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 1.15 2001/11/22 11:22:51 hristov
19 Updated version of TOF digitization, N^2 problem solved (J.Chudoba)
21 Revision 1.13 2001/09/27 10:39:21 vicinanz
22 SDigitizer and Merger added
24 Revision 1.12 2001/09/20 15:54:22 vicinanz
25 Updated Strip Structure (Double Stack)
27 Revision 1.11 2001/08/28 08:45:59 vicinanz
28 TTask and TFolder structures implemented
30 Revision 1.10 2001/05/16 14:57:24 alibrary
31 New files for folders and Stack
33 Revision 1.9 2001/05/04 10:09:48 vicinanz
34 Major upgrades to the strip structure
36 Revision 1.8 2000/12/04 08:48:20 alibrary
37 Fixing problems in the HEAD
39 Revision 1.7 2000/10/02 21:28:17 fca
40 Removal of useless dependecies via forward declarations
42 Revision 1.6 2000/05/10 16:52:18 vicinanz
43 New TOF version with holes for PHOS/RICH
45 Revision 1.4.2.1 2000/05/10 09:37:16 vicinanz
46 New version with Holes for PHOS/RICH
48 Revision 1.14 1999/11/05 22:39:06 fca
51 Revision 1.13 1999/11/02 11:26:39 fca
52 added stdlib.h for exit
54 Revision 1.12 1999/11/01 20:41:57 fca
55 Added protections against using the wrong version of FRAME
57 Revision 1.11 1999/10/22 08:04:14 fca
58 Correct improper use of negative parameters
60 Revision 1.10 1999/10/16 19:30:06 fca
61 Corrected Rotation Matrix and CVS log
63 Revision 1.9 1999/10/15 15:35:20 fca
64 New version for frame1099 with and without holes
66 Revision 1.8 1999/09/29 09:24:33 fca
67 Introduction of the Copyright and cvs Log
71 ///////////////////////////////////////////////////////////////////////////////
73 // Time Of Flight: design of C.Williams
75 // This class contains the functions for version 4 of the Time Of Flight //
78 // VERSION WITH 5 MODULES AND TILTED STRIPS
80 // FULL COVERAGE VERSION
87 // University of Salerno - Italy
90 // University of Bologna - Italy
95 <img src="picts/AliTOFv4Class.gif">
99 ///////////////////////////////////////////////////////////////////////////////
101 #include <iostream.h>
104 #include "AliTOFv4.h"
106 #include "TGeometry.h"
108 #include <TLorentzVector.h>
112 #include "AliConst.h"
117 //_____________________________________________________________________________
121 // Default constructor
125 //_____________________________________________________________________________
126 AliTOFv4::AliTOFv4(const char *name, const char *title)
130 // Standard constructor
133 // Check that FRAME is there otherwise we have no place where to
135 AliModule* frame=gAlice->GetModule("FRAME");
137 Error("Ctor","TOF needs FRAME to be present\n");
140 if(frame->IsVersion()!=1) {
141 Error("Ctor","FRAME version 1 needed with this version of TOF\n");
147 //____________________________________________________________________________
149 void AliTOFv4::BuildGeometry()
152 // Build TOF ROOT geometry for the ALICE event display
155 const int kColorTOF = 27;
158 top = gAlice->GetGeometry()->GetNode("alice");
160 // Position the different copies
161 const Float_t krTof =(fRmax+fRmin)/2;
162 const Float_t khTof = fRmax-fRmin;
163 const Int_t kNTof = fNTof;
164 const Float_t kPi = TMath::Pi();
165 const Float_t kangle = 2*kPi/kNTof;
168 // Define TOF basic volume
170 char nodeName0[7], nodeName1[7], nodeName2[7];
171 char nodeName3[7], nodeName4[7], rotMatNum[7];
173 new TBRIK("S_TOF_C","TOF box","void",
174 120*0.5,khTof*0.5,fZlenC*0.5);
175 new TBRIK("S_TOF_B","TOF box","void",
176 120*0.5,khTof*0.5,fZlenB*0.5);
177 new TBRIK("S_TOF_A","TOF box","void",
178 120*0.5,khTof*0.5,fZlenA*0.5);
180 for (Int_t nodeNum=1;nodeNum<19;nodeNum++){
183 sprintf(rotMatNum,"rot50%i",nodeNum);
184 sprintf(nodeName0,"FTO00%i",nodeNum);
185 sprintf(nodeName1,"FTO10%i",nodeNum);
186 sprintf(nodeName2,"FTO20%i",nodeNum);
187 sprintf(nodeName3,"FTO30%i",nodeNum);
188 sprintf(nodeName4,"FTO40%i",nodeNum);
191 sprintf(rotMatNum,"rot5%i",nodeNum);
192 sprintf(nodeName0,"FTO0%i",nodeNum);
193 sprintf(nodeName1,"FTO1%i",nodeNum);
194 sprintf(nodeName2,"FTO2%i",nodeNum);
195 sprintf(nodeName3,"FTO3%i",nodeNum);
196 sprintf(nodeName4,"FTO4%i",nodeNum);
199 new TRotMatrix(rotMatNum,rotMatNum,90,-20*nodeNum,90,90-20*nodeNum,0,0);
200 ang = (4.5-nodeNum) * kangle;
203 node = new TNode(nodeName0,nodeName0,"S_TOF_C",krTof*TMath::Cos(ang),krTof*TMath::Sin(ang),299.15,rotMatNum);
204 node->SetLineColor(kColorTOF);
208 node = new TNode(nodeName1,nodeName1,"S_TOF_C",krTof*TMath::Cos(ang),krTof*TMath::Sin(ang),-299.15,rotMatNum);
209 node->SetLineColor(kColorTOF);
213 node = new TNode(nodeName2,nodeName2,"S_TOF_B",krTof*TMath::Cos(ang),krTof*TMath::Sin(ang),146.45,rotMatNum);
214 node->SetLineColor(kColorTOF);
218 node = new TNode(nodeName3,nodeName3,"S_TOF_B",krTof*TMath::Cos(ang),krTof*TMath::Sin(ang),-146.45,rotMatNum);
219 node->SetLineColor(kColorTOF);
223 node = new TNode(nodeName4,nodeName4,"S_TOF_A",krTof*TMath::Cos(ang),krTof*TMath::Sin(ang),0.,rotMatNum);
224 node->SetLineColor(kColorTOF);
226 } // end loop on nodeNum
231 //_____________________________________________________________________________
232 void AliTOFv4::CreateGeometry()
235 // Create geometry for Time Of Flight version 0
239 <img src="picts/AliTOFv4.gif">
243 // Creates common geometry
245 AliTOF::CreateGeometry();
248 //_____________________________________________________________________________
249 void AliTOFv4::TOFpc(Float_t xtof, Float_t ytof, Float_t zlenC,
250 Float_t zlenB, Float_t zlenA, Float_t ztof0)
253 // Definition of the Time Of Fligh Resistive Plate Chambers
254 // xFLT, yFLT, zFLT - sizes of TOF modules (large)
256 Float_t ycoor, zcoor;
258 Int_t *idtmed = fIdtmed->GetArray()-499;
261 Float_t hTof = fRmax-fRmin;
263 Float_t radius = fRmin+2.;//cm
267 par[2] = zlenC * 0.5;
268 gMC->Gsvolu("FTOC", "BOX ", idtmed[506], par, 3);
269 par[2] = zlenB * 0.5;
270 gMC->Gsvolu("FTOB", "BOX ", idtmed[506], par, 3);
271 par[2] = zlenA * 0.5;
272 gMC->Gsvolu("FTOA", "BOX ", idtmed[506], par, 3);
275 // Positioning of modules
277 Float_t zcor1 = ztof0 - zlenC*0.5;
278 Float_t zcor2 = ztof0 - zlenC - zlenB*0.5;
281 AliMatrix(idrotm[0], 90., 0., 0., 0., 90,-90.);
282 AliMatrix(idrotm[1], 90.,180., 0., 0., 90, 90.);
283 gMC->Gspos("FTOC", 1, "BTO1", 0, zcor1, 0, idrotm[0], "ONLY");
284 gMC->Gspos("FTOC", 2, "BTO1", 0, -zcor1, 0, idrotm[1], "ONLY");
285 gMC->Gspos("FTOC", 1, "BTO2", 0, zcor1, 0, idrotm[0], "ONLY");
286 gMC->Gspos("FTOC", 2, "BTO2", 0, -zcor1, 0, idrotm[1], "ONLY");
287 gMC->Gspos("FTOC", 1, "BTO3", 0, zcor1, 0, idrotm[0], "ONLY");
288 gMC->Gspos("FTOC", 2, "BTO3", 0, -zcor1, 0, idrotm[1], "ONLY");
290 gMC->Gspos("FTOB", 1, "BTO1", 0, zcor2, 0, idrotm[0], "ONLY");
291 gMC->Gspos("FTOB", 2, "BTO1", 0, -zcor2, 0, idrotm[1], "ONLY");
292 gMC->Gspos("FTOB", 1, "BTO2", 0, zcor2, 0, idrotm[0], "ONLY");
293 gMC->Gspos("FTOB", 2, "BTO2", 0, -zcor2, 0, idrotm[1], "ONLY");
294 gMC->Gspos("FTOB", 1, "BTO3", 0, zcor2, 0, idrotm[0], "ONLY");
295 gMC->Gspos("FTOB", 2, "BTO3", 0, -zcor2, 0, idrotm[1], "ONLY");
297 gMC->Gspos("FTOA", 0, "BTO1", 0, zcor3, 0, idrotm[0], "ONLY");
298 gMC->Gspos("FTOA", 0, "BTO2", 0, zcor3, 0, idrotm[0], "ONLY");
299 gMC->Gspos("FTOA", 0, "BTO3", 0, zcor3, 0, idrotm[0], "ONLY");
301 Float_t db = 0.5;//cm
302 Float_t xFLT, xFST, yFLT, zFLTA, zFLTB, zFLTC;
310 xFST = xFLT-fDeadBndX*2;//cm
312 // Sizes of MRPC pads
314 Float_t yPad = 0.505;//cm
316 // Large not sensitive volumes with Insensitive Freon
320 if (fDebug) cout << ClassName() <<
321 ": ************************* TOF geometry **************************"<<endl;
323 par[2] = (zFLTA *0.5);
324 gMC->Gsvolu("FLTA", "BOX ", idtmed[512], par, 3); // Insensitive Freon
325 gMC->Gspos ("FLTA", 0, "FTOA", 0., 0., 0., 0, "ONLY");
327 par[2] = (zFLTB * 0.5);
328 gMC->Gsvolu("FLTB", "BOX ", idtmed[512], par, 3); // Insensitive Freon
329 gMC->Gspos ("FLTB", 0, "FTOB", 0., 0., 0., 0, "ONLY");
331 par[2] = (zFLTC * 0.5);
332 gMC->Gsvolu("FLTC", "BOX ", idtmed[512], par, 3); // Insensitive Freon
333 gMC->Gspos ("FLTC", 0, "FTOC", 0., 0., 0., 0, "ONLY");
335 ////////// Layers of Aluminum before and after detector //////////
336 ////////// Aluminum Box for Modules (2.0 mm thickness) /////////
337 ////////// lateral walls not simulated
340 ycoor = -yFLT/2 + par[1];
341 par[2] = (zFLTA *0.5);
342 gMC->Gsvolu("FALA", "BOX ", idtmed[508], par, 3); // Alluminium
343 gMC->Gspos ("FALA", 1, "FLTA", 0., ycoor, 0., 0, "ONLY");
344 gMC->Gspos ("FALA", 2, "FLTA", 0.,-ycoor, 0., 0, "ONLY");
345 par[2] = (zFLTB *0.5);
346 gMC->Gsvolu("FALB", "BOX ", idtmed[508], par, 3); // Alluminium
347 gMC->Gspos ("FALB", 1, "FLTB", 0., ycoor, 0., 0, "ONLY");
348 gMC->Gspos ("FALB", 2, "FLTB", 0.,-ycoor, 0., 0, "ONLY");
349 par[2] = (zFLTC *0.5);
350 gMC->Gsvolu("FALC", "BOX ", idtmed[508], par, 3); // Alluminium
351 gMC->Gspos ("FALC", 1, "FLTC", 0., ycoor, 0., 0, "ONLY");
352 gMC->Gspos ("FALC", 2, "FLTC", 0.,-ycoor, 0., 0, "ONLY");
354 ///////////////// Detector itself //////////////////////
356 const Float_t kdeadBound = fDeadBndZ; //cm non-sensitive between the pad edge
357 //and the boundary of the strip
358 const Int_t knx = fNpadX; // number of pads along x
359 const Int_t knz = fNpadZ; // number of pads along z
360 const Float_t kspace = fSpace; //cm distance from the front plate of the box
362 Float_t zSenStrip = fZpad*fNpadZ;//cm
363 Float_t stripWidth = zSenStrip + 2*kdeadBound;
367 par[2] = stripWidth*0.5;
369 // new description for strip volume -double stack strip-
370 // -- all constants are expressed in cm
371 // heigth of different layers
372 const Float_t khhony = 1. ; // heigth of HONY Layer
373 const Float_t khpcby = 0.15 ; // heigth of PCB Layer
374 const Float_t khmyly = 0.035 ; // heigth of MYLAR Layer
375 const Float_t khgraphy = 0.02 ; // heigth of GRAPHITE Layer
376 const Float_t khglasseiy = 0.17; // 0.6 Ext. Glass + 1.1 i.e. (Int. Glass/2) (mm)
377 const Float_t khsensmy = 0.11 ; // heigth of Sensitive Freon Mixture
378 const Float_t kwsensmz = 2*3.5 ; // cm
379 const Float_t klsensmx = 48*2.5; // cm
380 const Float_t kwpadz = 3.5; // cm z dimension of the FPAD volume
381 const Float_t klpadx = 2.5; // cm x dimension of the FPAD volume
383 // heigth of the FSTR Volume (the strip volume)
384 const Float_t khstripy = 2*khhony+3*khpcby+4*(khmyly+khgraphy+khglasseiy)+2*khsensmy;
385 // width of the FSTR Volume (the strip volume)
386 const Float_t kwstripz = 10.;
387 // length of the FSTR Volume (the strip volume)
388 const Float_t klstripx = 122.;
390 Float_t parfp[3]={klstripx*0.5,khstripy*0.5,kwstripz*0.5};
391 // coordinates of the strip center in the strip reference frame; used for positioning
392 // internal strip volumes
393 Float_t posfp[3]={0.,0.,0.};
396 // FSTR volume definition and filling this volume with non sensitive Gas Mixture
397 gMC->Gsvolu("FSTR","BOX",idtmed[512],parfp,3);
398 //-- HONY Layer definition
400 parfp[1] = khhony*0.5;
402 gMC->Gsvolu("FHON","BOX",idtmed[503],parfp,3);
403 // positioning 2 HONY Layers on FSTR volume
405 posfp[1]=-khstripy*0.5+parfp[1];
406 gMC->Gspos("FHON",1,"FSTR",0., posfp[1],0.,0,"ONLY");
407 gMC->Gspos("FHON",2,"FSTR",0.,-posfp[1],0.,0,"ONLY");
409 //-- PCB Layer definition
410 parfp[1] = khpcby*0.5;
411 gMC->Gsvolu("FPCB","BOX",idtmed[504],parfp,3);
412 // positioning 2 PCB Layers on FSTR volume
413 posfp[1]=-khstripy*0.5+khhony+parfp[1];
414 gMC->Gspos("FPCB",1,"FSTR",0., posfp[1],0.,0,"ONLY");
415 gMC->Gspos("FPCB",2,"FSTR",0.,-posfp[1],0.,0,"ONLY");
416 // positioning the central PCB layer
417 gMC->Gspos("FPCB",3,"FSTR",0.,0.,0.,0,"ONLY");
421 //-- MYLAR Layer definition
422 parfp[1] = khmyly*0.5;
423 gMC->Gsvolu("FMYL","BOX",idtmed[511],parfp,3);
424 // positioning 2 MYLAR Layers on FSTR volume
425 posfp[1] = -khstripy*0.5+khhony+khpcby+parfp[1];
426 gMC->Gspos("FMYL",1,"FSTR",0., posfp[1],0.,0,"ONLY");
427 gMC->Gspos("FMYL",2,"FSTR",0.,-posfp[1],0.,0,"ONLY");
428 // adding further 2 MYLAR Layers on FSTR volume
429 posfp[1] = khpcby*0.5+parfp[1];
430 gMC->Gspos("FMYL",3,"FSTR",0., posfp[1],0.,0,"ONLY");
431 gMC->Gspos("FMYL",4,"FSTR",0.,-posfp[1],0.,0,"ONLY");
434 //-- Graphite Layer definition
435 parfp[1] = khgraphy*0.5;
436 gMC->Gsvolu("FGRP","BOX",idtmed[502],parfp,3);
437 // positioning 2 Graphite Layers on FSTR volume
438 posfp[1] = -khstripy*0.5+khhony+khpcby+khmyly+parfp[1];
439 gMC->Gspos("FGRP",1,"FSTR",0., posfp[1],0.,0,"ONLY");
440 gMC->Gspos("FGRP",2,"FSTR",0.,-posfp[1],0.,0,"ONLY");
441 // adding further 2 Graphite Layers on FSTR volume
442 posfp[1] = khpcby*0.5+khmyly+parfp[1];
443 gMC->Gspos("FGRP",3,"FSTR",0., posfp[1],0.,0,"ONLY");
444 gMC->Gspos("FGRP",4,"FSTR",0.,-posfp[1],0.,0,"ONLY");
447 //-- Glass (EXT. +Semi INT.) Layer definition
448 parfp[1] = khglasseiy*0.5;
449 gMC->Gsvolu("FGLA","BOX",idtmed[514],parfp,3);
450 // positioning 2 Glass Layers on FSTR volume
451 posfp[1] = -khstripy*0.5+khhony+khpcby+khmyly+khgraphy+parfp[1];
452 gMC->Gspos("FGLA",1,"FSTR",0., posfp[1],0.,0,"ONLY");
453 gMC->Gspos("FGLA",2,"FSTR",0.,-posfp[1],0.,0,"ONLY");
454 // adding further 2 Glass Layers on FSTR volume
455 posfp[1] = khpcby*0.5+khmyly+khgraphy+parfp[1];
456 gMC->Gspos("FGLA",3,"FSTR",0., posfp[1],0.,0,"ONLY");
457 gMC->Gspos("FGLA",4,"FSTR",0.,-posfp[1],0.,0,"ONLY");
460 //-- Sensitive Mixture Layer definition
461 parfp[0] = klsensmx*0.5;
462 parfp[1] = khsensmy*0.5;
463 parfp[2] = kwsensmz*0.5;
464 gMC->Gsvolu("FSEN","BOX",idtmed[513],parfp,3);
465 gMC->Gsvolu("FNSE","BOX",idtmed[512],parfp,3);
466 // positioning 2 gas Layers on FSTR volume
467 // the upper is insensitive freon
468 // while the remaining is sensitive
469 posfp[1] = khpcby*0.5+khmyly+khgraphy+khglasseiy+parfp[1];
470 gMC->Gspos("FNSE",0,"FSTR", 0., posfp[1],0.,0,"ONLY");
471 gMC->Gspos("FSEN",0,"FSTR", 0.,-posfp[1],0.,0,"ONLY");
473 // dividing FSEN along z in knz=2 and along x in knx=48
474 gMC->Gsdvn("FSEZ","FSEN",knz,3);
475 gMC->Gsdvn("FSEX","FSEZ",knx,1);
477 // FPAD volume definition
478 parfp[0] = klpadx*0.5;
479 parfp[1] = khsensmy*0.5;
480 parfp[2] = kwpadz*0.5;
481 gMC->Gsvolu("FPAD","BOX",idtmed[513],parfp,3);
482 // positioning the FPAD volumes on previous divisions
483 gMC->Gspos("FPAD",0,"FSEX",0.,0.,0.,0,"ONLY");
485 //// Positioning the Strips (FSTR) in the FLT volumes /////
489 Float_t t = zFLTC+zFLTB+zFLTA*0.5+ 2*db;//Half Width of Barrel
491 Float_t gap = fGapA+0.5; //cm updated distance between the strip axis
497 ycoor = -14.5 + kspace ; //2 cm over front plate
499 AliMatrix (idrotm[0], 90., 0.,90.,90.,0., 90.);
500 gMC->Gspos("FSTR",j,"FLTA",0.,ycoor, 0.,idrotm[0],"ONLY");
502 printf("%s: %f, St. %2i, Pl.3 ",ClassName(),ang*kRaddeg,i);
503 printf("y = %f, z = %f, zpos = %f \n",ycoor,zcoor,zpos);
507 Int_t upDown = -1; // upDown=-1 -> Upper strip
508 // upDown=+1 -> Lower strip
510 ang = atan(zcoor/radius);
512 AliMatrix (idrotm[nrot], 90., 0.,90.-ang,90.,-ang, 90.);
513 AliMatrix (idrotm[nrot+1],90.,180.,90.+ang,90., ang, 90.);
515 ycoor = -14.5+ kspace; //2 cm over front plate
516 ycoor += (1-(upDown+1)/2)*gap;
517 gMC->Gspos("FSTR",j ,"FLTA",0.,ycoor, zcoor,idrotm[nrot], "ONLY");
518 gMC->Gspos("FSTR",j+1,"FLTA",0.,ycoor,-zcoor,idrotm[nrot+1],"ONLY");
520 printf("%s: %f, St. %2i, Pl.3 ",ClassName(),ang*kRaddeg,i);
521 printf("y = %f, z = %f, zpos = %f \n",ycoor,zcoor,zpos);
524 upDown*= -1; // Alternate strips
525 zcoor = zcoor-(zSenStrip/2)/TMath::Cos(ang)-
526 upDown*gap*TMath::Tan(ang)-
527 (zSenStrip/2)/TMath::Cos(ang);
528 } while (zcoor-(stripWidth/2)*TMath::Cos(ang)>-t+zFLTC+zFLTB+db*2);
530 zcoor = zcoor+(zSenStrip/2)/TMath::Cos(ang)+
531 upDown*gap*TMath::Tan(ang)+
532 (zSenStrip/2)/TMath::Cos(ang);
535 zcoor = zcoor-(zSenStrip/2)/TMath::Cos(ang)-
536 upDown*gap*TMath::Tan(ang)-
537 (zSenStrip/2)/TMath::Cos(ang);
539 ang = atan(zcoor/radius);
541 AliMatrix (idrotm[nrot], 90., 0.,90.-ang,90.,-ang, 90.);
542 AliMatrix (idrotm[nrot+1],90.,180.,90.+ang,90., ang, 90.);
545 ycoor = -14.5+ kspace; //2 cm over front plate
546 ycoor += (1-(upDown+1)/2)*gap;
547 gMC->Gspos("FSTR",j ,"FLTA",0.,ycoor, zcoor,idrotm[nrot], "ONLY");
548 gMC->Gspos("FSTR",j+1,"FLTA",0.,ycoor,-zcoor,idrotm[nrot+1],"ONLY");
550 printf("%s: %f, St. %2i, Pl.3 ",ClassName(),ang*kRaddeg,i);
551 printf("y = %f, z = %f, zpos = %f \n",ycoor,zcoor,zpos);
553 ycoor = -hTof/2.+ kspace;//2 cm over front plate
560 Float_t deadRegion = 1.0;//cm
562 zpos = zcoor - (zSenStrip/2)/TMath::Cos(ang)-
563 upDown*gap*TMath::Tan(ang)-
564 (zSenStrip/2)/TMath::Cos(ang)-
565 deadRegion/TMath::Cos(ang);
567 ang = atan(zpos/radius);
569 AliMatrix (idrotm[nrot], 90., 0., 90.-ang,90.,ang, 270.);
571 ycoor = -hTof*0.5+ kspace ; //2 cm over front plate
572 ycoor += (1-(upDown+1)/2)*gap;
573 zcoor = zpos+(zFLTA*0.5+zFLTB*0.5+db); // Moves to the system of the modulus FLTB
574 gMC->Gspos("FSTR",i, "FLTB", 0., ycoor, zcoor,idrotm[nrot], "ONLY");
576 printf("%s: %f, St. %2i, Pl.4 ",ClassName(),ang*kRaddeg,i);
577 printf("y = %f, z = %f, zpos = %f \n",ycoor,zcoor,zpos);
583 zpos = zpos - (zSenStrip/2)/TMath::Cos(ang)-
584 upDown*gap*TMath::Tan(ang)-
585 (zSenStrip/2)/TMath::Cos(ang);
586 ang = atan(zpos/radius);
588 AliMatrix (idrotm[nrot], 90., 0., 90.-ang,90.,ang, 270.);
590 Float_t deltaSpaceinB=-0.5; // [cm] to avoid overlaps with the end of freon frame
591 Float_t deltaGapinB=0.5; // [cm] to avoid overlaps in between initial strips
592 ycoor = -hTof*0.5+ kspace+deltaSpaceinB ; //2 cm over front plate
593 ycoor += (1-(upDown+1)/2)*(gap+deltaGapinB);
594 zcoor = zpos+(zFLTA*0.5+zFLTB*0.5+db); // Moves to the system of the modulus FLTB
595 gMC->Gspos("FSTR",i, "FLTB", 0., ycoor, zcoor,idrotm[nrot], "ONLY");
597 printf("%s: %f, St. %2i, Pl.4 ",ClassName(),ang*kRaddeg,i);
598 printf("y = %f, z = %f, zpos = %f \n",ycoor,zcoor,zpos);
602 } while (TMath::Abs(ang*kRaddeg)<22.5);
603 //till we reach a tilting angle of 22.5 degrees
605 ycoor = -hTof*0.5+ kspace ; //2 cm over front plate
606 zpos = zpos - zSenStrip/TMath::Cos(ang);
607 // this avoid overlaps in between outer strips in plate B
608 Float_t deltaMovingUp=0.8; // [cm]
609 Float_t deltaMovingDown=-0.5; // [cm]
612 ang = atan(zpos/radius);
614 AliMatrix (idrotm[nrot], 90., 0., 90.-ang,90.,ang, 270.);
616 zcoor = zpos+(zFLTB/2+zFLTA/2+db);
617 gMC->Gspos("FSTR",i, "FLTB", 0., ycoor+deltaMovingDown+deltaMovingUp, zcoor,idrotm[nrot], "ONLY");
618 deltaMovingUp+=0.8; // update delta moving toward the end of the plate
619 zpos = zpos - zSenStrip/TMath::Cos(ang);
621 printf("%s: %f, St. %2i, Pl.4 ",ClassName(),ang*kRaddeg,i);
622 printf("y = %f, z = %f, zpos = %f \n",ycoor,zcoor,zpos);
626 } while (zpos-stripWidth*0.5/TMath::Cos(ang)>-t+zFLTC+db);
630 zpos = zpos + zSenStrip/TMath::Cos(ang);
632 zpos = zpos - (zSenStrip/2)/TMath::Cos(ang)+
634 (zSenStrip/2)/TMath::Cos(ang);
638 Float_t deltaGap=-2.5; // [cm] update distance from strip center and plate
639 ycoor= -hTof*0.5+kspace+gap+deltaGap;
643 ang = atan(zpos/radius);
645 AliMatrix (idrotm[nrot], 90., 0., 90.-ang,90.,ang, 270.);
647 zcoor = zpos+(zFLTC*0.5+zFLTB+zFLTA*0.5+db*2);
648 gMC->Gspos("FSTR",i, "FLTC", 0., ycoor, zcoor,idrotm[nrot], "ONLY");
650 printf("%s: %f, St. %2i, Pl.5 ",ClassName(),ang*kRaddeg,i);
651 printf("y = %f, z = %f, zpos = %f \n",ycoor,zcoor,zpos);
653 zpos = zpos - zSenStrip/TMath::Cos(ang);
654 } while (zpos-stripWidth*TMath::Cos(ang)*0.5>-t);
657 ////////// Layers after strips /////////////////
658 // honeycomb (Polyethilene) Layer after (1.2cm)
660 Float_t overSpace = fOverSpc;//cm
664 par[2] = (zFLTA *0.5);
665 ycoor = -yFLT/2 + overSpace + par[1];
666 gMC->Gsvolu("FPEA", "BOX ", idtmed[503], par, 3); // Hony
667 gMC->Gspos ("FPEA", 0, "FLTA", 0., ycoor, 0., 0, "ONLY");
668 par[2] = (zFLTB *0.5);
669 gMC->Gsvolu("FPEB", "BOX ", idtmed[503], par, 3); // Hony
670 gMC->Gspos ("FPEB", 0, "FLTB", 0., ycoor, 0., 0, "ONLY");
671 par[2] = (zFLTC *0.5);
672 gMC->Gsvolu("FPEC", "BOX ", idtmed[503], par, 3); // Hony
673 gMC->Gspos ("FPEC", 0, "FLTC", 0., ycoor, 0., 0, "ONLY");
675 // Electronics (Cu) after
678 par[1] = 1.43*0.05*0.5; // 5% of X0
679 par[2] = (zFLTA *0.5);
681 gMC->Gsvolu("FECA", "BOX ", idtmed[501], par, 3); // Cu
682 gMC->Gspos ("FECA", 0, "FLTA", 0., ycoor, 0., 0, "ONLY");
683 par[2] = (zFLTB *0.5);
684 gMC->Gsvolu("FECB", "BOX ", idtmed[501], par, 3); // Cu
685 gMC->Gspos ("FECB", 0, "FLTB", 0., ycoor, 0., 0, "ONLY");
686 par[2] = (zFLTC *0.5);
687 gMC->Gsvolu("FECC", "BOX ", idtmed[501], par, 3); // Cu
688 gMC->Gspos ("FECC", 0, "FLTC", 0., ycoor, 0., 0, "ONLY");
690 // cooling WAter after
693 par[1] = 36.1*0.02*0.5; // 2% of X0
694 par[2] = (zFLTA *0.5);
696 gMC->Gsvolu("FWAA", "BOX ", idtmed[515], par, 3); // Water
697 gMC->Gspos ("FWAA", 0, "FLTA", 0., ycoor, 0., 0, "ONLY");
698 par[2] = (zFLTB *0.5);
699 gMC->Gsvolu("FWAB", "BOX ", idtmed[515], par, 3); // Water
700 gMC->Gspos ("FWAB", 0, "FLTB", 0., ycoor, 0., 0, "ONLY");
701 par[2] = (zFLTC *0.5);
702 gMC->Gsvolu("FWAC", "BOX ", idtmed[515], par, 3); // Water
703 gMC->Gspos ("FWAC", 0, "FLTC", 0., ycoor, 0., 0, "ONLY");
708 par[1] = (yFLT/2-ycoor-0.2)*0.5; // Aluminum layer considered (0.2 cm)
709 par[2] = (zFLTA *0.5);
711 gMC->Gsvolu("FAIA", "BOX ", idtmed[500], par, 3); // Air
712 gMC->Gspos ("FAIA", 0, "FLTA", 0., ycoor, 0., 0, "ONLY");
713 par[2] = (zFLTB *0.5);
714 gMC->Gsvolu("FAIB", "BOX ", idtmed[500], par, 3); // Air
715 gMC->Gspos ("FAIB", 0, "FLTB", 0., ycoor, 0., 0, "ONLY");
716 par[2] = (zFLTC *0.5);
717 gMC->Gsvolu("FAIC", "BOX ", idtmed[500], par, 3); // Air
718 gMC->Gspos ("FAIC", 0, "FLTC", 0., ycoor, 0., 0, "ONLY");
720 //Back Plate honycomb (2cm)
724 ycoor = yFLT/2 - par[1];
725 gMC->Gsvolu("FBPA", "BOX ", idtmed[503], par, 3); // Hony
726 gMC->Gspos ("FBPA", 0, "FLTA", 0., ycoor, 0., 0, "ONLY");
727 gMC->Gsvolu("FBPB", "BOX ", idtmed[503], par, 3); // Hony
728 gMC->Gspos ("FBPB", 0, "FLTB", 0., ycoor, 0., 0, "ONLY");
729 gMC->Gsvolu("FBPC", "BOX ", idtmed[503], par, 3); // Hony
730 gMC->Gspos ("FBPC", 0, "FLTC", 0., ycoor, 0., 0, "ONLY");
734 //_____________________________________________________________________________
735 void AliTOFv4::DrawModule() const
738 // Draw a shaded view of the Time Of Flight version 4
740 // Set everything unseen
741 gMC->Gsatt("*", "seen", -1);
743 // Set ALIC mother transparent
744 gMC->Gsatt("ALIC","SEEN",0);
746 // Set the volumes visible
747 gMC->Gsatt("ALIC","SEEN",0);
749 gMC->Gsatt("FTOA","SEEN",1);
750 gMC->Gsatt("FTOB","SEEN",1);
751 gMC->Gsatt("FTOC","SEEN",1);
752 gMC->Gsatt("FLTA","SEEN",1);
753 gMC->Gsatt("FLTB","SEEN",1);
754 gMC->Gsatt("FLTC","SEEN",1);
755 gMC->Gsatt("FPLA","SEEN",1);
756 gMC->Gsatt("FPLB","SEEN",1);
757 gMC->Gsatt("FPLC","SEEN",1);
758 gMC->Gsatt("FSTR","SEEN",1);
759 gMC->Gsatt("FPEA","SEEN",1);
760 gMC->Gsatt("FPEB","SEEN",1);
761 gMC->Gsatt("FPEC","SEEN",1);
763 gMC->Gsatt("FLZ1","SEEN",0);
764 gMC->Gsatt("FLZ2","SEEN",0);
765 gMC->Gsatt("FLZ3","SEEN",0);
766 gMC->Gsatt("FLX1","SEEN",0);
767 gMC->Gsatt("FLX2","SEEN",0);
768 gMC->Gsatt("FLX3","SEEN",0);
769 gMC->Gsatt("FPAD","SEEN",0);
771 gMC->Gdopt("hide", "on");
772 gMC->Gdopt("shad", "on");
773 gMC->Gsatt("*", "fill", 7);
774 gMC->SetClipBox(".");
775 gMC->SetClipBox("*", 0, 1000, -1000, 1000, -1000, 1000);
777 gMC->Gdraw("alic", 40, 30, 0, 12, 9.5, .02, .02);
778 gMC->Gdhead(1111, "Time Of Flight");
779 gMC->Gdman(18, 4, "MAN");
780 gMC->Gdopt("hide","off");
782 //_____________________________________________________________________________
783 void AliTOFv4::DrawDetectorModules()
786 // Draw a shaded view of the TOF detector version 4
789 AliMC* pMC = AliMC::GetMC();
791 //Set ALIC mother transparent
792 pMC->Gsatt("ALIC","SEEN",0);
795 //Set volumes visible
798 // Level 1 for TOF volumes
799 gMC->Gsatt("B077","seen",0);
802 //==========> Level 2
804 gMC->Gsatt("B076","seen",-1); // all B076 sub-levels skipped -
805 gMC->Gsatt("B071","seen",0);
806 gMC->Gsatt("B074","seen",0);
807 gMC->Gsatt("B075","seen",0);
808 gMC->Gsatt("B080","seen",0); // B080 does not has sub-level
812 gMC->Gsatt("B063","seen",-1); // all B063 sub-levels skipped -
813 gMC->Gsatt("B065","seen",-1); // all B065 sub-levels skipped -
814 gMC->Gsatt("B067","seen",-1); // all B067 sub-levels skipped -
815 gMC->Gsatt("B069","seen",-1); // all B069 sub-levels skipped -
816 gMC->Gsatt("B056","seen",0); // B056 does not has sub-levels -
817 gMC->Gsatt("B059","seen",-1); // all B059 sub-levels skipped -
818 gMC->Gsatt("B072","seen",-1); // all B072 sub-levels skipped -
819 gMC->Gsatt("BTR1","seen",0); // BTR1 do not have sub-levels -
820 gMC->Gsatt("BTO1","seen",0);
824 gMC->Gsatt("BTR2","seen",0); // BTR2 does not has sub-levels -
825 gMC->Gsatt("BTO2","seen",0);
828 gMC->Gsatt("BTR3","seen",0); // BTR3 do not have sub-levels -
829 gMC->Gsatt("BTO3","seen",0);
831 // ==================> Level 3
832 // Level 3 of B071 / Level 2 of BTO1
833 gMC->Gsatt("FTOC","seen",-2);
834 gMC->Gsatt("FTOB","seen",-2);
835 gMC->Gsatt("FTOA","seen",-2);
837 // Level 3 of B074 / Level 2 of BTO2
838 // -> cfr previous settings
840 // Level 3 of B075 / Level 2 of BTO3
841 // -> cfr previous settings
843 gMC->Gdopt("hide","on");
844 gMC->Gdopt("shad","on");
845 gMC->Gsatt("*", "fill", 5);
846 gMC->SetClipBox(".");
847 gMC->SetClipBox("*", 0, 1000, 0, 1000, 0, 1000);
849 gMC->Gdraw("alic", 45, 40, 0, 10, 10, .015, .015);
850 gMC->Gdhead(1111,"TOF detector V1");
851 gMC->Gdman(18, 4, "MAN");
852 gMC->Gdopt("hide","off");
855 //_____________________________________________________________________________
856 void AliTOFv4::DrawDetectorStrips()
859 // Draw a shaded view of the TOF strips for version 4
862 AliMC* pMC = AliMC::GetMC();
864 //Set ALIC mother transparent
865 pMC->Gsatt("ALIC","SEEN",0);
868 //Set volumes visible
870 // Level 1 for TOF volumes
871 gMC->Gsatt("B077","seen",0);
873 //==========> Level 2
875 gMC->Gsatt("B076","seen",-1); // all B076 sub-levels skipped -
876 gMC->Gsatt("B071","seen",0);
877 gMC->Gsatt("B074","seen",0);
878 gMC->Gsatt("B075","seen",0);
879 gMC->Gsatt("B080","seen",0); // B080 does not has sub-level
882 gMC->Gsatt("B063","seen",-1); // all B063 sub-levels skipped -
883 gMC->Gsatt("B065","seen",-1); // all B065 sub-levels skipped -
884 gMC->Gsatt("B067","seen",-1); // all B067 sub-levels skipped -
885 gMC->Gsatt("B069","seen",-1); // all B069 sub-levels skipped -
886 gMC->Gsatt("B056","seen",0); // B056 does not has sub-levels -
887 gMC->Gsatt("B059","seen",-1); // all B059 sub-levels skipped -
888 gMC->Gsatt("B072","seen",-1); // all B072 sub-levels skipped -
889 gMC->Gsatt("BTR1","seen",0); // BTR1 do not have sub-levels -
890 gMC->Gsatt("BTO1","seen",0);
892 // ==================> Level 3
893 // Level 3 of B071 / Level 2 of BTO1
894 gMC->Gsatt("FTOC","seen",0);
895 gMC->Gsatt("FTOB","seen",0);
896 gMC->Gsatt("FTOA","seen",0);
898 // Level 3 of B074 / Level 2 of BTO2
899 // -> cfr previous settings
901 // Level 3 of B075 / Level 2 of BTO3
902 // -> cfr previous settings
905 // ==========================> Level 4
906 // Level 4 of B071 / Level 3 of BTO1 / Level 2 of FTOC
907 gMC->Gsatt("FLTC","seen",0);
908 // Level 4 of B071 / Level 3 of BTO1 / Level 2 of FTOB
909 gMC->Gsatt("FLTB","seen",0);
910 // Level 4 of B071 / Level 3 of BTO1 / Level 2 of FTOA
911 gMC->Gsatt("FLTA","seen",0);
913 // Level 4 of B074 / Level 3 of BTO2 / Level 2 of FTOC
914 // -> cfr previous settings
915 // Level 4 of B074 / Level 3 of BTO2 / Level 2 of FTOB
916 // -> cfr previous settings
918 // Level 4 of B075 / Level 3 of BTO3 / Level 2 of FTOC
919 // -> cfr previous settings
921 //======================================> Level 5
922 // Level 5 of B071 / Level 4 of BTO1 / Level 3 of FTOC / Level 2 of FLTC
923 gMC->Gsatt("FALC","seen",0); // no children for FALC
924 gMC->Gsatt("FSTR","seen",-2);
925 gMC->Gsatt("FPEC","seen",0); // no children for FPEC
926 gMC->Gsatt("FECC","seen",0); // no children for FECC
927 gMC->Gsatt("FWAC","seen",0); // no children for FWAC
928 gMC->Gsatt("FAIC","seen",0); // no children for FAIC
930 // Level 5 of B071 / Level 4 of BTO1 / Level 3 of FTOB / Level 2 of FLTB
931 gMC->Gsatt("FALB","seen",0); // no children for FALB
932 //--> gMC->Gsatt("FSTR","seen",-2);
935 // -> cfr previous settings
936 gMC->Gsatt("FPEB","seen",0); // no children for FPEB
937 gMC->Gsatt("FECB","seen",0); // no children for FECB
938 gMC->Gsatt("FWAB","seen",0); // no children for FWAB
939 gMC->Gsatt("FAIB","seen",0); // no children for FAIB
941 // Level 5 of B071 / Level 4 of BTO1 / Level 3 of FTOA / Level 2 of FLTA
942 gMC->Gsatt("FALA","seen",0); // no children for FALB
943 //--> gMC->Gsatt("FSTR","seen",-2);
944 // -> cfr previous settings
945 gMC->Gsatt("FPEA","seen",0); // no children for FPEA
946 gMC->Gsatt("FECA","seen",0); // no children for FECA
947 gMC->Gsatt("FWAA","seen",0); // no children for FWAA
948 gMC->Gsatt("FAIA","seen",0); // no children for FAIA
951 gMC->Gsatt("BTR2","seen",0); // BTR2 does not has sub-levels -
952 gMC->Gsatt("BTO2","seen",0);
955 gMC->Gsatt("BTR3","seen",0); // BTR3 do not have sub-levels -
956 gMC->Gsatt("BTO3","seen",0);
958 // for others Level 5, cfr. previous settings
960 gMC->Gdopt("hide","on");
961 gMC->Gdopt("shad","on");
962 gMC->Gsatt("*", "fill", 5);
963 gMC->SetClipBox(".");
964 gMC->SetClipBox("*", 0, 1000, 0, 1000, 0, 1000);
966 gMC->Gdraw("alic", 45, 40, 0, 10, 10, .015, .015);
967 gMC->Gdhead(1111,"TOF Strips V1");
968 gMC->Gdman(18, 4, "MAN");
969 gMC->Gdopt("hide","off");
972 //_____________________________________________________________________________
973 void AliTOFv4::CreateMaterials()
976 // Define materials for the Time Of Flight
978 AliTOF::CreateMaterials();
981 //_____________________________________________________________________________
982 void AliTOFv4::Init()
985 // Initialise the detector after the geometry has been defined
988 printf("%s: **************************************"
990 "**************************************\n",ClassName());
991 printf("\n%s: Version 4 of TOF initialing, "
992 "symmetric TOF - Full Coverage version\n",ClassName());
997 fIdFTOA = gMC->VolId("FTOA");
998 fIdFTOB = gMC->VolId("FTOB");
999 fIdFTOC = gMC->VolId("FTOC");
1000 fIdFLTA = gMC->VolId("FLTA");
1001 fIdFLTB = gMC->VolId("FLTB");
1002 fIdFLTC = gMC->VolId("FLTC");
1005 printf("%s: **************************************"
1007 "**************************************\n",ClassName());
1011 //_____________________________________________________________________________
1012 void AliTOFv4::StepManager()
1015 // Procedure called at each step in the Time Of Flight
1017 TLorentzVector mom, pos;
1018 Float_t xm[3],pm[3],xpad[3],ppad[3];
1019 Float_t hits[13],phi,phid,z;
1021 Int_t sector, plate, padx, padz, strip;
1022 Int_t copy, padzid, padxid, stripid, i;
1023 Int_t *idtmed = fIdtmed->GetArray()-499;
1024 Float_t incidenceAngle;
1026 if(gMC->GetMedium()==idtmed[513] &&
1027 gMC->IsTrackEntering() && gMC->TrackCharge()
1028 && gMC->CurrentVolID(copy)==fIdSens)
1030 // getting information about hit volumes
1032 padzid=gMC->CurrentVolOffID(2,copy);
1035 padxid=gMC->CurrentVolOffID(1,copy);
1038 stripid=gMC->CurrentVolOffID(4,copy);
1041 gMC->TrackPosition(pos);
1042 gMC->TrackMomentum(mom);
1044 // Double_t NormPos=1./pos.Rho();
1045 Double_t normMom=1./mom.Rho();
1047 // getting the cohordinates in pad ref system
1048 xm[0] = (Float_t)pos.X();
1049 xm[1] = (Float_t)pos.Y();
1050 xm[2] = (Float_t)pos.Z();
1052 pm[0] = (Float_t)mom.X()*normMom;
1053 pm[1] = (Float_t)mom.Y()*normMom;
1054 pm[2] = (Float_t)mom.Z()*normMom;
1056 gMC->Gmtod(xm,xpad,1);
1057 gMC->Gmtod(pm,ppad,2);
1059 incidenceAngle = TMath::ACos(ppad[1])*kRaddeg;
1064 if (TMath::Abs(z) <= fZlenA*0.5) plate = 3;
1065 if (z < (fZlenA*0.5+fZlenB) &&
1066 z > fZlenA*0.5) plate = 4;
1067 if (z >-(fZlenA*0.5+fZlenB) &&
1068 z < -fZlenA*0.5) plate = 2;
1069 if (z > (fZlenA*0.5+fZlenB)) plate = 5;
1070 if (z <-(fZlenA*0.5+fZlenB)) plate = 1;
1073 phid = phi*kRaddeg+180.;
1074 sector = Int_t (phid/20.);
1082 hits[6] = mom.Rho();
1087 hits[11]= incidenceAngle;
1088 hits[12]= gMC->Edep();
1096 AddHit(gAlice->CurrentTrack(),vol, hits);