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 1.9 2001/05/04 10:09:48 vicinanz
19 Major upgrades to the strip structure
21 Revision 1.8 2000/12/04 08:48:20 alibrary
22 Fixing problems in the HEAD
24 Revision 1.7 2000/10/02 21:28:17 fca
25 Removal of useless dependecies via forward declarations
27 Revision 1.6 2000/05/10 16:52:18 vicinanz
28 New TOF version with holes for PHOS/RICH
30 Revision 1.4.2.1 2000/05/10 09:37:16 vicinanz
31 New version with Holes for PHOS/RICH
33 Revision 1.14 1999/11/05 22:39:06 fca
36 Revision 1.13 1999/11/02 11:26:39 fca
37 added stdlib.h for exit
39 Revision 1.12 1999/11/01 20:41:57 fca
40 Added protections against using the wrong version of FRAME
42 Revision 1.11 1999/10/22 08:04:14 fca
43 Correct improper use of negative parameters
45 Revision 1.10 1999/10/16 19:30:06 fca
46 Corrected Rotation Matrix and CVS log
48 Revision 1.9 1999/10/15 15:35:20 fca
49 New version for frame1099 with and without holes
51 Revision 1.8 1999/09/29 09:24:33 fca
52 Introduction of the Copyright and cvs Log
56 ///////////////////////////////////////////////////////////////////////////////
58 // Time Of Flight: design of C.Williams //
60 // This class contains the functions for version 0 of the Time Of Flight //
63 // VERSION WITH 5 MODULES AND TILTED STRIPS
64 // NO HITS DEFINED BY DEFAULT FOR THIS VERSION
65 // FULL COVERAGE VERSION
72 // University of Salerno - Italy
75 // University of Bologna - Italy
80 <img src="picts/AliTOFv0Class.gif">
84 ///////////////////////////////////////////////////////////////////////////////
91 #include "TGeometry.h"
93 #include <TLorentzVector.h>
102 //_____________________________________________________________________________
106 // Default constructor
110 //_____________________________________________________________________________
111 AliTOFv0::AliTOFv0(const char *name, const char *title)
115 // Standard constructor
118 // Check that FRAME is there otherwise we have no place where to
120 AliModule* frame=gAlice->GetModule("FRAME");
122 Error("Ctor","TOF needs FRAME to be present\n");
125 if(frame->IsVersion()!=1) {
126 Error("Ctor","FRAME version 1 needed with this version of TOF\n");
132 //____________________________________________________________________________
133 AliTOFv0::~AliTOFv0()
157 //_____________________________________________________________________________
158 void AliTOFv0::BuildGeometry()
161 // Build TOF ROOT geometry for the ALICE event display
164 const int kColorTOF = 27;
167 top = gAlice->GetGeometry()->GetNode("alice");
169 // Position the different copies
170 const Float_t krTof =(fRmax+fRmin)/2;
171 const Float_t khTof = fRmax-fRmin;
172 const Int_t kNTof = fNTof;
173 const Float_t kPi = TMath::Pi();
174 const Float_t kangle = 2*kPi/kNTof;
177 // Define TOF basic volume
179 char nodeName0[7], nodeName1[7], nodeName2[7];
180 char nodeName3[7], nodeName4[7], rotMatNum[7];
182 new TBRIK("S_TOF_C","TOF box","void",
183 120*0.5,khTof*0.5,fZlenC*0.5);
184 new TBRIK("S_TOF_B","TOF box","void",
185 120*0.5,khTof*0.5,fZlenB*0.5);
186 new TBRIK("S_TOF_A","TOF box","void",
187 120*0.5,khTof*0.5,fZlenA*0.5);
189 for (Int_t nodeNum=1;nodeNum<19;nodeNum++){
192 sprintf(rotMatNum,"rot50%i",nodeNum);
193 sprintf(nodeName0,"FTO00%i",nodeNum);
194 sprintf(nodeName1,"FTO10%i",nodeNum);
195 sprintf(nodeName2,"FTO20%i",nodeNum);
196 sprintf(nodeName3,"FTO30%i",nodeNum);
197 sprintf(nodeName4,"FTO40%i",nodeNum);
200 sprintf(rotMatNum,"rot5%i",nodeNum);
201 sprintf(nodeName0,"FTO0%i",nodeNum);
202 sprintf(nodeName1,"FTO1%i",nodeNum);
203 sprintf(nodeName2,"FTO2%i",nodeNum);
204 sprintf(nodeName3,"FTO3%i",nodeNum);
205 sprintf(nodeName4,"FTO4%i",nodeNum);
208 new TRotMatrix(rotMatNum,rotMatNum,90,-20*nodeNum,90,90-20*nodeNum,0,0);
209 ang = (4.5-nodeNum) * kangle;
212 node = new TNode(nodeName0,nodeName0,"S_TOF_C",krTof*TMath::Cos(ang),krTof*TMath::Sin(ang),299.15,rotMatNum);
213 node->SetLineColor(kColorTOF);
217 node = new TNode(nodeName1,nodeName1,"S_TOF_C",krTof*TMath::Cos(ang),krTof*TMath::Sin(ang),-299.15,rotMatNum);
218 node->SetLineColor(kColorTOF);
222 node = new TNode(nodeName2,nodeName2,"S_TOF_B",krTof*TMath::Cos(ang),krTof*TMath::Sin(ang),146.45,rotMatNum);
223 node->SetLineColor(kColorTOF);
227 node = new TNode(nodeName3,nodeName3,"S_TOF_B",krTof*TMath::Cos(ang),krTof*TMath::Sin(ang),-146.45,rotMatNum);
228 node->SetLineColor(kColorTOF);
232 node = new TNode(nodeName4,nodeName4,"S_TOF_A",krTof*TMath::Cos(ang),krTof*TMath::Sin(ang),0.,rotMatNum);
233 node->SetLineColor(kColorTOF);
235 } // end loop on nodeNum
240 //_____________________________________________________________________________
241 void AliTOFv0::CreateGeometry()
244 // Create geometry for Time Of Flight version 0
248 <img src="picts/AliTOFv0.gif">
252 // Creates common geometry
254 AliTOF::CreateGeometry();
257 //_____________________________________________________________________________
258 void AliTOFv0::TOFpc(Float_t xtof, Float_t ytof, Float_t zlenC,
259 Float_t zlenB, Float_t zlenA, Float_t ztof0)
262 // Definition of the Time Of Fligh Resistive Plate Chambers
263 // xFLT, yFLT, zFLT - sizes of TOF modules (large)
265 Float_t ycoor, zcoor;
267 Int_t *idtmed = fIdtmed->GetArray()-499;
270 Float_t hTof = fRmax-fRmin;
272 Float_t radius = fRmin+2.;//cm
276 par[2] = zlenC * 0.5;
277 gMC->Gsvolu("FTOC", "BOX ", idtmed[506], par, 3);
278 par[2] = zlenB * 0.5;
279 gMC->Gsvolu("FTOB", "BOX ", idtmed[506], par, 3);
280 par[2] = zlenA * 0.5;
281 gMC->Gsvolu("FTOA", "BOX ", idtmed[506], par, 3);
284 // Positioning of modules
286 Float_t zcor1 = ztof0 - zlenC*0.5;
287 Float_t zcor2 = ztof0 - zlenC - zlenB*0.5;
290 AliMatrix(idrotm[0], 90., 0., 0., 0., 90,-90.);
291 AliMatrix(idrotm[1], 90.,180., 0., 0., 90, 90.);
292 gMC->Gspos("FTOC", 1, "BTO1", 0, zcor1, 0, idrotm[0], "ONLY");
293 gMC->Gspos("FTOC", 2, "BTO1", 0, -zcor1, 0, idrotm[1], "ONLY");
294 gMC->Gspos("FTOC", 1, "BTO2", 0, zcor1, 0, idrotm[0], "ONLY");
295 gMC->Gspos("FTOC", 2, "BTO2", 0, -zcor1, 0, idrotm[1], "ONLY");
296 gMC->Gspos("FTOC", 1, "BTO3", 0, zcor1, 0, idrotm[0], "ONLY");
297 gMC->Gspos("FTOC", 2, "BTO3", 0, -zcor1, 0, idrotm[1], "ONLY");
299 gMC->Gspos("FTOB", 1, "BTO1", 0, zcor2, 0, idrotm[0], "ONLY");
300 gMC->Gspos("FTOB", 2, "BTO1", 0, -zcor2, 0, idrotm[1], "ONLY");
301 gMC->Gspos("FTOB", 1, "BTO2", 0, zcor2, 0, idrotm[0], "ONLY");
302 gMC->Gspos("FTOB", 2, "BTO2", 0, -zcor2, 0, idrotm[1], "ONLY");
303 gMC->Gspos("FTOB", 1, "BTO3", 0, zcor2, 0, idrotm[0], "ONLY");
304 gMC->Gspos("FTOB", 2, "BTO3", 0, -zcor2, 0, idrotm[1], "ONLY");
306 gMC->Gspos("FTOA", 0, "BTO1", 0, zcor3, 0, idrotm[0], "ONLY");
307 gMC->Gspos("FTOA", 0, "BTO2", 0, zcor3, 0, idrotm[0], "ONLY");
308 gMC->Gspos("FTOA", 0, "BTO3", 0, zcor3, 0, idrotm[0], "ONLY");
310 Float_t db = 0.5;//cm
311 Float_t xFLT, xFST, yFLT, zFLTA, zFLTB, zFLTC;
319 xFST = xFLT-fDeadBndX*2;//cm
321 // Sizes of MRPC pads
323 Float_t yPad = 0.505;//cm
325 // Large not sensitive volumes with Insensitive Freon
329 cout <<"************************* TOF geometry **************************"<<endl;
331 par[2] = (zFLTA *0.5);
332 gMC->Gsvolu("FLTA", "BOX ", idtmed[512], par, 3); // Insensitive Freon
333 gMC->Gspos ("FLTA", 0, "FTOA", 0., 0., 0., 0, "ONLY");
335 par[2] = (zFLTB * 0.5);
336 gMC->Gsvolu("FLTB", "BOX ", idtmed[512], par, 3); // Insensitive Freon
337 gMC->Gspos ("FLTB", 0, "FTOB", 0., 0., 0., 0, "ONLY");
339 par[2] = (zFLTC * 0.5);
340 gMC->Gsvolu("FLTC", "BOX ", idtmed[512], par, 3); // Insensitive Freon
341 gMC->Gspos ("FLTC", 0, "FTOC", 0., 0., 0., 0, "ONLY");
343 ////////// Layers of Aluminum before and after detector //////////
344 ////////// Aluminum Box for Modules (2.0 mm thickness) /////////
345 ////////// lateral walls not simulated
348 ycoor = -yFLT/2 + par[1];
349 par[2] = (zFLTA *0.5);
350 gMC->Gsvolu("FALA", "BOX ", idtmed[508], par, 3); // Alluminium
351 gMC->Gspos ("FALA", 1, "FLTA", 0., ycoor, 0., 0, "ONLY");
352 gMC->Gspos ("FALA", 2, "FLTA", 0.,-ycoor, 0., 0, "ONLY");
353 par[2] = (zFLTB *0.5);
354 gMC->Gsvolu("FALB", "BOX ", idtmed[508], par, 3); // Alluminium
355 gMC->Gspos ("FALB", 1, "FLTB", 0., ycoor, 0., 0, "ONLY");
356 gMC->Gspos ("FALB", 2, "FLTB", 0.,-ycoor, 0., 0, "ONLY");
357 par[2] = (zFLTC *0.5);
358 gMC->Gsvolu("FALC", "BOX ", idtmed[508], par, 3); // Alluminium
359 gMC->Gspos ("FALC", 1, "FLTC", 0., ycoor, 0., 0, "ONLY");
360 gMC->Gspos ("FALC", 2, "FLTC", 0.,-ycoor, 0., 0, "ONLY");
362 ///////////////// Detector itself //////////////////////
363 const Float_t kdeadBound = fDeadBndZ; //cm non-sensitive between the pad edge
364 //and the boundary of the strip
365 const Int_t knx = fNpadX; // number of pads along x
366 const Int_t knz = fNpadZ; // number of pads along z
367 const Float_t kspace = fSpace; //cm distance from the front plate of the box
369 Float_t zSenStrip = fZpad*fNpadZ;//cm
370 Float_t stripWidth = zSenStrip + 2*kdeadBound;
373 par[2] = stripWidth*0.5;
375 // new description for strip volume
376 // -- all constants are expressed in cm
377 // heigth of different layers
378 const Float_t khhony = 1. ; // heigth of HONY Layer
379 const Float_t khpcby = 0.15 ; // heigth of PCB Layer
380 const Float_t khmyly = 0.035 ; // heigth of MYLAR Layer
381 const Float_t khgraphy = 0.02 ; // heigth of GRAPHITE Layer
382 const Float_t khglasseiy = 0.32; // 2.2 Ext. Glass + 1. Semi Int. Glass (mm)
383 const Float_t khsensmy = 0.11 ; // heigth of Sensitive Freon Mixture
384 const Float_t kwsensmz = 2*3.5 ; // cm
385 const Float_t klsensmx = 48*2.5; // cm
386 const Float_t kwpadz = 3.5; // cm z dimension of the FPAD volume
387 const Float_t klpadx = 2.5; // cm x dimension of the FPAD volume
389 // heigth of the FSTR Volume (the strip volume)
390 const Float_t khstripy = 2*(khhony+khpcby+khmyly+khgraphy+khglasseiy)+khsensmy;
391 // width of the FSTR Volume (the strip volume)
392 const Float_t kwstripz = 10.;
393 // length of the FSTR Volume (the strip volume)
394 const Float_t klstripx = 122.;
396 Float_t parfp[3]={klstripx*0.5,khstripy*0.5,kwstripz*0.5};
397 // coordinates of the strip center in the strip reference frame; used for positioning
398 // internal strip volumes
399 Float_t posfp[3]={0.,0.,0.};
401 // FSTR volume definition and filling this volume with non sensitive Gas Mixture
402 gMC->Gsvolu("FSTR","BOX",idtmed[512],parfp,3);
403 //-- HONY Layer definition
405 parfp[1] = khhony*0.5;
407 gMC->Gsvolu("FHON","BOX",idtmed[503],parfp,3);
408 // positioning 2 HONY Layers on FSTR volume
409 posfp[1]=-khstripy*0.5+parfp[1];
410 gMC->Gspos("FHON",1,"FSTR",0., posfp[1],0.,0,"ONLY");
411 gMC->Gspos("FHON",2,"FSTR",0.,-posfp[1],0.,0,"ONLY");
413 //-- PCB Layer definition
414 parfp[1] = khpcby*0.5;
415 gMC->Gsvolu("FPCB","BOX",idtmed[504],parfp,3);
416 // positioning 2 PCB Layers on FSTR volume
417 posfp[1]=-khstripy*0.5+khhony+parfp[1];
418 gMC->Gspos("FPCB",1,"FSTR",0., posfp[1],0.,0,"ONLY");
419 gMC->Gspos("FPCB",2,"FSTR",0.,-posfp[1],0.,0,"ONLY");
421 //-- MYLAR Layer definition
422 parfp[1] = khmyly*0.5;
423 gMC->Gsvolu("FMYL","BOX",idtmed[511],parfp,3);
424 // positioning 2 MYLAR Layers on FSTR volume
425 posfp[1] = -khstripy*0.5+khhony+khpcby+parfp[1];
426 gMC->Gspos("FMYL",1,"FSTR",0., posfp[1],0.,0,"ONLY");
427 gMC->Gspos("FMYL",2,"FSTR",0.,-posfp[1],0.,0,"ONLY");
429 //-- Graphite Layer definition
430 parfp[1] = khgraphy*0.5;
431 gMC->Gsvolu("FGRP","BOX",idtmed[502],parfp,3);
432 // positioning 2 Graphite Layers on FSTR volume
433 posfp[1] = -khstripy*0.5+khhony+khpcby+khmyly+parfp[1];
434 gMC->Gspos("FGRP",1,"FSTR",0., posfp[1],0.,0,"ONLY");
435 gMC->Gspos("FGRP",2,"FSTR",0.,-posfp[1],0.,0,"ONLY");
437 //-- Glass (EXT. +Semi INT.) Layer definition
438 parfp[1] = khglasseiy*0.5;
439 gMC->Gsvolu("FGLA","BOX",idtmed[514],parfp,3);
440 // positioning 2 Glass Layers on FSTR volume
441 posfp[1] = -khstripy*0.5+khhony+khpcby+khmyly+khgraphy+parfp[1];
442 gMC->Gspos("FGLA",1,"FSTR",0., posfp[1],0.,0,"ONLY");
443 gMC->Gspos("FGLA",2,"FSTR",0.,-posfp[1],0.,0,"ONLY");
445 //-- Sensitive Mixture Layer definition
446 parfp[0] = klsensmx*0.5;
447 parfp[1] = khsensmy*0.5;
448 parfp[2] = kwsensmz*0.5;
449 gMC->Gsvolu("FSEN","BOX",idtmed[513],parfp,3);
450 // positioning the sensitive gas Layer on FSTR volume
451 gMC->Gspos("FSEN",0,"FSTR",0.,0.,0.,0,"ONLY");
453 // dividing FSEN along z in knz=2 and along x in knx=48
454 gMC->Gsdvn("FSEZ","FSEN",knz,3);
455 gMC->Gsdvn("FSEX","FSEZ",knx,1);
457 // FPAD volume definition
458 parfp[0] = klpadx*0.5;
459 parfp[1] = khsensmy*0.5;
460 parfp[2] = kwpadz*0.5;
461 gMC->Gsvolu("FPAD","BOX",idtmed[513],parfp,3);
462 // positioning the FPAD volumes on previous divisions
463 gMC->Gspos("FPAD",0,"FSEX",0.,0.,0.,0,"ONLY");
465 //// Positioning the Strips (FSTR) in the FLT volumes /////
469 Float_t t = zFLTC+zFLTB+zFLTA*0.5+ 2*db;//Half Width of Barrel
471 Float_t gap = fGapA; //cm distance between the strip axis
477 ycoor = -14.5 + kspace ; //2 cm over front plate
479 AliMatrix (idrotm[0], 90., 0.,90.,90.,0., 90.);
480 gMC->Gspos("FSTR",j,"FLTA",0.,ycoor, 0.,idrotm[0],"ONLY");
482 printf("%f, St. %2i, Pl.3 ",ang*kRaddeg,i);
483 printf("y = %f, z = %f, zpos = %f \n",ycoor,zcoor,zpos);
487 Int_t upDown = -1; // upDown=-1 -> Upper strip
488 // upDown=+1 -> Lower strip
490 ang = atan(zcoor/radius);
492 AliMatrix (idrotm[nrot], 90., 0.,90.-ang,90.,-ang, 90.);
493 AliMatrix (idrotm[nrot+1],90.,180.,90.+ang,90., ang, 90.);
495 ycoor = -14.5+ kspace; //2 cm over front plate
496 ycoor += (1-(upDown+1)/2)*gap;
497 gMC->Gspos("FSTR",j ,"FLTA",0.,ycoor, zcoor,idrotm[nrot], "ONLY");
498 gMC->Gspos("FSTR",j+1,"FLTA",0.,ycoor,-zcoor,idrotm[nrot+1],"ONLY");
500 printf("%f, St. %2i, Pl.3 ",ang*kRaddeg,i);
501 printf("y = %f, z = %f, zpos = %f \n",ycoor,zcoor,zpos);
504 upDown*= -1; // Alternate strips
505 zcoor = zcoor-(zSenStrip/2)/TMath::Cos(ang)-
506 upDown*gap*TMath::Tan(ang)-
507 (zSenStrip/2)/TMath::Cos(ang);
508 } while (zcoor-(stripWidth/2)*TMath::Cos(ang)>-t+zFLTC+zFLTB+db*2);
510 zcoor = zcoor+(zSenStrip/2)/TMath::Cos(ang)+
511 upDown*gap*TMath::Tan(ang)+
512 (zSenStrip/2)/TMath::Cos(ang);
515 zcoor = zcoor-(zSenStrip/2)/TMath::Cos(ang)-
516 upDown*gap*TMath::Tan(ang)-
517 (zSenStrip/2)/TMath::Cos(ang);
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.);
525 ycoor = -14.5+ kspace; //2 cm over front plate
526 ycoor += (1-(upDown+1)/2)*gap;
527 gMC->Gspos("FSTR",j ,"FLTA",0.,ycoor, zcoor,idrotm[nrot], "ONLY");
528 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);
532 ycoor = -hTof/2.+ kspace;//2 cm over front plate
539 Float_t deadRegion = 1.0;//cm
541 zpos = zcoor - (zSenStrip/2)/TMath::Cos(ang)-
542 upDown*gap*TMath::Tan(ang)-
543 (zSenStrip/2)/TMath::Cos(ang)-
544 deadRegion/TMath::Cos(ang);
546 ang = atan(zpos/radius);
548 AliMatrix (idrotm[nrot], 90., 0., 90.-ang,90.,ang, 270.);
550 ycoor = -hTof*0.5+ kspace ; //2 cm over front plate
551 ycoor += (1-(upDown+1)/2)*gap;
552 zcoor = zpos+(zFLTA*0.5+zFLTB*0.5+db); // Moves to the system of the modulus FLTB
553 gMC->Gspos("FSTR",i, "FLTB", 0., ycoor, zcoor,idrotm[nrot], "ONLY");
555 printf("%f, St. %2i, Pl.4 ",ang*kRaddeg,i);
556 printf("y = %f, z = %f, zpos = %f \n",ycoor,zcoor,zpos);
562 zpos = zpos - (zSenStrip/2)/TMath::Cos(ang)-
563 upDown*gap*TMath::Tan(ang)-
564 (zSenStrip/2)/TMath::Cos(ang);
565 ang = atan(zpos/radius);
567 AliMatrix (idrotm[nrot], 90., 0., 90.-ang,90.,ang, 270.);
569 ycoor = -hTof*0.5+ kspace ; //2 cm over front plate
570 ycoor += (1-(upDown+1)/2)*gap;
571 zcoor = zpos+(zFLTA*0.5+zFLTB*0.5+db); // Moves to the system of the modulus FLTB
572 gMC->Gspos("FSTR",i, "FLTB", 0., ycoor, zcoor,idrotm[nrot], "ONLY");
574 printf("%f, St. %2i, Pl.4 ",ang*kRaddeg,i);
575 printf("y = %f, z = %f, zpos = %f \n",ycoor,zcoor,zpos);
579 } while (TMath::Abs(ang*kRaddeg)<22.5);
580 //till we reach a tilting angle of 22.5 degrees
582 ycoor = -hTof*0.5+ kspace ; //2 cm over front plate
583 zpos = zpos - zSenStrip/TMath::Cos(ang);
586 ang = atan(zpos/radius);
588 AliMatrix (idrotm[nrot], 90., 0., 90.-ang,90.,ang, 270.);
590 zcoor = zpos+(zFLTB/2+zFLTA/2+db);
591 gMC->Gspos("FSTR",i, "FLTB", 0., ycoor, zcoor,idrotm[nrot], "ONLY");
592 zpos = zpos - zSenStrip/TMath::Cos(ang);
593 printf("%f, St. %2i, Pl.4 ",ang*kRaddeg,i);
594 printf("y = %f, z = %f, zpos = %f \n",ycoor,zcoor,zpos);
596 } while (zpos-stripWidth*0.5/TMath::Cos(ang)>-t+zFLTC+db);
600 zpos = zpos + zSenStrip/TMath::Cos(ang);
602 zpos = zpos - (zSenStrip/2)/TMath::Cos(ang)+
604 (zSenStrip/2)/TMath::Cos(ang);
608 ycoor= -hTof*0.5+kspace+gap;
612 ang = atan(zpos/radius);
614 AliMatrix (idrotm[nrot], 90., 0., 90.-ang,90.,ang, 270.);
616 zcoor = zpos+(zFLTC*0.5+zFLTB+zFLTA*0.5+db*2);
617 gMC->Gspos("FSTR",i, "FLTC", 0., ycoor, zcoor,idrotm[nrot], "ONLY");
619 printf("%f, St. %2i, Pl.5 ",ang*kRaddeg,i);
620 printf("y = %f, z = %f, zpos = %f \n",ycoor,zcoor,zpos);
622 zpos = zpos - zSenStrip/TMath::Cos(ang);
623 } while (zpos-stripWidth*TMath::Cos(ang)*0.5>-t);
626 ////////// Layers after strips /////////////////
627 // honeycomb (Polyethilene) Layer after (1.2cm)
629 Float_t overSpace = fOverSpc;//cm
633 par[2] = (zFLTA *0.5);
634 ycoor = -yFLT/2 + overSpace + par[1];
635 gMC->Gsvolu("FPEA", "BOX ", idtmed[503], par, 3); // Hony
636 gMC->Gspos ("FPEA", 0, "FLTA", 0., ycoor, 0., 0, "ONLY");
637 par[2] = (zFLTB *0.5);
638 gMC->Gsvolu("FPEB", "BOX ", idtmed[503], par, 3); // Hony
639 gMC->Gspos ("FPEB", 0, "FLTB", 0., ycoor, 0., 0, "ONLY");
640 par[2] = (zFLTC *0.5);
641 gMC->Gsvolu("FPEC", "BOX ", idtmed[503], par, 3); // Hony
642 gMC->Gspos ("FPEC", 0, "FLTC", 0., ycoor, 0., 0, "ONLY");
644 // Electronics (Cu) after
647 par[1] = 1.43*0.05*0.5; // 5% of X0
648 par[2] = (zFLTA *0.5);
650 gMC->Gsvolu("FECA", "BOX ", idtmed[501], par, 3); // Cu
651 gMC->Gspos ("FECA", 0, "FLTA", 0., ycoor, 0., 0, "ONLY");
652 par[2] = (zFLTB *0.5);
653 gMC->Gsvolu("FECB", "BOX ", idtmed[501], par, 3); // Cu
654 gMC->Gspos ("FECB", 0, "FLTB", 0., ycoor, 0., 0, "ONLY");
655 par[2] = (zFLTC *0.5);
656 gMC->Gsvolu("FECC", "BOX ", idtmed[501], par, 3); // Cu
657 gMC->Gspos ("FECC", 0, "FLTC", 0., ycoor, 0., 0, "ONLY");
659 // cooling WAter after
662 par[1] = 36.1*0.02*0.5; // 2% of X0
663 par[2] = (zFLTA *0.5);
665 gMC->Gsvolu("FWAA", "BOX ", idtmed[515], par, 3); // Water
666 gMC->Gspos ("FWAA", 0, "FLTA", 0., ycoor, 0., 0, "ONLY");
667 par[2] = (zFLTB *0.5);
668 gMC->Gsvolu("FWAB", "BOX ", idtmed[515], par, 3); // Water
669 gMC->Gspos ("FWAB", 0, "FLTB", 0., ycoor, 0., 0, "ONLY");
670 par[2] = (zFLTC *0.5);
671 gMC->Gsvolu("FWAC", "BOX ", idtmed[515], par, 3); // Water
672 gMC->Gspos ("FWAC", 0, "FLTC", 0., ycoor, 0., 0, "ONLY");
677 par[1] = (yFLT/2-ycoor-0.2)*0.5; // Aluminum layer considered (0.2 cm)
678 par[2] = (zFLTA *0.5);
680 gMC->Gsvolu("FAIA", "BOX ", idtmed[500], par, 3); // Air
681 gMC->Gspos ("FAIA", 0, "FLTA", 0., ycoor, 0., 0, "ONLY");
682 par[2] = (zFLTB *0.5);
683 gMC->Gsvolu("FAIB", "BOX ", idtmed[500], par, 3); // Air
684 gMC->Gspos ("FAIB", 0, "FLTB", 0., ycoor, 0., 0, "ONLY");
685 par[2] = (zFLTC *0.5);
686 gMC->Gsvolu("FAIC", "BOX ", idtmed[500], par, 3); // Air
687 gMC->Gspos ("FAIC", 0, "FLTC", 0., ycoor, 0., 0, "ONLY");
689 //Back Plate honycomb (2cm)
693 ycoor = yFLT/2 - par[1];
694 gMC->Gsvolu("FBPA", "BOX ", idtmed[503], par, 3); // Hony
695 gMC->Gspos ("FBPA", 0, "FLTA", 0., ycoor, 0., 0, "ONLY");
696 gMC->Gsvolu("FBPB", "BOX ", idtmed[503], par, 3); // Hony
697 gMC->Gspos ("FBPB", 0, "FLTB", 0., ycoor, 0., 0, "ONLY");
698 gMC->Gsvolu("FBPC", "BOX ", idtmed[503], par, 3); // Hony
699 gMC->Gspos ("FBPC", 0, "FLTC", 0., ycoor, 0., 0, "ONLY");
703 //_____________________________________________________________________________
704 void AliTOFv0::DrawModule() const
707 // Draw a shaded view of the Time Of Flight version 1
709 // Set everything unseen
710 gMC->Gsatt("*", "seen", -1);
712 // Set ALIC mother transparent
713 gMC->Gsatt("ALIC","SEEN",0);
715 // Set the volumes visible
716 gMC->Gsatt("ALIC","SEEN",0);
718 gMC->Gsatt("FTOA","SEEN",1);
719 gMC->Gsatt("FTOB","SEEN",1);
720 gMC->Gsatt("FTOC","SEEN",1);
721 gMC->Gsatt("FLTA","SEEN",1);
722 gMC->Gsatt("FLTB","SEEN",1);
723 gMC->Gsatt("FLTC","SEEN",1);
724 gMC->Gsatt("FPLA","SEEN",1);
725 gMC->Gsatt("FPLB","SEEN",1);
726 gMC->Gsatt("FPLC","SEEN",1);
727 gMC->Gsatt("FSTR","SEEN",1);
728 gMC->Gsatt("FPEA","SEEN",1);
729 gMC->Gsatt("FPEB","SEEN",1);
730 gMC->Gsatt("FPEC","SEEN",1);
732 gMC->Gsatt("FLZ1","SEEN",0);
733 gMC->Gsatt("FLZ2","SEEN",0);
734 gMC->Gsatt("FLZ3","SEEN",0);
735 gMC->Gsatt("FLX1","SEEN",0);
736 gMC->Gsatt("FLX2","SEEN",0);
737 gMC->Gsatt("FLX3","SEEN",0);
738 gMC->Gsatt("FPAD","SEEN",0);
740 gMC->Gdopt("hide", "on");
741 gMC->Gdopt("shad", "on");
742 gMC->Gsatt("*", "fill", 7);
743 gMC->SetClipBox(".");
744 gMC->SetClipBox("*", 0, 1000, -1000, 1000, -1000, 1000);
746 gMC->Gdraw("alic", 40, 30, 0, 12, 9.5, .02, .02);
747 gMC->Gdhead(1111, "Time Of Flight");
748 gMC->Gdman(18, 4, "MAN");
749 gMC->Gdopt("hide","off");
752 //_____________________________________________________________________________
753 void AliTOFv0::CreateMaterials()
756 // Define materials for the Time Of Flight
758 AliTOF::CreateMaterials();
761 //_____________________________________________________________________________
762 void AliTOFv0::Init()
765 // Initialise the detector after the geometry has been defined
767 printf("**************************************"
769 "**************************************\n");
770 printf("\n Version 0 of TOF initialing, "
771 "symmetric TOF - Full Coverage version\n");
775 fIdFTOA = gMC->VolId("FTOA");
776 fIdFTOB = gMC->VolId("FTOB");
777 fIdFTOC = gMC->VolId("FTOC");
778 fIdFLTA = gMC->VolId("FLTA");
779 fIdFLTB = gMC->VolId("FLTB");
780 fIdFLTC = gMC->VolId("FLTC");
783 printf("%s: **************************************"
785 "**************************************\n",ClassName());
789 //_____________________________________________________________________________
790 void AliTOFv0::StepManager()
793 // Procedure called at each step in the Time Of Flight
795 TLorentzVector mom, pos;
796 Float_t xm[3],pm[3],xpad[3],ppad[3];
797 Float_t hits[13],phi,phid,z;
799 Int_t sector, plate, padx, padz, strip;
800 Int_t copy, padzid, padxid, stripid, i;
801 Int_t *idtmed = fIdtmed->GetArray()-499;
802 Float_t incidenceAngle;
804 if(gMC->GetMedium()==idtmed[513] &&
805 gMC->IsTrackEntering() && gMC->TrackCharge()
806 && gMC->CurrentVolID(copy)==fIdSens)
808 // getting information about hit volumes
810 padzid=gMC->CurrentVolOffID(2,copy);
813 padxid=gMC->CurrentVolOffID(1,copy);
816 stripid=gMC->CurrentVolOffID(4,copy);
819 gMC->TrackPosition(pos);
820 gMC->TrackMomentum(mom);
822 // Double_t NormPos=1./pos.Rho();
823 Double_t normMom=1./mom.Rho();
825 // getting the cohordinates in pad ref system
826 xm[0] = (Float_t)pos.X();
827 xm[1] = (Float_t)pos.Y();
828 xm[2] = (Float_t)pos.Z();
830 pm[0] = (Float_t)mom.X()*normMom;
831 pm[1] = (Float_t)mom.Y()*normMom;
832 pm[2] = (Float_t)mom.Z()*normMom;
834 gMC->Gmtod(xm,xpad,1);
835 gMC->Gmtod(pm,ppad,2);
837 incidenceAngle = TMath::ACos(ppad[1])*kRaddeg;
842 if (TMath::Abs(z) <= fZlenA*0.5) plate = 3;
843 if (z < (fZlenA*0.5+fZlenB) &&
844 z > fZlenA*0.5) plate = 4;
845 if (z >-(fZlenA*0.5+fZlenB) &&
846 z < -fZlenA*0.5) plate = 2;
847 if (z > (fZlenA*0.5+fZlenB)) plate = 5;
848 if (z <-(fZlenA*0.5+fZlenB)) plate = 1;
851 phid = phi*kRaddeg+180.;
852 sector = Int_t (phid/20.);
865 hits[11]= incidenceAngle;
866 hits[12]= gMC->Edep();
874 AddHit(gAlice->CurrentTrack(),vol, hits);