTC", 0., ycoor, 0., 0, "ONLY");
733 //Back Plate honycomb (2cm)
737 ycoor = yFLT/2 - par[1];
738 gMC->Gsvolu("FBPA", "BOX ", idtmed[503], par, 3); // Hony
739 gMC->Gspos ("FBPA", 0, "FLTA", 0., ycoor, 0., 0, "ONLY");
740 gMC->Gsvolu("FBPB", "BOX ", idtmed[503], par, 3); // Hony
741 gMC->Gspos ("FBPB", 0, "FLTB", 0., ycoor, 0., 0, "ONLY");
742 gMC->Gsvolu("FBPC", "BOX ", idtmed[503], par, 3); // Hony
743 gMC->Gspos ("FBPC", 0, "FLTC", 0., ycoor, 0., 0, "ONLY");
747 //_____________________________________________________________________________
748 void AliTOFv1::DrawModule() const
751 // Draw a shaded view of the Time Of Flight version 1
753 // Set everything unseen
754 gMC->Gsatt("*", "seen", -1);
756 // Set ALIC mother transparent
757 gMC->Gsatt("ALIC","SEEN",0);
759 // Set the volumes visible
760 gMC->Gsatt("ALIC","SEEN",0);
762 gMC->Gsatt("FTOA","SEEN",1);
763 gMC->Gsatt("FTOB","SEEN",1);
764 gMC->Gsatt("FTOC","SEEN",1);
765 gMC->Gsatt("FLTA","SEEN",1);
766 gMC->Gsatt("FLTB","SEEN",1);
767 gMC->Gsatt("FLTC","SEEN",1);
768 gMC->Gsatt("FPLA","SEEN",1);
769 gMC->Gsatt("FPLB","SEEN",1);
770 gMC->Gsatt("FPLC","SEEN",1);
771 gMC->Gsatt("FSTR","SEEN",1);
772 gMC->Gsatt("FPEA","SEEN",1);
773 gMC->Gsatt("FPEB","SEEN",1);
774 gMC->Gsatt("FPEC","SEEN",1);
776 gMC->Gsatt("FLZ1","SEEN",0);
777 gMC->Gsatt("FLZ2","SEEN",0);
778 gMC->Gsatt("FLZ3","SEEN",0);
779 gMC->Gsatt("FLX1","SEEN",0);
780 gMC->Gsatt("FLX2","SEEN",0);
781 gMC->Gsatt("FLX3","SEEN",0);
782 gMC->Gsatt("FPAD","SEEN",0);
784 gMC->Gdopt("hide", "on");
785 gMC->Gdopt("shad", "on");
786 gMC->Gsatt("*", "fill", 7);
787 gMC->SetClipBox(".");
788 gMC->SetClipBox("*", 0, 1000, -1000, 1000, -1000, 1000);
790 gMC->Gdraw("alic", 40, 30, 0, 12, 9.5, .02, .02);
791 gMC->Gdhead(1111, "Time Of Flight");
792 gMC->Gdman(18, 4, "MAN");
793 gMC->Gdopt("hide","off");
796 //_____________________________________________________________________________
797 void AliTOFv1::CreateMaterials()
800 // Define materials for the Time Of Flight
802 AliTOF::CreateMaterials();
805 //_____________________________________________________________________________
806 void AliTOFv1::Init()
809 // Initialise the detector after the geometry has been defined
811 printf("**************************************"
813 "**************************************\n");
814 printf("\n Version 1 of TOF initialing, "
815 "TOF with holes for PHOS detector\n");
819 fIdFTOA = gMC->VolId("FTOA");
820 fIdFTOB = gMC->VolId("FTOB");
821 fIdFTOC = gMC->VolId("FTOC");
822 fIdFLTA = gMC->VolId("FLTA");
823 fIdFLTB = gMC->VolId("FLTB");
824 fIdFLTC = gMC->VolId("FLTC");
826 printf("**************************************"
828 "**************************************\n");
831 //_____________________________________________________________________________
832 void AliTOFv1::StepManager()
835 // Procedure called at each step in the Time Of Flight
837 TLorentzVector mom, pos;
838 Float_t xm[3],pm[3],xpad[3],ppad[3];
839 Float_t hits[13],phi,phid,z;
841 Int_t sector, plate, padx, padz, strip;
842 Int_t copy, padzid, padxid, stripid, i;
843 Int_t *idtmed = fIdtmed->GetArray()-499;
844 Float_t incidenceAngle;
846 if(gMC->GetMedium()==idtmed[513] &&
847 gMC->IsTrackEntering() && gMC->TrackCharge()
848 && gMC->CurrentVolID(copy)==fIdSens)
850 // getting information about hit volumes
852 padzid=gMC->CurrentVolOffID(2,copy);
855 padxid=gMC->CurrentVolOffID(1,copy);
858 stripid=gMC->CurrentVolOffID(4,copy);
861 gMC->TrackPosition(pos);
862 gMC->TrackMomentum(mom);
864 // Double_t NormPos=1./pos.Rho();
865 Double_t normMom=1./mom.Rho();
867 // getting the cohordinates in pad ref system
868 xm[0] = (Float_t)pos.X();
869 xm[1] = (Float_t)pos.Y();
870 xm[2] = (Float_t)pos.Z();
872 pm[0] = (Float_t)mom.X()*normMom;
873 pm[1] = (Float_t)mom.Y()*normMom;
874 pm[2] = (Float_t)mom.Z()*normMom;
876 gMC->Gmtod(xm,xpad,1);
877 gMC->Gmtod(pm,ppad,2);
879 incidenceAngle = TMath::ACos(ppad[1])*kRaddeg;
884 if (TMath::Abs(z) <= fZlenA*0.5) plate = 3;
885 if (z < (fZlenA*0.5+fZlenB) &&
886 z > fZlenA*0.5) plate = 4;
887 if (z >-(fZlenA*0.5+fZlenB) &&
888 z < -fZlenA*0.5) plate = 2;
889 if (z > (fZlenA*0.5+fZlenB)) plate = 5;
890 if (z <-(fZlenA*0.5+fZlenB)) plate = 1;
893 phid = phi*kRaddeg+180.;
894 sector = Int_t (phid/20.);
907 hits[11]= incidenceAngle;
908 hits[12]= gMC->Edep();
916 AddHit(gAlice->CurrentTrack(),vol, hits);