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 1.21 2001/08/28 08:45:59 vicinanz
19 TTask and TFolder structures implemented
21 Revision 1.9 2001/05/04 10:09:48 vicinanz
22 Major upgrades to the strip structure
24 Revision 1.8 2000/12/04 08:48:20 alibrary
25 Fixing problems in the HEAD
27 Revision 1.7 2000/10/02 21:28:17 fca
28 Removal of useless dependecies via forward declarations
30 Revision 1.6 2000/05/10 16:52:18 vicinanz
31 New TOF version with holes for PHOS/RICH
33 Revision 1.4.2.1 2000/05/10 09:37:16 vicinanz
34 New version with Holes for PHOS/RICH
36 Revision 1.14 1999/11/05 22:39:06 fca
39 Revision 1.13 1999/11/02 11:26:39 fca
40 added stdlib.h for exit
42 Revision 1.12 1999/11/01 20:41:57 fca
43 Added protections against using the wrong version of FRAME
45 Revision 1.11 1999/10/22 08:04:14 fca
46 Correct improper use of negative parameters
48 Revision 1.10 1999/10/16 19:30:06 fca
49 Corrected Rotation Matrix and CVS log
51 Revision 1.9 1999/10/15 15:35:20 fca
52 New version for frame1099 with and without holes
54 Revision 1.8 1999/09/29 09:24:33 fca
55 Introduction of the Copyright and cvs Log
59 ///////////////////////////////////////////////////////////////////////////////
61 // Time Of Flight: design of C.Williams //
63 // This class contains the functions for version 0 of the Time Of Flight //
66 // VERSION WITH 5 MODULES AND TILTED STRIPS
67 // NO HITS DEFINED BY DEFAULT FOR THIS VERSION
68 // FULL COVERAGE VERSION
75 // University of Salerno - Italy
78 // University of Bologna - Italy
83 <img src="picts/AliTOFv0Class.gif">
87 ///////////////////////////////////////////////////////////////////////////////
94 #include "TGeometry.h"
96 #include <TLorentzVector.h>
100 #include "AliConst.h"
105 //_____________________________________________________________________________
109 // Default constructor
113 //_____________________________________________________________________________
114 AliTOFv0::AliTOFv0(const char *name, const char *title)
118 // Standard constructor
121 // Check that FRAME is there otherwise we have no place where to
123 AliModule* frame=gAlice->GetModule("FRAME");
125 Error("Ctor","TOF needs FRAME to be present\n");
128 if(frame->IsVersion()!=1) {
129 Error("Ctor","FRAME version 1 needed with this version of TOF\n");
135 //____________________________________________________________________________
136 AliTOFv0::~AliTOFv0()
160 //_____________________________________________________________________________
161 void AliTOFv0::BuildGeometry()
164 // Build TOF ROOT geometry for the ALICE event display
167 const int kColorTOF = 27;
170 top = gAlice->GetGeometry()->GetNode("alice");
172 // Position the different copies
173 const Float_t krTof =(fRmax+fRmin)/2;
174 const Float_t khTof = fRmax-fRmin;
175 const Int_t kNTof = fNTof;
176 const Float_t kPi = TMath::Pi();
177 const Float_t kangle = 2*kPi/kNTof;
180 // Define TOF basic volume
182 char nodeName0[7], nodeName1[7], nodeName2[7];
183 char nodeName3[7], nodeName4[7], rotMatNum[7];
185 new TBRIK("S_TOF_C","TOF box","void",
186 120*0.5,khTof*0.5,fZlenC*0.5);
187 new TBRIK("S_TOF_B","TOF box","void",
188 120*0.5,khTof*0.5,fZlenB*0.5);
189 new TBRIK("S_TOF_A","TOF box","void",
190 120*0.5,khTof*0.5,fZlenA*0.5);
192 for (Int_t nodeNum=1;nodeNum<19;nodeNum++){
195 sprintf(rotMatNum,"rot50%i",nodeNum);
196 sprintf(nodeName0,"FTO00%i",nodeNum);
197 sprintf(nodeName1,"FTO10%i",nodeNum);
198 sprintf(nodeName2,"FTO20%i",nodeNum);
199 sprintf(nodeName3,"FTO30%i",nodeNum);
200 sprintf(nodeName4,"FTO40%i",nodeNum);
203 sprintf(rotMatNum,"rot5%i",nodeNum);
204 sprintf(nodeName0,"FTO0%i",nodeNum);
205 sprintf(nodeName1,"FTO1%i",nodeNum);
206 sprintf(nodeName2,"FTO2%i",nodeNum);
207 sprintf(nodeName3,"FTO3%i",nodeNum);
208 sprintf(nodeName4,"FTO4%i",nodeNum);
211 new TRotMatrix(rotMatNum,rotMatNum,90,-20*nodeNum,90,90-20*nodeNum,0,0);
212 ang = (4.5-nodeNum) * kangle;
215 node = new TNode(nodeName0,nodeName0,"S_TOF_C",krTof*TMath::Cos(ang),krTof*TMath::Sin(ang),299.15,rotMatNum);
216 node->SetLineColor(kColorTOF);
220 node = new TNode(nodeName1,nodeName1,"S_TOF_C",krTof*TMath::Cos(ang),krTof*TMath::Sin(ang),-299.15,rotMatNum);
221 node->SetLineColor(kColorTOF);
225 node = new TNode(nodeName2,nodeName2,"S_TOF_B",krTof*TMath::Cos(ang),krTof*TMath::Sin(ang),146.45,rotMatNum);
226 node->SetLineColor(kColorTOF);
230 node = new TNode(nodeName3,nodeName3,"S_TOF_B",krTof*TMath::Cos(ang),krTof*TMath::Sin(ang),-146.45,rotMatNum);
231 node->SetLineColor(kColorTOF);
235 node = new TNode(nodeName4,nodeName4,"S_TOF_A",krTof*TMath::Cos(ang),krTof*TMath::Sin(ang),0.,rotMatNum);
236 node->SetLineColor(kColorTOF);
238 } // end loop on nodeNum
243 //_____________________________________________________________________________
244 void AliTOFv0::CreateGeometry()
247 // Create geometry for Time Of Flight version 0
251 <img src="picts/AliTOFv0.gif">
255 // Creates common geometry
257 AliTOF::CreateGeometry();
260 //_____________________________________________________________________________
261 void AliTOFv0::TOFpc(Float_t xtof, Float_t ytof, Float_t zlenC,
262 Float_t zlenB, Float_t zlenA, Float_t ztof0)
265 // Definition of the Time Of Fligh Resistive Plate Chambers
266 // xFLT, yFLT, zFLT - sizes of TOF modules (large)
268 Float_t ycoor, zcoor;
270 Int_t *idtmed = fIdtmed->GetArray()-499;
273 Float_t hTof = fRmax-fRmin;
275 Float_t radius = fRmin+2.;//cm
279 par[2] = zlenC * 0.5;
280 gMC->Gsvolu("FTOC", "BOX ", idtmed[506], par, 3);
281 par[2] = zlenB * 0.5;
282 gMC->Gsvolu("FTOB", "BOX ", idtmed[506], par, 3);
283 par[2] = zlenA * 0.5;
284 gMC->Gsvolu("FTOA", "BOX ", idtmed[506], par, 3);
287 // Positioning of modules
289 Float_t zcor1 = ztof0 - zlenC*0.5;
290 Float_t zcor2 = ztof0 - zlenC - zlenB*0.5;
293 AliMatrix(idrotm[0], 90., 0., 0., 0., 90,-90.);
294 AliMatrix(idrotm[1], 90.,180., 0., 0., 90, 90.);
295 gMC->Gspos("FTOC", 1, "BTO1", 0, zcor1, 0, idrotm[0], "ONLY");
296 gMC->Gspos("FTOC", 2, "BTO1", 0, -zcor1, 0, idrotm[1], "ONLY");
297 gMC->Gspos("FTOC", 1, "BTO2", 0, zcor1, 0, idrotm[0], "ONLY");
298 gMC->Gspos("FTOC", 2, "BTO2", 0, -zcor1, 0, idrotm[1], "ONLY");
299 gMC->Gspos("FTOC", 1, "BTO3", 0, zcor1, 0, idrotm[0], "ONLY");
300 gMC->Gspos("FTOC", 2, "BTO3", 0, -zcor1, 0, idrotm[1], "ONLY");
302 gMC->Gspos("FTOB", 1, "BTO1", 0, zcor2, 0, idrotm[0], "ONLY");
303 gMC->Gspos("FTOB", 2, "BTO1", 0, -zcor2, 0, idrotm[1], "ONLY");
304 gMC->Gspos("FTOB", 1, "BTO2", 0, zcor2, 0, idrotm[0], "ONLY");
305 gMC->Gspos("FTOB", 2, "BTO2", 0, -zcor2, 0, idrotm[1], "ONLY");
306 gMC->Gspos("FTOB", 1, "BTO3", 0, zcor2, 0, idrotm[0], "ONLY");
307 gMC->Gspos("FTOB", 2, "BTO3", 0, -zcor2, 0, idrotm[1], "ONLY");
309 gMC->Gspos("FTOA", 0, "BTO1", 0, zcor3, 0, idrotm[0], "ONLY");
310 gMC->Gspos("FTOA", 0, "BTO2", 0, zcor3, 0, idrotm[0], "ONLY");
311 gMC->Gspos("FTOA", 0, "BTO3", 0, zcor3, 0, idrotm[0], "ONLY");
313 Float_t db = 0.5;//cm
314 Float_t xFLT, xFST, yFLT, zFLTA, zFLTB, zFLTC;
322 xFST = xFLT-fDeadBndX*2;//cm
324 // Sizes of MRPC pads
326 Float_t yPad = 0.505;//cm
328 // Large not sensitive volumes with Insensitive Freon
332 cout <<"************************* TOF geometry **************************"<<endl;
334 par[2] = (zFLTA *0.5);
335 gMC->Gsvolu("FLTA", "BOX ", idtmed[512], par, 3); // Insensitive Freon
336 gMC->Gspos ("FLTA", 0, "FTOA", 0., 0., 0., 0, "ONLY");
338 par[2] = (zFLTB * 0.5);
339 gMC->Gsvolu("FLTB", "BOX ", idtmed[512], par, 3); // Insensitive Freon
340 gMC->Gspos ("FLTB", 0, "FTOB", 0., 0., 0., 0, "ONLY");
342 par[2] = (zFLTC * 0.5);
343 gMC->Gsvolu("FLTC", "BOX ", idtmed[512], par, 3); // Insensitive Freon
344 gMC->Gspos ("FLTC", 0, "FTOC", 0., 0., 0., 0, "ONLY");
346 ////////// Layers of Aluminum before and after detector //////////
347 ////////// Aluminum Box for Modules (2.0 mm thickness) /////////
348 ////////// lateral walls not simulated
351 ycoor = -yFLT/2 + par[1];
352 par[2] = (zFLTA *0.5);
353 gMC->Gsvolu("FALA", "BOX ", idtmed[508], par, 3); // Alluminium
354 gMC->Gspos ("FALA", 1, "FLTA", 0., ycoor, 0., 0, "ONLY");
355 gMC->Gspos ("FALA", 2, "FLTA", 0.,-ycoor, 0., 0, "ONLY");
356 par[2] = (zFLTB *0.5);
357 gMC->Gsvolu("FALB", "BOX ", idtmed[508], par, 3); // Alluminium
358 gMC->Gspos ("FALB", 1, "FLTB", 0., ycoor, 0., 0, "ONLY");
359 gMC->Gspos ("FALB", 2, "FLTB", 0.,-ycoor, 0., 0, "ONLY");
360 par[2] = (zFLTC *0.5);
361 gMC->Gsvolu("FALC", "BOX ", idtmed[508], par, 3); // Alluminium
362 gMC->Gspos ("FALC", 1, "FLTC", 0., ycoor, 0., 0, "ONLY");
363 gMC->Gspos ("FALC", 2, "FLTC", 0.,-ycoor, 0., 0, "ONLY");
365 ///////////////// Detector itself //////////////////////
366 const Float_t kdeadBound = fDeadBndZ; //cm non-sensitive between the pad edge
367 //and the boundary of the strip
368 const Int_t knx = fNpadX; // number of pads along x
369 const Int_t knz = fNpadZ; // number of pads along z
370 const Float_t kspace = fSpace; //cm distance from the front plate of the box
372 Float_t zSenStrip = fZpad*fNpadZ;//cm
373 Float_t stripWidth = zSenStrip + 2*kdeadBound;
376 par[2] = stripWidth*0.5;
378 // new description for strip volume -double stack strip-
379 // -- all constants are expressed in cm
380 // heigth of different layers
381 const Float_t khhony = 1. ; // heigth of HONY Layer
382 const Float_t khpcby = 0.15 ; // heigth of PCB Layer
383 const Float_t khmyly = 0.035 ; // heigth of MYLAR Layer
384 const Float_t khgraphy = 0.02 ; // heigth of GRAPHITE Layer
385 const Float_t khglasseiy = 0.17; // 0.6 Ext. Glass + 1.1 i.e. (Int. Glass/2) (mm)
386 const Float_t khsensmy = 0.11 ; // heigth of Sensitive Freon Mixture
387 const Float_t kwsensmz = 2*3.5 ; // cm
388 const Float_t klsensmx = 48*2.5; // cm
389 const Float_t kwpadz = 3.5; // cm z dimension of the FPAD volume
390 const Float_t klpadx = 2.5; // cm x dimension of the FPAD volume
392 // heigth of the FSTR Volume (the strip volume)
393 const Float_t khstripy = 2*khhony+3*khpcby+4*(khmyly+khgraphy+khglasseiy)+2*khsensmy;
394 // width of the FSTR Volume (the strip volume)
395 const Float_t kwstripz = 10.;
396 // length of the FSTR Volume (the strip volume)
397 const Float_t klstripx = 122.;
399 Float_t parfp[3]={klstripx*0.5,khstripy*0.5,kwstripz*0.5};
400 // coordinates of the strip center in the strip reference frame; used for positioning
401 // internal strip volumes
402 Float_t posfp[3]={0.,0.,0.};
405 // FSTR volume definition and filling this volume with non sensitive Gas Mixture
406 gMC->Gsvolu("FSTR","BOX",idtmed[512],parfp,3);
407 //-- HONY Layer definition
409 parfp[1] = khhony*0.5;
411 gMC->Gsvolu("FHON","BOX",idtmed[503],parfp,3);
412 // positioning 2 HONY Layers on FSTR volume
414 posfp[1]=-khstripy*0.5+parfp[1];
415 gMC->Gspos("FHON",1,"FSTR",0., posfp[1],0.,0,"ONLY");
416 gMC->Gspos("FHON",2,"FSTR",0.,-posfp[1],0.,0,"ONLY");
418 //-- PCB Layer definition
419 parfp[1] = khpcby*0.5;
420 gMC->Gsvolu("FPCB","BOX",idtmed[504],parfp,3);
421 // positioning 2 PCB Layers on FSTR volume
422 posfp[1]=-khstripy*0.5+khhony+parfp[1];
423 gMC->Gspos("FPCB",1,"FSTR",0., posfp[1],0.,0,"ONLY");
424 gMC->Gspos("FPCB",2,"FSTR",0.,-posfp[1],0.,0,"ONLY");
425 // positioning the central PCB layer
426 gMC->Gspos("FPCB",3,"FSTR",0.,0.,0.,0,"ONLY");
430 //-- MYLAR Layer definition
431 parfp[1] = khmyly*0.5;
432 gMC->Gsvolu("FMYL","BOX",idtmed[511],parfp,3);
433 // positioning 2 MYLAR Layers on FSTR volume
434 posfp[1] = -khstripy*0.5+khhony+khpcby+parfp[1];
435 gMC->Gspos("FMYL",1,"FSTR",0., posfp[1],0.,0,"ONLY");
436 gMC->Gspos("FMYL",2,"FSTR",0.,-posfp[1],0.,0,"ONLY");
437 // adding further 2 MYLAR Layers on FSTR volume
438 posfp[1] = khpcby*0.5+parfp[1];
439 gMC->Gspos("FMYL",3,"FSTR",0., posfp[1],0.,0,"ONLY");
440 gMC->Gspos("FMYL",4,"FSTR",0.,-posfp[1],0.,0,"ONLY");
443 //-- Graphite Layer definition
444 parfp[1] = khgraphy*0.5;
445 gMC->Gsvolu("FGRP","BOX",idtmed[502],parfp,3);
446 // positioning 2 Graphite Layers on FSTR volume
447 posfp[1] = -khstripy*0.5+khhony+khpcby+khmyly+parfp[1];
448 gMC->Gspos("FGRP",1,"FSTR",0., posfp[1],0.,0,"ONLY");
449 gMC->Gspos("FGRP",2,"FSTR",0.,-posfp[1],0.,0,"ONLY");
450 // adding further 2 Graphite Layers on FSTR volume
451 posfp[1] = khpcby*0.5+khmyly+parfp[1];
452 gMC->Gspos("FGRP",3,"FSTR",0., posfp[1],0.,0,"ONLY");
453 gMC->Gspos("FGRP",4,"FSTR",0.,-posfp[1],0.,0,"ONLY");
456 //-- Glass (EXT. +Semi INT.) Layer definition
457 parfp[1] = khglasseiy*0.5;
458 gMC->Gsvolu("FGLA","BOX",idtmed[514],parfp,3);
459 // positioning 2 Glass Layers on FSTR volume
460 posfp[1] = -khstripy*0.5+khhony+khpcby+khmyly+khgraphy+parfp[1];
461 gMC->Gspos("FGLA",1,"FSTR",0., posfp[1],0.,0,"ONLY");
462 gMC->Gspos("FGLA",2,"FSTR",0.,-posfp[1],0.,0,"ONLY");
463 // adding further 2 Glass Layers on FSTR volume
464 posfp[1] = khpcby*0.5+khmyly+khgraphy+parfp[1];
465 gMC->Gspos("FGLA",3,"FSTR",0., posfp[1],0.,0,"ONLY");
466 gMC->Gspos("FGLA",4,"FSTR",0.,-posfp[1],0.,0,"ONLY");
469 //-- Sensitive Mixture Layer definition
470 parfp[0] = klsensmx*0.5;
471 parfp[1] = khsensmy*0.5;
472 parfp[2] = kwsensmz*0.5;
473 gMC->Gsvolu("FSEN","BOX",idtmed[513],parfp,3);
474 gMC->Gsvolu("FNSE","BOX",idtmed[512],parfp,3);
475 // positioning 2 gas Layers on FSTR volume
476 // the upper is insensitive freon
477 // while the remaining is sensitive
478 posfp[1] = khpcby*0.5+khmyly+khgraphy+khglasseiy+parfp[1];
479 gMC->Gspos("FNSE",0,"FSTR", 0., posfp[1],0.,0,"ONLY");
480 gMC->Gspos("FSEN",0,"FSTR", 0.,-posfp[1],0.,0,"ONLY");
482 // dividing FSEN along z in knz=2 and along x in knx=48
483 gMC->Gsdvn("FSEZ","FSEN",knz,3);
484 gMC->Gsdvn("FSEX","FSEZ",knx,1);
486 // FPAD volume definition
487 parfp[0] = klpadx*0.5;
488 parfp[1] = khsensmy*0.5;
489 parfp[2] = kwpadz*0.5;
490 gMC->Gsvolu("FPAD","BOX",idtmed[513],parfp,3);
491 // positioning the FPAD volumes on previous divisions
492 gMC->Gspos("FPAD",0,"FSEX",0.,0.,0.,0,"ONLY");
494 //// Positioning the Strips (FSTR) in the FLT volumes /////
498 Float_t t = zFLTC+zFLTB+zFLTA*0.5+ 2*db;//Half Width of Barrel
500 Float_t gap = fGapA; //cm distance between the strip axis
506 ycoor = -14.5 + kspace ; //2 cm over front plate
508 AliMatrix (idrotm[0], 90., 0.,90.,90.,0., 90.);
509 gMC->Gspos("FSTR",j,"FLTA",0.,ycoor, 0.,idrotm[0],"ONLY");
511 printf("%f, St. %2i, Pl.3 ",ang*kRaddeg,i);
512 printf("y = %f, z = %f, zpos = %f \n",ycoor,zcoor,zpos);
516 Int_t upDown = -1; // upDown=-1 -> Upper strip
517 // upDown=+1 -> Lower strip
519 ang = atan(zcoor/radius);
521 AliMatrix (idrotm[nrot], 90., 0.,90.-ang,90.,-ang, 90.);
522 AliMatrix (idrotm[nrot+1],90.,180.,90.+ang,90., ang, 90.);
524 ycoor = -14.5+ kspace; //2 cm over front plate
525 ycoor += (1-(upDown+1)/2)*gap;
526 gMC->Gspos("FSTR",j ,"FLTA",0.,ycoor, zcoor,idrotm[nrot], "ONLY");
527 gMC->Gspos("FSTR",j+1,"FLTA",0.,ycoor,-zcoor,idrotm[nrot+1],"ONLY");
529 printf("%f, St. %2i, Pl.3 ",ang*kRaddeg,i);
530 printf("y = %f, z = %f, zpos = %f \n",ycoor,zcoor,zpos);
533 upDown*= -1; // Alternate strips
534 zcoor = zcoor-(zSenStrip/2)/TMath::Cos(ang)-
535 upDown*gap*TMath::Tan(ang)-
536 (zSenStrip/2)/TMath::Cos(ang);
537 } while (zcoor-(stripWidth/2)*TMath::Cos(ang)>-t+zFLTC+zFLTB+db*2);
539 zcoor = zcoor+(zSenStrip/2)/TMath::Cos(ang)+
540 upDown*gap*TMath::Tan(ang)+
541 (zSenStrip/2)/TMath::Cos(ang);
544 zcoor = zcoor-(zSenStrip/2)/TMath::Cos(ang)-
545 upDown*gap*TMath::Tan(ang)-
546 (zSenStrip/2)/TMath::Cos(ang);
548 ang = atan(zcoor/radius);
550 AliMatrix (idrotm[nrot], 90., 0.,90.-ang,90.,-ang, 90.);
551 AliMatrix (idrotm[nrot+1],90.,180.,90.+ang,90., ang, 90.);
554 ycoor = -14.5+ kspace; //2 cm over front plate
555 ycoor += (1-(upDown+1)/2)*gap;
556 gMC->Gspos("FSTR",j ,"FLTA",0.,ycoor, zcoor,idrotm[nrot], "ONLY");
557 gMC->Gspos("FSTR",j+1,"FLTA",0.,ycoor,-zcoor,idrotm[nrot+1],"ONLY");
558 printf("%f, St. %2i, Pl.3 ",ang*kRaddeg,i);
559 printf("y = %f, z = %f, zpos = %f \n",ycoor,zcoor,zpos);
561 ycoor = -hTof/2.+ kspace;//2 cm over front plate
568 Float_t deadRegion = 1.0;//cm
570 zpos = zcoor - (zSenStrip/2)/TMath::Cos(ang)-
571 upDown*gap*TMath::Tan(ang)-
572 (zSenStrip/2)/TMath::Cos(ang)-
573 deadRegion/TMath::Cos(ang);
575 ang = atan(zpos/radius);
577 AliMatrix (idrotm[nrot], 90., 0., 90.-ang,90.,ang, 270.);
579 ycoor = -hTof*0.5+ kspace ; //2 cm over front plate
580 ycoor += (1-(upDown+1)/2)*gap;
581 zcoor = zpos+(zFLTA*0.5+zFLTB*0.5+db); // Moves to the system of the modulus FLTB
582 gMC->Gspos("FSTR",i, "FLTB", 0., ycoor, zcoor,idrotm[nrot], "ONLY");
584 printf("%f, St. %2i, Pl.4 ",ang*kRaddeg,i);
585 printf("y = %f, z = %f, zpos = %f \n",ycoor,zcoor,zpos);
591 zpos = zpos - (zSenStrip/2)/TMath::Cos(ang)-
592 upDown*gap*TMath::Tan(ang)-
593 (zSenStrip/2)/TMath::Cos(ang);
594 ang = atan(zpos/radius);
596 AliMatrix (idrotm[nrot], 90., 0., 90.-ang,90.,ang, 270.);
598 ycoor = -hTof*0.5+ kspace ; //2 cm over front plate
599 ycoor += (1-(upDown+1)/2)*gap;
600 zcoor = zpos+(zFLTA*0.5+zFLTB*0.5+db); // Moves to the system of the modulus FLTB
601 gMC->Gspos("FSTR",i, "FLTB", 0., ycoor, zcoor,idrotm[nrot], "ONLY");
603 printf("%f, St. %2i, Pl.4 ",ang*kRaddeg,i);
604 printf("y = %f, z = %f, zpos = %f \n",ycoor,zcoor,zpos);
608 } while (TMath::Abs(ang*kRaddeg)<22.5);
609 //till we reach a tilting angle of 22.5 degrees
611 ycoor = -hTof*0.5+ kspace ; //2 cm over front plate
612 zpos = zpos - zSenStrip/TMath::Cos(ang);
615 ang = atan(zpos/radius);
617 AliMatrix (idrotm[nrot], 90., 0., 90.-ang,90.,ang, 270.);
619 zcoor = zpos+(zFLTB/2+zFLTA/2+db);
620 gMC->Gspos("FSTR",i, "FLTB", 0., ycoor, zcoor,idrotm[nrot], "ONLY");
621 zpos = zpos - zSenStrip/TMath::Cos(ang);
622 printf("%f, St. %2i, Pl.4 ",ang*kRaddeg,i);
623 printf("y = %f, z = %f, zpos = %f \n",ycoor,zcoor,zpos);
625 } while (zpos-stripWidth*0.5/TMath::Cos(ang)>-t+zFLTC+db);
629 zpos = zpos + zSenStrip/TMath::Cos(ang);
631 zpos = zpos - (zSenStrip/2)/TMath::Cos(ang)+
633 (zSenStrip/2)/TMath::Cos(ang);
637 ycoor= -hTof*0.5+kspace+gap;
641 ang = atan(zpos/radius);
643 AliMatrix (idrotm[nrot], 90., 0., 90.-ang,90.,ang, 270.);
645 zcoor = zpos+(zFLTC*0.5+zFLTB+zFLTA*0.5+db*2);
646 gMC->Gspos("FSTR",i, "FLTC", 0., ycoor, zcoor,idrotm[nrot], "ONLY");
648 printf("%f, St. %2i, Pl.5 ",ang*kRaddeg,i);
649 printf("y = %f, z = %f, zpos = %f \n",ycoor,zcoor,zpos);
651 zpos = zpos - zSenStrip/TMath::Cos(ang);
652 } while (zpos-stripWidth*TMath::Cos(ang)*0.5>-t);
655 ////////// Layers after strips /////////////////
656 // honeycomb (Polyethilene) Layer after (1.2cm)
658 Float_t overSpace = fOverSpc;//cm
662 par[2] = (zFLTA *0.5);
663 ycoor = -yFLT/2 + overSpace + par[1];
664 gMC->Gsvolu("FPEA", "BOX ", idtmed[503], par, 3); // Hony
665 gMC->Gspos ("FPEA", 0, "FLTA", 0., ycoor, 0., 0, "ONLY");
666 par[2] = (zFLTB *0.5);
667 gMC->Gsvolu("FPEB", "BOX ", idtmed[503], par, 3); // Hony
668 gMC->Gspos ("FPEB", 0, "FLTB", 0., ycoor, 0., 0, "ONLY");
669 par[2] = (zFLTC *0.5);
670 gMC->Gsvolu("FPEC", "BOX ", idtmed[503], par, 3); // Hony
671 gMC->Gspos ("FPEC", 0, "FLTC", 0., ycoor, 0., 0, "ONLY");
673 // Electronics (Cu) after
676 par[1] = 1.43*0.05*0.5; // 5% of X0
677 par[2] = (zFLTA *0.5);
679 gMC->Gsvolu("FECA", "BOX ", idtmed[501], par, 3); // Cu
680 gMC->Gspos ("FECA", 0, "FLTA", 0., ycoor, 0., 0, "ONLY");
681 par[2] = (zFLTB *0.5);
682 gMC->Gsvolu("FECB", "BOX ", idtmed[501], par, 3); // Cu
683 gMC->Gspos ("FECB", 0, "FLTB", 0., ycoor, 0., 0, "ONLY");
684 par[2] = (zFLTC *0.5);
685 gMC->Gsvolu("FECC", "BOX ", idtmed[501], par, 3); // Cu
686 gMC->Gspos ("FECC", 0, "FLTC", 0., ycoor, 0., 0, "ONLY");
688 // cooling WAter after
691 par[1] = 36.1*0.02*0.5; // 2% of X0
692 par[2] = (zFLTA *0.5);
694 gMC->Gsvolu("FWAA", "BOX ", idtmed[515], par, 3); // Water
695 gMC->Gspos ("FWAA", 0, "FLTA", 0., ycoor, 0., 0, "ONLY");
696 par[2] = (zFLTB *0.5);
697 gMC->Gsvolu("FWAB", "BOX ", idtmed[515], par, 3); // Water
698 gMC->Gspos ("FWAB", 0, "FLTB", 0., ycoor, 0., 0, "ONLY");
699 par[2] = (zFLTC *0.5);
700 gMC->Gsvolu("FWAC", "BOX ", idtmed[515], par, 3); // Water
701 gMC->Gspos ("FWAC", 0, "FLTC", 0., ycoor, 0., 0, "ONLY");
706 par[1] = (yFLT/2-ycoor-0.2)*0.5; // Aluminum layer considered (0.2 cm)
707 par[2] = (zFLTA *0.5);
709 gMC->Gsvolu("FAIA", "BOX ", idtmed[500], par, 3); // Air
710 gMC->Gspos ("FAIA", 0, "FLTA", 0., ycoor, 0., 0, "ONLY");
711 par[2] = (zFLTB *0.5);
712 gMC->Gsvolu("FAIB", "BOX ", idtmed[500], par, 3); // Air
713 gMC->Gspos ("FAIB", 0, "FLTB", 0., ycoor, 0., 0, "ONLY");
714 par[2] = (zFLTC *0.5);
715 gMC->Gsvolu("FAIC", "BOX ", idtmed[500], par, 3); // Air
716 gMC->Gspos ("FAIC", 0, "FLTC", 0., ycoor, 0., 0, "ONLY");
718 //Back Plate honycomb (2cm)
722 ycoor = yFLT/2 - par[1];
723 gMC->Gsvolu("FBPA", "BOX ", idtmed[503], par, 3); // Hony
724 gMC->Gspos ("FBPA", 0, "FLTA", 0., ycoor, 0., 0, "ONLY");
725 gMC->Gsvolu("FBPB", "BOX ", idtmed[503], par, 3); // Hony
726 gMC->Gspos ("FBPB", 0, "FLTB", 0., ycoor, 0., 0, "ONLY");
727 gMC->Gsvolu("FBPC", "BOX ", idtmed[503], par, 3); // Hony
728 gMC->Gspos ("FBPC", 0, "FLTC", 0., ycoor, 0., 0, "ONLY");
732 //_____________________________________________________________________________
733 void AliTOFv0::DrawModule() const
736 // Draw a shaded view of the Time Of Flight version 1
738 // Set everything unseen
739 gMC->Gsatt("*", "seen", -1);
741 // Set ALIC mother transparent
742 gMC->Gsatt("ALIC","SEEN",0);
744 // Set the volumes visible
745 gMC->Gsatt("ALIC","SEEN",0);
747 gMC->Gsatt("FTOA","SEEN",1);
748 gMC->Gsatt("FTOB","SEEN",1);
749 gMC->Gsatt("FTOC","SEEN",1);
750 gMC->Gsatt("FLTA","SEEN",1);
751 gMC->Gsatt("FLTB","SEEN",1);
752 gMC->Gsatt("FLTC","SEEN",1);
753 gMC->Gsatt("FPLA","SEEN",1);
754 gMC->Gsatt("FPLB","SEEN",1);
755 gMC->Gsatt("FPLC","SEEN",1);
756 gMC->Gsatt("FSTR","SEEN",1);
757 gMC->Gsatt("FPEA","SEEN",1);
758 gMC->Gsatt("FPEB","SEEN",1);
759 gMC->Gsatt("FPEC","SEEN",1);
761 gMC->Gsatt("FLZ1","SEEN",0);
762 gMC->Gsatt("FLZ2","SEEN",0);
763 gMC->Gsatt("FLZ3","SEEN",0);
764 gMC->Gsatt("FLX1","SEEN",0);
765 gMC->Gsatt("FLX2","SEEN",0);
766 gMC->Gsatt("FLX3","SEEN",0);
767 gMC->Gsatt("FPAD","SEEN",0);
769 gMC->Gdopt("hide", "on");
770 gMC->Gdopt("shad", "on");
771 gMC->Gsatt("*", "fill", 7);
772 gMC->SetClipBox(".");
773 gMC->SetClipBox("*", 0, 1000, -1000, 1000, -1000, 1000);
775 gMC->Gdraw("alic", 40, 30, 0, 12, 9.5, .02, .02);
776 gMC->Gdhead(1111, "Time Of Flight");
777 gMC->Gdman(18, 4, "MAN");
778 gMC->Gdopt("hide","off");
781 //_____________________________________________________________________________
782 void AliTOFv0::CreateMaterials()
785 // Define materials for the Time Of Flight
787 AliTOF::CreateMaterials();
790 //_____________________________________________________________________________
791 void AliTOFv0::Init()
794 // Initialise the detector after the geometry has been defined
796 printf("**************************************"
798 "**************************************\n");
799 printf("\n Version 0 of TOF initialing, "
800 "symmetric TOF - Full Coverage version\n");
804 fIdFTOA = gMC->VolId("FTOA");
805 fIdFTOB = gMC->VolId("FTOB");
806 fIdFTOC = gMC->VolId("FTOC");
807 fIdFLTA = gMC->VolId("FLTA");
808 fIdFLTB = gMC->VolId("FLTB");
809 fIdFLTC = gMC->VolId("FLTC");
812 printf("%s: **************************************"
814 "**************************************\n",ClassName());
818 //_____________________________________________________________________________
819 void AliTOFv0::StepManager()
822 // Procedure called at each step in the Time Of Flight
824 TLorentzVector mom, pos;
825 Float_t xm[3],pm[3],xpad[3],ppad[3];
826 Float_t hits[13],phi,phid,z;
828 Int_t sector, plate, padx, padz, strip;
829 Int_t copy, padzid, padxid, stripid, i;
830 Int_t *idtmed = fIdtmed->GetArray()-499;
831 Float_t incidenceAngle;
833 if(gMC->GetMedium()==idtmed[513] &&
834 gMC->IsTrackEntering() && gMC->TrackCharge()
835 && gMC->CurrentVolID(copy)==fIdSens)
837 // getting information about hit volumes
839 padzid=gMC->CurrentVolOffID(2,copy);
842 padxid=gMC->CurrentVolOffID(1,copy);
845 stripid=gMC->CurrentVolOffID(4,copy);
848 gMC->TrackPosition(pos);
849 gMC->TrackMomentum(mom);
851 // Double_t NormPos=1./pos.Rho();
852 Double_t normMom=1./mom.Rho();
854 // getting the cohordinates in pad ref system
855 xm[0] = (Float_t)pos.X();
856 xm[1] = (Float_t)pos.Y();
857 xm[2] = (Float_t)pos.Z();
859 pm[0] = (Float_t)mom.X()*normMom;
860 pm[1] = (Float_t)mom.Y()*normMom;
861 pm[2] = (Float_t)mom.Z()*normMom;
863 gMC->Gmtod(xm,xpad,1);
864 gMC->Gmtod(pm,ppad,2);
866 incidenceAngle = TMath::ACos(ppad[1])*kRaddeg;
871 if (TMath::Abs(z) <= fZlenA*0.5) plate = 3;
872 if (z < (fZlenA*0.5+fZlenB) &&
873 z > fZlenA*0.5) plate = 4;
874 if (z >-(fZlenA*0.5+fZlenB) &&
875 z < -fZlenA*0.5) plate = 2;
876 if (z > (fZlenA*0.5+fZlenB)) plate = 5;
877 if (z <-(fZlenA*0.5+fZlenB)) plate = 1;
880 phid = phi*kRaddeg+180.;
881 sector = Int_t (phid/20.);
894 hits[11]= incidenceAngle;
895 hits[12]= gMC->Edep();
903 AddHit(gAlice->CurrentTrack(),vol, hits);