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 ///////////////////////////////////////////////////////////////////////////////
20 // This class contains the functions for version 4 of the Time Of Flight //
23 // VERSION WITH 5 MODULES AND TILTED STRIPS //
25 // FULL COVERAGE VERSION +OPTION for PHOS holes //
28 // Fabrizio Pierella //
29 // University of Bologna - Italy //
34 <img src="picts/AliTOFv4T0Class.gif"> //
38 ///////////////////////////////////////////////////////////////////////////////
40 #include <Riostream.h>
42 #include "TVirtualMC.h"
45 #include <TGeometry.h>
46 #include <TLorentzVector.h>
49 #include <TVirtualMC.h>
54 #include "AliTOFv4T0.h"
55 #include "AliTOFGeometry.h"
60 //_____________________________________________________________________________
61 AliTOFv4T0::AliTOFv4T0()
64 // Default constructor
68 //_____________________________________________________________________________
69 AliTOFv4T0::AliTOFv4T0(const char *name, const char *title)
70 : AliTOF(name,title,"tzero")
73 // Standard constructor
76 // Check that FRAME is there otherwise we have no place where to
80 AliModule* frame=gAlice->GetModule("FRAME");
82 AliFatal("TOF needs FRAME to be present");
85 if (fTOFGeometry) delete fTOFGeometry;
86 fTOFGeometry = new AliTOFGeometry();
88 if(frame->IsVersion()==1) {
89 AliInfo(Form("Frame version %d", frame->IsVersion()));
90 AliInfo("Full Coverage for TOF");
93 AliInfo(Form("Frame version %d", frame->IsVersion()));
94 AliInfo("TOF with Holes for PHOS");
97 fTOFGeometry->SetHoles(fTOFHoles);
100 //____________________________________________________________________________
101 void AliTOFv4T0::BuildGeometry()
104 // Build TOF ROOT geometry for the ALICE event display
107 const int kColorTOF = 27;
110 top = gAlice->GetGeometry()->GetNode("alice");
112 // Position the different copies
113 const Float_t krTof =(AliTOFGeometry::Rmax()+AliTOFGeometry::Rmin())/2;
114 const Float_t khTof = AliTOFGeometry::Rmax()-AliTOFGeometry::Rmin();
115 const Int_t kNTof = AliTOFGeometry::NSectors();
116 const Float_t kPi = TMath::Pi();
117 const Float_t kangle = 2*kPi/kNTof;
120 // define offset for nodes
121 Float_t zOffsetC = AliTOFGeometry::MaxhZtof() - AliTOFGeometry::ZlenC()*0.5;
122 Float_t zOffsetB = AliTOFGeometry::MaxhZtof() - AliTOFGeometry::ZlenC() - AliTOFGeometry::ZlenB()*0.5;
123 Float_t zOffsetA = 0.;
124 // Define TOF basic volume
126 char nodeName0[7], nodeName1[7], nodeName2[7];
127 char nodeName3[7], nodeName4[7], rotMatNum[7];
129 new TBRIK("S_TOF_C","TOF box","void",
130 AliTOFGeometry::StripLength()*0.5,khTof*0.5,AliTOFGeometry::ZlenC()*0.5);
131 new TBRIK("S_TOF_B","TOF box","void",
132 AliTOFGeometry::StripLength()*0.5,khTof*0.5,AliTOFGeometry::ZlenB()*0.5);
133 new TBRIK("S_TOF_A","TOF box","void",
134 AliTOFGeometry::StripLength()*0.5,khTof*0.5,AliTOFGeometry::ZlenA()*0.5);
136 for (Int_t nodeNum=1;nodeNum<19;nodeNum++){
139 sprintf(rotMatNum,"rot50%i",nodeNum);
140 sprintf(nodeName0,"FTO00%i",nodeNum);
141 sprintf(nodeName1,"FTO10%i",nodeNum);
142 sprintf(nodeName2,"FTO20%i",nodeNum);
143 sprintf(nodeName3,"FTO30%i",nodeNum);
144 sprintf(nodeName4,"FTO40%i",nodeNum);
147 sprintf(rotMatNum,"rot5%i",nodeNum);
148 sprintf(nodeName0,"FTO0%i",nodeNum);
149 sprintf(nodeName1,"FTO1%i",nodeNum);
150 sprintf(nodeName2,"FTO2%i",nodeNum);
151 sprintf(nodeName3,"FTO3%i",nodeNum);
152 sprintf(nodeName4,"FTO4%i",nodeNum);
155 new TRotMatrix(rotMatNum,rotMatNum,90,-20*nodeNum,90,90-20*nodeNum,0,0);
156 ang = (4.5-nodeNum) * kangle;
159 node = new TNode(nodeName0,nodeName0,"S_TOF_C",krTof*TMath::Cos(ang),krTof*TMath::Sin(ang),zOffsetC,rotMatNum);
160 node->SetLineColor(kColorTOF);
164 node = new TNode(nodeName1,nodeName1,"S_TOF_C",krTof*TMath::Cos(ang),krTof*TMath::Sin(ang),-zOffsetC,rotMatNum);
165 node->SetLineColor(kColorTOF);
169 node = new TNode(nodeName2,nodeName2,"S_TOF_B",krTof*TMath::Cos(ang),krTof*TMath::Sin(ang),zOffsetB,rotMatNum);
170 node->SetLineColor(kColorTOF);
174 node = new TNode(nodeName3,nodeName3,"S_TOF_B",krTof*TMath::Cos(ang),krTof*TMath::Sin(ang),-zOffsetB,rotMatNum);
175 node->SetLineColor(kColorTOF);
179 node = new TNode(nodeName4,nodeName4,"S_TOF_A",krTof*TMath::Cos(ang),krTof*TMath::Sin(ang),zOffsetA,rotMatNum);
180 node->SetLineColor(kColorTOF);
182 } // end loop on nodeNum
187 //_____________________________________________________________________________
188 void AliTOFv4T0::CreateGeometry()
191 // Create geometry for Time Of Flight version 0
195 <img src="picts/AliTOFv4T0.gif">
199 // Creates common geometry
201 AliTOF::CreateGeometry();
205 //_____________________________________________________________________________
206 void AliTOFv4T0::TOFpc(Float_t xtof, Float_t ytof, Float_t zlenC,
207 Float_t zlenB, Float_t zlenA, Float_t ztof0)
210 // Definition of the Time Of Fligh Resistive Plate Chambers
211 // xFLT, yFLT, zFLT - sizes of TOF modules (large)
215 Int_t *idtmed = fIdtmed->GetArray()-499;
219 Float_t radius = AliTOFGeometry::Rmin()+2.;//cm
224 par[2] = zlenC * 0.5;
225 gMC->Gsvolu("FTOC", "BOX ", idtmed[506], par, 3);
226 par[2] = zlenB * 0.5;
227 gMC->Gsvolu("FTOB", "BOX ", idtmed[506], par, 3);
228 par[2] = zlenA * 0.5;
229 gMC->Gsvolu("FTOA", "BOX ", idtmed[506], par, 3);
232 // Positioning of modules
234 Float_t zcor1 = ztof0 - zlenC*0.5;
235 Float_t zcor2 = ztof0 - zlenC - zlenB*0.5;
238 AliMatrix(idrotm[0], 90., 0., 0., 0., 90,-90.);
239 AliMatrix(idrotm[1], 90.,180., 0., 0., 90, 90.);
241 gMC->Gspos("FTOC", 1, "BTO1", 0, zcor1, 0, idrotm[0], "ONLY");
242 gMC->Gspos("FTOC", 2, "BTO1", 0, -zcor1, 0, idrotm[1], "ONLY");
243 gMC->Gspos("FTOC", 1, "BTO2", 0, zcor1, 0, idrotm[0], "ONLY");
244 gMC->Gspos("FTOC", 2, "BTO2", 0, -zcor1, 0, idrotm[1], "ONLY");
245 gMC->Gspos("FTOC", 1, "BTO3", 0, zcor1, 0, idrotm[0], "ONLY");
246 gMC->Gspos("FTOC", 2, "BTO3", 0, -zcor1, 0, idrotm[1], "ONLY");
248 gMC->Gspos("FTOB", 1, "BTO1", 0, zcor2, 0, idrotm[0], "ONLY");
249 gMC->Gspos("FTOB", 2, "BTO1", 0, -zcor2, 0, idrotm[1], "ONLY");
250 gMC->Gspos("FTOB", 1, "BTO2", 0, zcor2, 0, idrotm[0], "ONLY");
251 gMC->Gspos("FTOB", 2, "BTO2", 0, -zcor2, 0, idrotm[1], "ONLY");
252 gMC->Gspos("FTOB", 1, "BTO3", 0, zcor2, 0, idrotm[0], "ONLY");
253 gMC->Gspos("FTOB", 2, "BTO3", 0, -zcor2, 0, idrotm[1], "ONLY");
255 gMC->Gspos("FTOA", 0, "BTO1", 0, zcor3, 0, idrotm[0], "ONLY");
256 if(!fTOFHoles)gMC->Gspos("FTOA", 0, "BTO2", 0, zcor3, 0, idrotm[0], "ONLY");
257 gMC->Gspos("FTOA", 0, "BTO3", 0, zcor3, 0, idrotm[0], "ONLY");
260 Float_t db = 0.5; // cm
261 Float_t xFLT, xFST, yFLT, zFLTA, zFLTB, zFLTC;
263 xFLT = AliTOFGeometry::StripLength();
269 xFST = xFLT - AliTOFGeometry::DeadBndX()*2; // cm
271 // Sizes of MRPC pads
273 Float_t yPad = 0.505; //cm
275 // Large not sensitive volumes with Insensitive Freon
279 AliDebug(1, "************************* TOF geometry **************************");
281 par[2] = (zFLTA *0.5);
282 gMC->Gsvolu("FLTA", "BOX ", idtmed[512], par, 3); // Insensitive Freon
283 gMC->Gspos ("FLTA", 0, "FTOA", 0., 0., 0., 0, "ONLY");
285 par[2] = (zFLTB * 0.5);
286 gMC->Gsvolu("FLTB", "BOX ", idtmed[512], par, 3); // Insensitive Freon
287 gMC->Gspos ("FLTB", 0, "FTOB", 0., 0., 0., 0, "ONLY");
289 par[2] = (zFLTC * 0.5);
290 gMC->Gsvolu("FLTC", "BOX ", idtmed[512], par, 3); // Insensitive Freon
291 gMC->Gspos ("FLTC", 0, "FTOC", 0., 0., 0., 0, "ONLY");
293 ///// Layers of Aluminum before and after detector /////
294 ///// Aluminum Box for Modules (1.8 mm thickness) /////
295 ///// lateral walls not simulated for the time being
296 // const Float_t khAlWall = 0.18;
298 const Float_t khAlWall = 0.11;
300 par[1] = khAlWall/2.; // cm
301 ycoor = -yFLT/2 + par[1];
302 par[2] = (zFLTA *0.5);
303 gMC->Gsvolu("FALA", "BOX ", idtmed[508], par, 3); // Alluminium
304 gMC->Gspos ("FALA", 1, "FLTA", 0., ycoor, 0., 0, "ONLY");
305 gMC->Gspos ("FALA", 2, "FLTA", 0.,-ycoor, 0., 0, "ONLY");
306 par[2] = (zFLTB *0.5);
307 gMC->Gsvolu("FALB", "BOX ", idtmed[508], par, 3); // Alluminium
308 gMC->Gspos ("FALB", 1, "FLTB", 0., ycoor, 0., 0, "ONLY");
309 gMC->Gspos ("FALB", 2, "FLTB", 0.,-ycoor, 0., 0, "ONLY");
310 par[2] = (zFLTC *0.5);
311 gMC->Gsvolu("FALC", "BOX ", idtmed[508], par, 3); // Alluminium
312 gMC->Gspos ("FALC", 1, "FLTC", 0., ycoor, 0., 0, "ONLY");
313 gMC->Gspos ("FALC", 2, "FLTC", 0.,-ycoor, 0., 0, "ONLY");
315 ///////////////// Detector itself //////////////////////
317 const Float_t kdeadBound = AliTOFGeometry::DeadBndZ(); //cm non-sensitive between the pad edge
318 //and the boundary of the strip
319 const Int_t knx = AliTOFGeometry::NpadX(); // number of pads along x
320 const Int_t knz = AliTOFGeometry::NpadZ(); // number of pads along z
322 Float_t zSenStrip = AliTOFGeometry::ZPad() * AliTOFGeometry::NpadZ(); // cm
323 Float_t stripWidth = zSenStrip + 2*kdeadBound;
327 par[2] = stripWidth*0.5;
329 // new description for strip volume -double stack strip-
330 // -- all constants are expressed in cm
331 // heigth of different layers
332 const Float_t khhony = 0.8 ; // heigth of HONY Layer
333 const Float_t khpcby = 0.08 ; // heigth of PCB Layer
334 const Float_t khmyly = 0.035 ; // heigth of MYLAR Layer
335 const Float_t khgraphy = 0.02 ; // heigth of GRAPHITE Layer
336 const Float_t khglasseiy = 0.135; // 0.6 Ext. Glass + 1.1 i.e. (Int. Glass/2) (mm)
337 const Float_t khsensmy = 0.11 ; // heigth of Sensitive Freon Mixture
338 const Float_t kwsensmz = 2*3.5 ; // cm
339 const Float_t klsensmx = 48*2.5; // cm
340 const Float_t kwpadz = 3.5; // cm z dimension of the FPAD volume
341 const Float_t klpadx = 2.5; // cm x dimension of the FPAD volume
343 // heigth of the FSTR Volume (the strip volume)
344 const Float_t khstripy = 2*khhony+3*khpcby+4*(khmyly+khgraphy+khglasseiy)+2*khsensmy;
345 // width of the FSTR Volume (the strip volume)
346 const Float_t kwstripz = 10.;
347 // length of the FSTR Volume (the strip volume)
348 const Float_t klstripx = 122.;
350 Float_t parfp[3]={klstripx*0.5,khstripy*0.5,kwstripz*0.5};
351 // Coordinates of the strip center in the strip reference frame;
352 // used for positioninG internal strip volumes
353 Float_t posfp[3]={0.,0.,0.};
356 // FSTR volume definition-filling this volume with non sensitive Gas Mixture
357 gMC->Gsvolu("FSTR","BOX",idtmed[512],parfp,3);
358 //-- HONY Layer definition
360 parfp[1] = khhony*0.5;
362 gMC->Gsvolu("FHON","BOX",idtmed[503],parfp,3);
363 // positioning 2 HONY Layers on FSTR volume
365 posfp[1]=-khstripy*0.5+parfp[1];
366 gMC->Gspos("FHON",1,"FSTR",0., posfp[1],0.,0,"ONLY");
367 gMC->Gspos("FHON",2,"FSTR",0.,-posfp[1],0.,0,"ONLY");
369 //-- PCB Layer definition
371 parfp[1] = khpcby*0.5;
372 gMC->Gsvolu("FPCB","BOX",idtmed[504],parfp,3);
373 // positioning 2 PCB Layers on FSTR volume
374 posfp[1]=-khstripy*0.5+khhony+parfp[1];
375 gMC->Gspos("FPCB",1,"FSTR",0., posfp[1],0.,0,"ONLY");
376 gMC->Gspos("FPCB",2,"FSTR",0.,-posfp[1],0.,0,"ONLY");
377 // positioning the central PCB layer
378 gMC->Gspos("FPCB",3,"FSTR",0.,0.,0.,0,"ONLY");
382 //-- MYLAR Layer definition
384 parfp[1] = khmyly*0.5;
385 gMC->Gsvolu("FMYL","BOX",idtmed[511],parfp,3);
386 // positioning 2 MYLAR Layers on FSTR volume
387 posfp[1] = -khstripy*0.5+khhony+khpcby+parfp[1];
388 gMC->Gspos("FMYL",1,"FSTR",0., posfp[1],0.,0,"ONLY");
389 gMC->Gspos("FMYL",2,"FSTR",0.,-posfp[1],0.,0,"ONLY");
390 // adding further 2 MYLAR Layers on FSTR volume
391 posfp[1] = khpcby*0.5+parfp[1];
392 gMC->Gspos("FMYL",3,"FSTR",0., posfp[1],0.,0,"ONLY");
393 gMC->Gspos("FMYL",4,"FSTR",0.,-posfp[1],0.,0,"ONLY");
396 //-- Graphite Layer definition
398 parfp[1] = khgraphy*0.5;
399 gMC->Gsvolu("FGRP","BOX",idtmed[502],parfp,3);
400 // positioning 2 Graphite Layers on FSTR volume
401 posfp[1] = -khstripy*0.5+khhony+khpcby+khmyly+parfp[1];
402 gMC->Gspos("FGRP",1,"FSTR",0., posfp[1],0.,0,"ONLY");
403 gMC->Gspos("FGRP",2,"FSTR",0.,-posfp[1],0.,0,"ONLY");
404 // adding further 2 Graphite Layers on FSTR volume
405 posfp[1] = khpcby*0.5+khmyly+parfp[1];
406 gMC->Gspos("FGRP",3,"FSTR",0., posfp[1],0.,0,"ONLY");
407 gMC->Gspos("FGRP",4,"FSTR",0.,-posfp[1],0.,0,"ONLY");
410 //-- Glass (EXT. +Semi INT.) Layer definition
412 parfp[1] = khglasseiy*0.5;
413 gMC->Gsvolu("FGLA","BOX",idtmed[514],parfp,3);
414 // positioning 2 Glass Layers on FSTR volume
415 posfp[1] = -khstripy*0.5+khhony+khpcby+khmyly+khgraphy+parfp[1];
416 gMC->Gspos("FGLA",1,"FSTR",0., posfp[1],0.,0,"ONLY");
417 gMC->Gspos("FGLA",2,"FSTR",0.,-posfp[1],0.,0,"ONLY");
418 // adding further 2 Glass Layers on FSTR volume
419 posfp[1] = khpcby*0.5+khmyly+khgraphy+parfp[1];
420 gMC->Gspos("FGLA",3,"FSTR",0., posfp[1],0.,0,"ONLY");
421 gMC->Gspos("FGLA",4,"FSTR",0.,-posfp[1],0.,0,"ONLY");
424 //-- Sensitive Mixture Layer definition
426 parfp[0] = klsensmx*0.5;
427 parfp[1] = khsensmy*0.5;
428 parfp[2] = kwsensmz*0.5;
429 gMC->Gsvolu("FSEN","BOX",idtmed[513],parfp,3);
430 gMC->Gsvolu("FNSE","BOX",idtmed[512],parfp,3);
431 // positioning 2 gas Layers on FSTR volume
432 // the upper is insensitive freon
433 // while the remaining is sensitive
434 posfp[1] = khpcby*0.5+khmyly+khgraphy+khglasseiy+parfp[1];
435 gMC->Gspos("FNSE",0,"FSTR", 0., posfp[1],0.,0,"ONLY");
436 gMC->Gspos("FSEN",0,"FSTR", 0.,-posfp[1],0.,0,"ONLY");
438 // dividing FSEN along z in knz=2 and along x in knx=48
440 gMC->Gsdvn("FSEZ","FSEN",knz,3);
441 gMC->Gsdvn("FSEX","FSEZ",knx,1);
443 // FPAD volume definition
445 parfp[0] = klpadx*0.5;
446 parfp[1] = khsensmy*0.5;
447 parfp[2] = kwpadz*0.5;
448 gMC->Gsvolu("FPAD","BOX",idtmed[513],parfp,3);
449 // positioning the FPAD volumes on previous divisions
450 gMC->Gspos("FPAD",0,"FSEX",0.,0.,0.,0,"ONLY");
453 ///////////////////Positioning A module//////////////////////////
456 for(Int_t istrip =0; istrip < fTOFGeometry->NStripA(); istrip++){
458 Float_t ang = fTOFGeometry->GetAngles(2,istrip);
459 AliMatrix (idrotm[0],90.,0.,90.-ang,90.,-ang, 90.);
461 Float_t zpos = tan(ang)*radius;
462 Float_t ypos= fTOFGeometry->GetHeights(2,istrip);
463 gMC->Gspos("FSTR",AliTOFGeometry::NStripA()-istrip,"FLTA",0.,ypos, zpos,idrotm[0], "ONLY");
464 AliDebug(1, Form("y = %f, z = %f, , z coord = %f, Rot ang = %f, St. %2i",ypos,zpos,tan(ang)*radius ,ang*kRaddeg,istrip));
468 ///////////////////Positioning B module//////////////////////////
470 for(Int_t istrip =0; istrip < fTOFGeometry->NStripB(); istrip++){
472 Float_t ang = fTOFGeometry->GetAngles(3,istrip);
473 AliMatrix (idrotm[0],90.,0.,90.-ang,90.,-ang, 90.);
475 Float_t zpos = tan(ang)*radius+(zFLTA*0.5+zFLTB*0.5+db);
476 Float_t ypos= fTOFGeometry->GetHeights(3,istrip);
477 gMC->Gspos("FSTR",istrip+1,"FLTB",0.,ypos, zpos,idrotm[nrot], "ONLY");
478 AliDebug(1, Form("y = %f, z = %f, , z coord = %f, Rot ang = %f, St. %2i",ypos,zpos,tan(ang)*radius,ang*kRaddeg,istrip));
482 ///////////////////Positioning C module//////////////////////////
484 for(Int_t istrip =0; istrip < fTOFGeometry->NStripC(); istrip++){
486 Float_t ang = fTOFGeometry->GetAngles(4,istrip);
487 AliMatrix (idrotm[0],90.,0.,90.-ang,90.,-ang, 90.);
489 Float_t zpos = tan(ang)*radius+(zFLTC*0.5+zFLTB+zFLTA*0.5+db*2);
490 Float_t ypos= fTOFGeometry->GetHeights(4,istrip);
491 gMC->Gspos("FSTR",istrip+1,"FLTC",0.,ypos, zpos,idrotm[nrot], "ONLY");
492 AliDebug(1, Form("y = %f, z = %f, z coord = %f, Rot ang = %f, St. %2i",ypos,zpos,tan(ang)*radius,ang*kRaddeg,istrip));
495 ////////// Layers after strips /////////////////
496 // Al Layer thickness (2.3mm) factor 0.7
498 Float_t overSpace = AliTOFGeometry::OverSpc();//cm
501 par[1] = 0.115*0.7; // factor 0.7
502 par[2] = (zFLTA *0.5);
503 ycoor = -yFLT/2 + overSpace + par[1];
504 gMC->Gsvolu("FPEA", "BOX ", idtmed[508], par, 3); // Al
505 gMC->Gspos ("FPEA", 0, "FLTA", 0., ycoor, 0., 0, "ONLY");
506 par[2] = (zFLTB *0.5);
507 gMC->Gsvolu("FPEB", "BOX ", idtmed[508], par, 3); // Al
508 gMC->Gspos ("FPEB", 0, "FLTB", 0., ycoor, 0., 0, "ONLY");
509 par[2] = (zFLTC *0.5);
510 gMC->Gsvolu("FPEC", "BOX ", idtmed[508], par, 3); // Al
511 gMC->Gspos ("FPEC", 0, "FLTC", 0., ycoor, 0., 0, "ONLY");
514 // plexiglass thickness: 1.5 mm ; factor 0.3
518 par[1] = 0.075*0.3; // factor 0.3
519 par[2] = (zFLTA *0.5);
521 gMC->Gsvolu("FECA", "BOX ", idtmed[505], par, 3); // Plexigl.
522 gMC->Gspos ("FECA", 0, "FLTA", 0., ycoor, 0., 0, "ONLY");
523 par[2] = (zFLTB *0.5);
524 gMC->Gsvolu("FECB", "BOX ", idtmed[505], par, 3); // Plexigl.
525 gMC->Gspos ("FECB", 0, "FLTB", 0., ycoor, 0., 0, "ONLY");
526 par[2] = (zFLTC *0.5);
527 gMC->Gsvolu("FECC", "BOX ", idtmed[505], par, 3); // Plexigl.
528 gMC->Gspos ("FECC", 0, "FLTC", 0., ycoor, 0., 0, "ONLY");
534 par[1] = (yFLT/2-ycoor-khAlWall)*0.5; // Aluminum layer considered (0.18 cm)
535 par[2] = (zFLTA *0.5);
537 gMC->Gsvolu("FAIA", "BOX ", idtmed[500], par, 3); // Air
538 gMC->Gspos ("FAIA", 0, "FLTA", 0., ycoor, 0., 0, "ONLY");
539 par[2] = (zFLTB *0.5);
540 gMC->Gsvolu("FAIB", "BOX ", idtmed[500], par, 3); // Air
541 gMC->Gspos ("FAIB", 0, "FLTB", 0., ycoor, 0., 0, "ONLY");
542 par[2] = (zFLTC *0.5);
543 gMC->Gsvolu("FAIC", "BOX ", idtmed[500], par, 3); // Air
544 gMC->Gspos ("FAIC", 0, "FLTC", 0., ycoor, 0., 0, "ONLY");
547 // start with cards and cooling tubes
548 // finally, cards, cooling tubes and layer for thermal dispersion
550 // card volume definition
552 // see GEOM200 in GEANT manual
555 AliMatrix(idrotm[98], 90., 0., 90., 90., 0., 0.); // 0 deg
561 gMC->Gsvolu("FCAR", "BOX ", idtmed[504], cardpar, 3); // PCB Card
562 //alu plate volume definition
565 gMC->Gsvolu("FALP", "BOX ", idtmed[508], cardpar, 3); // Alu Plate
568 // central module positioning (FAIA)
569 Float_t cardpos[3], aplpos2, stepforcardA=6.625;
573 Float_t aplpos1 = -2.;
575 for (icard=0; icard < fTOFGeometry->NStripA(); ++icard) {
576 cardpos[2]= cardpos[2]+stepforcardA;
577 aplpos2 = cardpos[2]+0.15;
578 gMC->Gspos("FCAR",icard,"FAIA",cardpos[0],cardpos[1],cardpos[2],idrotm[98],"ONLY");
579 gMC->Gspos("FALP",icard,"FAIA",cardpos[0],aplpos1,aplpos2,idrotm[98],"ONLY");
584 // intermediate module positioning (FAIB)
585 Float_t stepforcardB= 7.05;
587 for (icard=0; icard < fTOFGeometry->NStripB(); ++icard) {
588 cardpos[2]= cardpos[2]+stepforcardB;
589 aplpos2 = cardpos[2]+0.15;
590 gMC->Gspos("FCAR",icard,"FAIB",cardpos[0],cardpos[1],cardpos[2],idrotm[98],"ONLY");
591 gMC->Gspos("FALP",icard,"FAIB",cardpos[0],aplpos1,aplpos2,idrotm[98],"ONLY");
595 // outer module positioning (FAIC)
596 Float_t stepforcardC= 8.45238;
598 for (icard=0; icard < fTOFGeometry->NStripC(); ++icard) {
599 cardpos[2]= cardpos[2]+stepforcardC;
600 aplpos2 = cardpos[2]+0.15;
601 gMC->Gspos("FCAR",icard,"FAIC",cardpos[0],cardpos[1],cardpos[2],idrotm[98],"ONLY");
602 gMC->Gspos("FALP",icard,"FAIC",cardpos[0],aplpos1,aplpos2,idrotm[98],"ONLY");
605 // tube volume definition
611 gMC->Gsvolu("FTUB", "TUBE", idtmed[516], tubepar, 3); // cooling tubes (steel)
615 gMC->Gsvolu("FITU", "TUBE", idtmed[515], tubepar, 3); // cooling water
616 // positioning water tube into the steel one
617 gMC->Gspos("FITU",1,"FTUB",0.,0.,0.,0,"ONLY");
621 AliMatrix(idrotm[99], 180., 90., 90., 90., 90., 0.);
622 // central module positioning (FAIA)
623 Float_t tubepos[3], tdis=0.6;
625 tubepos[1]= cardpos[1];
626 tubepos[2]= -53.+tdis;
629 for (itub=0; itub < fTOFGeometry->NStripA(); ++itub) {
630 tubepos[2]= tubepos[2]+stepforcardA;
631 gMC->Gspos("FTUB",itub,"FAIA",tubepos[0],tubepos[1],tubepos[2],idrotm[99],
636 // intermediate module positioning (FAIB)
637 tubepos[2]= -70.5+tdis;
638 for (itub=0; itub < fTOFGeometry->NStripB(); ++itub) {
639 tubepos[2]= tubepos[2]+stepforcardB;
640 gMC->Gspos("FTUB",itub,"FAIB",tubepos[0],tubepos[1],tubepos[2],idrotm[99],
644 // outer module positioning (FAIC)
645 tubepos[2]= -88.75+tdis;
646 for (itub=0; itub < fTOFGeometry->NStripC(); ++itub) {
647 tubepos[2]= tubepos[2]+stepforcardC;
648 gMC->Gspos("FTUB",itub,"FAIC",tubepos[0],tubepos[1],tubepos[2],idrotm[99],
653 //_____________________________________________________________________________
654 void AliTOFv4T0::DrawModule() const
657 // Draw a shaded view of the Time Of Flight version 4
659 // Set everything unseen
660 gMC->Gsatt("*", "seen", -1);
662 // Set ALIC mother transparent
663 gMC->Gsatt("ALIC","SEEN",0);
665 // Set the volumes visible
666 gMC->Gsatt("ALIC","SEEN",0);
668 gMC->Gsatt("FTOA","SEEN",1);
669 gMC->Gsatt("FTOB","SEEN",1);
670 gMC->Gsatt("FTOC","SEEN",1);
671 gMC->Gsatt("FLTA","SEEN",1);
672 gMC->Gsatt("FLTB","SEEN",1);
673 gMC->Gsatt("FLTC","SEEN",1);
674 gMC->Gsatt("FPLA","SEEN",1);
675 gMC->Gsatt("FPLB","SEEN",1);
676 gMC->Gsatt("FPLC","SEEN",1);
677 gMC->Gsatt("FSTR","SEEN",1);
678 gMC->Gsatt("FPEA","SEEN",1);
679 gMC->Gsatt("FPEB","SEEN",1);
680 gMC->Gsatt("FPEC","SEEN",1);
682 gMC->Gsatt("FLZ1","SEEN",0);
683 gMC->Gsatt("FLZ2","SEEN",0);
684 gMC->Gsatt("FLZ3","SEEN",0);
685 gMC->Gsatt("FLX1","SEEN",0);
686 gMC->Gsatt("FLX2","SEEN",0);
687 gMC->Gsatt("FLX3","SEEN",0);
688 gMC->Gsatt("FPAD","SEEN",0);
690 gMC->Gdopt("hide", "on");
691 gMC->Gdopt("shad", "on");
692 gMC->Gsatt("*", "fill", 7);
693 gMC->SetClipBox(".");
694 gMC->SetClipBox("*", 0, 1000, -1000, 1000, -1000, 1000);
696 gMC->Gdraw("alic", 40, 30, 0, 12, 9.5, .02, .02);
697 gMC->Gdhead(1111, "Time Of Flight");
698 gMC->Gdman(18, 4, "MAN");
699 gMC->Gdopt("hide","off");
701 //_____________________________________________________________________________
702 void AliTOFv4T0::DrawDetectorModules()
705 // Draw a shaded view of the TOF detector version 4
709 //Set ALIC mother transparent
710 gMC->Gsatt("ALIC","SEEN",0);
713 //Set volumes visible
716 // Level 1 for TOF volumes
717 gMC->Gsatt("B077","seen",0);
720 //==========> Level 2
722 gMC->Gsatt("B076","seen",-1); // all B076 sub-levels skipped -
723 gMC->Gsatt("B071","seen",0);
724 gMC->Gsatt("B074","seen",0);
725 gMC->Gsatt("B075","seen",0);
726 gMC->Gsatt("B080","seen",0); // B080 does not has sub-level
730 gMC->Gsatt("B063","seen",-1); // all B063 sub-levels skipped -
731 gMC->Gsatt("B065","seen",-1); // all B065 sub-levels skipped -
732 gMC->Gsatt("B067","seen",-1); // all B067 sub-levels skipped -
733 gMC->Gsatt("B069","seen",-1); // all B069 sub-levels skipped -
734 gMC->Gsatt("B056","seen",0); // B056 does not has sub-levels -
735 gMC->Gsatt("B059","seen",-1); // all B059 sub-levels skipped -
736 gMC->Gsatt("B072","seen",-1); // all B072 sub-levels skipped -
737 gMC->Gsatt("BTR1","seen",0); // BTR1 do not have sub-levels -
738 gMC->Gsatt("BTO1","seen",0);
742 gMC->Gsatt("BTR2","seen",0); // BTR2 does not has sub-levels -
743 gMC->Gsatt("BTO2","seen",0);
746 gMC->Gsatt("BTR3","seen",0); // BTR3 do not have sub-levels -
747 gMC->Gsatt("BTO3","seen",0);
749 // ==================> Level 3
750 // Level 3 of B071 / Level 2 of BTO1
751 gMC->Gsatt("FTOC","seen",-2);
752 gMC->Gsatt("FTOB","seen",-2);
753 gMC->Gsatt("FTOA","seen",-2);
755 // Level 3 of B074 / Level 2 of BTO2
756 // -> cfr previous settings
758 // Level 3 of B075 / Level 2 of BTO3
759 // -> cfr previous settings
761 gMC->Gdopt("hide","on");
762 gMC->Gdopt("shad","on");
763 gMC->Gsatt("*", "fill", 5);
764 gMC->SetClipBox(".");
765 gMC->SetClipBox("*", 0, 1000, 0, 1000, 0, 1000);
767 gMC->Gdraw("alic", 45, 40, 0, 10, 10, .015, .015);
768 gMC->Gdhead(1111,"TOF detector V1");
769 gMC->Gdman(18, 4, "MAN");
770 gMC->Gdopt("hide","off");
773 //_____________________________________________________________________________
774 void AliTOFv4T0::DrawDetectorStrips()
777 // Draw a shaded view of the TOF strips for version 4
780 //Set ALIC mother transparent
781 gMC->Gsatt("ALIC","SEEN",0);
784 //Set volumes visible
786 // Level 1 for TOF volumes
787 gMC->Gsatt("B077","seen",0);
789 //==========> Level 2
791 gMC->Gsatt("B076","seen",-1); // all B076 sub-levels skipped -
792 gMC->Gsatt("B071","seen",0);
793 gMC->Gsatt("B074","seen",0);
794 gMC->Gsatt("B075","seen",0);
795 gMC->Gsatt("B080","seen",0); // B080 does not has sub-level
798 gMC->Gsatt("B063","seen",-1); // all B063 sub-levels skipped -
799 gMC->Gsatt("B065","seen",-1); // all B065 sub-levels skipped -
800 gMC->Gsatt("B067","seen",-1); // all B067 sub-levels skipped -
801 gMC->Gsatt("B069","seen",-1); // all B069 sub-levels skipped -
802 gMC->Gsatt("B056","seen",0); // B056 does not has sub-levels -
803 gMC->Gsatt("B059","seen",-1); // all B059 sub-levels skipped -
804 gMC->Gsatt("B072","seen",-1); // all B072 sub-levels skipped -
805 gMC->Gsatt("BTR1","seen",0); // BTR1 do not have sub-levels -
806 gMC->Gsatt("BTO1","seen",0);
808 // ==================> Level 3
809 // Level 3 of B071 / Level 2 of BTO1
810 gMC->Gsatt("FTOC","seen",0);
811 gMC->Gsatt("FTOB","seen",0);
812 gMC->Gsatt("FTOA","seen",0);
814 // Level 3 of B074 / Level 2 of BTO2
815 // -> cfr previous settings
817 // Level 3 of B075 / Level 2 of BTO3
818 // -> cfr previous settings
821 // ==========================> Level 4
822 // Level 4 of B071 / Level 3 of BTO1 / Level 2 of FTOC
823 gMC->Gsatt("FLTC","seen",0);
824 // Level 4 of B071 / Level 3 of BTO1 / Level 2 of FTOB
825 gMC->Gsatt("FLTB","seen",0);
826 // Level 4 of B071 / Level 3 of BTO1 / Level 2 of FTOA
827 gMC->Gsatt("FLTA","seen",0);
829 // Level 4 of B074 / Level 3 of BTO2 / Level 2 of FTOC
830 // -> cfr previous settings
831 // Level 4 of B074 / Level 3 of BTO2 / Level 2 of FTOB
832 // -> cfr previous settings
834 // Level 4 of B075 / Level 3 of BTO3 / Level 2 of FTOC
835 // -> cfr previous settings
837 //======================================> Level 5
838 // Level 5 of B071 / Level 4 of BTO1 / Level 3 of FTOC / Level 2 of FLTC
839 gMC->Gsatt("FALC","seen",0); // no children for FALC
840 gMC->Gsatt("FSTR","seen",-2);
841 gMC->Gsatt("FPEC","seen",0); // no children for FPEC
842 gMC->Gsatt("FECC","seen",0); // no children for FECC
843 gMC->Gsatt("FWAC","seen",0); // no children for FWAC
844 gMC->Gsatt("FAIC","seen",0); // no children for FAIC
846 // Level 5 of B071 / Level 4 of BTO1 / Level 3 of FTOB / Level 2 of FLTB
847 gMC->Gsatt("FALB","seen",0); // no children for FALB
848 //--> gMC->Gsatt("FSTR","seen",-2);
851 // -> cfr previous settings
852 gMC->Gsatt("FPEB","seen",0); // no children for FPEB
853 gMC->Gsatt("FECB","seen",0); // no children for FECB
854 gMC->Gsatt("FWAB","seen",0); // no children for FWAB
855 gMC->Gsatt("FAIB","seen",0); // no children for FAIB
857 // Level 5 of B071 / Level 4 of BTO1 / Level 3 of FTOA / Level 2 of FLTA
858 gMC->Gsatt("FALA","seen",0); // no children for FALB
859 //--> gMC->Gsatt("FSTR","seen",-2);
860 // -> cfr previous settings
861 gMC->Gsatt("FPEA","seen",0); // no children for FPEA
862 gMC->Gsatt("FECA","seen",0); // no children for FECA
863 gMC->Gsatt("FWAA","seen",0); // no children for FWAA
864 gMC->Gsatt("FAIA","seen",0); // no children for FAIA
867 gMC->Gsatt("BTR2","seen",0); // BTR2 does not has sub-levels -
868 gMC->Gsatt("BTO2","seen",0);
871 gMC->Gsatt("BTR3","seen",0); // BTR3 do not have sub-levels -
872 gMC->Gsatt("BTO3","seen",0);
874 // for others Level 5, cfr. previous settings
876 gMC->Gdopt("hide","on");
877 gMC->Gdopt("shad","on");
878 gMC->Gsatt("*", "fill", 5);
879 gMC->SetClipBox(".");
880 gMC->SetClipBox("*", 0, 1000, 0, 1000, 0, 1000);
882 gMC->Gdraw("alic", 45, 40, 0, 10, 10, .015, .015);
883 gMC->Gdhead(1111,"TOF Strips V1");
884 gMC->Gdman(18, 4, "MAN");
885 gMC->Gdopt("hide","off");
888 //_____________________________________________________________________________
889 void AliTOFv4T0::CreateMaterials()
892 // Define materials for the Time Of Flight
894 AliTOF::CreateMaterials();
897 //_____________________________________________________________________________
898 void AliTOFv4T0::Init()
901 // Initialise the detector after the geometry has been defined
903 AliDebug(1, "**************************************"
905 "**************************************");
906 AliDebug(1, " Version 4 of TOF initialing, "
907 "symmetric TOF - Full Coverage version");
911 fIdFTOA = gMC->VolId("FTOA");
912 fIdFTOB = gMC->VolId("FTOB");
913 fIdFTOC = gMC->VolId("FTOC");
914 fIdFLTA = gMC->VolId("FLTA");
915 fIdFLTB = gMC->VolId("FLTB");
916 fIdFLTC = gMC->VolId("FLTC");
918 AliDebug(1, "**************************************"
920 "**************************************");
923 //_____________________________________________________________________________
924 void AliTOFv4T0::StepManager()
928 // Procedure called at each step in the Time Of Flight
931 TLorentzVector mom, pos;
932 Float_t xm[3],pm[3],xpad[3],ppad[3];
933 Float_t hits[14],phi,phid,z;
935 Int_t sector, plate, padx, padz, strip;
936 Int_t copy, padzid, padxid, stripid, i;
937 Int_t *idtmed = fIdtmed->GetArray()-499;
938 Float_t incidenceAngle;
940 if(gMC->GetMedium()==idtmed[513] &&
941 gMC->IsTrackEntering() && gMC->TrackCharge()
942 && gMC->CurrentVolID(copy)==fIdSens)
945 AddTrackReference(gAlice->GetMCApp()->GetCurrentTrackNumber());
947 // getting information about hit volumes
949 padzid=gMC->CurrentVolOffID(2,copy);
953 padxid=gMC->CurrentVolOffID(1,copy);
956 stripid=gMC->CurrentVolOffID(4,copy);
959 gMC->TrackPosition(pos);
960 gMC->TrackMomentum(mom);
963 // Double_t NormPos=1./pos.Rho();
965 Double_t normMom=1./mom.Rho();
967 // getting the cohordinates in pad ref system
969 xm[0] = (Float_t)pos.X();
970 xm[1] = (Float_t)pos.Y();
971 xm[2] = (Float_t)pos.Z();
973 pm[0] = (Float_t)mom.X()*normMom;
974 pm[1] = (Float_t)mom.Y()*normMom;
975 pm[2] = (Float_t)mom.Z()*normMom;
977 gMC->Gmtod(xm,xpad,1);
978 gMC->Gmtod(pm,ppad,2);
981 if (TMath::Abs(ppad[1])>1) {
982 AliWarning("Abs(ppad) > 1");
983 ppad[1]=TMath::Sign((Float_t)1,ppad[1]);
985 incidenceAngle = TMath::ACos(ppad[1])*kRaddeg;
992 if (TMath::Abs(z) <= AliTOFGeometry::ZlenA()*0.5) plate = 2;
993 if (z < (AliTOFGeometry::ZlenA()*0.5+AliTOFGeometry::ZlenB()) &&
994 z > AliTOFGeometry::ZlenA()*0.5) plate = 1;
995 if (z >-(AliTOFGeometry::ZlenA()*0.5+AliTOFGeometry::ZlenB()) &&
996 z < -AliTOFGeometry::ZlenA()*0.5) plate = 3;
997 if (z > (AliTOFGeometry::ZlenA()*0.5+AliTOFGeometry::ZlenB())) plate = 0;
998 if (z <-(AliTOFGeometry::ZlenA()*0.5+AliTOFGeometry::ZlenB())) plate = 4;
1001 if (plate==0) strip=fTOFGeometry->NStripC()-strip;
1002 else if (plate==1) strip=fTOFGeometry->NStripB()-strip;
1005 //Apply ALICE conventions for volume numbering increasing with theta, phi
1007 if (plate==3 || plate==4){
1008 padx=fTOFGeometry->NpadX()-padx;
1009 padz=fTOFGeometry->NpadZ()-padz;
1021 if (phi>=0.) phid = phi*kRaddeg;
1022 else phid = phi*kRaddeg + 360.;
1024 sector = Int_t (phid/20.);
1031 hits[6] = mom.Rho();
1036 hits[11]= incidenceAngle;
1037 hits[12]= gMC->Edep();
1038 hits[13]= gMC->TrackLength();
1046 AddT0Hit(gAlice->GetMCApp()->GetCurrentTrackNumber(),vol, hits);