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 2001/09/20 15:54:22 vicinanz
19 Updated Strip Structure (Double Stack)
21 Revision 1.21 2001/08/28 08:45:59 vicinanz
22 TTask and TFolder structures implemented
24 Revision 1.9 2001/05/04 10:09:48 vicinanz
25 Major upgrades to the strip structure
27 Revision 1.8 2000/12/04 08:48:20 alibrary
28 Fixing problems in the HEAD
30 Revision 1.7 2000/10/02 21:28:17 fca
31 Removal of useless dependecies via forward declarations
33 Revision 1.6 2000/05/10 16:52:18 vicinanz
34 New TOF version with holes for PHOS/RICH
36 Revision 1.4.2.1 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 0 of the Time Of Flight //
69 // VERSION WITH 5 MODULES AND TILTED STRIPS
70 // NO HITS DEFINED BY DEFAULT FOR THIS VERSION
71 // FULL COVERAGE VERSION
78 // University of Salerno - Italy
81 // University of Bologna - Italy
86 <img src="picts/AliTOFv0Class.gif">
90 ///////////////////////////////////////////////////////////////////////////////
97 #include "TGeometry.h"
99 #include <TLorentzVector.h>
103 #include "AliConst.h"
108 //_____________________________________________________________________________
112 // Default constructor
116 //_____________________________________________________________________________
117 AliTOFv0::AliTOFv0(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 //____________________________________________________________________________
140 void AliTOFv0::BuildGeometry()
143 // Build TOF ROOT geometry for the ALICE event display
146 const int kColorTOF = 27;
149 top = gAlice->GetGeometry()->GetNode("alice");
151 // Position the different copies
152 const Float_t krTof =(fRmax+fRmin)/2;
153 const Float_t khTof = fRmax-fRmin;
154 const Int_t kNTof = fNTof;
155 const Float_t kPi = TMath::Pi();
156 const Float_t kangle = 2*kPi/kNTof;
159 // Define TOF basic volume
161 char nodeName0[7], nodeName1[7], nodeName2[7];
162 char nodeName3[7], nodeName4[7], rotMatNum[7];
164 new TBRIK("S_TOF_C","TOF box","void",
165 120*0.5,khTof*0.5,fZlenC*0.5);
166 new TBRIK("S_TOF_B","TOF box","void",
167 120*0.5,khTof*0.5,fZlenB*0.5);
168 new TBRIK("S_TOF_A","TOF box","void",
169 120*0.5,khTof*0.5,fZlenA*0.5);
171 for (Int_t nodeNum=1;nodeNum<19;nodeNum++){
174 sprintf(rotMatNum,"rot50%i",nodeNum);
175 sprintf(nodeName0,"FTO00%i",nodeNum);
176 sprintf(nodeName1,"FTO10%i",nodeNum);
177 sprintf(nodeName2,"FTO20%i",nodeNum);
178 sprintf(nodeName3,"FTO30%i",nodeNum);
179 sprintf(nodeName4,"FTO40%i",nodeNum);
182 sprintf(rotMatNum,"rot5%i",nodeNum);
183 sprintf(nodeName0,"FTO0%i",nodeNum);
184 sprintf(nodeName1,"FTO1%i",nodeNum);
185 sprintf(nodeName2,"FTO2%i",nodeNum);
186 sprintf(nodeName3,"FTO3%i",nodeNum);
187 sprintf(nodeName4,"FTO4%i",nodeNum);
190 new TRotMatrix(rotMatNum,rotMatNum,90,-20*nodeNum,90,90-20*nodeNum,0,0);
191 ang = (4.5-nodeNum) * kangle;
194 node = new TNode(nodeName0,nodeName0,"S_TOF_C",krTof*TMath::Cos(ang),krTof*TMath::Sin(ang),299.15,rotMatNum);
195 node->SetLineColor(kColorTOF);
199 node = new TNode(nodeName1,nodeName1,"S_TOF_C",krTof*TMath::Cos(ang),krTof*TMath::Sin(ang),-299.15,rotMatNum);
200 node->SetLineColor(kColorTOF);
204 node = new TNode(nodeName2,nodeName2,"S_TOF_B",krTof*TMath::Cos(ang),krTof*TMath::Sin(ang),146.45,rotMatNum);
205 node->SetLineColor(kColorTOF);
209 node = new TNode(nodeName3,nodeName3,"S_TOF_B",krTof*TMath::Cos(ang),krTof*TMath::Sin(ang),-146.45,rotMatNum);
210 node->SetLineColor(kColorTOF);
214 node = new TNode(nodeName4,nodeName4,"S_TOF_A",krTof*TMath::Cos(ang),krTof*TMath::Sin(ang),0.,rotMatNum);
215 node->SetLineColor(kColorTOF);
217 } // end loop on nodeNum
222 //_____________________________________________________________________________
223 void AliTOFv0::CreateGeometry()
226 // Create geometry for Time Of Flight version 0
230 <img src="picts/AliTOFv0.gif">
234 // Creates common geometry
236 AliTOF::CreateGeometry();
239 //_____________________________________________________________________________
240 void AliTOFv0::TOFpc(Float_t xtof, Float_t ytof, Float_t zlenC,
241 Float_t zlenB, Float_t zlenA, Float_t ztof0)
244 // Definition of the Time Of Fligh Resistive Plate Chambers
245 // xFLT, yFLT, zFLT - sizes of TOF modules (large)
247 Float_t ycoor, zcoor;
249 Int_t *idtmed = fIdtmed->GetArray()-499;
252 Float_t hTof = fRmax-fRmin;
254 Float_t radius = fRmin+2.;//cm
258 par[2] = zlenC * 0.5;
259 gMC->Gsvolu("FTOC", "BOX ", idtmed[506], par, 3);
260 par[2] = zlenB * 0.5;
261 gMC->Gsvolu("FTOB", "BOX ", idtmed[506], par, 3);
262 par[2] = zlenA * 0.5;
263 gMC->Gsvolu("FTOA", "BOX ", idtmed[506], par, 3);
266 // Positioning of modules
268 Float_t zcor1 = ztof0 - zlenC*0.5;
269 Float_t zcor2 = ztof0 - zlenC - zlenB*0.5;
272 AliMatrix(idrotm[0], 90., 0., 0., 0., 90,-90.);
273 AliMatrix(idrotm[1], 90.,180., 0., 0., 90, 90.);
274 gMC->Gspos("FTOC", 1, "BTO1", 0, zcor1, 0, idrotm[0], "ONLY");
275 gMC->Gspos("FTOC", 2, "BTO1", 0, -zcor1, 0, idrotm[1], "ONLY");
276 gMC->Gspos("FTOC", 1, "BTO2", 0, zcor1, 0, idrotm[0], "ONLY");
277 gMC->Gspos("FTOC", 2, "BTO2", 0, -zcor1, 0, idrotm[1], "ONLY");
278 gMC->Gspos("FTOC", 1, "BTO3", 0, zcor1, 0, idrotm[0], "ONLY");
279 gMC->Gspos("FTOC", 2, "BTO3", 0, -zcor1, 0, idrotm[1], "ONLY");
281 gMC->Gspos("FTOB", 1, "BTO1", 0, zcor2, 0, idrotm[0], "ONLY");
282 gMC->Gspos("FTOB", 2, "BTO1", 0, -zcor2, 0, idrotm[1], "ONLY");
283 gMC->Gspos("FTOB", 1, "BTO2", 0, zcor2, 0, idrotm[0], "ONLY");
284 gMC->Gspos("FTOB", 2, "BTO2", 0, -zcor2, 0, idrotm[1], "ONLY");
285 gMC->Gspos("FTOB", 1, "BTO3", 0, zcor2, 0, idrotm[0], "ONLY");
286 gMC->Gspos("FTOB", 2, "BTO3", 0, -zcor2, 0, idrotm[1], "ONLY");
288 gMC->Gspos("FTOA", 0, "BTO1", 0, zcor3, 0, idrotm[0], "ONLY");
289 gMC->Gspos("FTOA", 0, "BTO2", 0, zcor3, 0, idrotm[0], "ONLY");
290 gMC->Gspos("FTOA", 0, "BTO3", 0, zcor3, 0, idrotm[0], "ONLY");
292 Float_t db = 0.5;//cm
293 Float_t xFLT, xFST, yFLT, zFLTA, zFLTB, zFLTC;
301 xFST = xFLT-fDeadBndX*2;//cm
303 // Sizes of MRPC pads
305 Float_t yPad = 0.505;//cm
307 // Large not sensitive volumes with Insensitive Freon
311 cout <<"************************* TOF geometry **************************"<<endl;
313 par[2] = (zFLTA *0.5);
314 gMC->Gsvolu("FLTA", "BOX ", idtmed[512], par, 3); // Insensitive Freon
315 gMC->Gspos ("FLTA", 0, "FTOA", 0., 0., 0., 0, "ONLY");
317 par[2] = (zFLTB * 0.5);
318 gMC->Gsvolu("FLTB", "BOX ", idtmed[512], par, 3); // Insensitive Freon
319 gMC->Gspos ("FLTB", 0, "FTOB", 0., 0., 0., 0, "ONLY");
321 par[2] = (zFLTC * 0.5);
322 gMC->Gsvolu("FLTC", "BOX ", idtmed[512], par, 3); // Insensitive Freon
323 gMC->Gspos ("FLTC", 0, "FTOC", 0., 0., 0., 0, "ONLY");
325 ////////// Layers of Aluminum before and after detector //////////
326 ////////// Aluminum Box for Modules (2.0 mm thickness) /////////
327 ////////// lateral walls not simulated
330 ycoor = -yFLT/2 + par[1];
331 par[2] = (zFLTA *0.5);
332 gMC->Gsvolu("FALA", "BOX ", idtmed[508], par, 3); // Alluminium
333 gMC->Gspos ("FALA", 1, "FLTA", 0., ycoor, 0., 0, "ONLY");
334 gMC->Gspos ("FALA", 2, "FLTA", 0.,-ycoor, 0., 0, "ONLY");
335 par[2] = (zFLTB *0.5);
336 gMC->Gsvolu("FALB", "BOX ", idtmed[508], par, 3); // Alluminium
337 gMC->Gspos ("FALB", 1, "FLTB", 0., ycoor, 0., 0, "ONLY");
338 gMC->Gspos ("FALB", 2, "FLTB", 0.,-ycoor, 0., 0, "ONLY");
339 par[2] = (zFLTC *0.5);
340 gMC->Gsvolu("FALC", "BOX ", idtmed[508], par, 3); // Alluminium
341 gMC->Gspos ("FALC", 1, "FLTC", 0., ycoor, 0., 0, "ONLY");
342 gMC->Gspos ("FALC", 2, "FLTC", 0.,-ycoor, 0., 0, "ONLY");
344 ///////////////// Detector itself //////////////////////
345 const Float_t kdeadBound = fDeadBndZ; //cm non-sensitive between the pad edge
346 //and the boundary of the strip
347 const Int_t knx = fNpadX; // number of pads along x
348 const Int_t knz = fNpadZ; // number of pads along z
349 const Float_t kspace = fSpace; //cm distance from the front plate of the box
351 Float_t zSenStrip = fZpad*fNpadZ;//cm
352 Float_t stripWidth = zSenStrip + 2*kdeadBound;
355 par[2] = stripWidth*0.5;
357 // new description for strip volume -double stack strip-
358 // -- all constants are expressed in cm
359 // heigth of different layers
360 const Float_t khhony = 1. ; // heigth of HONY Layer
361 const Float_t khpcby = 0.15 ; // heigth of PCB Layer
362 const Float_t khmyly = 0.035 ; // heigth of MYLAR Layer
363 const Float_t khgraphy = 0.02 ; // heigth of GRAPHITE Layer
364 const Float_t khglasseiy = 0.17; // 0.6 Ext. Glass + 1.1 i.e. (Int. Glass/2) (mm)
365 const Float_t khsensmy = 0.11 ; // heigth of Sensitive Freon Mixture
366 const Float_t kwsensmz = 2*3.5 ; // cm
367 const Float_t klsensmx = 48*2.5; // cm
368 const Float_t kwpadz = 3.5; // cm z dimension of the FPAD volume
369 const Float_t klpadx = 2.5; // cm x dimension of the FPAD volume
371 // heigth of the FSTR Volume (the strip volume)
372 const Float_t khstripy = 2*khhony+3*khpcby+4*(khmyly+khgraphy+khglasseiy)+2*khsensmy;
373 // width of the FSTR Volume (the strip volume)
374 const Float_t kwstripz = 10.;
375 // length of the FSTR Volume (the strip volume)
376 const Float_t klstripx = 122.;
378 Float_t parfp[3]={klstripx*0.5,khstripy*0.5,kwstripz*0.5};
379 // coordinates of the strip center in the strip reference frame; used for positioning
380 // internal strip volumes
381 Float_t posfp[3]={0.,0.,0.};
384 // FSTR volume definition and filling this volume with non sensitive Gas Mixture
385 gMC->Gsvolu("FSTR","BOX",idtmed[512],parfp,3);
386 //-- HONY Layer definition
388 parfp[1] = khhony*0.5;
390 gMC->Gsvolu("FHON","BOX",idtmed[503],parfp,3);
391 // positioning 2 HONY Layers on FSTR volume
393 posfp[1]=-khstripy*0.5+parfp[1];
394 gMC->Gspos("FHON",1,"FSTR",0., posfp[1],0.,0,"ONLY");
395 gMC->Gspos("FHON",2,"FSTR",0.,-posfp[1],0.,0,"ONLY");
397 //-- PCB Layer definition
398 parfp[1] = khpcby*0.5;
399 gMC->Gsvolu("FPCB","BOX",idtmed[504],parfp,3);
400 // positioning 2 PCB Layers on FSTR volume
401 posfp[1]=-khstripy*0.5+khhony+parfp[1];
402 gMC->Gspos("FPCB",1,"FSTR",0., posfp[1],0.,0,"ONLY");
403 gMC->Gspos("FPCB",2,"FSTR",0.,-posfp[1],0.,0,"ONLY");
404 // positioning the central PCB layer
405 gMC->Gspos("FPCB",3,"FSTR",0.,0.,0.,0,"ONLY");
409 //-- MYLAR Layer definition
410 parfp[1] = khmyly*0.5;
411 gMC->Gsvolu("FMYL","BOX",idtmed[511],parfp,3);
412 // positioning 2 MYLAR Layers on FSTR volume
413 posfp[1] = -khstripy*0.5+khhony+khpcby+parfp[1];
414 gMC->Gspos("FMYL",1,"FSTR",0., posfp[1],0.,0,"ONLY");
415 gMC->Gspos("FMYL",2,"FSTR",0.,-posfp[1],0.,0,"ONLY");
416 // adding further 2 MYLAR Layers on FSTR volume
417 posfp[1] = khpcby*0.5+parfp[1];
418 gMC->Gspos("FMYL",3,"FSTR",0., posfp[1],0.,0,"ONLY");
419 gMC->Gspos("FMYL",4,"FSTR",0.,-posfp[1],0.,0,"ONLY");
422 //-- Graphite Layer definition
423 parfp[1] = khgraphy*0.5;
424 gMC->Gsvolu("FGRP","BOX",idtmed[502],parfp,3);
425 // positioning 2 Graphite Layers on FSTR volume
426 posfp[1] = -khstripy*0.5+khhony+khpcby+khmyly+parfp[1];
427 gMC->Gspos("FGRP",1,"FSTR",0., posfp[1],0.,0,"ONLY");
428 gMC->Gspos("FGRP",2,"FSTR",0.,-posfp[1],0.,0,"ONLY");
429 // adding further 2 Graphite Layers on FSTR volume
430 posfp[1] = khpcby*0.5+khmyly+parfp[1];
431 gMC->Gspos("FGRP",3,"FSTR",0., posfp[1],0.,0,"ONLY");
432 gMC->Gspos("FGRP",4,"FSTR",0.,-posfp[1],0.,0,"ONLY");
435 //-- Glass (EXT. +Semi INT.) Layer definition
436 parfp[1] = khglasseiy*0.5;
437 gMC->Gsvolu("FGLA","BOX",idtmed[514],parfp,3);
438 // positioning 2 Glass Layers on FSTR volume
439 posfp[1] = -khstripy*0.5+khhony+khpcby+khmyly+khgraphy+parfp[1];
440 gMC->Gspos("FGLA",1,"FSTR",0., posfp[1],0.,0,"ONLY");
441 gMC->Gspos("FGLA",2,"FSTR",0.,-posfp[1],0.,0,"ONLY");
442 // adding further 2 Glass Layers on FSTR volume
443 posfp[1] = khpcby*0.5+khmyly+khgraphy+parfp[1];
444 gMC->Gspos("FGLA",3,"FSTR",0., posfp[1],0.,0,"ONLY");
445 gMC->Gspos("FGLA",4,"FSTR",0.,-posfp[1],0.,0,"ONLY");
448 //-- Sensitive Mixture Layer definition
449 parfp[0] = klsensmx*0.5;
450 parfp[1] = khsensmy*0.5;
451 parfp[2] = kwsensmz*0.5;
452 gMC->Gsvolu("FSEN","BOX",idtmed[513],parfp,3);
453 gMC->Gsvolu("FNSE","BOX",idtmed[512],parfp,3);
454 // positioning 2 gas Layers on FSTR volume
455 // the upper is insensitive freon
456 // while the remaining is sensitive
457 posfp[1] = khpcby*0.5+khmyly+khgraphy+khglasseiy+parfp[1];
458 gMC->Gspos("FNSE",0,"FSTR", 0., posfp[1],0.,0,"ONLY");
459 gMC->Gspos("FSEN",0,"FSTR", 0.,-posfp[1],0.,0,"ONLY");
461 // dividing FSEN along z in knz=2 and along x in knx=48
462 gMC->Gsdvn("FSEZ","FSEN",knz,3);
463 gMC->Gsdvn("FSEX","FSEZ",knx,1);
465 // FPAD volume definition
466 parfp[0] = klpadx*0.5;
467 parfp[1] = khsensmy*0.5;
468 parfp[2] = kwpadz*0.5;
469 gMC->Gsvolu("FPAD","BOX",idtmed[513],parfp,3);
470 // positioning the FPAD volumes on previous divisions
471 gMC->Gspos("FPAD",0,"FSEX",0.,0.,0.,0,"ONLY");
473 //// Positioning the Strips (FSTR) in the FLT volumes /////
477 Float_t t = zFLTC+zFLTB+zFLTA*0.5+ 2*db;//Half Width of Barrel
479 Float_t gap = fGapA; //cm distance between the strip axis
485 ycoor = -14.5 + kspace ; //2 cm over front plate
487 AliMatrix (idrotm[0], 90., 0.,90.,90.,0., 90.);
488 gMC->Gspos("FSTR",j,"FLTA",0.,ycoor, 0.,idrotm[0],"ONLY");
490 printf("%f, St. %2i, Pl.3 ",ang*kRaddeg,i);
491 printf("y = %f, z = %f, zpos = %f \n",ycoor,zcoor,zpos);
495 Int_t upDown = -1; // upDown=-1 -> Upper strip
496 // upDown=+1 -> Lower strip
498 ang = atan(zcoor/radius);
500 AliMatrix (idrotm[nrot], 90., 0.,90.-ang,90.,-ang, 90.);
501 AliMatrix (idrotm[nrot+1],90.,180.,90.+ang,90., ang, 90.);
503 ycoor = -14.5+ kspace; //2 cm over front plate
504 ycoor += (1-(upDown+1)/2)*gap;
505 gMC->Gspos("FSTR",j ,"FLTA",0.,ycoor, zcoor,idrotm[nrot], "ONLY");
506 gMC->Gspos("FSTR",j+1,"FLTA",0.,ycoor,-zcoor,idrotm[nrot+1],"ONLY");
508 printf("%f, St. %2i, Pl.3 ",ang*kRaddeg,i);
509 printf("y = %f, z = %f, zpos = %f \n",ycoor,zcoor,zpos);
512 upDown*= -1; // Alternate strips
513 zcoor = zcoor-(zSenStrip/2)/TMath::Cos(ang)-
514 upDown*gap*TMath::Tan(ang)-
515 (zSenStrip/2)/TMath::Cos(ang);
516 } while (zcoor-(stripWidth/2)*TMath::Cos(ang)>-t+zFLTC+zFLTB+db*2);
518 zcoor = zcoor+(zSenStrip/2)/TMath::Cos(ang)+
519 upDown*gap*TMath::Tan(ang)+
520 (zSenStrip/2)/TMath::Cos(ang);
523 zcoor = zcoor-(zSenStrip/2)/TMath::Cos(ang)-
524 upDown*gap*TMath::Tan(ang)-
525 (zSenStrip/2)/TMath::Cos(ang);
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.);
533 ycoor = -14.5+ kspace; //2 cm over front plate
534 ycoor += (1-(upDown+1)/2)*gap;
535 gMC->Gspos("FSTR",j ,"FLTA",0.,ycoor, zcoor,idrotm[nrot], "ONLY");
536 gMC->Gspos("FSTR",j+1,"FLTA",0.,ycoor,-zcoor,idrotm[nrot+1],"ONLY");
537 printf("%f, St. %2i, Pl.3 ",ang*kRaddeg,i);
538 printf("y = %f, z = %f, zpos = %f \n",ycoor,zcoor,zpos);
540 ycoor = -hTof/2.+ kspace;//2 cm over front plate
547 Float_t deadRegion = 1.0;//cm
549 zpos = zcoor - (zSenStrip/2)/TMath::Cos(ang)-
550 upDown*gap*TMath::Tan(ang)-
551 (zSenStrip/2)/TMath::Cos(ang)-
552 deadRegion/TMath::Cos(ang);
554 ang = atan(zpos/radius);
556 AliMatrix (idrotm[nrot], 90., 0., 90.-ang,90.,ang, 270.);
558 ycoor = -hTof*0.5+ kspace ; //2 cm over front plate
559 ycoor += (1-(upDown+1)/2)*gap;
560 zcoor = zpos+(zFLTA*0.5+zFLTB*0.5+db); // Moves to the system of the modulus FLTB
561 gMC->Gspos("FSTR",i, "FLTB", 0., ycoor, zcoor,idrotm[nrot], "ONLY");
563 printf("%f, St. %2i, Pl.4 ",ang*kRaddeg,i);
564 printf("y = %f, z = %f, zpos = %f \n",ycoor,zcoor,zpos);
570 zpos = zpos - (zSenStrip/2)/TMath::Cos(ang)-
571 upDown*gap*TMath::Tan(ang)-
572 (zSenStrip/2)/TMath::Cos(ang);
573 ang = atan(zpos/radius);
575 AliMatrix (idrotm[nrot], 90., 0., 90.-ang,90.,ang, 270.);
577 ycoor = -hTof*0.5+ kspace ; //2 cm over front plate
578 ycoor += (1-(upDown+1)/2)*gap;
579 zcoor = zpos+(zFLTA*0.5+zFLTB*0.5+db); // Moves to the system of the modulus FLTB
580 gMC->Gspos("FSTR",i, "FLTB", 0., ycoor, zcoor,idrotm[nrot], "ONLY");
582 printf("%f, St. %2i, Pl.4 ",ang*kRaddeg,i);
583 printf("y = %f, z = %f, zpos = %f \n",ycoor,zcoor,zpos);
587 } while (TMath::Abs(ang*kRaddeg)<22.5);
588 //till we reach a tilting angle of 22.5 degrees
590 ycoor = -hTof*0.5+ kspace ; //2 cm over front plate
591 zpos = zpos - zSenStrip/TMath::Cos(ang);
594 ang = atan(zpos/radius);
596 AliMatrix (idrotm[nrot], 90., 0., 90.-ang,90.,ang, 270.);
598 zcoor = zpos+(zFLTB/2+zFLTA/2+db);
599 gMC->Gspos("FSTR",i, "FLTB", 0., ycoor, zcoor,idrotm[nrot], "ONLY");
600 zpos = zpos - zSenStrip/TMath::Cos(ang);
601 printf("%f, St. %2i, Pl.4 ",ang*kRaddeg,i);
602 printf("y = %f, z = %f, zpos = %f \n",ycoor,zcoor,zpos);
604 } while (zpos-stripWidth*0.5/TMath::Cos(ang)>-t+zFLTC+db);
608 zpos = zpos + zSenStrip/TMath::Cos(ang);
610 zpos = zpos - (zSenStrip/2)/TMath::Cos(ang)+
612 (zSenStrip/2)/TMath::Cos(ang);
616 ycoor= -hTof*0.5+kspace+gap;
620 ang = atan(zpos/radius);
622 AliMatrix (idrotm[nrot], 90., 0., 90.-ang,90.,ang, 270.);
624 zcoor = zpos+(zFLTC*0.5+zFLTB+zFLTA*0.5+db*2);
625 gMC->Gspos("FSTR",i, "FLTC", 0., ycoor, zcoor,idrotm[nrot], "ONLY");
627 printf("%f, St. %2i, Pl.5 ",ang*kRaddeg,i);
628 printf("y = %f, z = %f, zpos = %f \n",ycoor,zcoor,zpos);
630 zpos = zpos - zSenStrip/TMath::Cos(ang);
631 } while (zpos-stripWidth*TMath::Cos(ang)*0.5>-t);
634 ////////// Layers after strips /////////////////
635 // honeycomb (Polyethilene) Layer after (1.2cm)
637 Float_t overSpace = fOverSpc;//cm
641 par[2] = (zFLTA *0.5);
642 ycoor = -yFLT/2 + overSpace + par[1];
643 gMC->Gsvolu("FPEA", "BOX ", idtmed[503], par, 3); // Hony
644 gMC->Gspos ("FPEA", 0, "FLTA", 0., ycoor, 0., 0, "ONLY");
645 par[2] = (zFLTB *0.5);
646 gMC->Gsvolu("FPEB", "BOX ", idtmed[503], par, 3); // Hony
647 gMC->Gspos ("FPEB", 0, "FLTB", 0., ycoor, 0., 0, "ONLY");
648 par[2] = (zFLTC *0.5);
649 gMC->Gsvolu("FPEC", "BOX ", idtmed[503], par, 3); // Hony
650 gMC->Gspos ("FPEC", 0, "FLTC", 0., ycoor, 0., 0, "ONLY");
652 // Electronics (Cu) after
655 par[1] = 1.43*0.05*0.5; // 5% of X0
656 par[2] = (zFLTA *0.5);
658 gMC->Gsvolu("FECA", "BOX ", idtmed[501], par, 3); // Cu
659 gMC->Gspos ("FECA", 0, "FLTA", 0., ycoor, 0., 0, "ONLY");
660 par[2] = (zFLTB *0.5);
661 gMC->Gsvolu("FECB", "BOX ", idtmed[501], par, 3); // Cu
662 gMC->Gspos ("FECB", 0, "FLTB", 0., ycoor, 0., 0, "ONLY");
663 par[2] = (zFLTC *0.5);
664 gMC->Gsvolu("FECC", "BOX ", idtmed[501], par, 3); // Cu
665 gMC->Gspos ("FECC", 0, "FLTC", 0., ycoor, 0., 0, "ONLY");
667 // cooling WAter after
670 par[1] = 36.1*0.02*0.5; // 2% of X0
671 par[2] = (zFLTA *0.5);
673 gMC->Gsvolu("FWAA", "BOX ", idtmed[515], par, 3); // Water
674 gMC->Gspos ("FWAA", 0, "FLTA", 0., ycoor, 0., 0, "ONLY");
675 par[2] = (zFLTB *0.5);
676 gMC->Gsvolu("FWAB", "BOX ", idtmed[515], par, 3); // Water
677 gMC->Gspos ("FWAB", 0, "FLTB", 0., ycoor, 0., 0, "ONLY");
678 par[2] = (zFLTC *0.5);
679 gMC->Gsvolu("FWAC", "BOX ", idtmed[515], par, 3); // Water
680 gMC->Gspos ("FWAC", 0, "FLTC", 0., ycoor, 0., 0, "ONLY");
685 par[1] = (yFLT/2-ycoor-0.2)*0.5; // Aluminum layer considered (0.2 cm)
686 par[2] = (zFLTA *0.5);
688 gMC->Gsvolu("FAIA", "BOX ", idtmed[500], par, 3); // Air
689 gMC->Gspos ("FAIA", 0, "FLTA", 0., ycoor, 0., 0, "ONLY");
690 par[2] = (zFLTB *0.5);
691 gMC->Gsvolu("FAIB", "BOX ", idtmed[500], par, 3); // Air
692 gMC->Gspos ("FAIB", 0, "FLTB", 0., ycoor, 0., 0, "ONLY");
693 par[2] = (zFLTC *0.5);
694 gMC->Gsvolu("FAIC", "BOX ", idtmed[500], par, 3); // Air
695 gMC->Gspos ("FAIC", 0, "FLTC", 0., ycoor, 0., 0, "ONLY");
697 //Back Plate honycomb (2cm)
701 ycoor = yFLT/2 - par[1];
702 gMC->Gsvolu("FBPA", "BOX ", idtmed[503], par, 3); // Hony
703 gMC->Gspos ("FBPA", 0, "FLTA", 0., ycoor, 0., 0, "ONLY");
704 gMC->Gsvolu("FBPB", "BOX ", idtmed[503], par, 3); // Hony
705 gMC->Gspos ("FBPB", 0, "FLTB", 0., ycoor, 0., 0, "ONLY");
706 gMC->Gsvolu("FBPC", "BOX ", idtmed[503], par, 3); // Hony
707 gMC->Gspos ("FBPC", 0, "FLTC", 0., ycoor, 0., 0, "ONLY");
711 //_____________________________________________________________________________
712 void AliTOFv0::DrawModule() const
715 // Draw a shaded view of the Time Of Flight version 0
717 // Set everything unseen
718 gMC->Gsatt("*", "seen", -1);
720 // Set ALIC mother transparent
721 gMC->Gsatt("ALIC","SEEN",0);
723 // Set the volumes visible
724 gMC->Gsatt("ALIC","SEEN",0);
726 gMC->Gsatt("FTOA","SEEN",1);
727 gMC->Gsatt("FTOB","SEEN",1);
728 gMC->Gsatt("FTOC","SEEN",1);
729 gMC->Gsatt("FLTA","SEEN",1);
730 gMC->Gsatt("FLTB","SEEN",1);
731 gMC->Gsatt("FLTC","SEEN",1);
732 gMC->Gsatt("FPLA","SEEN",1);
733 gMC->Gsatt("FPLB","SEEN",1);
734 gMC->Gsatt("FPLC","SEEN",1);
735 gMC->Gsatt("FSTR","SEEN",1);
736 gMC->Gsatt("FPEA","SEEN",1);
737 gMC->Gsatt("FPEB","SEEN",1);
738 gMC->Gsatt("FPEC","SEEN",1);
740 gMC->Gsatt("FLZ1","SEEN",0);
741 gMC->Gsatt("FLZ2","SEEN",0);
742 gMC->Gsatt("FLZ3","SEEN",0);
743 gMC->Gsatt("FLX1","SEEN",0);
744 gMC->Gsatt("FLX2","SEEN",0);
745 gMC->Gsatt("FLX3","SEEN",0);
746 gMC->Gsatt("FPAD","SEEN",0);
748 gMC->Gdopt("hide", "on");
749 gMC->Gdopt("shad", "on");
750 gMC->Gsatt("*", "fill", 7);
751 gMC->SetClipBox(".");
752 gMC->SetClipBox("*", 0, 1000, -1000, 1000, -1000, 1000);
754 gMC->Gdraw("alic", 40, 30, 0, 12, 9.5, .02, .02);
755 gMC->Gdhead(1111, "Time Of Flight");
756 gMC->Gdman(18, 4, "MAN");
757 gMC->Gdopt("hide","off");
759 //_____________________________________________________________________________
760 void AliTOFv0::DrawDetectorModules()
763 // Draw a shaded view of the TOF detector version 0
766 AliMC* pMC = AliMC::GetMC();
768 //Set ALIC mother transparent
769 pMC->Gsatt("ALIC","SEEN",0);
772 //Set volumes visible
775 // Level 1 for TOF volumes
776 gMC->Gsatt("B077","seen",0);
779 //==========> Level 2
781 gMC->Gsatt("B076","seen",-1); // all B076 sub-levels skipped -
782 gMC->Gsatt("B071","seen",0);
783 gMC->Gsatt("B074","seen",0);
784 gMC->Gsatt("B075","seen",0);
785 gMC->Gsatt("B080","seen",0); // B080 does not has sub-level
789 gMC->Gsatt("B063","seen",-1); // all B063 sub-levels skipped -
790 gMC->Gsatt("B065","seen",-1); // all B065 sub-levels skipped -
791 gMC->Gsatt("B067","seen",-1); // all B067 sub-levels skipped -
792 gMC->Gsatt("B069","seen",-1); // all B069 sub-levels skipped -
793 gMC->Gsatt("B056","seen",0); // B056 does not has sub-levels -
794 gMC->Gsatt("B059","seen",-1); // all B059 sub-levels skipped -
795 gMC->Gsatt("B072","seen",-1); // all B072 sub-levels skipped -
796 gMC->Gsatt("BTR1","seen",0); // BTR1 do not have sub-levels -
797 gMC->Gsatt("BTO1","seen",0);
801 gMC->Gsatt("BTR2","seen",0); // BTR2 does not has sub-levels -
802 gMC->Gsatt("BTO2","seen",0);
805 gMC->Gsatt("BTR3","seen",0); // BTR3 do not have sub-levels -
806 gMC->Gsatt("BTO3","seen",0);
808 // ==================> Level 3
809 // Level 3 of B071 / Level 2 of BTO1
810 gMC->Gsatt("FTOC","seen",-2);
811 gMC->Gsatt("FTOB","seen",-2);
812 gMC->Gsatt("FTOA","seen",-2);
814 // Level 3 of B074 / Level 2 of BTO2
815 // -> cfr previous settings
817 // Level 3 of B075 / Level 2 of BTO3
818 // -> cfr previous settings
820 gMC->Gdopt("hide","on");
821 gMC->Gdopt("shad","on");
822 gMC->Gsatt("*", "fill", 5);
823 gMC->SetClipBox(".");
824 gMC->SetClipBox("*", 0, 1000, 0, 1000, 0, 1000);
826 gMC->Gdraw("alic", 45, 40, 0, 10, 10, .015, .015);
827 gMC->Gdhead(1111,"TOF detector V1");
828 gMC->Gdman(18, 4, "MAN");
829 gMC->Gdopt("hide","off");
832 //_____________________________________________________________________________
833 void AliTOFv0::DrawDetectorStrips()
836 // Draw a shaded view of the TOF strips for version 0
839 AliMC* pMC = AliMC::GetMC();
841 //Set ALIC mother transparent
842 pMC->Gsatt("ALIC","SEEN",0);
845 //Set volumes visible
847 // Level 1 for TOF volumes
848 gMC->Gsatt("B077","seen",0);
850 //==========> Level 2
852 gMC->Gsatt("B076","seen",-1); // all B076 sub-levels skipped -
853 gMC->Gsatt("B071","seen",0);
854 gMC->Gsatt("B074","seen",0);
855 gMC->Gsatt("B075","seen",0);
856 gMC->Gsatt("B080","seen",0); // B080 does not has sub-level
859 gMC->Gsatt("B063","seen",-1); // all B063 sub-levels skipped -
860 gMC->Gsatt("B065","seen",-1); // all B065 sub-levels skipped -
861 gMC->Gsatt("B067","seen",-1); // all B067 sub-levels skipped -
862 gMC->Gsatt("B069","seen",-1); // all B069 sub-levels skipped -
863 gMC->Gsatt("B056","seen",0); // B056 does not has sub-levels -
864 gMC->Gsatt("B059","seen",-1); // all B059 sub-levels skipped -
865 gMC->Gsatt("B072","seen",-1); // all B072 sub-levels skipped -
866 gMC->Gsatt("BTR1","seen",0); // BTR1 do not have sub-levels -
867 gMC->Gsatt("BTO1","seen",0);
869 // ==================> Level 3
870 // Level 3 of B071 / Level 2 of BTO1
871 gMC->Gsatt("FTOC","seen",0);
872 gMC->Gsatt("FTOB","seen",0);
873 gMC->Gsatt("FTOA","seen",0);
875 // Level 3 of B074 / Level 2 of BTO2
876 // -> cfr previous settings
878 // Level 3 of B075 / Level 2 of BTO3
879 // -> cfr previous settings
882 // ==========================> Level 4
883 // Level 4 of B071 / Level 3 of BTO1 / Level 2 of FTOC
884 gMC->Gsatt("FLTC","seen",0);
885 // Level 4 of B071 / Level 3 of BTO1 / Level 2 of FTOB
886 gMC->Gsatt("FLTB","seen",0);
887 // Level 4 of B071 / Level 3 of BTO1 / Level 2 of FTOA
888 gMC->Gsatt("FLTA","seen",0);
890 // Level 4 of B074 / Level 3 of BTO2 / Level 2 of FTOC
891 // -> cfr previous settings
892 // Level 4 of B074 / Level 3 of BTO2 / Level 2 of FTOB
893 // -> cfr previous settings
895 // Level 4 of B075 / Level 3 of BTO3 / Level 2 of FTOC
896 // -> cfr previous settings
898 //======================================> Level 5
899 // Level 5 of B071 / Level 4 of BTO1 / Level 3 of FTOC / Level 2 of FLTC
900 gMC->Gsatt("FALC","seen",0); // no children for FALC
901 gMC->Gsatt("FSTR","seen",-2);
902 gMC->Gsatt("FPEC","seen",0); // no children for FPEC
903 gMC->Gsatt("FECC","seen",0); // no children for FECC
904 gMC->Gsatt("FWAC","seen",0); // no children for FWAC
905 gMC->Gsatt("FAIC","seen",0); // no children for FAIC
907 // Level 5 of B071 / Level 4 of BTO1 / Level 3 of FTOB / Level 2 of FLTB
908 gMC->Gsatt("FALB","seen",0); // no children for FALB
909 //--> gMC->Gsatt("FSTR","seen",-2);
912 // -> cfr previous settings
913 gMC->Gsatt("FPEB","seen",0); // no children for FPEB
914 gMC->Gsatt("FECB","seen",0); // no children for FECB
915 gMC->Gsatt("FWAB","seen",0); // no children for FWAB
916 gMC->Gsatt("FAIB","seen",0); // no children for FAIB
918 // Level 5 of B071 / Level 4 of BTO1 / Level 3 of FTOA / Level 2 of FLTA
919 gMC->Gsatt("FALA","seen",0); // no children for FALB
920 //--> gMC->Gsatt("FSTR","seen",-2);
921 // -> cfr previous settings
922 gMC->Gsatt("FPEA","seen",0); // no children for FPEA
923 gMC->Gsatt("FECA","seen",0); // no children for FECA
924 gMC->Gsatt("FWAA","seen",0); // no children for FWAA
925 gMC->Gsatt("FAIA","seen",0); // no children for FAIA
928 gMC->Gsatt("BTR2","seen",0); // BTR2 does not has sub-levels -
929 gMC->Gsatt("BTO2","seen",0);
932 gMC->Gsatt("BTR3","seen",0); // BTR3 do not have sub-levels -
933 gMC->Gsatt("BTO3","seen",0);
935 // for others Level 5, cfr. previous settings
937 gMC->Gdopt("hide","on");
938 gMC->Gdopt("shad","on");
939 gMC->Gsatt("*", "fill", 5);
940 gMC->SetClipBox(".");
941 gMC->SetClipBox("*", 0, 1000, 0, 1000, 0, 1000);
943 gMC->Gdraw("alic", 45, 40, 0, 10, 10, .015, .015);
944 gMC->Gdhead(1111,"TOF Strips V1");
945 gMC->Gdman(18, 4, "MAN");
946 gMC->Gdopt("hide","off");
949 //_____________________________________________________________________________
950 void AliTOFv0::CreateMaterials()
953 // Define materials for the Time Of Flight
955 AliTOF::CreateMaterials();
958 //_____________________________________________________________________________
959 void AliTOFv0::Init()
962 // Initialise the detector after the geometry has been defined
964 printf("**************************************"
966 "**************************************\n");
967 printf("\n Version 0 of TOF initialing, "
968 "symmetric TOF - Full Coverage version\n");
972 fIdFTOA = gMC->VolId("FTOA");
973 fIdFTOB = gMC->VolId("FTOB");
974 fIdFTOC = gMC->VolId("FTOC");
975 fIdFLTA = gMC->VolId("FLTA");
976 fIdFLTB = gMC->VolId("FLTB");
977 fIdFLTC = gMC->VolId("FLTC");
980 printf("%s: **************************************"
982 "**************************************\n",ClassName());
986 //_____________________________________________________________________________
987 void AliTOFv0::StepManager()
990 // Procedure called at each step in the Time Of Flight
992 TLorentzVector mom, pos;
993 Float_t xm[3],pm[3],xpad[3],ppad[3];
994 Float_t hits[13],phi,phid,z;
996 Int_t sector, plate, padx, padz, strip;
997 Int_t copy, padzid, padxid, stripid, i;
998 Int_t *idtmed = fIdtmed->GetArray()-499;
999 Float_t incidenceAngle;
1001 if(gMC->GetMedium()==idtmed[513] &&
1002 gMC->IsTrackEntering() && gMC->TrackCharge()
1003 && gMC->CurrentVolID(copy)==fIdSens)
1005 // getting information about hit volumes
1007 padzid=gMC->CurrentVolOffID(2,copy);
1010 padxid=gMC->CurrentVolOffID(1,copy);
1013 stripid=gMC->CurrentVolOffID(4,copy);
1016 gMC->TrackPosition(pos);
1017 gMC->TrackMomentum(mom);
1019 // Double_t NormPos=1./pos.Rho();
1020 Double_t normMom=1./mom.Rho();
1022 // getting the cohordinates in pad ref system
1023 xm[0] = (Float_t)pos.X();
1024 xm[1] = (Float_t)pos.Y();
1025 xm[2] = (Float_t)pos.Z();
1027 pm[0] = (Float_t)mom.X()*normMom;
1028 pm[1] = (Float_t)mom.Y()*normMom;
1029 pm[2] = (Float_t)mom.Z()*normMom;
1031 gMC->Gmtod(xm,xpad,1);
1032 gMC->Gmtod(pm,ppad,2);
1034 incidenceAngle = TMath::ACos(ppad[1])*kRaddeg;
1039 if (TMath::Abs(z) <= fZlenA*0.5) plate = 3;
1040 if (z < (fZlenA*0.5+fZlenB) &&
1041 z > fZlenA*0.5) plate = 4;
1042 if (z >-(fZlenA*0.5+fZlenB) &&
1043 z < -fZlenA*0.5) plate = 2;
1044 if (z > (fZlenA*0.5+fZlenB)) plate = 5;
1045 if (z <-(fZlenA*0.5+fZlenB)) plate = 1;
1048 phid = phi*kRaddeg+180.;
1049 sector = Int_t (phid/20.);
1057 hits[6] = mom.Rho();
1062 hits[11]= incidenceAngle;
1063 hits[12]= gMC->Edep();
1071 AddHit(gAlice->CurrentTrack(),vol, hits);