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 1.25.6.4 2002/10/11 10:56:40 hristov
19 Updating VirtualMC to v3-09-02
21 Revision 1.27 2002/07/24 16:13:56 vicinanz
22 Fixed bub in BuildGeometry
24 Revision 1.26 2002/05/08 13:24:50 vicinanz
25 AliTOFanalyzeMatching.C macro added and minor changes to the AliTOF code
27 Revision 1.25 2001/11/22 11:22:51 hristov
28 Updated version of TOF digitization, N^2 problem solved (J.Chudoba)
30 Revision 1.23 2001/09/27 10:39:20 vicinanz
31 SDigitizer and Merger added
33 Revision 1.22 2001/09/20 15:54:22 vicinanz
34 Updated Strip Structure (Double Stack)
36 Revision 1.21 2001/08/28 08:45:59 vicinanz
37 TTask and TFolder structures implemented
39 Revision 1.9 2001/05/04 10:09:48 vicinanz
40 Major upgrades to the strip structure
42 Revision 1.8 2000/12/04 08:48:20 alibrary
43 Fixing problems in the HEAD
45 Revision 1.7 2000/10/02 21:28:17 fca
46 Removal of useless dependecies via forward declarations
48 Revision 1.6 2000/05/10 16:52:18 vicinanz
49 New TOF version with holes for PHOS/RICH
51 Revision 1.4.2.1 2000/05/10 09:37:16 vicinanz
52 New version with Holes for PHOS/RICH
54 Revision 1.14 1999/11/05 22:39:06 fca
57 Revision 1.13 1999/11/02 11:26:39 fca
58 added stdlib.h for exit
60 Revision 1.12 1999/11/01 20:41:57 fca
61 Added protections against using the wrong version of FRAME
63 Revision 1.11 1999/10/22 08:04:14 fca
64 Correct improper use of negative parameters
66 Revision 1.10 1999/10/16 19:30:06 fca
67 Corrected Rotation Matrix and CVS log
69 Revision 1.9 1999/10/15 15:35:20 fca
70 New version for frame1099 with and without holes
72 Revision 1.8 1999/09/29 09:24:33 fca
73 Introduction of the Copyright and cvs Log
77 ///////////////////////////////////////////////////////////////////////////////
79 // This class contains the functions for version 0 of the Time Of Flight //
82 // VERSION WITH 5 MODULES AND TILTED STRIPS
83 // NO HITS DEFINED BY DEFAULT FOR THIS VERSION
84 // FULL COVERAGE VERSION
91 // University of Salerno - Italy
94 // University of Bologna - Italy
99 <img src="picts/AliTOFv0Class.gif">
103 ///////////////////////////////////////////////////////////////////////////////
105 #include <iostream.h>
108 #include "AliTOFv0.h"
110 #include "TGeometry.h"
112 #include <TLorentzVector.h>
116 #include "AliConst.h"
121 //_____________________________________________________________________________
125 // Default constructor
129 //_____________________________________________________________________________
130 AliTOFv0::AliTOFv0(const char *name, const char *title)
134 // Standard constructor
137 // Check that FRAME is there otherwise we have no place where to
139 AliModule* frame=gAlice->GetModule("FRAME");
141 Error("Ctor","TOF needs FRAME to be present\n");
144 if(frame->IsVersion()!=1) {
145 Error("Ctor","FRAME version 1 needed with this version of TOF\n");
151 //____________________________________________________________________________
153 void AliTOFv0::BuildGeometry()
156 // Build TOF ROOT geometry for the ALICE event display
159 const int kColorTOF = 27;
162 top = gAlice->GetGeometry()->GetNode("alice");
164 // Position the different copies
165 const Float_t krTof =(fRmax+fRmin)/2;
166 const Float_t khTof = fRmax-fRmin;
167 const Int_t kNTof = fNTof;
168 const Float_t kPi = TMath::Pi();
169 const Float_t kangle = 2*kPi/kNTof;
172 // define offset for nodes
173 Float_t zOffsetC = fZtof - fZlenC*0.5;
174 Float_t zOffsetB = fZtof - fZlenC - fZlenB*0.5;
175 Float_t zOffsetA = 0.;
176 // Define TOF basic volume
178 char nodeName0[7], nodeName1[7], nodeName2[7];
179 char nodeName3[7], nodeName4[7], rotMatNum[7];
181 new TBRIK("S_TOF_C","TOF box","void",
182 fStripLn*0.5,khTof*0.5,fZlenC*0.5);
183 new TBRIK("S_TOF_B","TOF box","void",
184 fStripLn*0.5,khTof*0.5,fZlenB*0.5);
185 new TBRIK("S_TOF_A","TOF box","void",
186 fStripLn*0.5,khTof*0.5,fZlenA*0.5);
188 for (Int_t nodeNum=1;nodeNum<19;nodeNum++){
191 sprintf(rotMatNum,"rot50%i",nodeNum);
192 sprintf(nodeName0,"FTO00%i",nodeNum);
193 sprintf(nodeName1,"FTO10%i",nodeNum);
194 sprintf(nodeName2,"FTO20%i",nodeNum);
195 sprintf(nodeName3,"FTO30%i",nodeNum);
196 sprintf(nodeName4,"FTO40%i",nodeNum);
199 sprintf(rotMatNum,"rot5%i",nodeNum);
200 sprintf(nodeName0,"FTO0%i",nodeNum);
201 sprintf(nodeName1,"FTO1%i",nodeNum);
202 sprintf(nodeName2,"FTO2%i",nodeNum);
203 sprintf(nodeName3,"FTO3%i",nodeNum);
204 sprintf(nodeName4,"FTO4%i",nodeNum);
207 new TRotMatrix(rotMatNum,rotMatNum,90,-20*nodeNum,90,90-20*nodeNum,0,0);
208 ang = (4.5-nodeNum) * kangle;
211 node = new TNode(nodeName0,nodeName0,"S_TOF_C",krTof*TMath::Cos(ang),krTof*TMath::Sin(ang),zOffsetC,rotMatNum);
212 node->SetLineColor(kColorTOF);
216 node = new TNode(nodeName1,nodeName1,"S_TOF_C",krTof*TMath::Cos(ang),krTof*TMath::Sin(ang),-zOffsetC,rotMatNum);
217 node->SetLineColor(kColorTOF);
221 node = new TNode(nodeName2,nodeName2,"S_TOF_B",krTof*TMath::Cos(ang),krTof*TMath::Sin(ang),zOffsetB,rotMatNum);
222 node->SetLineColor(kColorTOF);
226 node = new TNode(nodeName3,nodeName3,"S_TOF_B",krTof*TMath::Cos(ang),krTof*TMath::Sin(ang),-zOffsetB,rotMatNum);
227 node->SetLineColor(kColorTOF);
231 node = new TNode(nodeName4,nodeName4,"S_TOF_A",krTof*TMath::Cos(ang),krTof*TMath::Sin(ang),zOffsetA,rotMatNum);
232 node->SetLineColor(kColorTOF);
234 } // end loop on nodeNum
239 //_____________________________________________________________________________
240 void AliTOFv0::CreateGeometry()
243 // Create geometry for Time Of Flight version 0
247 <img src="picts/AliTOFv0.gif">
251 // Creates common geometry
253 AliTOF::CreateGeometry();
256 //_____________________________________________________________________________
257 void AliTOFv0::TOFpc(Float_t xtof, Float_t ytof, Float_t zlenC,
258 Float_t zlenB, Float_t zlenA, Float_t ztof0)
261 // Definition of the Time Of Fligh Resistive Plate Chambers
262 // xFLT, yFLT, zFLT - sizes of TOF modules (large)
264 Float_t ycoor, zcoor;
266 Int_t *idtmed = fIdtmed->GetArray()-499;
269 Float_t hTof = fRmax-fRmin;
271 Float_t radius = fRmin+2.;//cm
275 par[2] = zlenC * 0.5;
276 gMC->Gsvolu("FTOC", "BOX ", idtmed[506], par, 3);
277 par[2] = zlenB * 0.5;
278 gMC->Gsvolu("FTOB", "BOX ", idtmed[506], par, 3);
279 par[2] = zlenA * 0.5;
280 gMC->Gsvolu("FTOA", "BOX ", idtmed[506], par, 3);
283 // Positioning of modules
285 Float_t zcor1 = ztof0 - zlenC*0.5;
286 Float_t zcor2 = ztof0 - zlenC - zlenB*0.5;
289 AliMatrix(idrotm[0], 90., 0., 0., 0., 90,-90.);
290 AliMatrix(idrotm[1], 90.,180., 0., 0., 90, 90.);
291 gMC->Gspos("FTOC", 1, "BTO1", 0, zcor1, 0, idrotm[0], "ONLY");
292 gMC->Gspos("FTOC", 2, "BTO1", 0, -zcor1, 0, idrotm[1], "ONLY");
293 gMC->Gspos("FTOC", 1, "BTO2", 0, zcor1, 0, idrotm[0], "ONLY");
294 gMC->Gspos("FTOC", 2, "BTO2", 0, -zcor1, 0, idrotm[1], "ONLY");
295 gMC->Gspos("FTOC", 1, "BTO3", 0, zcor1, 0, idrotm[0], "ONLY");
296 gMC->Gspos("FTOC", 2, "BTO3", 0, -zcor1, 0, idrotm[1], "ONLY");
298 gMC->Gspos("FTOB", 1, "BTO1", 0, zcor2, 0, idrotm[0], "ONLY");
299 gMC->Gspos("FTOB", 2, "BTO1", 0, -zcor2, 0, idrotm[1], "ONLY");
300 gMC->Gspos("FTOB", 1, "BTO2", 0, zcor2, 0, idrotm[0], "ONLY");
301 gMC->Gspos("FTOB", 2, "BTO2", 0, -zcor2, 0, idrotm[1], "ONLY");
302 gMC->Gspos("FTOB", 1, "BTO3", 0, zcor2, 0, idrotm[0], "ONLY");
303 gMC->Gspos("FTOB", 2, "BTO3", 0, -zcor2, 0, idrotm[1], "ONLY");
305 gMC->Gspos("FTOA", 0, "BTO1", 0, zcor3, 0, idrotm[0], "ONLY");
306 gMC->Gspos("FTOA", 0, "BTO2", 0, zcor3, 0, idrotm[0], "ONLY");
307 gMC->Gspos("FTOA", 0, "BTO3", 0, zcor3, 0, idrotm[0], "ONLY");
309 Float_t db = 0.5;//cm
310 Float_t xFLT, xFST, yFLT, zFLTA, zFLTB, zFLTC;
318 xFST = xFLT-fDeadBndX*2;//cm
320 // Sizes of MRPC pads
322 Float_t yPad = 0.505;//cm
324 // Large not sensitive volumes with Insensitive Freon
328 cout <<"************************* TOF geometry **************************"<<endl;
330 par[2] = (zFLTA *0.5);
331 gMC->Gsvolu("FLTA", "BOX ", idtmed[512], par, 3); // Insensitive Freon
332 gMC->Gspos ("FLTA", 0, "FTOA", 0., 0., 0., 0, "ONLY");
334 par[2] = (zFLTB * 0.5);
335 gMC->Gsvolu("FLTB", "BOX ", idtmed[512], par, 3); // Insensitive Freon
336 gMC->Gspos ("FLTB", 0, "FTOB", 0., 0., 0., 0, "ONLY");
338 par[2] = (zFLTC * 0.5);
339 gMC->Gsvolu("FLTC", "BOX ", idtmed[512], par, 3); // Insensitive Freon
340 gMC->Gspos ("FLTC", 0, "FTOC", 0., 0., 0., 0, "ONLY");
342 ////////// Layers of Aluminum before and after detector //////////
343 ////////// Aluminum Box for Modules (2.0 mm thickness) /////////
344 ////////// lateral walls not simulated
347 ycoor = -yFLT/2 + par[1];
348 par[2] = (zFLTA *0.5);
349 gMC->Gsvolu("FALA", "BOX ", idtmed[508], par, 3); // Alluminium
350 gMC->Gspos ("FALA", 1, "FLTA", 0., ycoor, 0., 0, "ONLY");
351 gMC->Gspos ("FALA", 2, "FLTA", 0.,-ycoor, 0., 0, "ONLY");
352 par[2] = (zFLTB *0.5);
353 gMC->Gsvolu("FALB", "BOX ", idtmed[508], par, 3); // Alluminium
354 gMC->Gspos ("FALB", 1, "FLTB", 0., ycoor, 0., 0, "ONLY");
355 gMC->Gspos ("FALB", 2, "FLTB", 0.,-ycoor, 0., 0, "ONLY");
356 par[2] = (zFLTC *0.5);
357 gMC->Gsvolu("FALC", "BOX ", idtmed[508], par, 3); // Alluminium
358 gMC->Gspos ("FALC", 1, "FLTC", 0., ycoor, 0., 0, "ONLY");
359 gMC->Gspos ("FALC", 2, "FLTC", 0.,-ycoor, 0., 0, "ONLY");
361 ///////////////// Detector itself //////////////////////
362 const Float_t kdeadBound = fDeadBndZ; //cm non-sensitive between the pad edge
363 //and the boundary of the strip
364 const Int_t knx = fNpadX; // number of pads along x
365 const Int_t knz = fNpadZ; // number of pads along z
366 const Float_t kspace = fSpace; //cm distance from the front plate of the box
368 Float_t zSenStrip = fZpad*fNpadZ;//cm
369 Float_t stripWidth = zSenStrip + 2*kdeadBound;
372 par[2] = stripWidth*0.5;
374 // new description for strip volume -double stack strip-
375 // -- all constants are expressed in cm
376 // heigth of different layers
377 const Float_t khhony = 1. ; // heigth of HONY Layer
378 const Float_t khpcby = 0.15 ; // heigth of PCB Layer
379 const Float_t khmyly = 0.035 ; // heigth of MYLAR Layer
380 const Float_t khgraphy = 0.02 ; // heigth of GRAPHITE Layer
381 const Float_t khglasseiy = 0.17; // 0.6 Ext. Glass + 1.1 i.e. (Int. Glass/2) (mm)
382 const Float_t khsensmy = 0.11 ; // heigth of Sensitive Freon Mixture
383 const Float_t kwsensmz = 2*3.5 ; // cm
384 const Float_t klsensmx = 48*2.5; // cm
385 const Float_t kwpadz = 3.5; // cm z dimension of the FPAD volume
386 const Float_t klpadx = 2.5; // cm x dimension of the FPAD volume
388 // heigth of the FSTR Volume (the strip volume)
389 const Float_t khstripy = 2*khhony+3*khpcby+4*(khmyly+khgraphy+khglasseiy)+2*khsensmy;
390 // width of the FSTR Volume (the strip volume)
391 const Float_t kwstripz = 10.;
392 // length of the FSTR Volume (the strip volume)
393 const Float_t klstripx = 122.;
395 Float_t parfp[3]={klstripx*0.5,khstripy*0.5,kwstripz*0.5};
396 // coordinates of the strip center in the strip reference frame; used for positioning
397 // internal strip volumes
398 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
410 posfp[1]=-khstripy*0.5+parfp[1];
411 gMC->Gspos("FHON",1,"FSTR",0., posfp[1],0.,0,"ONLY");
412 gMC->Gspos("FHON",2,"FSTR",0.,-posfp[1],0.,0,"ONLY");
414 //-- PCB Layer definition
415 parfp[1] = khpcby*0.5;
416 gMC->Gsvolu("FPCB","BOX",idtmed[504],parfp,3);
417 // positioning 2 PCB Layers on FSTR volume
418 posfp[1]=-khstripy*0.5+khhony+parfp[1];
419 gMC->Gspos("FPCB",1,"FSTR",0., posfp[1],0.,0,"ONLY");
420 gMC->Gspos("FPCB",2,"FSTR",0.,-posfp[1],0.,0,"ONLY");
421 // positioning the central PCB layer
422 gMC->Gspos("FPCB",3,"FSTR",0.,0.,0.,0,"ONLY");
426 //-- MYLAR Layer definition
427 parfp[1] = khmyly*0.5;
428 gMC->Gsvolu("FMYL","BOX",idtmed[511],parfp,3);
429 // positioning 2 MYLAR Layers on FSTR volume
430 posfp[1] = -khstripy*0.5+khhony+khpcby+parfp[1];
431 gMC->Gspos("FMYL",1,"FSTR",0., posfp[1],0.,0,"ONLY");
432 gMC->Gspos("FMYL",2,"FSTR",0.,-posfp[1],0.,0,"ONLY");
433 // adding further 2 MYLAR Layers on FSTR volume
434 posfp[1] = khpcby*0.5+parfp[1];
435 gMC->Gspos("FMYL",3,"FSTR",0., posfp[1],0.,0,"ONLY");
436 gMC->Gspos("FMYL",4,"FSTR",0.,-posfp[1],0.,0,"ONLY");
439 //-- Graphite Layer definition
440 parfp[1] = khgraphy*0.5;
441 gMC->Gsvolu("FGRP","BOX",idtmed[502],parfp,3);
442 // positioning 2 Graphite Layers on FSTR volume
443 posfp[1] = -khstripy*0.5+khhony+khpcby+khmyly+parfp[1];
444 gMC->Gspos("FGRP",1,"FSTR",0., posfp[1],0.,0,"ONLY");
445 gMC->Gspos("FGRP",2,"FSTR",0.,-posfp[1],0.,0,"ONLY");
446 // adding further 2 Graphite Layers on FSTR volume
447 posfp[1] = khpcby*0.5+khmyly+parfp[1];
448 gMC->Gspos("FGRP",3,"FSTR",0., posfp[1],0.,0,"ONLY");
449 gMC->Gspos("FGRP",4,"FSTR",0.,-posfp[1],0.,0,"ONLY");
452 //-- Glass (EXT. +Semi INT.) Layer definition
453 parfp[1] = khglasseiy*0.5;
454 gMC->Gsvolu("FGLA","BOX",idtmed[514],parfp,3);
455 // positioning 2 Glass Layers on FSTR volume
456 posfp[1] = -khstripy*0.5+khhony+khpcby+khmyly+khgraphy+parfp[1];
457 gMC->Gspos("FGLA",1,"FSTR",0., posfp[1],0.,0,"ONLY");
458 gMC->Gspos("FGLA",2,"FSTR",0.,-posfp[1],0.,0,"ONLY");
459 // adding further 2 Glass Layers on FSTR volume
460 posfp[1] = khpcby*0.5+khmyly+khgraphy+parfp[1];
461 gMC->Gspos("FGLA",3,"FSTR",0., posfp[1],0.,0,"ONLY");
462 gMC->Gspos("FGLA",4,"FSTR",0.,-posfp[1],0.,0,"ONLY");
465 //-- Sensitive Mixture Layer definition
466 parfp[0] = klsensmx*0.5;
467 parfp[1] = khsensmy*0.5;
468 parfp[2] = kwsensmz*0.5;
469 gMC->Gsvolu("FSEN","BOX",idtmed[513],parfp,3);
470 gMC->Gsvolu("FNSE","BOX",idtmed[512],parfp,3);
471 // positioning 2 gas Layers on FSTR volume
472 // the upper is insensitive freon
473 // while the remaining is sensitive
474 posfp[1] = khpcby*0.5+khmyly+khgraphy+khglasseiy+parfp[1];
475 gMC->Gspos("FNSE",0,"FSTR", 0., posfp[1],0.,0,"ONLY");
476 gMC->Gspos("FSEN",0,"FSTR", 0.,-posfp[1],0.,0,"ONLY");
478 // dividing FSEN along z in knz=2 and along x in knx=48
479 gMC->Gsdvn("FSEZ","FSEN",knz,3);
480 gMC->Gsdvn("FSEX","FSEZ",knx,1);
482 // FPAD volume definition
483 parfp[0] = klpadx*0.5;
484 parfp[1] = khsensmy*0.5;
485 parfp[2] = kwpadz*0.5;
486 gMC->Gsvolu("FPAD","BOX",idtmed[513],parfp,3);
487 // positioning the FPAD volumes on previous divisions
488 gMC->Gspos("FPAD",0,"FSEX",0.,0.,0.,0,"ONLY");
490 //// Positioning the Strips (FSTR) in the FLT volumes /////
494 Float_t t = zFLTC+zFLTB+zFLTA*0.5+ 2*db;//Half Width of Barrel
496 Float_t gap = fGapA+0.5; //cm updated distance between the strip axis
502 ycoor = -14.5 + kspace ; //2 cm over front plate
504 AliMatrix (idrotm[0], 90., 0.,90.,90.,0., 90.);
505 gMC->Gspos("FSTR",j,"FLTA",0.,ycoor, 0.,idrotm[0],"ONLY");
507 printf("%f, St. %2i, Pl.3 ",ang*kRaddeg,i);
508 printf("y = %f, z = %f, zpos = %f \n",ycoor,zcoor,zpos);
512 Int_t upDown = -1; // upDown=-1 -> Upper strip
513 // upDown=+1 -> Lower strip
515 ang = atan(zcoor/radius);
517 AliMatrix (idrotm[nrot], 90., 0.,90.-ang,90.,-ang, 90.);
518 AliMatrix (idrotm[nrot+1],90.,180.,90.+ang,90., ang, 90.);
520 ycoor = -14.5+ kspace; //2 cm over front plate
521 ycoor += (1-(upDown+1)/2)*gap;
522 gMC->Gspos("FSTR",j ,"FLTA",0.,ycoor, zcoor,idrotm[nrot], "ONLY");
523 gMC->Gspos("FSTR",j+1,"FLTA",0.,ycoor,-zcoor,idrotm[nrot+1],"ONLY");
525 printf("%f, St. %2i, Pl.3 ",ang*kRaddeg,i);
526 printf("y = %f, z = %f, zpos = %f \n",ycoor,zcoor,zpos);
529 upDown*= -1; // Alternate strips
530 zcoor = zcoor-(zSenStrip/2)/TMath::Cos(ang)-
531 upDown*gap*TMath::Tan(ang)-
532 (zSenStrip/2)/TMath::Cos(ang);
533 } while (zcoor-(stripWidth/2)*TMath::Cos(ang)>-t+zFLTC+zFLTB+db*2);
535 zcoor = zcoor+(zSenStrip/2)/TMath::Cos(ang)+
536 upDown*gap*TMath::Tan(ang)+
537 (zSenStrip/2)/TMath::Cos(ang);
540 zcoor = zcoor-(zSenStrip/2)/TMath::Cos(ang)-
541 upDown*gap*TMath::Tan(ang)-
542 (zSenStrip/2)/TMath::Cos(ang);
544 ang = atan(zcoor/radius);
546 AliMatrix (idrotm[nrot], 90., 0.,90.-ang,90.,-ang, 90.);
547 AliMatrix (idrotm[nrot+1],90.,180.,90.+ang,90., ang, 90.);
550 ycoor = -14.5+ kspace; //2 cm over front plate
551 ycoor += (1-(upDown+1)/2)*gap;
552 gMC->Gspos("FSTR",j ,"FLTA",0.,ycoor, zcoor,idrotm[nrot], "ONLY");
553 gMC->Gspos("FSTR",j+1,"FLTA",0.,ycoor,-zcoor,idrotm[nrot+1],"ONLY");
554 printf("%f, St. %2i, Pl.3 ",ang*kRaddeg,i);
555 printf("y = %f, z = %f, zpos = %f \n",ycoor,zcoor,zpos);
557 ycoor = -hTof/2.+ kspace;//2 cm over front plate
564 Float_t deadRegion = 1.0;//cm
566 zpos = zcoor - (zSenStrip/2)/TMath::Cos(ang)-
567 upDown*gap*TMath::Tan(ang)-
568 (zSenStrip/2)/TMath::Cos(ang)-
569 deadRegion/TMath::Cos(ang);
571 ang = atan(zpos/radius);
573 AliMatrix (idrotm[nrot], 90., 0., 90.-ang,90.,ang, 270.);
575 ycoor = -hTof*0.5+ kspace ; //2 cm over front plate
576 ycoor += (1-(upDown+1)/2)*gap;
577 zcoor = zpos+(zFLTA*0.5+zFLTB*0.5+db); // Moves to the system of the modulus FLTB
578 gMC->Gspos("FSTR",i, "FLTB", 0., ycoor, zcoor,idrotm[nrot], "ONLY");
580 printf("%f, St. %2i, Pl.4 ",ang*kRaddeg,i);
581 printf("y = %f, z = %f, zpos = %f \n",ycoor,zcoor,zpos);
587 zpos = zpos - (zSenStrip/2)/TMath::Cos(ang)-
588 upDown*gap*TMath::Tan(ang)-
589 (zSenStrip/2)/TMath::Cos(ang);
590 ang = atan(zpos/radius);
592 AliMatrix (idrotm[nrot], 90., 0., 90.-ang,90.,ang, 270.);
594 Float_t deltaSpaceinB=-0.5; // [cm] to avoid overlaps with the end of freon frame
595 Float_t deltaGapinB=0.5; // [cm] to avoid overlaps in between initial strips
596 ycoor = -hTof*0.5+ kspace+deltaSpaceinB ; //2 cm over front plate
597 ycoor += (1-(upDown+1)/2)*(gap+deltaGapinB);
598 zcoor = zpos+(zFLTA*0.5+zFLTB*0.5+db); // Moves to the system of the modulus FLTB
599 gMC->Gspos("FSTR",i, "FLTB", 0., ycoor, zcoor,idrotm[nrot], "ONLY");
601 printf("%f, St. %2i, Pl.4 ",ang*kRaddeg,i);
602 printf("y = %f, z = %f, zpos = %f \n",ycoor,zcoor,zpos);
606 } while (TMath::Abs(ang*kRaddeg)<22.5);
607 //till we reach a tilting angle of 22.5 degrees
609 ycoor = -hTof*0.5+ kspace ; //2 cm over front plate
610 zpos = zpos - zSenStrip/TMath::Cos(ang);
611 // this avoid overlaps in between outer strips in plate B
612 Float_t deltaMovingUp=0.8; // [cm]
613 Float_t deltaMovingDown=-0.5; // [cm]
616 ang = atan(zpos/radius);
618 AliMatrix (idrotm[nrot], 90., 0., 90.-ang,90.,ang, 270.);
620 zcoor = zpos+(zFLTB/2+zFLTA/2+db);
621 gMC->Gspos("FSTR",i, "FLTB", 0., ycoor+deltaMovingDown+deltaMovingUp, zcoor,idrotm[nrot], "ONLY");
622 deltaMovingUp+=0.8; // update delta moving toward the end of the plate
623 zpos = zpos - zSenStrip/TMath::Cos(ang);
624 printf("%f, St. %2i, Pl.4 ",ang*kRaddeg,i);
625 printf("y = %f, z = %f, zpos = %f \n",ycoor,zcoor,zpos);
627 } while (zpos-stripWidth*0.5/TMath::Cos(ang)>-t+zFLTC+db);
631 zpos = zpos + zSenStrip/TMath::Cos(ang);
633 zpos = zpos - (zSenStrip/2)/TMath::Cos(ang)+
635 (zSenStrip/2)/TMath::Cos(ang);
639 Float_t deltaGap=-2.5; // [cm] update distance from strip center and plate
640 ycoor= -hTof*0.5+kspace+gap+deltaGap;
644 ang = atan(zpos/radius);
646 AliMatrix (idrotm[nrot], 90., 0., 90.-ang,90.,ang, 270.);
648 zcoor = zpos+(zFLTC*0.5+zFLTB+zFLTA*0.5+db*2);
649 gMC->Gspos("FSTR",i, "FLTC", 0., ycoor, zcoor,idrotm[nrot], "ONLY");
651 printf("%f, St. %2i, Pl.5 ",ang*kRaddeg,i);
652 printf("y = %f, z = %f, zpos = %f \n",ycoor,zcoor,zpos);
654 zpos = zpos - zSenStrip/TMath::Cos(ang);
655 } while (zpos-stripWidth*TMath::Cos(ang)*0.5>-t);
658 ////////// Layers after strips /////////////////
659 // honeycomb (Polyethilene) Layer after (1.2cm)
661 Float_t overSpace = fOverSpc;//cm
665 par[2] = (zFLTA *0.5);
666 ycoor = -yFLT/2 + overSpace + par[1];
667 gMC->Gsvolu("FPEA", "BOX ", idtmed[503], par, 3); // Hony
668 gMC->Gspos ("FPEA", 0, "FLTA", 0., ycoor, 0., 0, "ONLY");
669 par[2] = (zFLTB *0.5);
670 gMC->Gsvolu("FPEB", "BOX ", idtmed[503], par, 3); // Hony
671 gMC->Gspos ("FPEB", 0, "FLTB", 0., ycoor, 0., 0, "ONLY");
672 par[2] = (zFLTC *0.5);
673 gMC->Gsvolu("FPEC", "BOX ", idtmed[503], par, 3); // Hony
674 gMC->Gspos ("FPEC", 0, "FLTC", 0., ycoor, 0., 0, "ONLY");
676 // Electronics (Cu) after
679 par[1] = 1.43*0.05*0.5; // 5% of X0
680 par[2] = (zFLTA *0.5);
682 gMC->Gsvolu("FECA", "BOX ", idtmed[501], par, 3); // Cu
683 gMC->Gspos ("FECA", 0, "FLTA", 0., ycoor, 0., 0, "ONLY");
684 par[2] = (zFLTB *0.5);
685 gMC->Gsvolu("FECB", "BOX ", idtmed[501], par, 3); // Cu
686 gMC->Gspos ("FECB", 0, "FLTB", 0., ycoor, 0., 0, "ONLY");
687 par[2] = (zFLTC *0.5);
688 gMC->Gsvolu("FECC", "BOX ", idtmed[501], par, 3); // Cu
689 gMC->Gspos ("FECC", 0, "FLTC", 0., ycoor, 0., 0, "ONLY");
691 // cooling WAter after
694 par[1] = 36.1*0.02*0.5; // 2% of X0
695 par[2] = (zFLTA *0.5);
697 gMC->Gsvolu("FWAA", "BOX ", idtmed[515], par, 3); // Water
698 gMC->Gspos ("FWAA", 0, "FLTA", 0., ycoor, 0., 0, "ONLY");
699 par[2] = (zFLTB *0.5);
700 gMC->Gsvolu("FWAB", "BOX ", idtmed[515], par, 3); // Water
701 gMC->Gspos ("FWAB", 0, "FLTB", 0., ycoor, 0., 0, "ONLY");
702 par[2] = (zFLTC *0.5);
703 gMC->Gsvolu("FWAC", "BOX ", idtmed[515], par, 3); // Water
704 gMC->Gspos ("FWAC", 0, "FLTC", 0., ycoor, 0., 0, "ONLY");
709 par[1] = (yFLT/2-ycoor-0.2)*0.5; // Aluminum layer considered (0.2 cm)
710 par[2] = (zFLTA *0.5);
712 gMC->Gsvolu("FAIA", "BOX ", idtmed[500], par, 3); // Air
713 gMC->Gspos ("FAIA", 0, "FLTA", 0., ycoor, 0., 0, "ONLY");
714 par[2] = (zFLTB *0.5);
715 gMC->Gsvolu("FAIB", "BOX ", idtmed[500], par, 3); // Air
716 gMC->Gspos ("FAIB", 0, "FLTB", 0., ycoor, 0., 0, "ONLY");
717 par[2] = (zFLTC *0.5);
718 gMC->Gsvolu("FAIC", "BOX ", idtmed[500], par, 3); // Air
719 gMC->Gspos ("FAIC", 0, "FLTC", 0., ycoor, 0., 0, "ONLY");
721 //Back Plate honycomb (2cm)
725 ycoor = yFLT/2 - par[1];
726 gMC->Gsvolu("FBPA", "BOX ", idtmed[503], par, 3); // Hony
727 gMC->Gspos ("FBPA", 0, "FLTA", 0., ycoor, 0., 0, "ONLY");
728 gMC->Gsvolu("FBPB", "BOX ", idtmed[503], par, 3); // Hony
729 gMC->Gspos ("FBPB", 0, "FLTB", 0., ycoor, 0., 0, "ONLY");
730 gMC->Gsvolu("FBPC", "BOX ", idtmed[503], par, 3); // Hony
731 gMC->Gspos ("FBPC", 0, "FLTC", 0., ycoor, 0., 0, "ONLY");
735 //_____________________________________________________________________________
736 void AliTOFv0::DrawModule() const
739 // Draw a shaded view of the Time Of Flight version 0
741 // Set everything unseen
742 gMC->Gsatt("*", "seen", -1);
744 // Set ALIC mother transparent
745 gMC->Gsatt("ALIC","SEEN",0);
747 // Set the volumes visible
748 gMC->Gsatt("ALIC","SEEN",0);
750 gMC->Gsatt("FTOA","SEEN",1);
751 gMC->Gsatt("FTOB","SEEN",1);
752 gMC->Gsatt("FTOC","SEEN",1);
753 gMC->Gsatt("FLTA","SEEN",1);
754 gMC->Gsatt("FLTB","SEEN",1);
755 gMC->Gsatt("FLTC","SEEN",1);
756 gMC->Gsatt("FPLA","SEEN",1);
757 gMC->Gsatt("FPLB","SEEN",1);
758 gMC->Gsatt("FPLC","SEEN",1);
759 gMC->Gsatt("FSTR","SEEN",1);
760 gMC->Gsatt("FPEA","SEEN",1);
761 gMC->Gsatt("FPEB","SEEN",1);
762 gMC->Gsatt("FPEC","SEEN",1);
764 gMC->Gsatt("FLZ1","SEEN",0);
765 gMC->Gsatt("FLZ2","SEEN",0);
766 gMC->Gsatt("FLZ3","SEEN",0);
767 gMC->Gsatt("FLX1","SEEN",0);
768 gMC->Gsatt("FLX2","SEEN",0);
769 gMC->Gsatt("FLX3","SEEN",0);
770 gMC->Gsatt("FPAD","SEEN",0);
772 gMC->Gdopt("hide", "on");
773 gMC->Gdopt("shad", "on");
774 gMC->Gsatt("*", "fill", 7);
775 gMC->SetClipBox(".");
776 gMC->SetClipBox("*", 0, 1000, -1000, 1000, -1000, 1000);
778 gMC->Gdraw("alic", 40, 30, 0, 12, 9.5, .02, .02);
779 gMC->Gdhead(1111, "Time Of Flight");
780 gMC->Gdman(18, 4, "MAN");
781 gMC->Gdopt("hide","off");
783 //_____________________________________________________________________________
784 void AliTOFv0::DrawDetectorModules()
787 // Draw a shaded view of the TOF detector version 0
790 AliMC* pMC = AliMC::GetMC();
792 //Set ALIC mother transparent
793 pMC->Gsatt("ALIC","SEEN",0);
796 //Set volumes visible
799 // Level 1 for TOF volumes
800 gMC->Gsatt("B077","seen",0);
803 //==========> Level 2
805 gMC->Gsatt("B076","seen",-1); // all B076 sub-levels skipped -
806 gMC->Gsatt("B071","seen",0);
807 gMC->Gsatt("B074","seen",0);
808 gMC->Gsatt("B075","seen",0);
809 gMC->Gsatt("B080","seen",0); // B080 does not has sub-level
813 gMC->Gsatt("B063","seen",-1); // all B063 sub-levels skipped -
814 gMC->Gsatt("B065","seen",-1); // all B065 sub-levels skipped -
815 gMC->Gsatt("B067","seen",-1); // all B067 sub-levels skipped -
816 gMC->Gsatt("B069","seen",-1); // all B069 sub-levels skipped -
817 gMC->Gsatt("B056","seen",0); // B056 does not has sub-levels -
818 gMC->Gsatt("B059","seen",-1); // all B059 sub-levels skipped -
819 gMC->Gsatt("B072","seen",-1); // all B072 sub-levels skipped -
820 gMC->Gsatt("BTR1","seen",0); // BTR1 do not have sub-levels -
821 gMC->Gsatt("BTO1","seen",0);
825 gMC->Gsatt("BTR2","seen",0); // BTR2 does not has sub-levels -
826 gMC->Gsatt("BTO2","seen",0);
829 gMC->Gsatt("BTR3","seen",0); // BTR3 do not have sub-levels -
830 gMC->Gsatt("BTO3","seen",0);
832 // ==================> Level 3
833 // Level 3 of B071 / Level 2 of BTO1
834 gMC->Gsatt("FTOC","seen",-2);
835 gMC->Gsatt("FTOB","seen",-2);
836 gMC->Gsatt("FTOA","seen",-2);
838 // Level 3 of B074 / Level 2 of BTO2
839 // -> cfr previous settings
841 // Level 3 of B075 / Level 2 of BTO3
842 // -> cfr previous settings
844 gMC->Gdopt("hide","on");
845 gMC->Gdopt("shad","on");
846 gMC->Gsatt("*", "fill", 5);
847 gMC->SetClipBox(".");
848 gMC->SetClipBox("*", 0, 1000, 0, 1000, 0, 1000);
850 gMC->Gdraw("alic", 45, 40, 0, 10, 10, .015, .015);
851 gMC->Gdhead(1111,"TOF detector V1");
852 gMC->Gdman(18, 4, "MAN");
853 gMC->Gdopt("hide","off");
856 //_____________________________________________________________________________
857 void AliTOFv0::DrawDetectorStrips()
860 // Draw a shaded view of the TOF strips for version 0
863 AliMC* pMC = AliMC::GetMC();
865 //Set ALIC mother transparent
866 pMC->Gsatt("ALIC","SEEN",0);
869 //Set volumes visible
871 // Level 1 for TOF volumes
872 gMC->Gsatt("B077","seen",0);
874 //==========> Level 2
876 gMC->Gsatt("B076","seen",-1); // all B076 sub-levels skipped -
877 gMC->Gsatt("B071","seen",0);
878 gMC->Gsatt("B074","seen",0);
879 gMC->Gsatt("B075","seen",0);
880 gMC->Gsatt("B080","seen",0); // B080 does not has sub-level
883 gMC->Gsatt("B063","seen",-1); // all B063 sub-levels skipped -
884 gMC->Gsatt("B065","seen",-1); // all B065 sub-levels skipped -
885 gMC->Gsatt("B067","seen",-1); // all B067 sub-levels skipped -
886 gMC->Gsatt("B069","seen",-1); // all B069 sub-levels skipped -
887 gMC->Gsatt("B056","seen",0); // B056 does not has sub-levels -
888 gMC->Gsatt("B059","seen",-1); // all B059 sub-levels skipped -
889 gMC->Gsatt("B072","seen",-1); // all B072 sub-levels skipped -
890 gMC->Gsatt("BTR1","seen",0); // BTR1 do not have sub-levels -
891 gMC->Gsatt("BTO1","seen",0);
893 // ==================> Level 3
894 // Level 3 of B071 / Level 2 of BTO1
895 gMC->Gsatt("FTOC","seen",0);
896 gMC->Gsatt("FTOB","seen",0);
897 gMC->Gsatt("FTOA","seen",0);
899 // Level 3 of B074 / Level 2 of BTO2
900 // -> cfr previous settings
902 // Level 3 of B075 / Level 2 of BTO3
903 // -> cfr previous settings
906 // ==========================> Level 4
907 // Level 4 of B071 / Level 3 of BTO1 / Level 2 of FTOC
908 gMC->Gsatt("FLTC","seen",0);
909 // Level 4 of B071 / Level 3 of BTO1 / Level 2 of FTOB
910 gMC->Gsatt("FLTB","seen",0);
911 // Level 4 of B071 / Level 3 of BTO1 / Level 2 of FTOA
912 gMC->Gsatt("FLTA","seen",0);
914 // Level 4 of B074 / Level 3 of BTO2 / Level 2 of FTOC
915 // -> cfr previous settings
916 // Level 4 of B074 / Level 3 of BTO2 / Level 2 of FTOB
917 // -> cfr previous settings
919 // Level 4 of B075 / Level 3 of BTO3 / Level 2 of FTOC
920 // -> cfr previous settings
922 //======================================> Level 5
923 // Level 5 of B071 / Level 4 of BTO1 / Level 3 of FTOC / Level 2 of FLTC
924 gMC->Gsatt("FALC","seen",0); // no children for FALC
925 gMC->Gsatt("FSTR","seen",-2);
926 gMC->Gsatt("FPEC","seen",0); // no children for FPEC
927 gMC->Gsatt("FECC","seen",0); // no children for FECC
928 gMC->Gsatt("FWAC","seen",0); // no children for FWAC
929 gMC->Gsatt("FAIC","seen",0); // no children for FAIC
931 // Level 5 of B071 / Level 4 of BTO1 / Level 3 of FTOB / Level 2 of FLTB
932 gMC->Gsatt("FALB","seen",0); // no children for FALB
933 //--> gMC->Gsatt("FSTR","seen",-2);
936 // -> cfr previous settings
937 gMC->Gsatt("FPEB","seen",0); // no children for FPEB
938 gMC->Gsatt("FECB","seen",0); // no children for FECB
939 gMC->Gsatt("FWAB","seen",0); // no children for FWAB
940 gMC->Gsatt("FAIB","seen",0); // no children for FAIB
942 // Level 5 of B071 / Level 4 of BTO1 / Level 3 of FTOA / Level 2 of FLTA
943 gMC->Gsatt("FALA","seen",0); // no children for FALB
944 //--> gMC->Gsatt("FSTR","seen",-2);
945 // -> cfr previous settings
946 gMC->Gsatt("FPEA","seen",0); // no children for FPEA
947 gMC->Gsatt("FECA","seen",0); // no children for FECA
948 gMC->Gsatt("FWAA","seen",0); // no children for FWAA
949 gMC->Gsatt("FAIA","seen",0); // no children for FAIA
952 gMC->Gsatt("BTR2","seen",0); // BTR2 does not has sub-levels -
953 gMC->Gsatt("BTO2","seen",0);
956 gMC->Gsatt("BTR3","seen",0); // BTR3 do not have sub-levels -
957 gMC->Gsatt("BTO3","seen",0);
959 // for others Level 5, cfr. previous settings
961 gMC->Gdopt("hide","on");
962 gMC->Gdopt("shad","on");
963 gMC->Gsatt("*", "fill", 5);
964 gMC->SetClipBox(".");
965 gMC->SetClipBox("*", 0, 1000, 0, 1000, 0, 1000);
967 gMC->Gdraw("alic", 45, 40, 0, 10, 10, .015, .015);
968 gMC->Gdhead(1111,"TOF Strips V1");
969 gMC->Gdman(18, 4, "MAN");
970 gMC->Gdopt("hide","off");
973 //_____________________________________________________________________________
974 void AliTOFv0::CreateMaterials()
977 // Define materials for the Time Of Flight
979 AliTOF::CreateMaterials();
982 //_____________________________________________________________________________
983 void AliTOFv0::Init()
986 // Initialise the detector after the geometry has been defined
988 printf("**************************************"
990 "**************************************\n");
991 printf("\n Version 0 of TOF initialing, "
992 "symmetric TOF - Full Coverage version\n");
996 fIdFTOA = gMC->VolId("FTOA");
997 fIdFTOB = gMC->VolId("FTOB");
998 fIdFTOC = gMC->VolId("FTOC");
999 fIdFLTA = gMC->VolId("FLTA");
1000 fIdFLTB = gMC->VolId("FLTB");
1001 fIdFLTC = gMC->VolId("FLTC");
1004 printf("%s: **************************************"
1006 "**************************************\n",ClassName());
1010 //_____________________________________________________________________________
1011 void AliTOFv0::StepManager()
1014 // Procedure called at each step in the Time Of Flight
1016 TLorentzVector mom, pos;
1017 Float_t xm[3],pm[3],xpad[3],ppad[3];
1018 Float_t hits[13],phi,phid,z;
1020 Int_t sector, plate, padx, padz, strip;
1021 Int_t copy, padzid, padxid, stripid, i;
1022 Int_t *idtmed = fIdtmed->GetArray()-499;
1023 Float_t incidenceAngle;
1025 if(gMC->GetMedium()==idtmed[513] &&
1026 gMC->IsTrackEntering() && gMC->TrackCharge()
1027 && gMC->CurrentVolID(copy)==fIdSens)
1029 // getting information about hit volumes
1031 padzid=gMC->CurrentVolOffID(2,copy);
1034 padxid=gMC->CurrentVolOffID(1,copy);
1037 stripid=gMC->CurrentVolOffID(4,copy);
1040 gMC->TrackPosition(pos);
1041 gMC->TrackMomentum(mom);
1043 // Double_t NormPos=1./pos.Rho();
1044 Double_t normMom=1./mom.Rho();
1046 // getting the cohordinates in pad ref system
1047 xm[0] = (Float_t)pos.X();
1048 xm[1] = (Float_t)pos.Y();
1049 xm[2] = (Float_t)pos.Z();
1051 pm[0] = (Float_t)mom.X()*normMom;
1052 pm[1] = (Float_t)mom.Y()*normMom;
1053 pm[2] = (Float_t)mom.Z()*normMom;
1055 gMC->Gmtod(xm,xpad,1);
1056 gMC->Gmtod(pm,ppad,2);
1058 incidenceAngle = TMath::ACos(ppad[1])*kRaddeg;
1063 if (TMath::Abs(z) <= fZlenA*0.5) plate = 3;
1064 if (z < (fZlenA*0.5+fZlenB) &&
1065 z > fZlenA*0.5) plate = 4;
1066 if (z >-(fZlenA*0.5+fZlenB) &&
1067 z < -fZlenA*0.5) plate = 2;
1068 if (z > (fZlenA*0.5+fZlenB)) plate = 5;
1069 if (z <-(fZlenA*0.5+fZlenB)) plate = 1;
1072 phid = phi*kRaddeg+180.;
1073 sector = Int_t (phid/20.);
1081 hits[6] = mom.Rho();
1086 hits[11]= incidenceAngle;
1087 hits[12]= gMC->Edep();
1095 AddHit(gAlice->CurrentTrack(),vol, hits);