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 1.20 2001/05/16 14:57:24 alibrary
22 New files for folders and Stack
24 Revision 1.19 2001/05/04 10:09:48 vicinanz
25 Major upgrades to the strip structure
27 Revision 1.18 2000/12/04 08:48:20 alibrary
28 Fixing problems in the HEAD
30 Revision 1.17 2000/10/02 21:28:17 fca
31 Removal of useless dependecies via forward declarations
33 Revision 1.16 2000/05/10 16:52:18 vicinanz
34 New TOF version with holes for PHOS/RICH
36 Revision 1.14.2.1 2000/05/10 09:37:16 vicinanz
37 New version with Holes for PHOS/RICH
39 Revision 1.14 1999/11/05 22:39:06 fca
42 Revision 1.13 1999/11/02 11:26:39 fca
43 added stdlib.h for exit
45 Revision 1.12 1999/11/01 20:41:57 fca
46 Added protections against using the wrong version of FRAME
48 Revision 1.11 1999/10/22 08:04:14 fca
49 Correct improper use of negative parameters
51 Revision 1.10 1999/10/16 19:30:06 fca
52 Corrected Rotation Matrix and CVS log
54 Revision 1.9 1999/10/15 15:35:20 fca
55 New version for frame1099 with and without holes
57 Revision 1.8 1999/09/29 09:24:33 fca
58 Introduction of the Copyright and cvs Log
62 ///////////////////////////////////////////////////////////////////////////////
64 // Time Of Flight: design of C.Williams //
66 // This class contains the functions for version 3 of the Time Of Flight //
69 // VERSION WITH 5 MODULES AND TILTED STRIPS
70 // HITS DEFINED FOR THIS VERSION
71 // HOLES FOR RICH DETECTOR
78 // University of Salerno - Italy
81 // University of Bologna - Italy
86 <img src="picts/AliTOFv3Class.gif">
90 ///////////////////////////////////////////////////////////////////////////////
97 #include "TGeometry.h"
99 #include <TLorentzVector.h>
103 #include "AliConst.h"
108 //_____________________________________________________________________________
112 // Default constructor
116 //_____________________________________________________________________________
117 AliTOFv3::AliTOFv3(const char *name, const char *title)
121 // Standard constructor
124 // Check that FRAME is there otherwise we have no place where to
126 AliModule* frame=gAlice->GetModule("FRAME");
128 Error("Ctor","TOF needs FRAME to be present\n");
131 if(frame->IsVersion()!=1) {
132 Error("Ctor","FRAME version 1 needed with this version of TOF\n");
138 //____________________________________________________________________________
139 AliTOFv3::~AliTOFv3()
163 //_____________________________________________________________________________
164 void AliTOFv3::BuildGeometry()
167 // Build TOF ROOT geometry for the ALICE event display
170 const int kColorTOF = 27;
173 top = gAlice->GetGeometry()->GetNode("alice");
175 // Position the different copies
176 const Float_t krTof =(fRmax+fRmin)/2;
177 const Float_t khTof = fRmax-fRmin;
178 const Int_t kNTof = fNTof;
179 const Float_t kPi = TMath::Pi();
180 const Float_t kangle = 2*kPi/kNTof;
183 // Define TOF basic volume
185 char nodeName0[7], nodeName1[7], nodeName2[7];
186 char nodeName3[7], nodeName4[7], rotMatNum[7];
188 new TBRIK("S_TOF_C","TOF box","void",
189 120*0.5,khTof*0.5,fZlenC*0.5);
190 new TBRIK("S_TOF_B","TOF box","void",
191 120*0.5,khTof*0.5,fZlenB*0.5);
192 new TBRIK("S_TOF_A","TOF box","void",
193 120*0.5,khTof*0.5,fZlenA*0.5);
195 for (Int_t nodeNum=1;nodeNum<19;nodeNum++){
198 sprintf(rotMatNum,"rot50%i",nodeNum);
199 sprintf(nodeName0,"FTO00%i",nodeNum);
200 sprintf(nodeName1,"FTO10%i",nodeNum);
201 sprintf(nodeName2,"FTO20%i",nodeNum);
202 sprintf(nodeName3,"FTO30%i",nodeNum);
203 sprintf(nodeName4,"FTO40%i",nodeNum);
206 sprintf(rotMatNum,"rot5%i",nodeNum);
207 sprintf(nodeName0,"FTO0%i",nodeNum);
208 sprintf(nodeName1,"FTO1%i",nodeNum);
209 sprintf(nodeName2,"FTO2%i",nodeNum);
210 sprintf(nodeName3,"FTO3%i",nodeNum);
211 sprintf(nodeName4,"FTO4%i",nodeNum);
214 new TRotMatrix(rotMatNum,rotMatNum,90,-20*nodeNum,90,90-20*nodeNum,0,0);
215 ang = (4.5-nodeNum) * kangle;
218 node = new TNode(nodeName0,nodeName0,"S_TOF_C",krTof*TMath::Cos(ang),krTof*TMath::Sin(ang),299.15,rotMatNum);
219 node->SetLineColor(kColorTOF);
223 node = new TNode(nodeName1,nodeName1,"S_TOF_C",krTof*TMath::Cos(ang),krTof*TMath::Sin(ang),-299.15,rotMatNum);
224 node->SetLineColor(kColorTOF);
226 if (nodeNum !=1 && nodeNum!=2 && nodeNum !=18)
229 node = new TNode(nodeName2,nodeName2,"S_TOF_B",krTof*TMath::Cos(ang),krTof*TMath::Sin(ang),146.45,rotMatNum);
230 node->SetLineColor(kColorTOF);
234 node = new TNode(nodeName3,nodeName3,"S_TOF_B",krTof*TMath::Cos(ang),krTof*TMath::Sin(ang),-146.45,rotMatNum);
235 node->SetLineColor(kColorTOF);
237 } // Holes for RICH detector
239 if (nodeNum !=1 && nodeNum !=2 && nodeNum !=18)
242 node = new TNode(nodeName4,nodeName4,"S_TOF_A",krTof*TMath::Cos(ang),krTof*TMath::Sin(ang),0.,rotMatNum);
243 node->SetLineColor(kColorTOF);
245 } // Holes for RICH detector, central part
251 //_____________________________________________________________________________
252 void AliTOFv3::CreateGeometry()
255 // Create geometry for Time Of Flight version 0
259 <img src="picts/AliTOFv3.gif">
263 // Creates common geometry
265 AliTOF::CreateGeometry();
268 //_____________________________________________________________________________
269 void AliTOFv3::TOFpc(Float_t xtof, Float_t ytof, Float_t zlenC,
270 Float_t zlenB, Float_t zlenA, Float_t ztof0)
273 // Definition of the Time Of Fligh Resistive Plate Chambers
274 // xFLT, yFLT, zFLT - sizes of TOF modules (large)
276 Float_t ycoor, zcoor;
278 Int_t *idtmed = fIdtmed->GetArray()-499;
281 Float_t hTof = fRmax-fRmin;
283 Float_t radius = fRmin+2.;//cm
287 par[2] = zlenC * 0.5;
288 gMC->Gsvolu("FTOC", "BOX ", idtmed[506], par, 3);
289 par[2] = zlenB * 0.5;
290 gMC->Gsvolu("FTOB", "BOX ", idtmed[506], par, 3);
291 par[2] = zlenA * 0.5;
292 gMC->Gsvolu("FTOA", "BOX ", idtmed[506], par, 3);
295 // Positioning of modules
297 Float_t zcor1 = ztof0 - zlenC*0.5;
298 Float_t zcor2 = ztof0 - zlenC - zlenB*0.5;
301 AliMatrix(idrotm[0], 90., 0., 0., 0., 90,-90.);
302 AliMatrix(idrotm[1], 90.,180., 0., 0., 90, 90.);
303 gMC->Gspos("FTOC", 1, "BTO1", 0, zcor1, 0, idrotm[0], "ONLY");
304 gMC->Gspos("FTOC", 2, "BTO1", 0, -zcor1, 0, idrotm[1], "ONLY");
305 gMC->Gspos("FTOC", 1, "BTO2", 0, zcor1, 0, idrotm[0], "ONLY");
306 gMC->Gspos("FTOC", 2, "BTO2", 0, -zcor1, 0, idrotm[1], "ONLY");
307 gMC->Gspos("FTOC", 1, "BTO3", 0, zcor1, 0, idrotm[0], "ONLY");
308 gMC->Gspos("FTOC", 2, "BTO3", 0, -zcor1, 0, idrotm[1], "ONLY");
310 gMC->Gspos("FTOB", 1, "BTO1", 0, zcor2, 0, idrotm[0], "ONLY");
311 gMC->Gspos("FTOB", 2, "BTO1", 0, -zcor2, 0, idrotm[1], "ONLY");
312 gMC->Gspos("FTOB", 1, "BTO2", 0, zcor2, 0, idrotm[0], "ONLY");
313 gMC->Gspos("FTOB", 2, "BTO2", 0, -zcor2, 0, idrotm[1], "ONLY");
315 gMC->Gspos("FTOA", 0, "BTO1", 0, zcor3, 0, idrotm[0], "ONLY");
316 gMC->Gspos("FTOA", 0, "BTO2", 0, zcor3, 0, idrotm[0], "ONLY");
318 Float_t db = 0.5;//cm
319 Float_t xFLT, xFST, yFLT, zFLTA, zFLTB, zFLTC;
327 xFST = xFLT-fDeadBndX*2;//cm
329 // Sizes of MRPC pads
331 Float_t yPad = 0.505;//cm
333 // Large not sensitive volumes with Insensitive Freon
337 if (fDebug) cout << ClassName() <<
338 cout <<": ************************* TOF geometry **************************"<<endl;
340 par[2] = (zFLTA *0.5);
341 gMC->Gsvolu("FLTA", "BOX ", idtmed[512], par, 3); // Insensitive Freon
342 gMC->Gspos ("FLTA", 0, "FTOA", 0., 0., 0., 0, "ONLY");
344 par[2] = (zFLTB * 0.5);
345 gMC->Gsvolu("FLTB", "BOX ", idtmed[512], par, 3); // Insensitive Freon
346 gMC->Gspos ("FLTB", 0, "FTOB", 0., 0., 0., 0, "ONLY");
348 par[2] = (zFLTC * 0.5);
349 gMC->Gsvolu("FLTC", "BOX ", idtmed[512], par, 3); // Insensitive Freon
350 gMC->Gspos ("FLTC", 0, "FTOC", 0., 0., 0., 0, "ONLY");
352 ////////// Layers of Aluminum before and after detector //////////
353 ////////// Aluminum Box for Modules (2.0 mm thickness) /////////
354 ////////// lateral walls not simulated
357 ycoor = -yFLT/2 + par[1];
358 par[2] = (zFLTA *0.5);
359 gMC->Gsvolu("FALA", "BOX ", idtmed[508], par, 3); // Alluminium
360 gMC->Gspos ("FALA", 1, "FLTA", 0., ycoor, 0., 0, "ONLY");
361 gMC->Gspos ("FALA", 2, "FLTA", 0.,-ycoor, 0., 0, "ONLY");
362 par[2] = (zFLTB *0.5);
363 gMC->Gsvolu("FALB", "BOX ", idtmed[508], par, 3); // Alluminium
364 gMC->Gspos ("FALB", 1, "FLTB", 0., ycoor, 0., 0, "ONLY");
365 gMC->Gspos ("FALB", 2, "FLTB", 0.,-ycoor, 0., 0, "ONLY");
366 par[2] = (zFLTC *0.5);
367 gMC->Gsvolu("FALC", "BOX ", idtmed[508], par, 3); // Alluminium
368 gMC->Gspos ("FALC", 1, "FLTC", 0., ycoor, 0., 0, "ONLY");
369 gMC->Gspos ("FALC", 2, "FLTC", 0.,-ycoor, 0., 0, "ONLY");
371 ///////////////// Detector itself //////////////////////
373 const Float_t kdeadBound = fDeadBndZ; //cm non-sensitive between the pad edge
374 //and the boundary of the strip
375 const Int_t knx = fNpadX; // number of pads along x
376 const Int_t knz = fNpadZ; // number of pads along z
377 const Float_t kspace = fSpace; //cm distance from the front plate of the box
379 Float_t zSenStrip = fZpad*fNpadZ;//cm
380 Float_t stripWidth = zSenStrip + 2*kdeadBound;
384 par[2] = stripWidth*0.5;
386 // new description for strip volume -double stack strip-
387 // -- all constants are expressed in cm
388 // heigth of different layers
389 const Float_t khhony = 1. ; // heigth of HONY Layer
390 const Float_t khpcby = 0.15 ; // heigth of PCB Layer
391 const Float_t khmyly = 0.035 ; // heigth of MYLAR Layer
392 const Float_t khgraphy = 0.02 ; // heigth of GRAPHITE Layer
393 const Float_t khglasseiy = 0.17; // 0.6 Ext. Glass + 1.1 i.e. (Int. Glass/2) (mm)
394 const Float_t khsensmy = 0.11 ; // heigth of Sensitive Freon Mixture
395 const Float_t kwsensmz = 2*3.5 ; // cm
396 const Float_t klsensmx = 48*2.5; // cm
397 const Float_t kwpadz = 3.5; // cm z dimension of the FPAD volume
398 const Float_t klpadx = 2.5; // cm x dimension of the FPAD volume
400 // heigth of the FSTR Volume (the strip volume)
401 const Float_t khstripy = 2*khhony+3*khpcby+4*(khmyly+khgraphy+khglasseiy)+2*khsensmy;
402 // width of the FSTR Volume (the strip volume)
403 const Float_t kwstripz = 10.;
404 // length of the FSTR Volume (the strip volume)
405 const Float_t klstripx = 122.;
407 Float_t parfp[3]={klstripx*0.5,khstripy*0.5,kwstripz*0.5};
408 // coordinates of the strip center in the strip reference frame; used for positioning
409 // internal strip volumes
410 Float_t posfp[3]={0.,0.,0.};
413 // FSTR volume definition and filling this volume with non sensitive Gas Mixture
414 gMC->Gsvolu("FSTR","BOX",idtmed[512],parfp,3);
415 //-- HONY Layer definition
417 parfp[1] = khhony*0.5;
419 gMC->Gsvolu("FHON","BOX",idtmed[503],parfp,3);
420 // positioning 2 HONY Layers on FSTR volume
422 posfp[1]=-khstripy*0.5+parfp[1];
423 gMC->Gspos("FHON",1,"FSTR",0., posfp[1],0.,0,"ONLY");
424 gMC->Gspos("FHON",2,"FSTR",0.,-posfp[1],0.,0,"ONLY");
426 //-- PCB Layer definition
427 parfp[1] = khpcby*0.5;
428 gMC->Gsvolu("FPCB","BOX",idtmed[504],parfp,3);
429 // positioning 2 PCB Layers on FSTR volume
430 posfp[1]=-khstripy*0.5+khhony+parfp[1];
431 gMC->Gspos("FPCB",1,"FSTR",0., posfp[1],0.,0,"ONLY");
432 gMC->Gspos("FPCB",2,"FSTR",0.,-posfp[1],0.,0,"ONLY");
433 // positioning the central PCB layer
434 gMC->Gspos("FPCB",3,"FSTR",0.,0.,0.,0,"ONLY");
438 //-- MYLAR Layer definition
439 parfp[1] = khmyly*0.5;
440 gMC->Gsvolu("FMYL","BOX",idtmed[511],parfp,3);
441 // positioning 2 MYLAR Layers on FSTR volume
442 posfp[1] = -khstripy*0.5+khhony+khpcby+parfp[1];
443 gMC->Gspos("FMYL",1,"FSTR",0., posfp[1],0.,0,"ONLY");
444 gMC->Gspos("FMYL",2,"FSTR",0.,-posfp[1],0.,0,"ONLY");
445 // adding further 2 MYLAR Layers on FSTR volume
446 posfp[1] = khpcby*0.5+parfp[1];
447 gMC->Gspos("FMYL",3,"FSTR",0., posfp[1],0.,0,"ONLY");
448 gMC->Gspos("FMYL",4,"FSTR",0.,-posfp[1],0.,0,"ONLY");
451 //-- Graphite Layer definition
452 parfp[1] = khgraphy*0.5;
453 gMC->Gsvolu("FGRP","BOX",idtmed[502],parfp,3);
454 // positioning 2 Graphite Layers on FSTR volume
455 posfp[1] = -khstripy*0.5+khhony+khpcby+khmyly+parfp[1];
456 gMC->Gspos("FGRP",1,"FSTR",0., posfp[1],0.,0,"ONLY");
457 gMC->Gspos("FGRP",2,"FSTR",0.,-posfp[1],0.,0,"ONLY");
458 // adding further 2 Graphite Layers on FSTR volume
459 posfp[1] = khpcby*0.5+khmyly+parfp[1];
460 gMC->Gspos("FGRP",3,"FSTR",0., posfp[1],0.,0,"ONLY");
461 gMC->Gspos("FGRP",4,"FSTR",0.,-posfp[1],0.,0,"ONLY");
464 //-- Glass (EXT. +Semi INT.) Layer definition
465 parfp[1] = khglasseiy*0.5;
466 gMC->Gsvolu("FGLA","BOX",idtmed[514],parfp,3);
467 // positioning 2 Glass Layers on FSTR volume
468 posfp[1] = -khstripy*0.5+khhony+khpcby+khmyly+khgraphy+parfp[1];
469 gMC->Gspos("FGLA",1,"FSTR",0., posfp[1],0.,0,"ONLY");
470 gMC->Gspos("FGLA",2,"FSTR",0.,-posfp[1],0.,0,"ONLY");
471 // adding further 2 Glass Layers on FSTR volume
472 posfp[1] = khpcby*0.5+khmyly+khgraphy+parfp[1];
473 gMC->Gspos("FGLA",3,"FSTR",0., posfp[1],0.,0,"ONLY");
474 gMC->Gspos("FGLA",4,"FSTR",0.,-posfp[1],0.,0,"ONLY");
477 //-- Sensitive Mixture Layer definition
478 parfp[0] = klsensmx*0.5;
479 parfp[1] = khsensmy*0.5;
480 parfp[2] = kwsensmz*0.5;
481 gMC->Gsvolu("FSEN","BOX",idtmed[513],parfp,3);
482 gMC->Gsvolu("FNSE","BOX",idtmed[512],parfp,3);
483 // positioning 2 gas Layers on FSTR volume
484 // the upper is insensitive freon
485 // while the remaining is sensitive
486 posfp[1] = khpcby*0.5+khmyly+khgraphy+khglasseiy+parfp[1];
487 gMC->Gspos("FNSE",0,"FSTR", 0., posfp[1],0.,0,"ONLY");
488 gMC->Gspos("FSEN",0,"FSTR", 0.,-posfp[1],0.,0,"ONLY");
490 // dividing FSEN along z in knz=2 and along x in knx=48
491 gMC->Gsdvn("FSEZ","FSEN",knz,3);
492 gMC->Gsdvn("FSEX","FSEZ",knx,1);
494 // FPAD volume definition
495 parfp[0] = klpadx*0.5;
496 parfp[1] = khsensmy*0.5;
497 parfp[2] = kwpadz*0.5;
498 gMC->Gsvolu("FPAD","BOX",idtmed[513],parfp,3);
499 // positioning the FPAD volumes on previous divisions
500 gMC->Gspos("FPAD",0,"FSEX",0.,0.,0.,0,"ONLY");
502 //// Positioning the Strips (FSTR) in the FLT volumes /////
506 Float_t t = zFLTC+zFLTB+zFLTA*0.5+ 2*db;//Half Width of Barrel
508 Float_t gap = fGapA; //cm distance between the strip axis
514 ycoor = -14.5 + kspace ; //2 cm over front plate
516 AliMatrix (idrotm[0], 90., 0.,90.,90.,0., 90.);
517 gMC->Gspos("FSTR",j,"FLTA",0.,ycoor, 0.,idrotm[0],"ONLY");
519 printf("%s: %f, St. %2i, Pl.3 ",ClassName(),ang*kRaddeg,i);
520 printf("y = %f, z = %f, zpos = %f \n",ycoor,zcoor,zpos);
524 Int_t upDown = -1; // upDown=-1 -> Upper strip
525 // upDown=+1 -> Lower strip
527 ang = atan(zcoor/radius);
529 AliMatrix (idrotm[nrot], 90., 0.,90.-ang,90.,-ang, 90.);
530 AliMatrix (idrotm[nrot+1],90.,180.,90.+ang,90., ang, 90.);
532 ycoor = -14.5+ kspace; //2 cm over front plate
533 ycoor += (1-(upDown+1)/2)*gap;
534 gMC->Gspos("FSTR",j ,"FLTA",0.,ycoor, zcoor,idrotm[nrot], "ONLY");
535 gMC->Gspos("FSTR",j+1,"FLTA",0.,ycoor,-zcoor,idrotm[nrot+1],"ONLY");
537 printf("%s: %f, St. %2i, Pl.3 ",ClassName(),ang*kRaddeg,i);
538 printf("y = %f, z = %f, zpos = %f \n",ycoor,zcoor,zpos);
541 upDown*= -1; // Alternate strips
542 zcoor = zcoor-(zSenStrip/2)/TMath::Cos(ang)-
543 upDown*gap*TMath::Tan(ang)-
544 (zSenStrip/2)/TMath::Cos(ang);
545 } while (zcoor-(stripWidth/2)*TMath::Cos(ang)>-t+zFLTC+zFLTB+db*2);
547 zcoor = zcoor+(zSenStrip/2)/TMath::Cos(ang)+
548 upDown*gap*TMath::Tan(ang)+
549 (zSenStrip/2)/TMath::Cos(ang);
552 zcoor = zcoor-(zSenStrip/2)/TMath::Cos(ang)-
553 upDown*gap*TMath::Tan(ang)-
554 (zSenStrip/2)/TMath::Cos(ang);
556 ang = atan(zcoor/radius);
558 AliMatrix (idrotm[nrot], 90., 0.,90.-ang,90.,-ang, 90.);
559 AliMatrix (idrotm[nrot+1],90.,180.,90.+ang,90., ang, 90.);
562 ycoor = -14.5+ kspace; //2 cm over front plate
563 ycoor += (1-(upDown+1)/2)*gap;
564 gMC->Gspos("FSTR",j ,"FLTA",0.,ycoor, zcoor,idrotm[nrot], "ONLY");
565 gMC->Gspos("FSTR",j+1,"FLTA",0.,ycoor,-zcoor,idrotm[nrot+1],"ONLY");
567 printf("%s: %f, St. %2i, Pl.3 ",ClassName(),ang*kRaddeg,i);
568 printf("y = %f, z = %f, zpos = %f \n",ycoor,zcoor,zpos);
570 ycoor = -hTof/2.+ kspace;//2 cm over front plate
577 Float_t deadRegion = 1.0;//cm
579 zpos = zcoor - (zSenStrip/2)/TMath::Cos(ang)-
580 upDown*gap*TMath::Tan(ang)-
581 (zSenStrip/2)/TMath::Cos(ang)-
582 deadRegion/TMath::Cos(ang);
584 ang = atan(zpos/radius);
586 AliMatrix (idrotm[nrot], 90., 0., 90.-ang,90.,ang, 270.);
588 ycoor = -hTof*0.5+ kspace ; //2 cm over front plate
589 ycoor += (1-(upDown+1)/2)*gap;
590 zcoor = zpos+(zFLTA*0.5+zFLTB*0.5+db); // Moves to the system of the modulus FLTB
591 gMC->Gspos("FSTR",i, "FLTB", 0., ycoor, zcoor,idrotm[nrot], "ONLY");
593 printf("%s: %f, St. %2i, Pl.4 ",ClassName(),ang*kRaddeg,i);
594 printf("y = %f, z = %f, zpos = %f \n",ycoor,zcoor,zpos);
600 zpos = zpos - (zSenStrip/2)/TMath::Cos(ang)-
601 upDown*gap*TMath::Tan(ang)-
602 (zSenStrip/2)/TMath::Cos(ang);
603 ang = atan(zpos/radius);
605 AliMatrix (idrotm[nrot], 90., 0., 90.-ang,90.,ang, 270.);
607 ycoor = -hTof*0.5+ kspace ; //2 cm over front plate
608 ycoor += (1-(upDown+1)/2)*gap;
609 zcoor = zpos+(zFLTA*0.5+zFLTB*0.5+db); // Moves to the system of the modulus FLTB
610 gMC->Gspos("FSTR",i, "FLTB", 0., ycoor, zcoor,idrotm[nrot], "ONLY");
612 printf("%s: %f, St. %2i, Pl.4 ",ClassName(),ang*kRaddeg,i);
613 printf("y = %f, z = %f, zpos = %f \n",ycoor,zcoor,zpos);
617 } while (TMath::Abs(ang*kRaddeg)<22.5);
618 //till we reach a tilting angle of 22.5 degrees
620 ycoor = -hTof*0.5+ kspace ; //2 cm over front plate
621 zpos = zpos - zSenStrip/TMath::Cos(ang);
624 ang = atan(zpos/radius);
626 AliMatrix (idrotm[nrot], 90., 0., 90.-ang,90.,ang, 270.);
628 zcoor = zpos+(zFLTB/2+zFLTA/2+db);
629 gMC->Gspos("FSTR",i, "FLTB", 0., ycoor, zcoor,idrotm[nrot], "ONLY");
630 zpos = zpos - zSenStrip/TMath::Cos(ang);
632 printf("%s: %f, St. %2i, Pl.4 ",ClassName(),ang*kRaddeg,i);
633 printf("y = %f, z = %f, zpos = %f \n",ycoor,zcoor,zpos);
637 } while (zpos-stripWidth*0.5/TMath::Cos(ang)>-t+zFLTC+db);
641 zpos = zpos + zSenStrip/TMath::Cos(ang);
643 zpos = zpos - (zSenStrip/2)/TMath::Cos(ang)+
645 (zSenStrip/2)/TMath::Cos(ang);
649 ycoor= -hTof*0.5+kspace+gap;
653 ang = atan(zpos/radius);
655 AliMatrix (idrotm[nrot], 90., 0., 90.-ang,90.,ang, 270.);
657 zcoor = zpos+(zFLTC*0.5+zFLTB+zFLTA*0.5+db*2);
658 gMC->Gspos("FSTR",i, "FLTC", 0., ycoor, zcoor,idrotm[nrot], "ONLY");
660 printf("%s: %f, St. %2i, Pl.5 ",ClassName(),ang*kRaddeg,i);
661 printf("y = %f, z = %f, zpos = %f \n",ycoor,zcoor,zpos);
663 zpos = zpos - zSenStrip/TMath::Cos(ang);
664 } while (zpos-stripWidth*TMath::Cos(ang)*0.5>-t);
667 ////////// Layers after strips /////////////////
668 // honeycomb (Polyethilene) Layer after (1.2cm)
670 Float_t overSpace = fOverSpc;//cm
674 par[2] = (zFLTA *0.5);
675 ycoor = -yFLT/2 + overSpace + par[1];
676 gMC->Gsvolu("FPEA", "BOX ", idtmed[503], par, 3); // Hony
677 gMC->Gspos ("FPEA", 0, "FLTA", 0., ycoor, 0., 0, "ONLY");
678 par[2] = (zFLTB *0.5);
679 gMC->Gsvolu("FPEB", "BOX ", idtmed[503], par, 3); // Hony
680 gMC->Gspos ("FPEB", 0, "FLTB", 0., ycoor, 0., 0, "ONLY");
681 par[2] = (zFLTC *0.5);
682 gMC->Gsvolu("FPEC", "BOX ", idtmed[503], par, 3); // Hony
683 gMC->Gspos ("FPEC", 0, "FLTC", 0., ycoor, 0., 0, "ONLY");
685 // Electronics (Cu) after
688 par[1] = 1.43*0.05*0.5; // 5% of X0
689 par[2] = (zFLTA *0.5);
691 gMC->Gsvolu("FECA", "BOX ", idtmed[501], par, 3); // Cu
692 gMC->Gspos ("FECA", 0, "FLTA", 0., ycoor, 0., 0, "ONLY");
693 par[2] = (zFLTB *0.5);
694 gMC->Gsvolu("FECB", "BOX ", idtmed[501], par, 3); // Cu
695 gMC->Gspos ("FECB", 0, "FLTB", 0., ycoor, 0., 0, "ONLY");
696 par[2] = (zFLTC *0.5);
697 gMC->Gsvolu("FECC", "BOX ", idtmed[501], par, 3); // Cu
698 gMC->Gspos ("FECC", 0, "FLTC", 0., ycoor, 0., 0, "ONLY");
700 // cooling WAter after
703 par[1] = 36.1*0.02*0.5; // 2% of X0
704 par[2] = (zFLTA *0.5);
706 gMC->Gsvolu("FWAA", "BOX ", idtmed[515], par, 3); // Water
707 gMC->Gspos ("FWAA", 0, "FLTA", 0., ycoor, 0., 0, "ONLY");
708 par[2] = (zFLTB *0.5);
709 gMC->Gsvolu("FWAB", "BOX ", idtmed[515], par, 3); // Water
710 gMC->Gspos ("FWAB", 0, "FLTB", 0., ycoor, 0., 0, "ONLY");
711 par[2] = (zFLTC *0.5);
712 gMC->Gsvolu("FWAC", "BOX ", idtmed[515], par, 3); // Water
713 gMC->Gspos ("FWAC", 0, "FLTC", 0., ycoor, 0., 0, "ONLY");
718 par[1] = (yFLT/2-ycoor-0.2)*0.5; // Aluminum layer considered (0.2 cm)
719 par[2] = (zFLTA *0.5);
721 gMC->Gsvolu("FAIA", "BOX ", idtmed[500], par, 3); // Air
722 gMC->Gspos ("FAIA", 0, "FLTA", 0., ycoor, 0., 0, "ONLY");
723 par[2] = (zFLTB *0.5);
724 gMC->Gsvolu("FAIB", "BOX ", idtmed[500], par, 3); // Air
725 gMC->Gspos ("FAIB", 0, "FLTB", 0., ycoor, 0., 0, "ONLY");
726 par[2] = (zFLTC *0.5);
727 gMC->Gsvolu("FAIC", "BOX ", idtmed[500], par, 3); // Air
728 gMC->Gspos ("FAIC", 0, "FLTC", 0., ycoor, 0., 0, "ONLY");
730 //Back Plate honycomb (2cm)
734 ycoor = yFLT/2 - par[1];
735 gMC->Gsvolu("FBPA", "BOX ", idtmed[503], par, 3); // Hony
736 gMC->Gspos ("FBPA", 0, "FLTA", 0., ycoor, 0., 0, "ONLY");
737 gMC->Gsvolu("FBPB", "BOX ", idtmed[503], par, 3); // Hony
738 gMC->Gspos ("FBPB", 0, "FLTB", 0., ycoor, 0., 0, "ONLY");
739 gMC->Gsvolu("FBPC", "BOX ", idtmed[503], par, 3); // Hony
740 gMC->Gspos ("FBPC", 0, "FLTC", 0., ycoor, 0., 0, "ONLY");
744 //_____________________________________________________________________________
745 void AliTOFv3::DrawModule() const
748 // Draw a shaded view of the Time Of Flight version 1
750 // Set everything unseen
751 gMC->Gsatt("*", "seen", -1);
753 // Set ALIC mother transparent
754 gMC->Gsatt("ALIC","SEEN",0);
756 // Set the volumes visible
757 gMC->Gsatt("ALIC","SEEN",0);
759 gMC->Gsatt("FTOA","SEEN",1);
760 gMC->Gsatt("FTOB","SEEN",1);
761 gMC->Gsatt("FTOC","SEEN",1);
762 gMC->Gsatt("FLTA","SEEN",1);
763 gMC->Gsatt("FLTB","SEEN",1);
764 gMC->Gsatt("FLTC","SEEN",1);
765 gMC->Gsatt("FPLA","SEEN",1);
766 gMC->Gsatt("FPLB","SEEN",1);
767 gMC->Gsatt("FPLC","SEEN",1);
768 gMC->Gsatt("FSTR","SEEN",1);
769 gMC->Gsatt("FPEA","SEEN",1);
770 gMC->Gsatt("FPEB","SEEN",1);
771 gMC->Gsatt("FPEC","SEEN",1);
773 gMC->Gsatt("FLZ1","SEEN",0);
774 gMC->Gsatt("FLZ2","SEEN",0);
775 gMC->Gsatt("FLZ3","SEEN",0);
776 gMC->Gsatt("FLX1","SEEN",0);
777 gMC->Gsatt("FLX2","SEEN",0);
778 gMC->Gsatt("FLX3","SEEN",0);
779 gMC->Gsatt("FPAD","SEEN",0);
781 gMC->Gdopt("hide", "on");
782 gMC->Gdopt("shad", "on");
783 gMC->Gsatt("*", "fill", 7);
784 gMC->SetClipBox(".");
785 gMC->SetClipBox("*", 0, 1000, -1000, 1000, -1000, 1000);
787 gMC->Gdraw("alic", 40, 30, 0, 12, 9.5, .02, .02);
788 gMC->Gdhead(1111, "Time Of Flight");
789 gMC->Gdman(18, 4, "MAN");
790 gMC->Gdopt("hide","off");
793 //_____________________________________________________________________________
794 void AliTOFv3::CreateMaterials()
797 // Define materials for the Time Of Flight
799 AliTOF::CreateMaterials();
802 //_____________________________________________________________________________
803 void AliTOFv3::Init()
806 // Initialise the detector after the geometry has been defined
809 printf("%s: **************************************"
811 "**************************************\n",ClassName());
812 printf("\n%s Version 3 of TOF initialing, "
813 "TOF with holes for RICH detector\n",ClassName());
818 fIdFTOA = gMC->VolId("FTOA");
819 fIdFTOB = gMC->VolId("FTOB");
820 fIdFTOC = gMC->VolId("FTOC");
821 fIdFLTA = gMC->VolId("FLTA");
822 fIdFLTB = gMC->VolId("FLTB");
823 fIdFLTC = gMC->VolId("FLTC");
826 printf("%s: **************************************"
828 "**************************************\n",ClassName());
832 //_____________________________________________________________________________
833 void AliTOFv3::StepManager()
836 // Procedure called at each step in the Time Of Flight
838 TLorentzVector mom, pos;
839 Float_t xm[3],pm[3],xpad[3],ppad[3];
840 Float_t hits[13],phi,phid,z;
842 Int_t sector, plate, padx, padz, strip;
843 Int_t copy, padzid, padxid, stripid, i;
844 Int_t *idtmed = fIdtmed->GetArray()-499;
845 Float_t incidenceAngle;
847 if(gMC->GetMedium()==idtmed[513] &&
848 gMC->IsTrackEntering() && gMC->TrackCharge()
849 && gMC->CurrentVolID(copy)==fIdSens)
851 // getting information about hit volumes
853 padzid=gMC->CurrentVolOffID(2,copy);
856 padxid=gMC->CurrentVolOffID(1,copy);
859 stripid=gMC->CurrentVolOffID(4,copy);
862 gMC->TrackPosition(pos);
863 gMC->TrackMomentum(mom);
865 // Double_t NormPos=1./pos.Rho();
866 Double_t normMom=1./mom.Rho();
868 // getting the cohordinates in pad ref system
869 xm[0] = (Float_t)pos.X();
870 xm[1] = (Float_t)pos.Y();
871 xm[2] = (Float_t)pos.Z();
873 pm[0] = (Float_t)mom.X()*normMom;
874 pm[1] = (Float_t)mom.Y()*normMom;
875 pm[2] = (Float_t)mom.Z()*normMom;
877 gMC->Gmtod(xm,xpad,1);
878 gMC->Gmtod(pm,ppad,2);
880 incidenceAngle = TMath::ACos(ppad[1])*kRaddeg;
885 if (TMath::Abs(z) <= fZlenA*0.5) plate = 3;
886 if (z < (fZlenA*0.5+fZlenB) &&
887 z > fZlenA*0.5) plate = 4;
888 if (z >-(fZlenA*0.5+fZlenB) &&
889 z < -fZlenA*0.5) plate = 2;
890 if (z > (fZlenA*0.5+fZlenB)) plate = 5;
891 if (z <-(fZlenA*0.5+fZlenB)) plate = 1;
894 phid = phi*kRaddeg+180.;
895 sector = Int_t (phid/20.);
908 hits[11]= incidenceAngle;
909 hits[12]= gMC->Edep();
917 AddHit(gAlice->CurrentTrack(),vol, hits);