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 1.28 2002/10/14 14:57:42 hristov
19 Merging the VirtualMC branch to the main development branch (HEAD)
21 Revision 1.25.6.4 2002/10/11 10:56:40 hristov
22 Updating VirtualMC to v3-09-02
24 Revision 1.27 2002/07/24 16:13:56 vicinanz
25 Fixed bub in BuildGeometry
27 Revision 1.26 2002/05/08 13:24:50 vicinanz
28 AliTOFanalyzeMatching.C macro added and minor changes to the AliTOF code
30 Revision 1.25 2001/11/22 11:22:51 hristov
31 Updated version of TOF digitization, N^2 problem solved (J.Chudoba)
33 Revision 1.23 2001/09/27 10:39:20 vicinanz
34 SDigitizer and Merger added
36 Revision 1.22 2001/09/20 15:54:22 vicinanz
37 Updated Strip Structure (Double Stack)
39 Revision 1.21 2001/08/28 08:45:59 vicinanz
40 TTask and TFolder structures implemented
42 Revision 1.9 2001/05/04 10:09:48 vicinanz
43 Major upgrades to the strip structure
45 Revision 1.8 2000/12/04 08:48:20 alibrary
46 Fixing problems in the HEAD
48 Revision 1.7 2000/10/02 21:28:17 fca
49 Removal of useless dependecies via forward declarations
51 Revision 1.6 2000/05/10 16:52:18 vicinanz
52 New TOF version with holes for PHOS/RICH
54 Revision 1.4.2.1 2000/05/10 09:37:16 vicinanz
55 New version with Holes for PHOS/RICH
57 Revision 1.14 1999/11/05 22:39:06 fca
60 Revision 1.13 1999/11/02 11:26:39 fca
61 added stdlib.h for exit
63 Revision 1.12 1999/11/01 20:41:57 fca
64 Added protections against using the wrong version of FRAME
66 Revision 1.11 1999/10/22 08:04:14 fca
67 Correct improper use of negative parameters
69 Revision 1.10 1999/10/16 19:30:06 fca
70 Corrected Rotation Matrix and CVS log
72 Revision 1.9 1999/10/15 15:35:20 fca
73 New version for frame1099 with and without holes
75 Revision 1.8 1999/09/29 09:24:33 fca
76 Introduction of the Copyright and cvs Log
80 ///////////////////////////////////////////////////////////////////////////////
82 // This class contains the functions for version 0 of the Time Of Flight //
85 // VERSION WITH 5 MODULES AND TILTED STRIPS
86 // NO HITS DEFINED BY DEFAULT FOR THIS VERSION
87 // FULL COVERAGE VERSION
94 // University of Salerno - Italy
97 // University of Bologna - Italy
102 <img src="picts/AliTOFv0Class.gif">
106 ///////////////////////////////////////////////////////////////////////////////
108 #include <Riostream.h>
111 #include "AliTOFv0.h"
113 #include "TGeometry.h"
115 #include <TLorentzVector.h>
119 #include "AliConst.h"
124 //_____________________________________________________________________________
128 // Default constructor
132 //_____________________________________________________________________________
133 AliTOFv0::AliTOFv0(const char *name, const char *title)
137 // Standard constructor
140 // Check that FRAME is there otherwise we have no place where to
142 AliModule* frame=gAlice->GetModule("FRAME");
144 Error("Ctor","TOF needs FRAME to be present\n");
147 if(frame->IsVersion()!=1) {
148 Error("Ctor","FRAME version 1 needed with this version of TOF\n");
154 //____________________________________________________________________________
156 void AliTOFv0::BuildGeometry()
159 // Build TOF ROOT geometry for the ALICE event display
162 const int kColorTOF = 27;
165 top = gAlice->GetGeometry()->GetNode("alice");
167 // Position the different copies
168 const Float_t krTof =(fRmax+fRmin)/2;
169 const Float_t khTof = fRmax-fRmin;
170 const Int_t kNTof = fNTof;
171 const Float_t kPi = TMath::Pi();
172 const Float_t kangle = 2*kPi/kNTof;
175 // define offset for nodes
176 Float_t zOffsetC = fZtof - fZlenC*0.5;
177 Float_t zOffsetB = fZtof - fZlenC - fZlenB*0.5;
178 Float_t zOffsetA = 0.;
179 // Define TOF basic volume
181 char nodeName0[7], nodeName1[7], nodeName2[7];
182 char nodeName3[7], nodeName4[7], rotMatNum[7];
184 new TBRIK("S_TOF_C","TOF box","void",
185 fStripLn*0.5,khTof*0.5,fZlenC*0.5);
186 new TBRIK("S_TOF_B","TOF box","void",
187 fStripLn*0.5,khTof*0.5,fZlenB*0.5);
188 new TBRIK("S_TOF_A","TOF box","void",
189 fStripLn*0.5,khTof*0.5,fZlenA*0.5);
191 for (Int_t nodeNum=1;nodeNum<19;nodeNum++){
194 sprintf(rotMatNum,"rot50%i",nodeNum);
195 sprintf(nodeName0,"FTO00%i",nodeNum);
196 sprintf(nodeName1,"FTO10%i",nodeNum);
197 sprintf(nodeName2,"FTO20%i",nodeNum);
198 sprintf(nodeName3,"FTO30%i",nodeNum);
199 sprintf(nodeName4,"FTO40%i",nodeNum);
202 sprintf(rotMatNum,"rot5%i",nodeNum);
203 sprintf(nodeName0,"FTO0%i",nodeNum);
204 sprintf(nodeName1,"FTO1%i",nodeNum);
205 sprintf(nodeName2,"FTO2%i",nodeNum);
206 sprintf(nodeName3,"FTO3%i",nodeNum);
207 sprintf(nodeName4,"FTO4%i",nodeNum);
210 new TRotMatrix(rotMatNum,rotMatNum,90,-20*nodeNum,90,90-20*nodeNum,0,0);
211 ang = (4.5-nodeNum) * kangle;
214 node = new TNode(nodeName0,nodeName0,"S_TOF_C",krTof*TMath::Cos(ang),krTof*TMath::Sin(ang),zOffsetC,rotMatNum);
215 node->SetLineColor(kColorTOF);
219 node = new TNode(nodeName1,nodeName1,"S_TOF_C",krTof*TMath::Cos(ang),krTof*TMath::Sin(ang),-zOffsetC,rotMatNum);
220 node->SetLineColor(kColorTOF);
224 node = new TNode(nodeName2,nodeName2,"S_TOF_B",krTof*TMath::Cos(ang),krTof*TMath::Sin(ang),zOffsetB,rotMatNum);
225 node->SetLineColor(kColorTOF);
229 node = new TNode(nodeName3,nodeName3,"S_TOF_B",krTof*TMath::Cos(ang),krTof*TMath::Sin(ang),-zOffsetB,rotMatNum);
230 node->SetLineColor(kColorTOF);
234 node = new TNode(nodeName4,nodeName4,"S_TOF_A",krTof*TMath::Cos(ang),krTof*TMath::Sin(ang),zOffsetA,rotMatNum);
235 node->SetLineColor(kColorTOF);
237 } // end loop on nodeNum
242 //_____________________________________________________________________________
243 void AliTOFv0::CreateGeometry()
246 // Create geometry for Time Of Flight version 0
250 <img src="picts/AliTOFv0.gif">
254 // Creates common geometry
256 AliTOF::CreateGeometry();
259 //_____________________________________________________________________________
260 void AliTOFv0::TOFpc(Float_t xtof, Float_t ytof, Float_t zlenC,
261 Float_t zlenB, Float_t zlenA, Float_t ztof0)
264 // Definition of the Time Of Fligh Resistive Plate Chambers
265 // xFLT, yFLT, zFLT - sizes of TOF modules (large)
267 Float_t ycoor, zcoor;
269 Int_t *idtmed = fIdtmed->GetArray()-499;
272 Float_t hTof = fRmax-fRmin;
274 Float_t radius = fRmin+2.;//cm
278 par[2] = zlenC * 0.5;
279 gMC->Gsvolu("FTOC", "BOX ", idtmed[506], par, 3);
280 par[2] = zlenB * 0.5;
281 gMC->Gsvolu("FTOB", "BOX ", idtmed[506], par, 3);
282 par[2] = zlenA * 0.5;
283 gMC->Gsvolu("FTOA", "BOX ", idtmed[506], par, 3);
286 // Positioning of modules
288 Float_t zcor1 = ztof0 - zlenC*0.5;
289 Float_t zcor2 = ztof0 - zlenC - zlenB*0.5;
292 AliMatrix(idrotm[0], 90., 0., 0., 0., 90,-90.);
293 AliMatrix(idrotm[1], 90.,180., 0., 0., 90, 90.);
294 gMC->Gspos("FTOC", 1, "BTO1", 0, zcor1, 0, idrotm[0], "ONLY");
295 gMC->Gspos("FTOC", 2, "BTO1", 0, -zcor1, 0, idrotm[1], "ONLY");
296 gMC->Gspos("FTOC", 1, "BTO2", 0, zcor1, 0, idrotm[0], "ONLY");
297 gMC->Gspos("FTOC", 2, "BTO2", 0, -zcor1, 0, idrotm[1], "ONLY");
298 gMC->Gspos("FTOC", 1, "BTO3", 0, zcor1, 0, idrotm[0], "ONLY");
299 gMC->Gspos("FTOC", 2, "BTO3", 0, -zcor1, 0, idrotm[1], "ONLY");
301 gMC->Gspos("FTOB", 1, "BTO1", 0, zcor2, 0, idrotm[0], "ONLY");
302 gMC->Gspos("FTOB", 2, "BTO1", 0, -zcor2, 0, idrotm[1], "ONLY");
303 gMC->Gspos("FTOB", 1, "BTO2", 0, zcor2, 0, idrotm[0], "ONLY");
304 gMC->Gspos("FTOB", 2, "BTO2", 0, -zcor2, 0, idrotm[1], "ONLY");
305 gMC->Gspos("FTOB", 1, "BTO3", 0, zcor2, 0, idrotm[0], "ONLY");
306 gMC->Gspos("FTOB", 2, "BTO3", 0, -zcor2, 0, idrotm[1], "ONLY");
308 gMC->Gspos("FTOA", 0, "BTO1", 0, zcor3, 0, idrotm[0], "ONLY");
309 gMC->Gspos("FTOA", 0, "BTO2", 0, zcor3, 0, idrotm[0], "ONLY");
310 gMC->Gspos("FTOA", 0, "BTO3", 0, zcor3, 0, idrotm[0], "ONLY");
312 Float_t db = 0.5;//cm
313 Float_t xFLT, xFST, yFLT, zFLTA, zFLTB, zFLTC;
321 xFST = xFLT-fDeadBndX*2;//cm
323 // Sizes of MRPC pads
325 Float_t yPad = 0.505;//cm
327 // Large not sensitive volumes with Insensitive Freon
331 cout <<"************************* TOF geometry **************************"<<endl;
333 par[2] = (zFLTA *0.5);
334 gMC->Gsvolu("FLTA", "BOX ", idtmed[512], par, 3); // Insensitive Freon
335 gMC->Gspos ("FLTA", 0, "FTOA", 0., 0., 0., 0, "ONLY");
337 par[2] = (zFLTB * 0.5);
338 gMC->Gsvolu("FLTB", "BOX ", idtmed[512], par, 3); // Insensitive Freon
339 gMC->Gspos ("FLTB", 0, "FTOB", 0., 0., 0., 0, "ONLY");
341 par[2] = (zFLTC * 0.5);
342 gMC->Gsvolu("FLTC", "BOX ", idtmed[512], par, 3); // Insensitive Freon
343 gMC->Gspos ("FLTC", 0, "FTOC", 0., 0., 0., 0, "ONLY");
345 ////////// Layers of Aluminum before and after detector //////////
346 ////////// Aluminum Box for Modules (2.0 mm thickness) /////////
347 ////////// lateral walls not simulated
350 ycoor = -yFLT/2 + par[1];
351 par[2] = (zFLTA *0.5);
352 gMC->Gsvolu("FALA", "BOX ", idtmed[508], par, 3); // Alluminium
353 gMC->Gspos ("FALA", 1, "FLTA", 0., ycoor, 0., 0, "ONLY");
354 gMC->Gspos ("FALA", 2, "FLTA", 0.,-ycoor, 0., 0, "ONLY");
355 par[2] = (zFLTB *0.5);
356 gMC->Gsvolu("FALB", "BOX ", idtmed[508], par, 3); // Alluminium
357 gMC->Gspos ("FALB", 1, "FLTB", 0., ycoor, 0., 0, "ONLY");
358 gMC->Gspos ("FALB", 2, "FLTB", 0.,-ycoor, 0., 0, "ONLY");
359 par[2] = (zFLTC *0.5);
360 gMC->Gsvolu("FALC", "BOX ", idtmed[508], par, 3); // Alluminium
361 gMC->Gspos ("FALC", 1, "FLTC", 0., ycoor, 0., 0, "ONLY");
362 gMC->Gspos ("FALC", 2, "FLTC", 0.,-ycoor, 0., 0, "ONLY");
364 ///////////////// Detector itself //////////////////////
365 const Float_t kdeadBound = fDeadBndZ; //cm non-sensitive between the pad edge
366 //and the boundary of the strip
367 const Int_t knx = fNpadX; // number of pads along x
368 const Int_t knz = fNpadZ; // number of pads along z
369 const Float_t kspace = fSpace; //cm distance from the front plate of the box
371 Float_t zSenStrip = fZpad*fNpadZ;//cm
372 Float_t stripWidth = zSenStrip + 2*kdeadBound;
375 par[2] = stripWidth*0.5;
377 // new description for strip volume -double stack strip-
378 // -- all constants are expressed in cm
379 // heigth of different layers
380 const Float_t khhony = 1. ; // heigth of HONY Layer
381 const Float_t khpcby = 0.15 ; // heigth of PCB Layer
382 const Float_t khmyly = 0.035 ; // heigth of MYLAR Layer
383 const Float_t khgraphy = 0.02 ; // heigth of GRAPHITE Layer
384 const Float_t khglasseiy = 0.17; // 0.6 Ext. Glass + 1.1 i.e. (Int. Glass/2) (mm)
385 const Float_t khsensmy = 0.11 ; // heigth of Sensitive Freon Mixture
386 const Float_t kwsensmz = 2*3.5 ; // cm
387 const Float_t klsensmx = 48*2.5; // cm
388 const Float_t kwpadz = 3.5; // cm z dimension of the FPAD volume
389 const Float_t klpadx = 2.5; // cm x dimension of the FPAD volume
391 // heigth of the FSTR Volume (the strip volume)
392 const Float_t khstripy = 2*khhony+3*khpcby+4*(khmyly+khgraphy+khglasseiy)+2*khsensmy;
393 // width of the FSTR Volume (the strip volume)
394 const Float_t kwstripz = 10.;
395 // length of the FSTR Volume (the strip volume)
396 const Float_t klstripx = 122.;
398 Float_t parfp[3]={klstripx*0.5,khstripy*0.5,kwstripz*0.5};
399 // coordinates of the strip center in the strip reference frame; used for positioning
400 // internal strip volumes
401 Float_t posfp[3]={0.,0.,0.};
404 // FSTR volume definition and filling this volume with non sensitive Gas Mixture
405 gMC->Gsvolu("FSTR","BOX",idtmed[512],parfp,3);
406 //-- HONY Layer definition
408 parfp[1] = khhony*0.5;
410 gMC->Gsvolu("FHON","BOX",idtmed[503],parfp,3);
411 // positioning 2 HONY Layers on FSTR volume
413 posfp[1]=-khstripy*0.5+parfp[1];
414 gMC->Gspos("FHON",1,"FSTR",0., posfp[1],0.,0,"ONLY");
415 gMC->Gspos("FHON",2,"FSTR",0.,-posfp[1],0.,0,"ONLY");
417 //-- PCB Layer definition
418 parfp[1] = khpcby*0.5;
419 gMC->Gsvolu("FPCB","BOX",idtmed[504],parfp,3);
420 // positioning 2 PCB Layers on FSTR volume
421 posfp[1]=-khstripy*0.5+khhony+parfp[1];
422 gMC->Gspos("FPCB",1,"FSTR",0., posfp[1],0.,0,"ONLY");
423 gMC->Gspos("FPCB",2,"FSTR",0.,-posfp[1],0.,0,"ONLY");
424 // positioning the central PCB layer
425 gMC->Gspos("FPCB",3,"FSTR",0.,0.,0.,0,"ONLY");
429 //-- MYLAR Layer definition
430 parfp[1] = khmyly*0.5;
431 gMC->Gsvolu("FMYL","BOX",idtmed[511],parfp,3);
432 // positioning 2 MYLAR Layers on FSTR volume
433 posfp[1] = -khstripy*0.5+khhony+khpcby+parfp[1];
434 gMC->Gspos("FMYL",1,"FSTR",0., posfp[1],0.,0,"ONLY");
435 gMC->Gspos("FMYL",2,"FSTR",0.,-posfp[1],0.,0,"ONLY");
436 // adding further 2 MYLAR Layers on FSTR volume
437 posfp[1] = khpcby*0.5+parfp[1];
438 gMC->Gspos("FMYL",3,"FSTR",0., posfp[1],0.,0,"ONLY");
439 gMC->Gspos("FMYL",4,"FSTR",0.,-posfp[1],0.,0,"ONLY");
442 //-- Graphite Layer definition
443 parfp[1] = khgraphy*0.5;
444 gMC->Gsvolu("FGRP","BOX",idtmed[502],parfp,3);
445 // positioning 2 Graphite Layers on FSTR volume
446 posfp[1] = -khstripy*0.5+khhony+khpcby+khmyly+parfp[1];
447 gMC->Gspos("FGRP",1,"FSTR",0., posfp[1],0.,0,"ONLY");
448 gMC->Gspos("FGRP",2,"FSTR",0.,-posfp[1],0.,0,"ONLY");
449 // adding further 2 Graphite Layers on FSTR volume
450 posfp[1] = khpcby*0.5+khmyly+parfp[1];
451 gMC->Gspos("FGRP",3,"FSTR",0., posfp[1],0.,0,"ONLY");
452 gMC->Gspos("FGRP",4,"FSTR",0.,-posfp[1],0.,0,"ONLY");
455 //-- Glass (EXT. +Semi INT.) Layer definition
456 parfp[1] = khglasseiy*0.5;
457 gMC->Gsvolu("FGLA","BOX",idtmed[514],parfp,3);
458 // positioning 2 Glass Layers on FSTR volume
459 posfp[1] = -khstripy*0.5+khhony+khpcby+khmyly+khgraphy+parfp[1];
460 gMC->Gspos("FGLA",1,"FSTR",0., posfp[1],0.,0,"ONLY");
461 gMC->Gspos("FGLA",2,"FSTR",0.,-posfp[1],0.,0,"ONLY");
462 // adding further 2 Glass Layers on FSTR volume
463 posfp[1] = khpcby*0.5+khmyly+khgraphy+parfp[1];
464 gMC->Gspos("FGLA",3,"FSTR",0., posfp[1],0.,0,"ONLY");
465 gMC->Gspos("FGLA",4,"FSTR",0.,-posfp[1],0.,0,"ONLY");
468 //-- Sensitive Mixture Layer definition
469 parfp[0] = klsensmx*0.5;
470 parfp[1] = khsensmy*0.5;
471 parfp[2] = kwsensmz*0.5;
472 gMC->Gsvolu("FSEN","BOX",idtmed[513],parfp,3);
473 gMC->Gsvolu("FNSE","BOX",idtmed[512],parfp,3);
474 // positioning 2 gas Layers on FSTR volume
475 // the upper is insensitive freon
476 // while the remaining is sensitive
477 posfp[1] = khpcby*0.5+khmyly+khgraphy+khglasseiy+parfp[1];
478 gMC->Gspos("FNSE",0,"FSTR", 0., posfp[1],0.,0,"ONLY");
479 gMC->Gspos("FSEN",0,"FSTR", 0.,-posfp[1],0.,0,"ONLY");
481 // dividing FSEN along z in knz=2 and along x in knx=48
482 gMC->Gsdvn("FSEZ","FSEN",knz,3);
483 gMC->Gsdvn("FSEX","FSEZ",knx,1);
485 // FPAD volume definition
486 parfp[0] = klpadx*0.5;
487 parfp[1] = khsensmy*0.5;
488 parfp[2] = kwpadz*0.5;
489 gMC->Gsvolu("FPAD","BOX",idtmed[513],parfp,3);
490 // positioning the FPAD volumes on previous divisions
491 gMC->Gspos("FPAD",0,"FSEX",0.,0.,0.,0,"ONLY");
493 //// Positioning the Strips (FSTR) in the FLT volumes /////
497 Float_t t = zFLTC+zFLTB+zFLTA*0.5+ 2*db;//Half Width of Barrel
499 Float_t gap = fGapA+0.5; //cm updated distance between the strip axis
505 ycoor = -14.5 + kspace ; //2 cm over front plate
507 AliMatrix (idrotm[0], 90., 0.,90.,90.,0., 90.);
508 gMC->Gspos("FSTR",j,"FLTA",0.,ycoor, 0.,idrotm[0],"ONLY");
510 printf("%f, St. %2i, Pl.3 ",ang*kRaddeg,i);
511 printf("y = %f, z = %f, zpos = %f \n",ycoor,zcoor,zpos);
515 Int_t upDown = -1; // upDown=-1 -> Upper strip
516 // upDown=+1 -> Lower strip
518 ang = atan(zcoor/radius);
520 AliMatrix (idrotm[nrot], 90., 0.,90.-ang,90.,-ang, 90.);
521 AliMatrix (idrotm[nrot+1],90.,180.,90.+ang,90., ang, 90.);
523 ycoor = -14.5+ kspace; //2 cm over front plate
524 ycoor += (1-(upDown+1)/2)*gap;
525 gMC->Gspos("FSTR",j ,"FLTA",0.,ycoor, zcoor,idrotm[nrot], "ONLY");
526 gMC->Gspos("FSTR",j+1,"FLTA",0.,ycoor,-zcoor,idrotm[nrot+1],"ONLY");
528 printf("%f, St. %2i, Pl.3 ",ang*kRaddeg,i);
529 printf("y = %f, z = %f, zpos = %f \n",ycoor,zcoor,zpos);
532 upDown*= -1; // Alternate strips
533 zcoor = zcoor-(zSenStrip/2)/TMath::Cos(ang)-
534 upDown*gap*TMath::Tan(ang)-
535 (zSenStrip/2)/TMath::Cos(ang);
536 } while (zcoor-(stripWidth/2)*TMath::Cos(ang)>-t+zFLTC+zFLTB+db*2);
538 zcoor = zcoor+(zSenStrip/2)/TMath::Cos(ang)+
539 upDown*gap*TMath::Tan(ang)+
540 (zSenStrip/2)/TMath::Cos(ang);
543 zcoor = zcoor-(zSenStrip/2)/TMath::Cos(ang)-
544 upDown*gap*TMath::Tan(ang)-
545 (zSenStrip/2)/TMath::Cos(ang);
547 ang = atan(zcoor/radius);
549 AliMatrix (idrotm[nrot], 90., 0.,90.-ang,90.,-ang, 90.);
550 AliMatrix (idrotm[nrot+1],90.,180.,90.+ang,90., ang, 90.);
553 ycoor = -14.5+ kspace; //2 cm over front plate
554 ycoor += (1-(upDown+1)/2)*gap;
555 gMC->Gspos("FSTR",j ,"FLTA",0.,ycoor, zcoor,idrotm[nrot], "ONLY");
556 gMC->Gspos("FSTR",j+1,"FLTA",0.,ycoor,-zcoor,idrotm[nrot+1],"ONLY");
557 printf("%f, St. %2i, Pl.3 ",ang*kRaddeg,i);
558 printf("y = %f, z = %f, zpos = %f \n",ycoor,zcoor,zpos);
560 ycoor = -hTof/2.+ kspace;//2 cm over front plate
567 Float_t deadRegion = 1.0;//cm
569 zpos = zcoor - (zSenStrip/2)/TMath::Cos(ang)-
570 upDown*gap*TMath::Tan(ang)-
571 (zSenStrip/2)/TMath::Cos(ang)-
572 deadRegion/TMath::Cos(ang);
574 ang = atan(zpos/radius);
576 AliMatrix (idrotm[nrot], 90., 0., 90.-ang,90.,ang, 270.);
578 ycoor = -hTof*0.5+ kspace ; //2 cm over front plate
579 ycoor += (1-(upDown+1)/2)*gap;
580 zcoor = zpos+(zFLTA*0.5+zFLTB*0.5+db); // Moves to the system of the modulus FLTB
581 gMC->Gspos("FSTR",i, "FLTB", 0., ycoor, zcoor,idrotm[nrot], "ONLY");
583 printf("%f, St. %2i, Pl.4 ",ang*kRaddeg,i);
584 printf("y = %f, z = %f, zpos = %f \n",ycoor,zcoor,zpos);
590 zpos = zpos - (zSenStrip/2)/TMath::Cos(ang)-
591 upDown*gap*TMath::Tan(ang)-
592 (zSenStrip/2)/TMath::Cos(ang);
593 ang = atan(zpos/radius);
595 AliMatrix (idrotm[nrot], 90., 0., 90.-ang,90.,ang, 270.);
597 Float_t deltaSpaceinB=-0.5; // [cm] to avoid overlaps with the end of freon frame
598 Float_t deltaGapinB=0.5; // [cm] to avoid overlaps in between initial strips
599 ycoor = -hTof*0.5+ kspace+deltaSpaceinB ; //2 cm over front plate
600 ycoor += (1-(upDown+1)/2)*(gap+deltaGapinB);
601 zcoor = zpos+(zFLTA*0.5+zFLTB*0.5+db); // Moves to the system of the modulus FLTB
602 gMC->Gspos("FSTR",i, "FLTB", 0., ycoor, zcoor,idrotm[nrot], "ONLY");
604 printf("%f, St. %2i, Pl.4 ",ang*kRaddeg,i);
605 printf("y = %f, z = %f, zpos = %f \n",ycoor,zcoor,zpos);
609 } while (TMath::Abs(ang*kRaddeg)<22.5);
610 //till we reach a tilting angle of 22.5 degrees
612 ycoor = -hTof*0.5+ kspace ; //2 cm over front plate
613 zpos = zpos - zSenStrip/TMath::Cos(ang);
614 // this avoid overlaps in between outer strips in plate B
615 Float_t deltaMovingUp=0.8; // [cm]
616 Float_t deltaMovingDown=-0.5; // [cm]
619 ang = atan(zpos/radius);
621 AliMatrix (idrotm[nrot], 90., 0., 90.-ang,90.,ang, 270.);
623 zcoor = zpos+(zFLTB/2+zFLTA/2+db);
624 gMC->Gspos("FSTR",i, "FLTB", 0., ycoor+deltaMovingDown+deltaMovingUp, zcoor,idrotm[nrot], "ONLY");
625 deltaMovingUp+=0.8; // update delta moving toward the end of the plate
626 zpos = zpos - zSenStrip/TMath::Cos(ang);
627 printf("%f, St. %2i, Pl.4 ",ang*kRaddeg,i);
628 printf("y = %f, z = %f, zpos = %f \n",ycoor,zcoor,zpos);
630 } while (zpos-stripWidth*0.5/TMath::Cos(ang)>-t+zFLTC+db);
634 zpos = zpos + zSenStrip/TMath::Cos(ang);
636 zpos = zpos - (zSenStrip/2)/TMath::Cos(ang)+
638 (zSenStrip/2)/TMath::Cos(ang);
642 Float_t deltaGap=-2.5; // [cm] update distance from strip center and plate
643 ycoor= -hTof*0.5+kspace+gap+deltaGap;
647 ang = atan(zpos/radius);
649 AliMatrix (idrotm[nrot], 90., 0., 90.-ang,90.,ang, 270.);
651 zcoor = zpos+(zFLTC*0.5+zFLTB+zFLTA*0.5+db*2);
652 gMC->Gspos("FSTR",i, "FLTC", 0., ycoor, zcoor,idrotm[nrot], "ONLY");
654 printf("%f, St. %2i, Pl.5 ",ang*kRaddeg,i);
655 printf("y = %f, z = %f, zpos = %f \n",ycoor,zcoor,zpos);
657 zpos = zpos - zSenStrip/TMath::Cos(ang);
658 } while (zpos-stripWidth*TMath::Cos(ang)*0.5>-t);
661 ////////// Layers after strips /////////////////
662 // honeycomb (Polyethilene) Layer after (1.2cm)
664 Float_t overSpace = fOverSpc;//cm
668 par[2] = (zFLTA *0.5);
669 ycoor = -yFLT/2 + overSpace + par[1];
670 gMC->Gsvolu("FPEA", "BOX ", idtmed[503], par, 3); // Hony
671 gMC->Gspos ("FPEA", 0, "FLTA", 0., ycoor, 0., 0, "ONLY");
672 par[2] = (zFLTB *0.5);
673 gMC->Gsvolu("FPEB", "BOX ", idtmed[503], par, 3); // Hony
674 gMC->Gspos ("FPEB", 0, "FLTB", 0., ycoor, 0., 0, "ONLY");
675 par[2] = (zFLTC *0.5);
676 gMC->Gsvolu("FPEC", "BOX ", idtmed[503], par, 3); // Hony
677 gMC->Gspos ("FPEC", 0, "FLTC", 0., ycoor, 0., 0, "ONLY");
679 // Electronics (Cu) after
682 par[1] = 1.43*0.05*0.5; // 5% of X0
683 par[2] = (zFLTA *0.5);
685 gMC->Gsvolu("FECA", "BOX ", idtmed[501], par, 3); // Cu
686 gMC->Gspos ("FECA", 0, "FLTA", 0., ycoor, 0., 0, "ONLY");
687 par[2] = (zFLTB *0.5);
688 gMC->Gsvolu("FECB", "BOX ", idtmed[501], par, 3); // Cu
689 gMC->Gspos ("FECB", 0, "FLTB", 0., ycoor, 0., 0, "ONLY");
690 par[2] = (zFLTC *0.5);
691 gMC->Gsvolu("FECC", "BOX ", idtmed[501], par, 3); // Cu
692 gMC->Gspos ("FECC", 0, "FLTC", 0., ycoor, 0., 0, "ONLY");
694 // cooling WAter after
697 par[1] = 36.1*0.02*0.5; // 2% of X0
698 par[2] = (zFLTA *0.5);
700 gMC->Gsvolu("FWAA", "BOX ", idtmed[515], par, 3); // Water
701 gMC->Gspos ("FWAA", 0, "FLTA", 0., ycoor, 0., 0, "ONLY");
702 par[2] = (zFLTB *0.5);
703 gMC->Gsvolu("FWAB", "BOX ", idtmed[515], par, 3); // Water
704 gMC->Gspos ("FWAB", 0, "FLTB", 0., ycoor, 0., 0, "ONLY");
705 par[2] = (zFLTC *0.5);
706 gMC->Gsvolu("FWAC", "BOX ", idtmed[515], par, 3); // Water
707 gMC->Gspos ("FWAC", 0, "FLTC", 0., ycoor, 0., 0, "ONLY");
712 par[1] = (yFLT/2-ycoor-0.2)*0.5; // Aluminum layer considered (0.2 cm)
713 par[2] = (zFLTA *0.5);
715 gMC->Gsvolu("FAIA", "BOX ", idtmed[500], par, 3); // Air
716 gMC->Gspos ("FAIA", 0, "FLTA", 0., ycoor, 0., 0, "ONLY");
717 par[2] = (zFLTB *0.5);
718 gMC->Gsvolu("FAIB", "BOX ", idtmed[500], par, 3); // Air
719 gMC->Gspos ("FAIB", 0, "FLTB", 0., ycoor, 0., 0, "ONLY");
720 par[2] = (zFLTC *0.5);
721 gMC->Gsvolu("FAIC", "BOX ", idtmed[500], par, 3); // Air
722 gMC->Gspos ("FAIC", 0, "FLTC", 0., ycoor, 0., 0, "ONLY");
724 //Back Plate honycomb (2cm)
728 ycoor = yFLT/2 - par[1];
729 gMC->Gsvolu("FBPA", "BOX ", idtmed[503], par, 3); // Hony
730 gMC->Gspos ("FBPA", 0, "FLTA", 0., ycoor, 0., 0, "ONLY");
731 gMC->Gsvolu("FBPB", "BOX ", idtmed[503], par, 3); // Hony
732 gMC->Gspos ("FBPB", 0, "FLTB", 0., ycoor, 0., 0, "ONLY");
733 gMC->Gsvolu("FBPC", "BOX ", idtmed[503], par, 3); // Hony
734 gMC->Gspos ("FBPC", 0, "FLTC", 0., ycoor, 0., 0, "ONLY");
738 //_____________________________________________________________________________
739 void AliTOFv0::DrawModule() const
742 // Draw a shaded view of the Time Of Flight version 0
744 // Set everything unseen
745 gMC->Gsatt("*", "seen", -1);
747 // Set ALIC mother transparent
748 gMC->Gsatt("ALIC","SEEN",0);
750 // Set the volumes visible
751 gMC->Gsatt("ALIC","SEEN",0);
753 gMC->Gsatt("FTOA","SEEN",1);
754 gMC->Gsatt("FTOB","SEEN",1);
755 gMC->Gsatt("FTOC","SEEN",1);
756 gMC->Gsatt("FLTA","SEEN",1);
757 gMC->Gsatt("FLTB","SEEN",1);
758 gMC->Gsatt("FLTC","SEEN",1);
759 gMC->Gsatt("FPLA","SEEN",1);
760 gMC->Gsatt("FPLB","SEEN",1);
761 gMC->Gsatt("FPLC","SEEN",1);
762 gMC->Gsatt("FSTR","SEEN",1);
763 gMC->Gsatt("FPEA","SEEN",1);
764 gMC->Gsatt("FPEB","SEEN",1);
765 gMC->Gsatt("FPEC","SEEN",1);
767 gMC->Gsatt("FLZ1","SEEN",0);
768 gMC->Gsatt("FLZ2","SEEN",0);
769 gMC->Gsatt("FLZ3","SEEN",0);
770 gMC->Gsatt("FLX1","SEEN",0);
771 gMC->Gsatt("FLX2","SEEN",0);
772 gMC->Gsatt("FLX3","SEEN",0);
773 gMC->Gsatt("FPAD","SEEN",0);
775 gMC->Gdopt("hide", "on");
776 gMC->Gdopt("shad", "on");
777 gMC->Gsatt("*", "fill", 7);
778 gMC->SetClipBox(".");
779 gMC->SetClipBox("*", 0, 1000, -1000, 1000, -1000, 1000);
781 gMC->Gdraw("alic", 40, 30, 0, 12, 9.5, .02, .02);
782 gMC->Gdhead(1111, "Time Of Flight");
783 gMC->Gdman(18, 4, "MAN");
784 gMC->Gdopt("hide","off");
786 //_____________________________________________________________________________
787 void AliTOFv0::DrawDetectorModules()
790 // Draw a shaded view of the TOF detector version 0
793 AliMC* pMC = AliMC::GetMC();
795 //Set ALIC mother transparent
796 pMC->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 AliMC* pMC = AliMC::GetMC();
868 //Set ALIC mother transparent
869 pMC->Gsatt("ALIC","SEEN",0);
872 //Set volumes visible
874 // Level 1 for TOF volumes
875 gMC->Gsatt("B077","seen",0);
877 //==========> Level 2
879 gMC->Gsatt("B076","seen",-1); // all B076 sub-levels skipped -
880 gMC->Gsatt("B071","seen",0);
881 gMC->Gsatt("B074","seen",0);
882 gMC->Gsatt("B075","seen",0);
883 gMC->Gsatt("B080","seen",0); // B080 does not has sub-level
886 gMC->Gsatt("B063","seen",-1); // all B063 sub-levels skipped -
887 gMC->Gsatt("B065","seen",-1); // all B065 sub-levels skipped -
888 gMC->Gsatt("B067","seen",-1); // all B067 sub-levels skipped -
889 gMC->Gsatt("B069","seen",-1); // all B069 sub-levels skipped -
890 gMC->Gsatt("B056","seen",0); // B056 does not has sub-levels -
891 gMC->Gsatt("B059","seen",-1); // all B059 sub-levels skipped -
892 gMC->Gsatt("B072","seen",-1); // all B072 sub-levels skipped -
893 gMC->Gsatt("BTR1","seen",0); // BTR1 do not have sub-levels -
894 gMC->Gsatt("BTO1","seen",0);
896 // ==================> Level 3
897 // Level 3 of B071 / Level 2 of BTO1
898 gMC->Gsatt("FTOC","seen",0);
899 gMC->Gsatt("FTOB","seen",0);
900 gMC->Gsatt("FTOA","seen",0);
902 // Level 3 of B074 / Level 2 of BTO2
903 // -> cfr previous settings
905 // Level 3 of B075 / Level 2 of BTO3
906 // -> cfr previous settings
909 // ==========================> Level 4
910 // Level 4 of B071 / Level 3 of BTO1 / Level 2 of FTOC
911 gMC->Gsatt("FLTC","seen",0);
912 // Level 4 of B071 / Level 3 of BTO1 / Level 2 of FTOB
913 gMC->Gsatt("FLTB","seen",0);
914 // Level 4 of B071 / Level 3 of BTO1 / Level 2 of FTOA
915 gMC->Gsatt("FLTA","seen",0);
917 // Level 4 of B074 / Level 3 of BTO2 / Level 2 of FTOC
918 // -> cfr previous settings
919 // Level 4 of B074 / Level 3 of BTO2 / Level 2 of FTOB
920 // -> cfr previous settings
922 // Level 4 of B075 / Level 3 of BTO3 / Level 2 of FTOC
923 // -> cfr previous settings
925 //======================================> Level 5
926 // Level 5 of B071 / Level 4 of BTO1 / Level 3 of FTOC / Level 2 of FLTC
927 gMC->Gsatt("FALC","seen",0); // no children for FALC
928 gMC->Gsatt("FSTR","seen",-2);
929 gMC->Gsatt("FPEC","seen",0); // no children for FPEC
930 gMC->Gsatt("FECC","seen",0); // no children for FECC
931 gMC->Gsatt("FWAC","seen",0); // no children for FWAC
932 gMC->Gsatt("FAIC","seen",0); // no children for FAIC
934 // Level 5 of B071 / Level 4 of BTO1 / Level 3 of FTOB / Level 2 of FLTB
935 gMC->Gsatt("FALB","seen",0); // no children for FALB
936 //--> gMC->Gsatt("FSTR","seen",-2);
939 // -> cfr previous settings
940 gMC->Gsatt("FPEB","seen",0); // no children for FPEB
941 gMC->Gsatt("FECB","seen",0); // no children for FECB
942 gMC->Gsatt("FWAB","seen",0); // no children for FWAB
943 gMC->Gsatt("FAIB","seen",0); // no children for FAIB
945 // Level 5 of B071 / Level 4 of BTO1 / Level 3 of FTOA / Level 2 of FLTA
946 gMC->Gsatt("FALA","seen",0); // no children for FALB
947 //--> gMC->Gsatt("FSTR","seen",-2);
948 // -> cfr previous settings
949 gMC->Gsatt("FPEA","seen",0); // no children for FPEA
950 gMC->Gsatt("FECA","seen",0); // no children for FECA
951 gMC->Gsatt("FWAA","seen",0); // no children for FWAA
952 gMC->Gsatt("FAIA","seen",0); // no children for FAIA
955 gMC->Gsatt("BTR2","seen",0); // BTR2 does not has sub-levels -
956 gMC->Gsatt("BTO2","seen",0);
959 gMC->Gsatt("BTR3","seen",0); // BTR3 do not have sub-levels -
960 gMC->Gsatt("BTO3","seen",0);
962 // for others Level 5, cfr. previous settings
964 gMC->Gdopt("hide","on");
965 gMC->Gdopt("shad","on");
966 gMC->Gsatt("*", "fill", 5);
967 gMC->SetClipBox(".");
968 gMC->SetClipBox("*", 0, 1000, 0, 1000, 0, 1000);
970 gMC->Gdraw("alic", 45, 40, 0, 10, 10, .015, .015);
971 gMC->Gdhead(1111,"TOF Strips V1");
972 gMC->Gdman(18, 4, "MAN");
973 gMC->Gdopt("hide","off");
976 //_____________________________________________________________________________
977 void AliTOFv0::CreateMaterials()
980 // Define materials for the Time Of Flight
982 AliTOF::CreateMaterials();
985 //_____________________________________________________________________________
986 void AliTOFv0::Init()
989 // Initialise the detector after the geometry has been defined
991 printf("**************************************"
993 "**************************************\n");
994 printf("\n Version 0 of TOF initialing, "
995 "symmetric TOF - Full Coverage version\n");
999 fIdFTOA = gMC->VolId("FTOA");
1000 fIdFTOB = gMC->VolId("FTOB");
1001 fIdFTOC = gMC->VolId("FTOC");
1002 fIdFLTA = gMC->VolId("FLTA");
1003 fIdFLTB = gMC->VolId("FLTB");
1004 fIdFLTC = gMC->VolId("FLTC");
1007 printf("%s: **************************************"
1009 "**************************************\n",ClassName());
1013 //_____________________________________________________________________________
1014 void AliTOFv0::StepManager()
1017 // Procedure called at each step in the Time Of Flight
1019 TLorentzVector mom, pos;
1020 Float_t xm[3],pm[3],xpad[3],ppad[3];
1021 Float_t hits[13],phi,phid,z;
1023 Int_t sector, plate, padx, padz, strip;
1024 Int_t copy, padzid, padxid, stripid, i;
1025 Int_t *idtmed = fIdtmed->GetArray()-499;
1026 Float_t incidenceAngle;
1028 if(gMC->GetMedium()==idtmed[513] &&
1029 gMC->IsTrackEntering() && gMC->TrackCharge()
1030 && gMC->CurrentVolID(copy)==fIdSens)
1032 // getting information about hit volumes
1034 padzid=gMC->CurrentVolOffID(2,copy);
1037 padxid=gMC->CurrentVolOffID(1,copy);
1040 stripid=gMC->CurrentVolOffID(4,copy);
1043 gMC->TrackPosition(pos);
1044 gMC->TrackMomentum(mom);
1046 // Double_t NormPos=1./pos.Rho();
1047 Double_t normMom=1./mom.Rho();
1049 // getting the cohordinates in pad ref system
1050 xm[0] = (Float_t)pos.X();
1051 xm[1] = (Float_t)pos.Y();
1052 xm[2] = (Float_t)pos.Z();
1054 pm[0] = (Float_t)mom.X()*normMom;
1055 pm[1] = (Float_t)mom.Y()*normMom;
1056 pm[2] = (Float_t)mom.Z()*normMom;
1058 gMC->Gmtod(xm,xpad,1);
1059 gMC->Gmtod(pm,ppad,2);
1061 incidenceAngle = TMath::ACos(ppad[1])*kRaddeg;
1066 if (TMath::Abs(z) <= fZlenA*0.5) plate = 3;
1067 if (z < (fZlenA*0.5+fZlenB) &&
1068 z > fZlenA*0.5) plate = 4;
1069 if (z >-(fZlenA*0.5+fZlenB) &&
1070 z < -fZlenA*0.5) plate = 2;
1071 if (z > (fZlenA*0.5+fZlenB)) plate = 5;
1072 if (z <-(fZlenA*0.5+fZlenB)) plate = 1;
1075 phid = phi*kRaddeg+180.;
1076 sector = Int_t (phid/20.);
1084 hits[6] = mom.Rho();
1089 hits[11]= incidenceAngle;
1090 hits[12]= gMC->Edep();
1098 AddHit(gAlice->CurrentTrack(),vol, hits);