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 1.17 2002/06/24 14:09:12 vicinanz
19 review on materials and
21 Revision 1.16 2002/05/08 13:24:50 vicinanz
22 AliTOFanalyzeMatching.C macro added and minor changes to the AliTOF code
24 Revision 1.15 2001/11/22 11:22:51 hristov
25 Updated version of TOF digitization, N^2 problem solved (J.Chudoba)
27 Revision 1.13 2001/09/27 10:39:21 vicinanz
28 SDigitizer and Merger added
30 Revision 1.12 2001/09/20 15:54:22 vicinanz
31 Updated Strip Structure (Double Stack)
33 Revision 1.11 2001/08/28 08:45:59 vicinanz
34 TTask and TFolder structures implemented
36 Revision 1.10 2001/05/16 14:57:24 alibrary
37 New files for folders and Stack
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 4 of the Time Of Flight //
82 // VERSION WITH 5 MODULES AND TILTED STRIPS
84 // FULL COVERAGE VERSION
91 // University of Salerno - Italy
94 // University of Bologna - Italy
99 <img src="picts/AliTOFv4Class.gif">
103 ///////////////////////////////////////////////////////////////////////////////
105 #include <iostream.h>
108 #include "AliTOFv4.h"
110 #include "TGeometry.h"
112 #include <TLorentzVector.h>
116 #include "AliConst.h"
121 //_____________________________________________________________________________
125 // Default constructor
129 //_____________________________________________________________________________
130 AliTOFv4::AliTOFv4(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 AliTOFv4::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 AliTOFv4::CreateGeometry()
243 // Create geometry for Time Of Flight version 0
247 <img src="picts/AliTOFv4.gif">
251 // Creates common geometry
253 AliTOF::CreateGeometry();
256 //_____________________________________________________________________________
257 void AliTOFv4::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 if (fDebug) cout << ClassName() <<
329 ": ************************* TOF geometry **************************"<<endl;
331 par[2] = (zFLTA *0.5);
332 gMC->Gsvolu("FLTA", "BOX ", idtmed[512], par, 3); // Insensitive Freon
333 gMC->Gspos ("FLTA", 0, "FTOA", 0., 0., 0., 0, "ONLY");
335 par[2] = (zFLTB * 0.5);
336 gMC->Gsvolu("FLTB", "BOX ", idtmed[512], par, 3); // Insensitive Freon
337 gMC->Gspos ("FLTB", 0, "FTOB", 0., 0., 0., 0, "ONLY");
339 par[2] = (zFLTC * 0.5);
340 gMC->Gsvolu("FLTC", "BOX ", idtmed[512], par, 3); // Insensitive Freon
341 gMC->Gspos ("FLTC", 0, "FTOC", 0., 0., 0., 0, "ONLY");
343 ///// Layers of Aluminum before and after detector /////
344 ///// Aluminum Box for Modules (1.8 mm thickness) /////
345 ///// lateral walls not simulated for the time being
346 //const Float_t khAlWall = 0.18;
348 const Float_t khAlWall = 0.11;
350 par[1] = khAlWall/2.;//cm
351 ycoor = -yFLT/2 + par[1];
352 par[2] = (zFLTA *0.5);
353 gMC->Gsvolu("FALA", "BOX ", idtmed[508], par, 3); // Alluminium
354 gMC->Gspos ("FALA", 1, "FLTA", 0., ycoor, 0., 0, "ONLY");
355 gMC->Gspos ("FALA", 2, "FLTA", 0.,-ycoor, 0., 0, "ONLY");
356 par[2] = (zFLTB *0.5);
357 gMC->Gsvolu("FALB", "BOX ", idtmed[508], par, 3); // Alluminium
358 gMC->Gspos ("FALB", 1, "FLTB", 0., ycoor, 0., 0, "ONLY");
359 gMC->Gspos ("FALB", 2, "FLTB", 0.,-ycoor, 0., 0, "ONLY");
360 par[2] = (zFLTC *0.5);
361 gMC->Gsvolu("FALC", "BOX ", idtmed[508], par, 3); // Alluminium
362 gMC->Gspos ("FALC", 1, "FLTC", 0., ycoor, 0., 0, "ONLY");
363 gMC->Gspos ("FALC", 2, "FLTC", 0.,-ycoor, 0., 0, "ONLY");
365 ///////////////// 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;
378 par[2] = stripWidth*0.5;
380 // new description for strip volume -double stack strip-
381 // -- all constants are expressed in cm
382 // heigth of different layers
383 const Float_t khhony = 0.8 ; // heigth of HONY Layer
384 const Float_t khpcby = 0.08 ; // heigth of PCB Layer
385 const Float_t khmyly = 0.035 ; // heigth of MYLAR Layer
386 const Float_t khgraphy = 0.02 ; // heigth of GRAPHITE Layer
387 const Float_t khglasseiy = 0.135; // 0.6 Ext. Glass + 1.1 i.e. (Int. Glass/2) (mm)
388 const Float_t khsensmy = 0.11 ; // heigth of Sensitive Freon Mixture
389 const Float_t kwsensmz = 2*3.5 ; // cm
390 const Float_t klsensmx = 48*2.5; // cm
391 const Float_t kwpadz = 3.5; // cm z dimension of the FPAD volume
392 const Float_t klpadx = 2.5; // cm x dimension of the FPAD volume
394 // heigth of the FSTR Volume (the strip volume)
395 const Float_t khstripy = 2*khhony+3*khpcby+4*(khmyly+khgraphy+khglasseiy)+2*khsensmy;
396 // width of the FSTR Volume (the strip volume)
397 const Float_t kwstripz = 10.;
398 // length of the FSTR Volume (the strip volume)
399 const Float_t klstripx = 122.;
401 Float_t parfp[3]={klstripx*0.5,khstripy*0.5,kwstripz*0.5};
402 // coordinates of the strip center in the strip reference frame; used for positioning
403 // internal strip volumes
404 Float_t posfp[3]={0.,0.,0.};
407 // FSTR volume definition and filling this volume with non sensitive Gas Mixture
408 gMC->Gsvolu("FSTR","BOX",idtmed[512],parfp,3);
409 //-- HONY Layer definition
411 parfp[1] = khhony*0.5;
413 gMC->Gsvolu("FHON","BOX",idtmed[503],parfp,3);
414 // positioning 2 HONY Layers on FSTR volume
416 posfp[1]=-khstripy*0.5+parfp[1];
417 gMC->Gspos("FHON",1,"FSTR",0., posfp[1],0.,0,"ONLY");
418 gMC->Gspos("FHON",2,"FSTR",0.,-posfp[1],0.,0,"ONLY");
420 //-- PCB Layer definition
421 parfp[1] = khpcby*0.5;
422 gMC->Gsvolu("FPCB","BOX",idtmed[504],parfp,3);
423 // positioning 2 PCB Layers on FSTR volume
424 posfp[1]=-khstripy*0.5+khhony+parfp[1];
425 gMC->Gspos("FPCB",1,"FSTR",0., posfp[1],0.,0,"ONLY");
426 gMC->Gspos("FPCB",2,"FSTR",0.,-posfp[1],0.,0,"ONLY");
427 // positioning the central PCB layer
428 gMC->Gspos("FPCB",3,"FSTR",0.,0.,0.,0,"ONLY");
432 //-- MYLAR Layer definition
433 parfp[1] = khmyly*0.5;
434 gMC->Gsvolu("FMYL","BOX",idtmed[511],parfp,3);
435 // positioning 2 MYLAR Layers on FSTR volume
436 posfp[1] = -khstripy*0.5+khhony+khpcby+parfp[1];
437 gMC->Gspos("FMYL",1,"FSTR",0., posfp[1],0.,0,"ONLY");
438 gMC->Gspos("FMYL",2,"FSTR",0.,-posfp[1],0.,0,"ONLY");
439 // adding further 2 MYLAR Layers on FSTR volume
440 posfp[1] = khpcby*0.5+parfp[1];
441 gMC->Gspos("FMYL",3,"FSTR",0., posfp[1],0.,0,"ONLY");
442 gMC->Gspos("FMYL",4,"FSTR",0.,-posfp[1],0.,0,"ONLY");
445 //-- Graphite Layer definition
446 parfp[1] = khgraphy*0.5;
447 gMC->Gsvolu("FGRP","BOX",idtmed[502],parfp,3);
448 // positioning 2 Graphite Layers on FSTR volume
449 posfp[1] = -khstripy*0.5+khhony+khpcby+khmyly+parfp[1];
450 gMC->Gspos("FGRP",1,"FSTR",0., posfp[1],0.,0,"ONLY");
451 gMC->Gspos("FGRP",2,"FSTR",0.,-posfp[1],0.,0,"ONLY");
452 // adding further 2 Graphite Layers on FSTR volume
453 posfp[1] = khpcby*0.5+khmyly+parfp[1];
454 gMC->Gspos("FGRP",3,"FSTR",0., posfp[1],0.,0,"ONLY");
455 gMC->Gspos("FGRP",4,"FSTR",0.,-posfp[1],0.,0,"ONLY");
458 //-- Glass (EXT. +Semi INT.) Layer definition
459 parfp[1] = khglasseiy*0.5;
460 gMC->Gsvolu("FGLA","BOX",idtmed[514],parfp,3);
461 // positioning 2 Glass Layers on FSTR volume
462 posfp[1] = -khstripy*0.5+khhony+khpcby+khmyly+khgraphy+parfp[1];
463 gMC->Gspos("FGLA",1,"FSTR",0., posfp[1],0.,0,"ONLY");
464 gMC->Gspos("FGLA",2,"FSTR",0.,-posfp[1],0.,0,"ONLY");
465 // adding further 2 Glass Layers on FSTR volume
466 posfp[1] = khpcby*0.5+khmyly+khgraphy+parfp[1];
467 gMC->Gspos("FGLA",3,"FSTR",0., posfp[1],0.,0,"ONLY");
468 gMC->Gspos("FGLA",4,"FSTR",0.,-posfp[1],0.,0,"ONLY");
471 //-- Sensitive Mixture Layer definition
472 parfp[0] = klsensmx*0.5;
473 parfp[1] = khsensmy*0.5;
474 parfp[2] = kwsensmz*0.5;
475 gMC->Gsvolu("FSEN","BOX",idtmed[513],parfp,3);
476 gMC->Gsvolu("FNSE","BOX",idtmed[512],parfp,3);
477 // positioning 2 gas Layers on FSTR volume
478 // the upper is insensitive freon
479 // while the remaining is sensitive
480 posfp[1] = khpcby*0.5+khmyly+khgraphy+khglasseiy+parfp[1];
481 gMC->Gspos("FNSE",0,"FSTR", 0., posfp[1],0.,0,"ONLY");
482 gMC->Gspos("FSEN",0,"FSTR", 0.,-posfp[1],0.,0,"ONLY");
484 // dividing FSEN along z in knz=2 and along x in knx=48
485 gMC->Gsdvn("FSEZ","FSEN",knz,3);
486 gMC->Gsdvn("FSEX","FSEZ",knx,1);
488 // FPAD volume definition
489 parfp[0] = klpadx*0.5;
490 parfp[1] = khsensmy*0.5;
491 parfp[2] = kwpadz*0.5;
492 gMC->Gsvolu("FPAD","BOX",idtmed[513],parfp,3);
493 // positioning the FPAD volumes on previous divisions
494 gMC->Gspos("FPAD",0,"FSEX",0.,0.,0.,0,"ONLY");
496 //// Positioning the Strips (FSTR) in the FLT volumes /////
500 Float_t t = zFLTC+zFLTB+zFLTA*0.5+ 2*db;//Half Width of Barrel
502 Float_t gap = fGapA+0.5; //cm updated distance between the strip axis
508 ycoor = -14.5 + kspace ; //2 cm over front plate
510 AliMatrix (idrotm[0], 90., 0.,90.,90.,0., 90.);
511 gMC->Gspos("FSTR",j,"FLTA",0.,ycoor, 0.,idrotm[0],"ONLY");
513 printf("%s: %f, St. %2i, Pl.3 ",ClassName(),ang*kRaddeg,i);
514 printf("y = %f, z = %f, zpos = %f \n",ycoor,zcoor,zpos);
518 Int_t upDown = -1; // upDown=-1 -> Upper strip
519 // upDown=+1 -> Lower strip
521 ang = atan(zcoor/radius);
523 AliMatrix (idrotm[nrot], 90., 0.,90.-ang,90.,-ang, 90.);
524 AliMatrix (idrotm[nrot+1],90.,180.,90.+ang,90., ang, 90.);
526 ycoor = -14.5+ kspace; //2 cm over front plate
527 ycoor += (1-(upDown+1)/2)*gap;
528 gMC->Gspos("FSTR",j ,"FLTA",0.,ycoor, zcoor,idrotm[nrot], "ONLY");
529 gMC->Gspos("FSTR",j+1,"FLTA",0.,ycoor,-zcoor,idrotm[nrot+1],"ONLY");
531 printf("%s: %f, St. %2i, Pl.3 ",ClassName(),ang*kRaddeg,i);
532 printf("y = %f, z = %f, zpos = %f \n",ycoor,zcoor,zpos);
535 upDown*= -1; // Alternate strips
536 zcoor = zcoor-(zSenStrip/2)/TMath::Cos(ang)-
537 upDown*gap*TMath::Tan(ang)-
538 (zSenStrip/2)/TMath::Cos(ang);
539 } while (zcoor-(stripWidth/2)*TMath::Cos(ang)>-t+zFLTC+zFLTB+db*2);
541 zcoor = zcoor+(zSenStrip/2)/TMath::Cos(ang)+
542 upDown*gap*TMath::Tan(ang)+
543 (zSenStrip/2)/TMath::Cos(ang);
546 zcoor = zcoor-(zSenStrip/2)/TMath::Cos(ang)-
547 upDown*gap*TMath::Tan(ang)-
548 (zSenStrip/2)/TMath::Cos(ang);
550 ang = atan(zcoor/radius);
552 AliMatrix (idrotm[nrot], 90., 0.,90.-ang,90.,-ang, 90.);
553 AliMatrix (idrotm[nrot+1],90.,180.,90.+ang,90., ang, 90.);
556 ycoor = -14.5+ kspace; //2 cm over front plate
557 ycoor += (1-(upDown+1)/2)*gap;
558 gMC->Gspos("FSTR",j ,"FLTA",0.,ycoor, zcoor,idrotm[nrot], "ONLY");
559 gMC->Gspos("FSTR",j+1,"FLTA",0.,ycoor,-zcoor,idrotm[nrot+1],"ONLY");
561 printf("%s: %f, St. %2i, Pl.3 ",ClassName(),ang*kRaddeg,i);
562 printf("y = %f, z = %f, zpos = %f \n",ycoor,zcoor,zpos);
564 ycoor = -hTof/2.+ kspace;//2 cm over front plate
571 Float_t deadRegion = 1.0;//cm
573 zpos = zcoor - (zSenStrip/2)/TMath::Cos(ang)-
574 upDown*gap*TMath::Tan(ang)-
575 (zSenStrip/2)/TMath::Cos(ang)-
576 deadRegion/TMath::Cos(ang);
578 ang = atan(zpos/radius);
580 AliMatrix (idrotm[nrot], 90., 0., 90.-ang,90.,ang, 270.);
582 ycoor = -hTof*0.5+ kspace ; //2 cm over front plate
583 ycoor += (1-(upDown+1)/2)*gap;
584 zcoor = zpos+(zFLTA*0.5+zFLTB*0.5+db); // Moves to the system of the modulus FLTB
585 gMC->Gspos("FSTR",i, "FLTB", 0., ycoor, zcoor,idrotm[nrot], "ONLY");
587 printf("%s: %f, St. %2i, Pl.4 ",ClassName(),ang*kRaddeg,i);
588 printf("y = %f, z = %f, zpos = %f \n",ycoor,zcoor,zpos);
594 zpos = zpos - (zSenStrip/2)/TMath::Cos(ang)-
595 upDown*gap*TMath::Tan(ang)-
596 (zSenStrip/2)/TMath::Cos(ang);
597 ang = atan(zpos/radius);
599 AliMatrix (idrotm[nrot], 90., 0., 90.-ang,90.,ang, 270.);
601 Float_t deltaSpaceinB=-0.5; // [cm] to avoid overlaps with the end of freon frame
602 Float_t deltaGapinB=0.5; // [cm] to avoid overlaps in between initial strips
603 ycoor = -hTof*0.5+ kspace+deltaSpaceinB ; //2 cm over front plate
604 ycoor += (1-(upDown+1)/2)*(gap+deltaGapinB);
605 zcoor = zpos+(zFLTA*0.5+zFLTB*0.5+db); // Moves to the system of the modulus FLTB
606 gMC->Gspos("FSTR",i, "FLTB", 0., ycoor, zcoor,idrotm[nrot], "ONLY");
608 printf("%s: %f, St. %2i, Pl.4 ",ClassName(),ang*kRaddeg,i);
609 printf("y = %f, z = %f, zpos = %f \n",ycoor,zcoor,zpos);
613 } while (TMath::Abs(ang*kRaddeg)<22.5);
614 //till we reach a tilting angle of 22.5 degrees
616 ycoor = -hTof*0.5+ kspace ; //2 cm over front plate
617 zpos = zpos - zSenStrip/TMath::Cos(ang);
618 // this avoid overlaps in between outer strips in plate B
619 Float_t deltaMovingUp=0.8; // [cm]
620 Float_t deltaMovingDown=-0.5; // [cm]
623 ang = atan(zpos/radius);
625 AliMatrix (idrotm[nrot], 90., 0., 90.-ang,90.,ang, 270.);
627 zcoor = zpos+(zFLTB/2+zFLTA/2+db);
628 gMC->Gspos("FSTR",i, "FLTB", 0., ycoor+deltaMovingDown+deltaMovingUp, zcoor,idrotm[nrot], "ONLY");
629 deltaMovingUp+=0.8; // update delta moving toward the end of the plate
630 zpos = zpos - zSenStrip/TMath::Cos(ang);
632 printf("%s: %f, St. %2i, Pl.4 ",ClassName(),ang*kRaddeg,i);
633 printf("y = %f, z = %f, zpos = %f \n",ycoor,zcoor,zpos);
637 } while (zpos-stripWidth*0.5/TMath::Cos(ang)>-t+zFLTC+db);
641 zpos = zpos + zSenStrip/TMath::Cos(ang);
643 zpos = zpos - (zSenStrip/2)/TMath::Cos(ang)+
645 (zSenStrip/2)/TMath::Cos(ang);
649 Float_t deltaGap=-2.5; // [cm] update distance from strip center and plate
650 ycoor= -hTof*0.5+kspace+gap+deltaGap;
654 ang = atan(zpos/radius);
656 AliMatrix (idrotm[nrot], 90., 0., 90.-ang,90.,ang, 270.);
658 zcoor = zpos+(zFLTC*0.5+zFLTB+zFLTA*0.5+db*2);
659 gMC->Gspos("FSTR",i, "FLTC", 0., ycoor, zcoor,idrotm[nrot], "ONLY");
661 printf("%s: %f, St. %2i, Pl.5 ",ClassName(),ang*kRaddeg,i);
662 printf("y = %f, z = %f, zpos = %f \n",ycoor,zcoor,zpos);
664 zpos = zpos - zSenStrip/TMath::Cos(ang);
665 } while (zpos-stripWidth*TMath::Cos(ang)*0.5>-t);
668 ////////// Layers after strips /////////////////
669 // Al Layer thickness (2.3mm) factor 0.7
671 Float_t overSpace = fOverSpc;//cm
674 par[1] = 0.115*0.7; // factor 0.7
675 par[2] = (zFLTA *0.5);
676 ycoor = -yFLT/2 + overSpace + par[1];
677 gMC->Gsvolu("FPEA", "BOX ", idtmed[508], par, 3); // Al
678 gMC->Gspos ("FPEA", 0, "FLTA", 0., ycoor, 0., 0, "ONLY");
679 par[2] = (zFLTB *0.5);
680 gMC->Gsvolu("FPEB", "BOX ", idtmed[508], par, 3); // Al
681 gMC->Gspos ("FPEB", 0, "FLTB", 0., ycoor, 0., 0, "ONLY");
682 par[2] = (zFLTC *0.5);
683 gMC->Gsvolu("FPEC", "BOX ", idtmed[508], par, 3); // Al
684 gMC->Gspos ("FPEC", 0, "FLTC", 0., ycoor, 0., 0, "ONLY");
687 // plexiglass thickness: 1.5 mm ; factor 0.3
690 par[1] = 0.075*0.3; // factor 0.3
691 par[2] = (zFLTA *0.5);
693 gMC->Gsvolu("FECA", "BOX ", idtmed[505], par, 3); // Plexigl.
694 gMC->Gspos ("FECA", 0, "FLTA", 0., ycoor, 0., 0, "ONLY");
695 par[2] = (zFLTB *0.5);
696 gMC->Gsvolu("FECB", "BOX ", idtmed[505], par, 3); // Plexigl.
697 gMC->Gspos ("FECB", 0, "FLTB", 0., ycoor, 0., 0, "ONLY");
698 par[2] = (zFLTC *0.5);
699 gMC->Gsvolu("FECC", "BOX ", idtmed[505], par, 3); // Plexigl.
700 gMC->Gspos ("FECC", 0, "FLTC", 0., ycoor, 0., 0, "ONLY");
705 par[1] = (yFLT/2-ycoor-khAlWall)*0.5; // Aluminum layer considered (0.18 cm)
706 par[2] = (zFLTA *0.5);
708 gMC->Gsvolu("FAIA", "BOX ", idtmed[500], par, 3); // Air
709 gMC->Gspos ("FAIA", 0, "FLTA", 0., ycoor, 0., 0, "ONLY");
710 par[2] = (zFLTB *0.5);
711 gMC->Gsvolu("FAIB", "BOX ", idtmed[500], par, 3); // Air
712 gMC->Gspos ("FAIB", 0, "FLTB", 0., ycoor, 0., 0, "ONLY");
713 par[2] = (zFLTC *0.5);
714 gMC->Gsvolu("FAIC", "BOX ", idtmed[500], par, 3); // Air
715 gMC->Gspos ("FAIC", 0, "FLTC", 0., ycoor, 0., 0, "ONLY");
718 // start with cards and cooling tubes
719 // finally, cards, cooling tubes and layer for thermal dispersion
721 // card volume definition
723 // see GEOM200 in GEANT manual
724 AliMatrix(idrotm[98], 90., 0., 90., 90., 0., 0.); // 0 deg
730 gMC->Gsvolu("FCAR", "BOX ", idtmed[504], cardpar, 3); // PCB Card
731 //alu plate volume definition
734 gMC->Gsvolu("FALP", "BOX ", idtmed[508], cardpar, 3); // Alu Plate
737 // central module positioning (FAIA)
738 Float_t cardpos[3], aplpos2, stepforcardA=6.625;
742 Float_t aplpos1 = -2.;
744 for (icard=0; icard<15; ++icard) {
745 cardpos[2]= cardpos[2]+stepforcardA;
746 aplpos2 = cardpos[2]+0.15;
747 gMC->Gspos("FCAR",icard,"FAIA",cardpos[0],cardpos[1],cardpos[2],idrotm[98],"ONLY");
748 gMC->Gspos("FALP",icard,"FAIA",cardpos[0],aplpos1,aplpos2,idrotm[98],"ONLY");
753 // intermediate module positioning (FAIB)
754 Float_t stepforcardB= 7.05;
756 for (icard=0; icard<19; ++icard) {
757 cardpos[2]= cardpos[2]+stepforcardB;
758 aplpos2 = cardpos[2]+0.15;
759 gMC->Gspos("FCAR",icard,"FAIB",cardpos[0],cardpos[1],cardpos[2],idrotm[98],"ONLY");
760 gMC->Gspos("FALP",icard,"FAIB",cardpos[0],aplpos1,aplpos2,idrotm[98],"ONLY");
764 // outer module positioning (FAIC)
765 Float_t stepforcardC= 8.45238;
767 for (icard=0; icard<20; ++icard) {
768 cardpos[2]= cardpos[2]+stepforcardC;
769 aplpos2 = cardpos[2]+0.15;
770 gMC->Gspos("FCAR",icard,"FAIC",cardpos[0],cardpos[1],cardpos[2],idrotm[98],"ONLY");
771 gMC->Gspos("FALP",icard,"FAIC",cardpos[0],aplpos1,aplpos2,idrotm[98],"ONLY");
774 // tube volume definition
779 gMC->Gsvolu("FTUB", "TUBE", idtmed[516], tubepar, 3); // cooling tubes (steel)
783 gMC->Gsvolu("FITU", "TUBE", idtmed[515], tubepar, 3); // cooling water
784 // positioning water tube into the steel one
785 gMC->Gspos("FITU",1,"FTUB",0.,0.,0.,0,"ONLY");
789 AliMatrix(idrotm[99], 180., 90., 90., 90., 90., 0.);
790 // central module positioning (FAIA)
791 Float_t tubepos[3], tdis=0.6;
793 tubepos[1]= cardpos[1];
794 tubepos[2]= -53.+tdis;
797 for (itub=0; itub<15; ++itub) {
798 tubepos[2]= tubepos[2]+stepforcardA;
799 gMC->Gspos("FTUB",itub,"FAIA",tubepos[0],tubepos[1],tubepos[2],idrotm[99],
804 // intermediate module positioning (FAIB)
805 tubepos[2]= -70.5+tdis;
806 for (itub=0; itub<19; ++itub) {
807 tubepos[2]= tubepos[2]+stepforcardB;
808 gMC->Gspos("FTUB",itub,"FAIB",tubepos[0],tubepos[1],tubepos[2],idrotm[99],
812 // outer module positioning (FAIC)
813 tubepos[2]= -88.75+tdis;
814 for (itub=0; itub<20; ++itub) {
815 tubepos[2]= tubepos[2]+stepforcardC;
816 gMC->Gspos("FTUB",itub,"FAIC",tubepos[0],tubepos[1],tubepos[2],idrotm[99],
822 //_____________________________________________________________________________
823 void AliTOFv4::DrawModule() const
826 // Draw a shaded view of the Time Of Flight version 4
828 // Set everything unseen
829 gMC->Gsatt("*", "seen", -1);
831 // Set ALIC mother transparent
832 gMC->Gsatt("ALIC","SEEN",0);
834 // Set the volumes visible
835 gMC->Gsatt("ALIC","SEEN",0);
837 gMC->Gsatt("FTOA","SEEN",1);
838 gMC->Gsatt("FTOB","SEEN",1);
839 gMC->Gsatt("FTOC","SEEN",1);
840 gMC->Gsatt("FLTA","SEEN",1);
841 gMC->Gsatt("FLTB","SEEN",1);
842 gMC->Gsatt("FLTC","SEEN",1);
843 gMC->Gsatt("FPLA","SEEN",1);
844 gMC->Gsatt("FPLB","SEEN",1);
845 gMC->Gsatt("FPLC","SEEN",1);
846 gMC->Gsatt("FSTR","SEEN",1);
847 gMC->Gsatt("FPEA","SEEN",1);
848 gMC->Gsatt("FPEB","SEEN",1);
849 gMC->Gsatt("FPEC","SEEN",1);
851 gMC->Gsatt("FLZ1","SEEN",0);
852 gMC->Gsatt("FLZ2","SEEN",0);
853 gMC->Gsatt("FLZ3","SEEN",0);
854 gMC->Gsatt("FLX1","SEEN",0);
855 gMC->Gsatt("FLX2","SEEN",0);
856 gMC->Gsatt("FLX3","SEEN",0);
857 gMC->Gsatt("FPAD","SEEN",0);
859 gMC->Gdopt("hide", "on");
860 gMC->Gdopt("shad", "on");
861 gMC->Gsatt("*", "fill", 7);
862 gMC->SetClipBox(".");
863 gMC->SetClipBox("*", 0, 1000, -1000, 1000, -1000, 1000);
865 gMC->Gdraw("alic", 40, 30, 0, 12, 9.5, .02, .02);
866 gMC->Gdhead(1111, "Time Of Flight");
867 gMC->Gdman(18, 4, "MAN");
868 gMC->Gdopt("hide","off");
870 //_____________________________________________________________________________
871 void AliTOFv4::DrawDetectorModules()
874 // Draw a shaded view of the TOF detector version 4
877 AliMC* pMC = AliMC::GetMC();
879 //Set ALIC mother transparent
880 pMC->Gsatt("ALIC","SEEN",0);
883 //Set volumes visible
886 // Level 1 for TOF volumes
887 gMC->Gsatt("B077","seen",0);
890 //==========> Level 2
892 gMC->Gsatt("B076","seen",-1); // all B076 sub-levels skipped -
893 gMC->Gsatt("B071","seen",0);
894 gMC->Gsatt("B074","seen",0);
895 gMC->Gsatt("B075","seen",0);
896 gMC->Gsatt("B080","seen",0); // B080 does not has sub-level
900 gMC->Gsatt("B063","seen",-1); // all B063 sub-levels skipped -
901 gMC->Gsatt("B065","seen",-1); // all B065 sub-levels skipped -
902 gMC->Gsatt("B067","seen",-1); // all B067 sub-levels skipped -
903 gMC->Gsatt("B069","seen",-1); // all B069 sub-levels skipped -
904 gMC->Gsatt("B056","seen",0); // B056 does not has sub-levels -
905 gMC->Gsatt("B059","seen",-1); // all B059 sub-levels skipped -
906 gMC->Gsatt("B072","seen",-1); // all B072 sub-levels skipped -
907 gMC->Gsatt("BTR1","seen",0); // BTR1 do not have sub-levels -
908 gMC->Gsatt("BTO1","seen",0);
912 gMC->Gsatt("BTR2","seen",0); // BTR2 does not has sub-levels -
913 gMC->Gsatt("BTO2","seen",0);
916 gMC->Gsatt("BTR3","seen",0); // BTR3 do not have sub-levels -
917 gMC->Gsatt("BTO3","seen",0);
919 // ==================> Level 3
920 // Level 3 of B071 / Level 2 of BTO1
921 gMC->Gsatt("FTOC","seen",-2);
922 gMC->Gsatt("FTOB","seen",-2);
923 gMC->Gsatt("FTOA","seen",-2);
925 // Level 3 of B074 / Level 2 of BTO2
926 // -> cfr previous settings
928 // Level 3 of B075 / Level 2 of BTO3
929 // -> cfr previous settings
931 gMC->Gdopt("hide","on");
932 gMC->Gdopt("shad","on");
933 gMC->Gsatt("*", "fill", 5);
934 gMC->SetClipBox(".");
935 gMC->SetClipBox("*", 0, 1000, 0, 1000, 0, 1000);
937 gMC->Gdraw("alic", 45, 40, 0, 10, 10, .015, .015);
938 gMC->Gdhead(1111,"TOF detector V1");
939 gMC->Gdman(18, 4, "MAN");
940 gMC->Gdopt("hide","off");
943 //_____________________________________________________________________________
944 void AliTOFv4::DrawDetectorStrips()
947 // Draw a shaded view of the TOF strips for version 4
950 AliMC* pMC = AliMC::GetMC();
952 //Set ALIC mother transparent
953 pMC->Gsatt("ALIC","SEEN",0);
956 //Set volumes visible
958 // Level 1 for TOF volumes
959 gMC->Gsatt("B077","seen",0);
961 //==========> Level 2
963 gMC->Gsatt("B076","seen",-1); // all B076 sub-levels skipped -
964 gMC->Gsatt("B071","seen",0);
965 gMC->Gsatt("B074","seen",0);
966 gMC->Gsatt("B075","seen",0);
967 gMC->Gsatt("B080","seen",0); // B080 does not has sub-level
970 gMC->Gsatt("B063","seen",-1); // all B063 sub-levels skipped -
971 gMC->Gsatt("B065","seen",-1); // all B065 sub-levels skipped -
972 gMC->Gsatt("B067","seen",-1); // all B067 sub-levels skipped -
973 gMC->Gsatt("B069","seen",-1); // all B069 sub-levels skipped -
974 gMC->Gsatt("B056","seen",0); // B056 does not has sub-levels -
975 gMC->Gsatt("B059","seen",-1); // all B059 sub-levels skipped -
976 gMC->Gsatt("B072","seen",-1); // all B072 sub-levels skipped -
977 gMC->Gsatt("BTR1","seen",0); // BTR1 do not have sub-levels -
978 gMC->Gsatt("BTO1","seen",0);
980 // ==================> Level 3
981 // Level 3 of B071 / Level 2 of BTO1
982 gMC->Gsatt("FTOC","seen",0);
983 gMC->Gsatt("FTOB","seen",0);
984 gMC->Gsatt("FTOA","seen",0);
986 // Level 3 of B074 / Level 2 of BTO2
987 // -> cfr previous settings
989 // Level 3 of B075 / Level 2 of BTO3
990 // -> cfr previous settings
993 // ==========================> Level 4
994 // Level 4 of B071 / Level 3 of BTO1 / Level 2 of FTOC
995 gMC->Gsatt("FLTC","seen",0);
996 // Level 4 of B071 / Level 3 of BTO1 / Level 2 of FTOB
997 gMC->Gsatt("FLTB","seen",0);
998 // Level 4 of B071 / Level 3 of BTO1 / Level 2 of FTOA
999 gMC->Gsatt("FLTA","seen",0);
1001 // Level 4 of B074 / Level 3 of BTO2 / Level 2 of FTOC
1002 // -> cfr previous settings
1003 // Level 4 of B074 / Level 3 of BTO2 / Level 2 of FTOB
1004 // -> cfr previous settings
1006 // Level 4 of B075 / Level 3 of BTO3 / Level 2 of FTOC
1007 // -> cfr previous settings
1009 //======================================> Level 5
1010 // Level 5 of B071 / Level 4 of BTO1 / Level 3 of FTOC / Level 2 of FLTC
1011 gMC->Gsatt("FALC","seen",0); // no children for FALC
1012 gMC->Gsatt("FSTR","seen",-2);
1013 gMC->Gsatt("FPEC","seen",0); // no children for FPEC
1014 gMC->Gsatt("FECC","seen",0); // no children for FECC
1015 gMC->Gsatt("FWAC","seen",0); // no children for FWAC
1016 gMC->Gsatt("FAIC","seen",0); // no children for FAIC
1018 // Level 5 of B071 / Level 4 of BTO1 / Level 3 of FTOB / Level 2 of FLTB
1019 gMC->Gsatt("FALB","seen",0); // no children for FALB
1020 //--> gMC->Gsatt("FSTR","seen",-2);
1023 // -> cfr previous settings
1024 gMC->Gsatt("FPEB","seen",0); // no children for FPEB
1025 gMC->Gsatt("FECB","seen",0); // no children for FECB
1026 gMC->Gsatt("FWAB","seen",0); // no children for FWAB
1027 gMC->Gsatt("FAIB","seen",0); // no children for FAIB
1029 // Level 5 of B071 / Level 4 of BTO1 / Level 3 of FTOA / Level 2 of FLTA
1030 gMC->Gsatt("FALA","seen",0); // no children for FALB
1031 //--> gMC->Gsatt("FSTR","seen",-2);
1032 // -> cfr previous settings
1033 gMC->Gsatt("FPEA","seen",0); // no children for FPEA
1034 gMC->Gsatt("FECA","seen",0); // no children for FECA
1035 gMC->Gsatt("FWAA","seen",0); // no children for FWAA
1036 gMC->Gsatt("FAIA","seen",0); // no children for FAIA
1039 gMC->Gsatt("BTR2","seen",0); // BTR2 does not has sub-levels -
1040 gMC->Gsatt("BTO2","seen",0);
1043 gMC->Gsatt("BTR3","seen",0); // BTR3 do not have sub-levels -
1044 gMC->Gsatt("BTO3","seen",0);
1046 // for others Level 5, cfr. previous settings
1048 gMC->Gdopt("hide","on");
1049 gMC->Gdopt("shad","on");
1050 gMC->Gsatt("*", "fill", 5);
1051 gMC->SetClipBox(".");
1052 gMC->SetClipBox("*", 0, 1000, 0, 1000, 0, 1000);
1053 gMC->DefaultRange();
1054 gMC->Gdraw("alic", 45, 40, 0, 10, 10, .015, .015);
1055 gMC->Gdhead(1111,"TOF Strips V1");
1056 gMC->Gdman(18, 4, "MAN");
1057 gMC->Gdopt("hide","off");
1060 //_____________________________________________________________________________
1061 void AliTOFv4::CreateMaterials()
1064 // Define materials for the Time Of Flight
1066 AliTOF::CreateMaterials();
1069 //_____________________________________________________________________________
1070 void AliTOFv4::Init()
1073 // Initialise the detector after the geometry has been defined
1076 printf("%s: **************************************"
1078 "**************************************\n",ClassName());
1079 printf("\n%s: Version 4 of TOF initialing, "
1080 "symmetric TOF - Full Coverage version\n",ClassName());
1085 fIdFTOA = gMC->VolId("FTOA");
1086 fIdFTOB = gMC->VolId("FTOB");
1087 fIdFTOC = gMC->VolId("FTOC");
1088 fIdFLTA = gMC->VolId("FLTA");
1089 fIdFLTB = gMC->VolId("FLTB");
1090 fIdFLTC = gMC->VolId("FLTC");
1093 printf("%s: **************************************"
1095 "**************************************\n",ClassName());
1099 //_____________________________________________________________________________
1100 void AliTOFv4::StepManager()
1103 // Procedure called at each step in the Time Of Flight
1105 TLorentzVector mom, pos;
1106 Float_t xm[3],pm[3],xpad[3],ppad[3];
1107 Float_t hits[13],phi,phid,z;
1109 Int_t sector, plate, padx, padz, strip;
1110 Int_t copy, padzid, padxid, stripid, i;
1111 Int_t *idtmed = fIdtmed->GetArray()-499;
1112 Float_t incidenceAngle;
1114 if(gMC->GetMedium()==idtmed[513] &&
1115 gMC->IsTrackEntering() && gMC->TrackCharge()
1116 && gMC->CurrentVolID(copy)==fIdSens)
1118 // getting information about hit volumes
1120 padzid=gMC->CurrentVolOffID(2,copy);
1123 padxid=gMC->CurrentVolOffID(1,copy);
1126 stripid=gMC->CurrentVolOffID(4,copy);
1129 gMC->TrackPosition(pos);
1130 gMC->TrackMomentum(mom);
1132 // Double_t NormPos=1./pos.Rho();
1133 Double_t normMom=1./mom.Rho();
1135 // getting the cohordinates in pad ref system
1136 xm[0] = (Float_t)pos.X();
1137 xm[1] = (Float_t)pos.Y();
1138 xm[2] = (Float_t)pos.Z();
1140 pm[0] = (Float_t)mom.X()*normMom;
1141 pm[1] = (Float_t)mom.Y()*normMom;
1142 pm[2] = (Float_t)mom.Z()*normMom;
1144 gMC->Gmtod(xm,xpad,1);
1145 gMC->Gmtod(pm,ppad,2);
1147 incidenceAngle = TMath::ACos(ppad[1])*kRaddeg;
1152 if (TMath::Abs(z) <= fZlenA*0.5) plate = 3;
1153 if (z < (fZlenA*0.5+fZlenB) &&
1154 z > fZlenA*0.5) plate = 4;
1155 if (z >-(fZlenA*0.5+fZlenB) &&
1156 z < -fZlenA*0.5) plate = 2;
1157 if (z > (fZlenA*0.5+fZlenB)) plate = 5;
1158 if (z <-(fZlenA*0.5+fZlenB)) plate = 1;
1161 phid = phi*kRaddeg+180.;
1162 sector = Int_t (phid/20.);
1170 hits[6] = mom.Rho();
1175 hits[11]= incidenceAngle;
1176 hits[12]= gMC->Edep();
1184 AddHit(gAlice->CurrentTrack(),vol, hits);