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 1.29 2002/10/22 14:26:28 alibrary
19 Introducing Riostream.h
21 Revision 1.28 2002/10/14 14:57:42 hristov
22 Merging the VirtualMC branch to the main development branch (HEAD)
24 Revision 1.25.6.4 2002/10/11 10:56:40 hristov
25 Updating VirtualMC to v3-09-02
27 Revision 1.27 2002/07/24 16:13:56 vicinanz
28 Fixed bub in BuildGeometry
30 Revision 1.26 2002/05/08 13:24:50 vicinanz
31 AliTOFanalyzeMatching.C macro added and minor changes to the AliTOF code
33 Revision 1.25 2001/11/22 11:22:51 hristov
34 Updated version of TOF digitization, N^2 problem solved (J.Chudoba)
36 Revision 1.23 2001/09/27 10:39:20 vicinanz
37 SDigitizer and Merger added
39 Revision 1.22 2001/09/20 15:54:22 vicinanz
40 Updated Strip Structure (Double Stack)
42 Revision 1.21 2001/08/28 08:45:59 vicinanz
43 TTask and TFolder structures implemented
45 Revision 1.9 2001/05/04 10:09:48 vicinanz
46 Major upgrades to the strip structure
48 Revision 1.8 2000/12/04 08:48:20 alibrary
49 Fixing problems in the HEAD
51 Revision 1.7 2000/10/02 21:28:17 fca
52 Removal of useless dependecies via forward declarations
54 Revision 1.6 2000/05/10 16:52:18 vicinanz
55 New TOF version with holes for PHOS/RICH
57 Revision 1.4.2.1 2000/05/10 09:37:16 vicinanz
58 New version with Holes for PHOS/RICH
60 Revision 1.14 1999/11/05 22:39:06 fca
63 Revision 1.13 1999/11/02 11:26:39 fca
64 added stdlib.h for exit
66 Revision 1.12 1999/11/01 20:41:57 fca
67 Added protections against using the wrong version of FRAME
69 Revision 1.11 1999/10/22 08:04:14 fca
70 Correct improper use of negative parameters
72 Revision 1.10 1999/10/16 19:30:06 fca
73 Corrected Rotation Matrix and CVS log
75 Revision 1.9 1999/10/15 15:35:20 fca
76 New version for frame1099 with and without holes
78 Revision 1.8 1999/09/29 09:24:33 fca
79 Introduction of the Copyright and cvs Log
83 ///////////////////////////////////////////////////////////////////////////////
85 // This class contains the functions for version 0 of the Time Of Flight //
88 // VERSION WITH 5 MODULES AND TILTED STRIPS
89 // NO HITS DEFINED BY DEFAULT FOR THIS VERSION
90 // FULL COVERAGE VERSION
97 // University of Salerno - Italy
100 // University of Bologna - Italy
105 <img src="picts/AliTOFv0Class.gif">
109 ///////////////////////////////////////////////////////////////////////////////
111 #include <Riostream.h>
114 #include "AliTOFv0.h"
116 #include "TGeometry.h"
118 #include <TLorentzVector.h>
121 #include "AliConst.h"
126 //_____________________________________________________________________________
130 // Default constructor
134 //_____________________________________________________________________________
135 AliTOFv0::AliTOFv0(const char *name, const char *title)
139 // Standard constructor
142 // Check that FRAME is there otherwise we have no place where to
144 AliModule* frame=gAlice->GetModule("FRAME");
146 Error("Ctor","TOF needs FRAME to be present\n");
149 if(frame->IsVersion()!=1) {
150 Error("Ctor","FRAME version 1 needed with this version of TOF\n");
156 //____________________________________________________________________________
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 offset for nodes
178 Float_t zOffsetC = fZtof - fZlenC*0.5;
179 Float_t zOffsetB = fZtof - fZlenC - fZlenB*0.5;
180 Float_t zOffsetA = 0.;
181 // Define TOF basic volume
183 char nodeName0[7], nodeName1[7], nodeName2[7];
184 char nodeName3[7], nodeName4[7], rotMatNum[7];
186 new TBRIK("S_TOF_C","TOF box","void",
187 fStripLn*0.5,khTof*0.5,fZlenC*0.5);
188 new TBRIK("S_TOF_B","TOF box","void",
189 fStripLn*0.5,khTof*0.5,fZlenB*0.5);
190 new TBRIK("S_TOF_A","TOF box","void",
191 fStripLn*0.5,khTof*0.5,fZlenA*0.5);
193 for (Int_t nodeNum=1;nodeNum<19;nodeNum++){
196 sprintf(rotMatNum,"rot50%i",nodeNum);
197 sprintf(nodeName0,"FTO00%i",nodeNum);
198 sprintf(nodeName1,"FTO10%i",nodeNum);
199 sprintf(nodeName2,"FTO20%i",nodeNum);
200 sprintf(nodeName3,"FTO30%i",nodeNum);
201 sprintf(nodeName4,"FTO40%i",nodeNum);
204 sprintf(rotMatNum,"rot5%i",nodeNum);
205 sprintf(nodeName0,"FTO0%i",nodeNum);
206 sprintf(nodeName1,"FTO1%i",nodeNum);
207 sprintf(nodeName2,"FTO2%i",nodeNum);
208 sprintf(nodeName3,"FTO3%i",nodeNum);
209 sprintf(nodeName4,"FTO4%i",nodeNum);
212 new TRotMatrix(rotMatNum,rotMatNum,90,-20*nodeNum,90,90-20*nodeNum,0,0);
213 ang = (4.5-nodeNum) * kangle;
216 node = new TNode(nodeName0,nodeName0,"S_TOF_C",krTof*TMath::Cos(ang),krTof*TMath::Sin(ang),zOffsetC,rotMatNum);
217 node->SetLineColor(kColorTOF);
221 node = new TNode(nodeName1,nodeName1,"S_TOF_C",krTof*TMath::Cos(ang),krTof*TMath::Sin(ang),-zOffsetC,rotMatNum);
222 node->SetLineColor(kColorTOF);
226 node = new TNode(nodeName2,nodeName2,"S_TOF_B",krTof*TMath::Cos(ang),krTof*TMath::Sin(ang),zOffsetB,rotMatNum);
227 node->SetLineColor(kColorTOF);
231 node = new TNode(nodeName3,nodeName3,"S_TOF_B",krTof*TMath::Cos(ang),krTof*TMath::Sin(ang),-zOffsetB,rotMatNum);
232 node->SetLineColor(kColorTOF);
236 node = new TNode(nodeName4,nodeName4,"S_TOF_A",krTof*TMath::Cos(ang),krTof*TMath::Sin(ang),zOffsetA,rotMatNum);
237 node->SetLineColor(kColorTOF);
239 } // end loop on nodeNum
244 //_____________________________________________________________________________
245 void AliTOFv0::CreateGeometry()
248 // Create geometry for Time Of Flight version 0
252 <img src="picts/AliTOFv0.gif">
256 // Creates common geometry
258 AliTOF::CreateGeometry();
261 //_____________________________________________________________________________
262 void AliTOFv0::TOFpc(Float_t xtof, Float_t ytof, Float_t zlenC,
263 Float_t zlenB, Float_t zlenA, Float_t ztof0)
266 // Definition of the Time Of Fligh Resistive Plate Chambers
267 // xFLT, yFLT, zFLT - sizes of TOF modules (large)
269 Float_t ycoor, zcoor;
271 Int_t *idtmed = fIdtmed->GetArray()-499;
274 Float_t hTof = fRmax-fRmin;
276 Float_t radius = fRmin+2.;//cm
280 par[2] = zlenC * 0.5;
281 gMC->Gsvolu("FTOC", "BOX ", idtmed[506], par, 3);
282 par[2] = zlenB * 0.5;
283 gMC->Gsvolu("FTOB", "BOX ", idtmed[506], par, 3);
284 par[2] = zlenA * 0.5;
285 gMC->Gsvolu("FTOA", "BOX ", idtmed[506], par, 3);
288 // Positioning of modules
290 Float_t zcor1 = ztof0 - zlenC*0.5;
291 Float_t zcor2 = ztof0 - zlenC - zlenB*0.5;
294 AliMatrix(idrotm[0], 90., 0., 0., 0., 90,-90.);
295 AliMatrix(idrotm[1], 90.,180., 0., 0., 90, 90.);
296 gMC->Gspos("FTOC", 1, "BTO1", 0, zcor1, 0, idrotm[0], "ONLY");
297 gMC->Gspos("FTOC", 2, "BTO1", 0, -zcor1, 0, idrotm[1], "ONLY");
298 gMC->Gspos("FTOC", 1, "BTO2", 0, zcor1, 0, idrotm[0], "ONLY");
299 gMC->Gspos("FTOC", 2, "BTO2", 0, -zcor1, 0, idrotm[1], "ONLY");
300 gMC->Gspos("FTOC", 1, "BTO3", 0, zcor1, 0, idrotm[0], "ONLY");
301 gMC->Gspos("FTOC", 2, "BTO3", 0, -zcor1, 0, idrotm[1], "ONLY");
303 gMC->Gspos("FTOB", 1, "BTO1", 0, zcor2, 0, idrotm[0], "ONLY");
304 gMC->Gspos("FTOB", 2, "BTO1", 0, -zcor2, 0, idrotm[1], "ONLY");
305 gMC->Gspos("FTOB", 1, "BTO2", 0, zcor2, 0, idrotm[0], "ONLY");
306 gMC->Gspos("FTOB", 2, "BTO2", 0, -zcor2, 0, idrotm[1], "ONLY");
307 gMC->Gspos("FTOB", 1, "BTO3", 0, zcor2, 0, idrotm[0], "ONLY");
308 gMC->Gspos("FTOB", 2, "BTO3", 0, -zcor2, 0, idrotm[1], "ONLY");
310 gMC->Gspos("FTOA", 0, "BTO1", 0, zcor3, 0, idrotm[0], "ONLY");
311 gMC->Gspos("FTOA", 0, "BTO2", 0, zcor3, 0, idrotm[0], "ONLY");
312 gMC->Gspos("FTOA", 0, "BTO3", 0, zcor3, 0, idrotm[0], "ONLY");
314 Float_t db = 0.5;//cm
315 Float_t xFLT, xFST, yFLT, zFLTA, zFLTB, zFLTC;
323 xFST = xFLT-fDeadBndX*2;//cm
325 // Sizes of MRPC pads
327 Float_t yPad = 0.505;//cm
329 // Large not sensitive volumes with Insensitive Freon
333 cout <<"************************* TOF geometry **************************"<<endl;
335 par[2] = (zFLTA *0.5);
336 gMC->Gsvolu("FLTA", "BOX ", idtmed[512], par, 3); // Insensitive Freon
337 gMC->Gspos ("FLTA", 0, "FTOA", 0., 0., 0., 0, "ONLY");
339 par[2] = (zFLTB * 0.5);
340 gMC->Gsvolu("FLTB", "BOX ", idtmed[512], par, 3); // Insensitive Freon
341 gMC->Gspos ("FLTB", 0, "FTOB", 0., 0., 0., 0, "ONLY");
343 par[2] = (zFLTC * 0.5);
344 gMC->Gsvolu("FLTC", "BOX ", idtmed[512], par, 3); // Insensitive Freon
345 gMC->Gspos ("FLTC", 0, "FTOC", 0., 0., 0., 0, "ONLY");
347 ////////// Layers of Aluminum before and after detector //////////
348 ////////// Aluminum Box for Modules (2.0 mm thickness) /////////
349 ////////// lateral walls not simulated
352 ycoor = -yFLT/2 + par[1];
353 par[2] = (zFLTA *0.5);
354 gMC->Gsvolu("FALA", "BOX ", idtmed[508], par, 3); // Alluminium
355 gMC->Gspos ("FALA", 1, "FLTA", 0., ycoor, 0., 0, "ONLY");
356 gMC->Gspos ("FALA", 2, "FLTA", 0.,-ycoor, 0., 0, "ONLY");
357 par[2] = (zFLTB *0.5);
358 gMC->Gsvolu("FALB", "BOX ", idtmed[508], par, 3); // Alluminium
359 gMC->Gspos ("FALB", 1, "FLTB", 0., ycoor, 0., 0, "ONLY");
360 gMC->Gspos ("FALB", 2, "FLTB", 0.,-ycoor, 0., 0, "ONLY");
361 par[2] = (zFLTC *0.5);
362 gMC->Gsvolu("FALC", "BOX ", idtmed[508], par, 3); // Alluminium
363 gMC->Gspos ("FALC", 1, "FLTC", 0., ycoor, 0., 0, "ONLY");
364 gMC->Gspos ("FALC", 2, "FLTC", 0.,-ycoor, 0., 0, "ONLY");
366 ///////////////// Detector itself //////////////////////
367 const Float_t kdeadBound = fDeadBndZ; //cm non-sensitive between the pad edge
368 //and the boundary of the strip
369 const Int_t knx = fNpadX; // number of pads along x
370 const Int_t knz = fNpadZ; // number of pads along z
371 const Float_t kspace = fSpace; //cm distance from the front plate of the box
373 Float_t zSenStrip = fZpad*fNpadZ;//cm
374 Float_t stripWidth = zSenStrip + 2*kdeadBound;
377 par[2] = stripWidth*0.5;
379 // new description for strip volume -double stack strip-
380 // -- all constants are expressed in cm
381 // heigth of different layers
382 const Float_t khhony = 1. ; // heigth of HONY Layer
383 const Float_t khpcby = 0.15 ; // heigth of PCB Layer
384 const Float_t khmyly = 0.035 ; // heigth of MYLAR Layer
385 const Float_t khgraphy = 0.02 ; // heigth of GRAPHITE Layer
386 const Float_t khglasseiy = 0.17; // 0.6 Ext. Glass + 1.1 i.e. (Int. Glass/2) (mm)
387 const Float_t khsensmy = 0.11 ; // heigth of Sensitive Freon Mixture
388 const Float_t kwsensmz = 2*3.5 ; // cm
389 const Float_t klsensmx = 48*2.5; // cm
390 const Float_t kwpadz = 3.5; // cm z dimension of the FPAD volume
391 const Float_t klpadx = 2.5; // cm x dimension of the FPAD volume
393 // heigth of the FSTR Volume (the strip volume)
394 const Float_t khstripy = 2*khhony+3*khpcby+4*(khmyly+khgraphy+khglasseiy)+2*khsensmy;
395 // width of the FSTR Volume (the strip volume)
396 const Float_t kwstripz = 10.;
397 // length of the FSTR Volume (the strip volume)
398 const Float_t klstripx = 122.;
400 Float_t parfp[3]={klstripx*0.5,khstripy*0.5,kwstripz*0.5};
401 // coordinates of the strip center in the strip reference frame; used for positioning
402 // internal strip volumes
403 Float_t posfp[3]={0.,0.,0.};
406 // FSTR volume definition and filling this volume with non sensitive Gas Mixture
407 gMC->Gsvolu("FSTR","BOX",idtmed[512],parfp,3);
408 //-- HONY Layer definition
410 parfp[1] = khhony*0.5;
412 gMC->Gsvolu("FHON","BOX",idtmed[503],parfp,3);
413 // positioning 2 HONY Layers on FSTR volume
415 posfp[1]=-khstripy*0.5+parfp[1];
416 gMC->Gspos("FHON",1,"FSTR",0., posfp[1],0.,0,"ONLY");
417 gMC->Gspos("FHON",2,"FSTR",0.,-posfp[1],0.,0,"ONLY");
419 //-- PCB Layer definition
420 parfp[1] = khpcby*0.5;
421 gMC->Gsvolu("FPCB","BOX",idtmed[504],parfp,3);
422 // positioning 2 PCB Layers on FSTR volume
423 posfp[1]=-khstripy*0.5+khhony+parfp[1];
424 gMC->Gspos("FPCB",1,"FSTR",0., posfp[1],0.,0,"ONLY");
425 gMC->Gspos("FPCB",2,"FSTR",0.,-posfp[1],0.,0,"ONLY");
426 // positioning the central PCB layer
427 gMC->Gspos("FPCB",3,"FSTR",0.,0.,0.,0,"ONLY");
431 //-- MYLAR Layer definition
432 parfp[1] = khmyly*0.5;
433 gMC->Gsvolu("FMYL","BOX",idtmed[511],parfp,3);
434 // positioning 2 MYLAR Layers on FSTR volume
435 posfp[1] = -khstripy*0.5+khhony+khpcby+parfp[1];
436 gMC->Gspos("FMYL",1,"FSTR",0., posfp[1],0.,0,"ONLY");
437 gMC->Gspos("FMYL",2,"FSTR",0.,-posfp[1],0.,0,"ONLY");
438 // adding further 2 MYLAR Layers on FSTR volume
439 posfp[1] = khpcby*0.5+parfp[1];
440 gMC->Gspos("FMYL",3,"FSTR",0., posfp[1],0.,0,"ONLY");
441 gMC->Gspos("FMYL",4,"FSTR",0.,-posfp[1],0.,0,"ONLY");
444 //-- Graphite Layer definition
445 parfp[1] = khgraphy*0.5;
446 gMC->Gsvolu("FGRP","BOX",idtmed[502],parfp,3);
447 // positioning 2 Graphite Layers on FSTR volume
448 posfp[1] = -khstripy*0.5+khhony+khpcby+khmyly+parfp[1];
449 gMC->Gspos("FGRP",1,"FSTR",0., posfp[1],0.,0,"ONLY");
450 gMC->Gspos("FGRP",2,"FSTR",0.,-posfp[1],0.,0,"ONLY");
451 // adding further 2 Graphite Layers on FSTR volume
452 posfp[1] = khpcby*0.5+khmyly+parfp[1];
453 gMC->Gspos("FGRP",3,"FSTR",0., posfp[1],0.,0,"ONLY");
454 gMC->Gspos("FGRP",4,"FSTR",0.,-posfp[1],0.,0,"ONLY");
457 //-- Glass (EXT. +Semi INT.) Layer definition
458 parfp[1] = khglasseiy*0.5;
459 gMC->Gsvolu("FGLA","BOX",idtmed[514],parfp,3);
460 // positioning 2 Glass Layers on FSTR volume
461 posfp[1] = -khstripy*0.5+khhony+khpcby+khmyly+khgraphy+parfp[1];
462 gMC->Gspos("FGLA",1,"FSTR",0., posfp[1],0.,0,"ONLY");
463 gMC->Gspos("FGLA",2,"FSTR",0.,-posfp[1],0.,0,"ONLY");
464 // adding further 2 Glass Layers on FSTR volume
465 posfp[1] = khpcby*0.5+khmyly+khgraphy+parfp[1];
466 gMC->Gspos("FGLA",3,"FSTR",0., posfp[1],0.,0,"ONLY");
467 gMC->Gspos("FGLA",4,"FSTR",0.,-posfp[1],0.,0,"ONLY");
470 //-- Sensitive Mixture Layer definition
471 parfp[0] = klsensmx*0.5;
472 parfp[1] = khsensmy*0.5;
473 parfp[2] = kwsensmz*0.5;
474 gMC->Gsvolu("FSEN","BOX",idtmed[513],parfp,3);
475 gMC->Gsvolu("FNSE","BOX",idtmed[512],parfp,3);
476 // positioning 2 gas Layers on FSTR volume
477 // the upper is insensitive freon
478 // while the remaining is sensitive
479 posfp[1] = khpcby*0.5+khmyly+khgraphy+khglasseiy+parfp[1];
480 gMC->Gspos("FNSE",0,"FSTR", 0., posfp[1],0.,0,"ONLY");
481 gMC->Gspos("FSEN",0,"FSTR", 0.,-posfp[1],0.,0,"ONLY");
483 // dividing FSEN along z in knz=2 and along x in knx=48
484 gMC->Gsdvn("FSEZ","FSEN",knz,3);
485 gMC->Gsdvn("FSEX","FSEZ",knx,1);
487 // FPAD volume definition
488 parfp[0] = klpadx*0.5;
489 parfp[1] = khsensmy*0.5;
490 parfp[2] = kwpadz*0.5;
491 gMC->Gsvolu("FPAD","BOX",idtmed[513],parfp,3);
492 // positioning the FPAD volumes on previous divisions
493 gMC->Gspos("FPAD",0,"FSEX",0.,0.,0.,0,"ONLY");
495 //// Positioning the Strips (FSTR) in the FLT volumes /////
499 Float_t t = zFLTC+zFLTB+zFLTA*0.5+ 2*db;//Half Width of Barrel
501 Float_t gap = fGapA+0.5; //cm updated distance between the strip axis
507 ycoor = -14.5 + kspace ; //2 cm over front plate
509 AliMatrix (idrotm[0], 90., 0.,90.,90.,0., 90.);
510 gMC->Gspos("FSTR",j,"FLTA",0.,ycoor, 0.,idrotm[0],"ONLY");
512 printf("%f, St. %2i, Pl.3 ",ang*kRaddeg,i);
513 printf("y = %f, z = %f, zpos = %f \n",ycoor,zcoor,zpos);
517 Int_t upDown = -1; // upDown=-1 -> Upper strip
518 // upDown=+1 -> Lower strip
520 ang = atan(zcoor/radius);
522 AliMatrix (idrotm[nrot], 90., 0.,90.-ang,90.,-ang, 90.);
523 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");
530 printf("%f, St. %2i, Pl.3 ",ang*kRaddeg,i);
531 printf("y = %f, z = %f, zpos = %f \n",ycoor,zcoor,zpos);
534 upDown*= -1; // Alternate strips
535 zcoor = zcoor-(zSenStrip/2)/TMath::Cos(ang)-
536 upDown*gap*TMath::Tan(ang)-
537 (zSenStrip/2)/TMath::Cos(ang);
538 } while (zcoor-(stripWidth/2)*TMath::Cos(ang)>-t+zFLTC+zFLTB+db*2);
540 zcoor = zcoor+(zSenStrip/2)/TMath::Cos(ang)+
541 upDown*gap*TMath::Tan(ang)+
542 (zSenStrip/2)/TMath::Cos(ang);
545 zcoor = zcoor-(zSenStrip/2)/TMath::Cos(ang)-
546 upDown*gap*TMath::Tan(ang)-
547 (zSenStrip/2)/TMath::Cos(ang);
549 ang = atan(zcoor/radius);
551 AliMatrix (idrotm[nrot], 90., 0.,90.-ang,90.,-ang, 90.);
552 AliMatrix (idrotm[nrot+1],90.,180.,90.+ang,90., ang, 90.);
555 ycoor = -14.5+ kspace; //2 cm over front plate
556 ycoor += (1-(upDown+1)/2)*gap;
557 gMC->Gspos("FSTR",j ,"FLTA",0.,ycoor, zcoor,idrotm[nrot], "ONLY");
558 gMC->Gspos("FSTR",j+1,"FLTA",0.,ycoor,-zcoor,idrotm[nrot+1],"ONLY");
559 printf("%f, St. %2i, Pl.3 ",ang*kRaddeg,i);
560 printf("y = %f, z = %f, zpos = %f \n",ycoor,zcoor,zpos);
562 ycoor = -hTof/2.+ kspace;//2 cm over front plate
569 Float_t deadRegion = 1.0;//cm
571 zpos = zcoor - (zSenStrip/2)/TMath::Cos(ang)-
572 upDown*gap*TMath::Tan(ang)-
573 (zSenStrip/2)/TMath::Cos(ang)-
574 deadRegion/TMath::Cos(ang);
576 ang = atan(zpos/radius);
578 AliMatrix (idrotm[nrot], 90., 0., 90.-ang,90.,ang, 270.);
580 ycoor = -hTof*0.5+ kspace ; //2 cm over front plate
581 ycoor += (1-(upDown+1)/2)*gap;
582 zcoor = zpos+(zFLTA*0.5+zFLTB*0.5+db); // Moves to the system of the modulus FLTB
583 gMC->Gspos("FSTR",i, "FLTB", 0., ycoor, zcoor,idrotm[nrot], "ONLY");
585 printf("%f, St. %2i, Pl.4 ",ang*kRaddeg,i);
586 printf("y = %f, z = %f, zpos = %f \n",ycoor,zcoor,zpos);
592 zpos = zpos - (zSenStrip/2)/TMath::Cos(ang)-
593 upDown*gap*TMath::Tan(ang)-
594 (zSenStrip/2)/TMath::Cos(ang);
595 ang = atan(zpos/radius);
597 AliMatrix (idrotm[nrot], 90., 0., 90.-ang,90.,ang, 270.);
599 Float_t deltaSpaceinB=-0.5; // [cm] to avoid overlaps with the end of freon frame
600 Float_t deltaGapinB=0.5; // [cm] to avoid overlaps in between initial strips
601 ycoor = -hTof*0.5+ kspace+deltaSpaceinB ; //2 cm over front plate
602 ycoor += (1-(upDown+1)/2)*(gap+deltaGapinB);
603 zcoor = zpos+(zFLTA*0.5+zFLTB*0.5+db); // Moves to the system of the modulus FLTB
604 gMC->Gspos("FSTR",i, "FLTB", 0., ycoor, zcoor,idrotm[nrot], "ONLY");
606 printf("%f, St. %2i, Pl.4 ",ang*kRaddeg,i);
607 printf("y = %f, z = %f, zpos = %f \n",ycoor,zcoor,zpos);
611 } while (TMath::Abs(ang*kRaddeg)<22.5);
612 //till we reach a tilting angle of 22.5 degrees
614 ycoor = -hTof*0.5+ kspace ; //2 cm over front plate
615 zpos = zpos - zSenStrip/TMath::Cos(ang);
616 // this avoid overlaps in between outer strips in plate B
617 Float_t deltaMovingUp=0.8; // [cm]
618 Float_t deltaMovingDown=-0.5; // [cm]
621 ang = atan(zpos/radius);
623 AliMatrix (idrotm[nrot], 90., 0., 90.-ang,90.,ang, 270.);
625 zcoor = zpos+(zFLTB/2+zFLTA/2+db);
626 gMC->Gspos("FSTR",i, "FLTB", 0., ycoor+deltaMovingDown+deltaMovingUp, zcoor,idrotm[nrot], "ONLY");
627 deltaMovingUp+=0.8; // update delta moving toward the end of the plate
628 zpos = zpos - zSenStrip/TMath::Cos(ang);
629 printf("%f, St. %2i, Pl.4 ",ang*kRaddeg,i);
630 printf("y = %f, z = %f, zpos = %f \n",ycoor,zcoor,zpos);
632 } while (zpos-stripWidth*0.5/TMath::Cos(ang)>-t+zFLTC+db);
636 zpos = zpos + zSenStrip/TMath::Cos(ang);
638 zpos = zpos - (zSenStrip/2)/TMath::Cos(ang)+
640 (zSenStrip/2)/TMath::Cos(ang);
644 Float_t deltaGap=-2.5; // [cm] update distance from strip center and plate
645 ycoor= -hTof*0.5+kspace+gap+deltaGap;
649 ang = atan(zpos/radius);
651 AliMatrix (idrotm[nrot], 90., 0., 90.-ang,90.,ang, 270.);
653 zcoor = zpos+(zFLTC*0.5+zFLTB+zFLTA*0.5+db*2);
654 gMC->Gspos("FSTR",i, "FLTC", 0., ycoor, zcoor,idrotm[nrot], "ONLY");
656 printf("%f, St. %2i, Pl.5 ",ang*kRaddeg,i);
657 printf("y = %f, z = %f, zpos = %f \n",ycoor,zcoor,zpos);
659 zpos = zpos - zSenStrip/TMath::Cos(ang);
660 } while (zpos-stripWidth*TMath::Cos(ang)*0.5>-t);
663 ////////// Layers after strips /////////////////
664 // honeycomb (Polyethilene) Layer after (1.2cm)
666 Float_t overSpace = fOverSpc;//cm
670 par[2] = (zFLTA *0.5);
671 ycoor = -yFLT/2 + overSpace + par[1];
672 gMC->Gsvolu("FPEA", "BOX ", idtmed[503], par, 3); // Hony
673 gMC->Gspos ("FPEA", 0, "FLTA", 0., ycoor, 0., 0, "ONLY");
674 par[2] = (zFLTB *0.5);
675 gMC->Gsvolu("FPEB", "BOX ", idtmed[503], par, 3); // Hony
676 gMC->Gspos ("FPEB", 0, "FLTB", 0., ycoor, 0., 0, "ONLY");
677 par[2] = (zFLTC *0.5);
678 gMC->Gsvolu("FPEC", "BOX ", idtmed[503], par, 3); // Hony
679 gMC->Gspos ("FPEC", 0, "FLTC", 0., ycoor, 0., 0, "ONLY");
681 // Electronics (Cu) after
684 par[1] = 1.43*0.05*0.5; // 5% of X0
685 par[2] = (zFLTA *0.5);
687 gMC->Gsvolu("FECA", "BOX ", idtmed[501], par, 3); // Cu
688 gMC->Gspos ("FECA", 0, "FLTA", 0., ycoor, 0., 0, "ONLY");
689 par[2] = (zFLTB *0.5);
690 gMC->Gsvolu("FECB", "BOX ", idtmed[501], par, 3); // Cu
691 gMC->Gspos ("FECB", 0, "FLTB", 0., ycoor, 0., 0, "ONLY");
692 par[2] = (zFLTC *0.5);
693 gMC->Gsvolu("FECC", "BOX ", idtmed[501], par, 3); // Cu
694 gMC->Gspos ("FECC", 0, "FLTC", 0., ycoor, 0., 0, "ONLY");
696 // cooling WAter after
699 par[1] = 36.1*0.02*0.5; // 2% of X0
700 par[2] = (zFLTA *0.5);
702 gMC->Gsvolu("FWAA", "BOX ", idtmed[515], par, 3); // Water
703 gMC->Gspos ("FWAA", 0, "FLTA", 0., ycoor, 0., 0, "ONLY");
704 par[2] = (zFLTB *0.5);
705 gMC->Gsvolu("FWAB", "BOX ", idtmed[515], par, 3); // Water
706 gMC->Gspos ("FWAB", 0, "FLTB", 0., ycoor, 0., 0, "ONLY");
707 par[2] = (zFLTC *0.5);
708 gMC->Gsvolu("FWAC", "BOX ", idtmed[515], par, 3); // Water
709 gMC->Gspos ("FWAC", 0, "FLTC", 0., ycoor, 0., 0, "ONLY");
714 par[1] = (yFLT/2-ycoor-0.2)*0.5; // Aluminum layer considered (0.2 cm)
715 par[2] = (zFLTA *0.5);
717 gMC->Gsvolu("FAIA", "BOX ", idtmed[500], par, 3); // Air
718 gMC->Gspos ("FAIA", 0, "FLTA", 0., ycoor, 0., 0, "ONLY");
719 par[2] = (zFLTB *0.5);
720 gMC->Gsvolu("FAIB", "BOX ", idtmed[500], par, 3); // Air
721 gMC->Gspos ("FAIB", 0, "FLTB", 0., ycoor, 0., 0, "ONLY");
722 par[2] = (zFLTC *0.5);
723 gMC->Gsvolu("FAIC", "BOX ", idtmed[500], par, 3); // Air
724 gMC->Gspos ("FAIC", 0, "FLTC", 0., ycoor, 0., 0, "ONLY");
726 //Back Plate honycomb (2cm)
730 ycoor = yFLT/2 - par[1];
731 gMC->Gsvolu("FBPA", "BOX ", idtmed[503], par, 3); // Hony
732 gMC->Gspos ("FBPA", 0, "FLTA", 0., ycoor, 0., 0, "ONLY");
733 gMC->Gsvolu("FBPB", "BOX ", idtmed[503], par, 3); // Hony
734 gMC->Gspos ("FBPB", 0, "FLTB", 0., ycoor, 0., 0, "ONLY");
735 gMC->Gsvolu("FBPC", "BOX ", idtmed[503], par, 3); // Hony
736 gMC->Gspos ("FBPC", 0, "FLTC", 0., ycoor, 0., 0, "ONLY");
740 //_____________________________________________________________________________
741 void AliTOFv0::DrawModule() const
744 // Draw a shaded view of the Time Of Flight version 0
746 // Set everything unseen
747 gMC->Gsatt("*", "seen", -1);
749 // Set ALIC mother transparent
750 gMC->Gsatt("ALIC","SEEN",0);
752 // Set the volumes visible
753 gMC->Gsatt("ALIC","SEEN",0);
755 gMC->Gsatt("FTOA","SEEN",1);
756 gMC->Gsatt("FTOB","SEEN",1);
757 gMC->Gsatt("FTOC","SEEN",1);
758 gMC->Gsatt("FLTA","SEEN",1);
759 gMC->Gsatt("FLTB","SEEN",1);
760 gMC->Gsatt("FLTC","SEEN",1);
761 gMC->Gsatt("FPLA","SEEN",1);
762 gMC->Gsatt("FPLB","SEEN",1);
763 gMC->Gsatt("FPLC","SEEN",1);
764 gMC->Gsatt("FSTR","SEEN",1);
765 gMC->Gsatt("FPEA","SEEN",1);
766 gMC->Gsatt("FPEB","SEEN",1);
767 gMC->Gsatt("FPEC","SEEN",1);
769 gMC->Gsatt("FLZ1","SEEN",0);
770 gMC->Gsatt("FLZ2","SEEN",0);
771 gMC->Gsatt("FLZ3","SEEN",0);
772 gMC->Gsatt("FLX1","SEEN",0);
773 gMC->Gsatt("FLX2","SEEN",0);
774 gMC->Gsatt("FLX3","SEEN",0);
775 gMC->Gsatt("FPAD","SEEN",0);
777 gMC->Gdopt("hide", "on");
778 gMC->Gdopt("shad", "on");
779 gMC->Gsatt("*", "fill", 7);
780 gMC->SetClipBox(".");
781 gMC->SetClipBox("*", 0, 1000, -1000, 1000, -1000, 1000);
783 gMC->Gdraw("alic", 40, 30, 0, 12, 9.5, .02, .02);
784 gMC->Gdhead(1111, "Time Of Flight");
785 gMC->Gdman(18, 4, "MAN");
786 gMC->Gdopt("hide","off");
788 //_____________________________________________________________________________
789 void AliTOFv0::DrawDetectorModules()
792 // Draw a shaded view of the TOF detector version 0
795 //Set ALIC mother transparent
796 gMC->Gsatt("ALIC","SEEN",0);
799 //Set volumes visible
802 // Level 1 for TOF volumes
803 gMC->Gsatt("B077","seen",0);
806 //==========> Level 2
808 gMC->Gsatt("B076","seen",-1); // all B076 sub-levels skipped -
809 gMC->Gsatt("B071","seen",0);
810 gMC->Gsatt("B074","seen",0);
811 gMC->Gsatt("B075","seen",0);
812 gMC->Gsatt("B080","seen",0); // B080 does not has sub-level
816 gMC->Gsatt("B063","seen",-1); // all B063 sub-levels skipped -
817 gMC->Gsatt("B065","seen",-1); // all B065 sub-levels skipped -
818 gMC->Gsatt("B067","seen",-1); // all B067 sub-levels skipped -
819 gMC->Gsatt("B069","seen",-1); // all B069 sub-levels skipped -
820 gMC->Gsatt("B056","seen",0); // B056 does not has sub-levels -
821 gMC->Gsatt("B059","seen",-1); // all B059 sub-levels skipped -
822 gMC->Gsatt("B072","seen",-1); // all B072 sub-levels skipped -
823 gMC->Gsatt("BTR1","seen",0); // BTR1 do not have sub-levels -
824 gMC->Gsatt("BTO1","seen",0);
828 gMC->Gsatt("BTR2","seen",0); // BTR2 does not has sub-levels -
829 gMC->Gsatt("BTO2","seen",0);
832 gMC->Gsatt("BTR3","seen",0); // BTR3 do not have sub-levels -
833 gMC->Gsatt("BTO3","seen",0);
835 // ==================> Level 3
836 // Level 3 of B071 / Level 2 of BTO1
837 gMC->Gsatt("FTOC","seen",-2);
838 gMC->Gsatt("FTOB","seen",-2);
839 gMC->Gsatt("FTOA","seen",-2);
841 // Level 3 of B074 / Level 2 of BTO2
842 // -> cfr previous settings
844 // Level 3 of B075 / Level 2 of BTO3
845 // -> cfr previous settings
847 gMC->Gdopt("hide","on");
848 gMC->Gdopt("shad","on");
849 gMC->Gsatt("*", "fill", 5);
850 gMC->SetClipBox(".");
851 gMC->SetClipBox("*", 0, 1000, 0, 1000, 0, 1000);
853 gMC->Gdraw("alic", 45, 40, 0, 10, 10, .015, .015);
854 gMC->Gdhead(1111,"TOF detector V1");
855 gMC->Gdman(18, 4, "MAN");
856 gMC->Gdopt("hide","off");
859 //_____________________________________________________________________________
860 void AliTOFv0::DrawDetectorStrips()
863 // Draw a shaded view of the TOF strips for version 0
866 //Set ALIC mother transparent
867 gMC->Gsatt("ALIC","SEEN",0);
870 //Set volumes visible
872 // Level 1 for TOF volumes
873 gMC->Gsatt("B077","seen",0);
875 //==========> Level 2
877 gMC->Gsatt("B076","seen",-1); // all B076 sub-levels skipped -
878 gMC->Gsatt("B071","seen",0);
879 gMC->Gsatt("B074","seen",0);
880 gMC->Gsatt("B075","seen",0);
881 gMC->Gsatt("B080","seen",0); // B080 does not has sub-level
884 gMC->Gsatt("B063","seen",-1); // all B063 sub-levels skipped -
885 gMC->Gsatt("B065","seen",-1); // all B065 sub-levels skipped -
886 gMC->Gsatt("B067","seen",-1); // all B067 sub-levels skipped -
887 gMC->Gsatt("B069","seen",-1); // all B069 sub-levels skipped -
888 gMC->Gsatt("B056","seen",0); // B056 does not has sub-levels -
889 gMC->Gsatt("B059","seen",-1); // all B059 sub-levels skipped -
890 gMC->Gsatt("B072","seen",-1); // all B072 sub-levels skipped -
891 gMC->Gsatt("BTR1","seen",0); // BTR1 do not have sub-levels -
892 gMC->Gsatt("BTO1","seen",0);
894 // ==================> Level 3
895 // Level 3 of B071 / Level 2 of BTO1
896 gMC->Gsatt("FTOC","seen",0);
897 gMC->Gsatt("FTOB","seen",0);
898 gMC->Gsatt("FTOA","seen",0);
900 // Level 3 of B074 / Level 2 of BTO2
901 // -> cfr previous settings
903 // Level 3 of B075 / Level 2 of BTO3
904 // -> cfr previous settings
907 // ==========================> Level 4
908 // Level 4 of B071 / Level 3 of BTO1 / Level 2 of FTOC
909 gMC->Gsatt("FLTC","seen",0);
910 // Level 4 of B071 / Level 3 of BTO1 / Level 2 of FTOB
911 gMC->Gsatt("FLTB","seen",0);
912 // Level 4 of B071 / Level 3 of BTO1 / Level 2 of FTOA
913 gMC->Gsatt("FLTA","seen",0);
915 // Level 4 of B074 / Level 3 of BTO2 / Level 2 of FTOC
916 // -> cfr previous settings
917 // Level 4 of B074 / Level 3 of BTO2 / Level 2 of FTOB
918 // -> cfr previous settings
920 // Level 4 of B075 / Level 3 of BTO3 / Level 2 of FTOC
921 // -> cfr previous settings
923 //======================================> Level 5
924 // Level 5 of B071 / Level 4 of BTO1 / Level 3 of FTOC / Level 2 of FLTC
925 gMC->Gsatt("FALC","seen",0); // no children for FALC
926 gMC->Gsatt("FSTR","seen",-2);
927 gMC->Gsatt("FPEC","seen",0); // no children for FPEC
928 gMC->Gsatt("FECC","seen",0); // no children for FECC
929 gMC->Gsatt("FWAC","seen",0); // no children for FWAC
930 gMC->Gsatt("FAIC","seen",0); // no children for FAIC
932 // Level 5 of B071 / Level 4 of BTO1 / Level 3 of FTOB / Level 2 of FLTB
933 gMC->Gsatt("FALB","seen",0); // no children for FALB
934 //--> gMC->Gsatt("FSTR","seen",-2);
937 // -> cfr previous settings
938 gMC->Gsatt("FPEB","seen",0); // no children for FPEB
939 gMC->Gsatt("FECB","seen",0); // no children for FECB
940 gMC->Gsatt("FWAB","seen",0); // no children for FWAB
941 gMC->Gsatt("FAIB","seen",0); // no children for FAIB
943 // Level 5 of B071 / Level 4 of BTO1 / Level 3 of FTOA / Level 2 of FLTA
944 gMC->Gsatt("FALA","seen",0); // no children for FALB
945 //--> gMC->Gsatt("FSTR","seen",-2);
946 // -> cfr previous settings
947 gMC->Gsatt("FPEA","seen",0); // no children for FPEA
948 gMC->Gsatt("FECA","seen",0); // no children for FECA
949 gMC->Gsatt("FWAA","seen",0); // no children for FWAA
950 gMC->Gsatt("FAIA","seen",0); // no children for FAIA
953 gMC->Gsatt("BTR2","seen",0); // BTR2 does not has sub-levels -
954 gMC->Gsatt("BTO2","seen",0);
957 gMC->Gsatt("BTR3","seen",0); // BTR3 do not have sub-levels -
958 gMC->Gsatt("BTO3","seen",0);
960 // for others Level 5, cfr. previous settings
962 gMC->Gdopt("hide","on");
963 gMC->Gdopt("shad","on");
964 gMC->Gsatt("*", "fill", 5);
965 gMC->SetClipBox(".");
966 gMC->SetClipBox("*", 0, 1000, 0, 1000, 0, 1000);
968 gMC->Gdraw("alic", 45, 40, 0, 10, 10, .015, .015);
969 gMC->Gdhead(1111,"TOF Strips V1");
970 gMC->Gdman(18, 4, "MAN");
971 gMC->Gdopt("hide","off");
974 //_____________________________________________________________________________
975 void AliTOFv0::CreateMaterials()
978 // Define materials for the Time Of Flight
980 AliTOF::CreateMaterials();
983 //_____________________________________________________________________________
984 void AliTOFv0::Init()
987 // Initialise the detector after the geometry has been defined
989 printf("**************************************"
991 "**************************************\n");
992 printf("\n Version 0 of TOF initialing, "
993 "symmetric TOF - Full Coverage version\n");
997 fIdFTOA = gMC->VolId("FTOA");
998 fIdFTOB = gMC->VolId("FTOB");
999 fIdFTOC = gMC->VolId("FTOC");
1000 fIdFLTA = gMC->VolId("FLTA");
1001 fIdFLTB = gMC->VolId("FLTB");
1002 fIdFLTC = gMC->VolId("FLTC");
1005 printf("%s: **************************************"
1007 "**************************************\n",ClassName());
1011 //_____________________________________________________________________________
1012 void AliTOFv0::StepManager()
1015 // Procedure called at each step in the Time Of Flight
1017 TLorentzVector mom, pos;
1018 Float_t xm[3],pm[3],xpad[3],ppad[3];
1019 Float_t hits[13],phi,phid,z;
1021 Int_t sector, plate, padx, padz, strip;
1022 Int_t copy, padzid, padxid, stripid, i;
1023 Int_t *idtmed = fIdtmed->GetArray()-499;
1024 Float_t incidenceAngle;
1026 if(gMC->GetMedium()==idtmed[513] &&
1027 gMC->IsTrackEntering() && gMC->TrackCharge()
1028 && gMC->CurrentVolID(copy)==fIdSens)
1030 // getting information about hit volumes
1032 padzid=gMC->CurrentVolOffID(2,copy);
1035 padxid=gMC->CurrentVolOffID(1,copy);
1038 stripid=gMC->CurrentVolOffID(4,copy);
1041 gMC->TrackPosition(pos);
1042 gMC->TrackMomentum(mom);
1044 // Double_t NormPos=1./pos.Rho();
1045 Double_t normMom=1./mom.Rho();
1047 // getting the cohordinates in pad ref system
1048 xm[0] = (Float_t)pos.X();
1049 xm[1] = (Float_t)pos.Y();
1050 xm[2] = (Float_t)pos.Z();
1052 pm[0] = (Float_t)mom.X()*normMom;
1053 pm[1] = (Float_t)mom.Y()*normMom;
1054 pm[2] = (Float_t)mom.Z()*normMom;
1056 gMC->Gmtod(xm,xpad,1);
1057 gMC->Gmtod(pm,ppad,2);
1059 incidenceAngle = TMath::ACos(ppad[1])*kRaddeg;
1064 if (TMath::Abs(z) <= fZlenA*0.5) plate = 3;
1065 if (z < (fZlenA*0.5+fZlenB) &&
1066 z > fZlenA*0.5) plate = 4;
1067 if (z >-(fZlenA*0.5+fZlenB) &&
1068 z < -fZlenA*0.5) plate = 2;
1069 if (z > (fZlenA*0.5+fZlenB)) plate = 5;
1070 if (z <-(fZlenA*0.5+fZlenB)) plate = 1;
1073 phid = phi*kRaddeg+180.;
1074 sector = Int_t (phid/20.);
1082 hits[6] = mom.Rho();
1087 hits[11]= incidenceAngle;
1088 hits[12]= gMC->Edep();
1096 AddHit(gAlice->CurrentTrack(),vol, hits);