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 0 of the Time Of Flight //
23 // VERSION WITH 5 MODULES AND TILTED STRIPS //
24 // NO HITS DEFINED BY DEFAULT FOR THIS VERSION //
25 // FULL COVERAGE VERSION //
30 // Domenico Vicinanza //
32 // University of Salerno - Italy //
34 // Fabrizio Pierella //
35 // University of Bologna - Italy //
40 <img src="picts/AliTOFv0Class.gif"> //
44 ///////////////////////////////////////////////////////////////////////////////
46 #include <Riostream.h>
50 #include <TGeometry.h>
51 #include <TLorentzVector.h>
54 #include <TVirtualMC.h>
59 #include "AliTOFConstants.h" // AdC
63 //_____________________________________________________________________________
67 // Default constructor
71 //_____________________________________________________________________________
72 AliTOFv0::AliTOFv0(const char *name, const char *title)
76 // Standard constructor
79 // Check that FRAME is there otherwise we have no place where to
81 AliModule* frame=gAlice->GetModule("FRAME");
83 Error("Ctor","TOF needs FRAME to be present\n");
86 if(frame->IsVersion()!=1) {
87 Error("Ctor","FRAME version 1 needed with this version of TOF\n");
93 //____________________________________________________________________________
95 void AliTOFv0::BuildGeometry()
98 // Build TOF ROOT geometry for the ALICE event display
101 const int kColorTOF = 27;
104 top = gAlice->GetGeometry()->GetNode("alice");
106 // Position the different copies
107 const Float_t krTof =(fRmax+fRmin)/2;
108 const Float_t khTof = fRmax-fRmin;
109 const Int_t kNTof = fNTof;
110 const Float_t kPi = TMath::Pi();
111 const Float_t kangle = 2*kPi/kNTof;
114 // define offset for nodes
115 Float_t zOffsetC = fZtof - fZlenC*0.5;
116 Float_t zOffsetB = fZtof - fZlenC - fZlenB*0.5;
117 Float_t zOffsetA = 0.;
118 // Define TOF basic volume
120 char nodeName0[7], nodeName1[7], nodeName2[7];
121 char nodeName3[7], nodeName4[7], rotMatNum[7];
123 new TBRIK("S_TOF_C","TOF box","void",
124 fStripLn*0.5,khTof*0.5,fZlenC*0.5);
125 new TBRIK("S_TOF_B","TOF box","void",
126 fStripLn*0.5,khTof*0.5,fZlenB*0.5);
127 new TBRIK("S_TOF_A","TOF box","void",
128 fStripLn*0.5,khTof*0.5,fZlenA*0.5);
130 for (Int_t nodeNum=1;nodeNum<19;nodeNum++){
133 sprintf(rotMatNum,"rot50%i",nodeNum);
134 sprintf(nodeName0,"FTO00%i",nodeNum);
135 sprintf(nodeName1,"FTO10%i",nodeNum);
136 sprintf(nodeName2,"FTO20%i",nodeNum);
137 sprintf(nodeName3,"FTO30%i",nodeNum);
138 sprintf(nodeName4,"FTO40%i",nodeNum);
141 sprintf(rotMatNum,"rot5%i",nodeNum);
142 sprintf(nodeName0,"FTO0%i",nodeNum);
143 sprintf(nodeName1,"FTO1%i",nodeNum);
144 sprintf(nodeName2,"FTO2%i",nodeNum);
145 sprintf(nodeName3,"FTO3%i",nodeNum);
146 sprintf(nodeName4,"FTO4%i",nodeNum);
149 new TRotMatrix(rotMatNum,rotMatNum,90,-20*nodeNum,90,90-20*nodeNum,0,0);
150 ang = (4.5-nodeNum) * kangle;
153 node = new TNode(nodeName0,nodeName0,"S_TOF_C",krTof*TMath::Cos(ang),krTof*TMath::Sin(ang),zOffsetC,rotMatNum);
154 node->SetLineColor(kColorTOF);
158 node = new TNode(nodeName1,nodeName1,"S_TOF_C",krTof*TMath::Cos(ang),krTof*TMath::Sin(ang),-zOffsetC,rotMatNum);
159 node->SetLineColor(kColorTOF);
163 node = new TNode(nodeName2,nodeName2,"S_TOF_B",krTof*TMath::Cos(ang),krTof*TMath::Sin(ang),zOffsetB,rotMatNum);
164 node->SetLineColor(kColorTOF);
168 node = new TNode(nodeName3,nodeName3,"S_TOF_B",krTof*TMath::Cos(ang),krTof*TMath::Sin(ang),-zOffsetB,rotMatNum);
169 node->SetLineColor(kColorTOF);
173 node = new TNode(nodeName4,nodeName4,"S_TOF_A",krTof*TMath::Cos(ang),krTof*TMath::Sin(ang),zOffsetA,rotMatNum);
174 node->SetLineColor(kColorTOF);
176 } // end loop on nodeNum
181 //_____________________________________________________________________________
182 void AliTOFv0::CreateGeometry()
185 // Create geometry for Time Of Flight version 0
189 <img src="picts/AliTOFv0.gif">
193 // Creates common geometry
195 AliTOF::CreateGeometry();
198 //_____________________________________________________________________________
199 void AliTOFv0::TOFpc(Float_t xtof, Float_t ytof, Float_t zlenC,
200 Float_t zlenB, Float_t zlenA, Float_t ztof0)
203 // Definition of the Time Of Fligh Resistive Plate Chambers
204 // xFLT, yFLT, zFLT - sizes of TOF modules (large)
206 Float_t ycoor, zcoor;
208 Int_t *idtmed = fIdtmed->GetArray()-499;
211 Float_t hTof = fRmax-fRmin;
213 Float_t radius = fRmin+2.;//cm
217 par[2] = zlenC * 0.5;
218 gMC->Gsvolu("FTOC", "BOX ", idtmed[506], par, 3);
219 par[2] = zlenB * 0.5;
220 gMC->Gsvolu("FTOB", "BOX ", idtmed[506], par, 3);
221 par[2] = zlenA * 0.5;
222 gMC->Gsvolu("FTOA", "BOX ", idtmed[506], par, 3);
225 // Positioning of modules
227 Float_t zcor1 = ztof0 - zlenC*0.5;
228 Float_t zcor2 = ztof0 - zlenC - zlenB*0.5;
231 AliMatrix(idrotm[0], 90., 0., 0., 0., 90,-90.);
232 AliMatrix(idrotm[1], 90.,180., 0., 0., 90, 90.);
233 gMC->Gspos("FTOC", 1, "BTO1", 0, zcor1, 0, idrotm[0], "ONLY");
234 gMC->Gspos("FTOC", 2, "BTO1", 0, -zcor1, 0, idrotm[1], "ONLY");
235 gMC->Gspos("FTOC", 1, "BTO2", 0, zcor1, 0, idrotm[0], "ONLY");
236 gMC->Gspos("FTOC", 2, "BTO2", 0, -zcor1, 0, idrotm[1], "ONLY");
237 gMC->Gspos("FTOC", 1, "BTO3", 0, zcor1, 0, idrotm[0], "ONLY");
238 gMC->Gspos("FTOC", 2, "BTO3", 0, -zcor1, 0, idrotm[1], "ONLY");
240 gMC->Gspos("FTOB", 1, "BTO1", 0, zcor2, 0, idrotm[0], "ONLY");
241 gMC->Gspos("FTOB", 2, "BTO1", 0, -zcor2, 0, idrotm[1], "ONLY");
242 gMC->Gspos("FTOB", 1, "BTO2", 0, zcor2, 0, idrotm[0], "ONLY");
243 gMC->Gspos("FTOB", 2, "BTO2", 0, -zcor2, 0, idrotm[1], "ONLY");
244 gMC->Gspos("FTOB", 1, "BTO3", 0, zcor2, 0, idrotm[0], "ONLY");
245 gMC->Gspos("FTOB", 2, "BTO3", 0, -zcor2, 0, idrotm[1], "ONLY");
247 gMC->Gspos("FTOA", 0, "BTO1", 0, zcor3, 0, idrotm[0], "ONLY");
248 gMC->Gspos("FTOA", 0, "BTO2", 0, zcor3, 0, idrotm[0], "ONLY");
249 gMC->Gspos("FTOA", 0, "BTO3", 0, zcor3, 0, idrotm[0], "ONLY");
251 Float_t db = 0.5;//cm
252 Float_t xFLT, xFST, yFLT, zFLTA, zFLTB, zFLTC;
260 xFST = xFLT-fDeadBndX*2;//cm
262 // Sizes of MRPC pads
264 Float_t yPad = 0.505;//cm
266 // Large not sensitive volumes with Insensitive Freon
270 cout <<"************************* TOF geometry **************************"<<endl;
272 par[2] = (zFLTA *0.5);
273 gMC->Gsvolu("FLTA", "BOX ", idtmed[512], par, 3); // Insensitive Freon
274 gMC->Gspos ("FLTA", 0, "FTOA", 0., 0., 0., 0, "ONLY");
276 par[2] = (zFLTB * 0.5);
277 gMC->Gsvolu("FLTB", "BOX ", idtmed[512], par, 3); // Insensitive Freon
278 gMC->Gspos ("FLTB", 0, "FTOB", 0., 0., 0., 0, "ONLY");
280 par[2] = (zFLTC * 0.5);
281 gMC->Gsvolu("FLTC", "BOX ", idtmed[512], par, 3); // Insensitive Freon
282 gMC->Gspos ("FLTC", 0, "FTOC", 0., 0., 0., 0, "ONLY");
284 ////////// Layers of Aluminum before and after detector //////////
285 ////////// Aluminum Box for Modules (2.0 mm thickness) /////////
286 ////////// lateral walls not simulated
289 ycoor = -yFLT/2 + par[1];
290 par[2] = (zFLTA *0.5);
291 gMC->Gsvolu("FALA", "BOX ", idtmed[508], par, 3); // Alluminium
292 gMC->Gspos ("FALA", 1, "FLTA", 0., ycoor, 0., 0, "ONLY");
293 gMC->Gspos ("FALA", 2, "FLTA", 0.,-ycoor, 0., 0, "ONLY");
294 par[2] = (zFLTB *0.5);
295 gMC->Gsvolu("FALB", "BOX ", idtmed[508], par, 3); // Alluminium
296 gMC->Gspos ("FALB", 1, "FLTB", 0., ycoor, 0., 0, "ONLY");
297 gMC->Gspos ("FALB", 2, "FLTB", 0.,-ycoor, 0., 0, "ONLY");
298 par[2] = (zFLTC *0.5);
299 gMC->Gsvolu("FALC", "BOX ", idtmed[508], par, 3); // Alluminium
300 gMC->Gspos ("FALC", 1, "FLTC", 0., ycoor, 0., 0, "ONLY");
301 gMC->Gspos ("FALC", 2, "FLTC", 0.,-ycoor, 0., 0, "ONLY");
303 ///////////////// Detector itself //////////////////////
304 const Float_t kdeadBound = fDeadBndZ; //cm non-sensitive between the pad edge
305 //and the boundary of the strip
306 const Int_t knx = fNpadX; // number of pads along x
307 const Int_t knz = fNpadZ; // number of pads along z
308 const Float_t kspace = fSpace; //cm distance from the front plate of the box
310 Float_t zSenStrip = fZpad*fNpadZ;//cm
311 Float_t stripWidth = zSenStrip + 2*kdeadBound;
314 par[2] = stripWidth*0.5;
316 // new description for strip volume -double stack strip-
317 // -- all constants are expressed in cm
318 // heigth of different layers
319 const Float_t khhony = 1. ; // heigth of HONY Layer
320 const Float_t khpcby = 0.15 ; // heigth of PCB Layer
321 const Float_t khmyly = 0.035 ; // heigth of MYLAR Layer
322 const Float_t khgraphy = 0.02 ; // heigth of GRAPHITE Layer
323 const Float_t khglasseiy = 0.17; // 0.6 Ext. Glass + 1.1 i.e. (Int. Glass/2) (mm)
324 const Float_t khsensmy = 0.11 ; // heigth of Sensitive Freon Mixture
325 const Float_t kwsensmz = 2*3.5 ; // cm
326 const Float_t klsensmx = 48*2.5; // cm
327 const Float_t kwpadz = 3.5; // cm z dimension of the FPAD volume
328 const Float_t klpadx = 2.5; // cm x dimension of the FPAD volume
330 // heigth of the FSTR Volume (the strip volume)
331 const Float_t khstripy = 2*khhony+3*khpcby+4*(khmyly+khgraphy+khglasseiy)+2*khsensmy;
332 // width of the FSTR Volume (the strip volume)
333 const Float_t kwstripz = 10.;
334 // length of the FSTR Volume (the strip volume)
335 const Float_t klstripx = 122.;
337 Float_t parfp[3]={klstripx*0.5,khstripy*0.5,kwstripz*0.5};
338 // coordinates of the strip center in the strip reference frame; used for positioning
339 // internal strip volumes
340 Float_t posfp[3]={0.,0.,0.};
343 // FSTR volume definition and filling this volume with non sensitive Gas Mixture
344 gMC->Gsvolu("FSTR","BOX",idtmed[512],parfp,3);
345 //-- HONY Layer definition
347 parfp[1] = khhony*0.5;
349 gMC->Gsvolu("FHON","BOX",idtmed[503],parfp,3);
350 // positioning 2 HONY Layers on FSTR volume
352 posfp[1]=-khstripy*0.5+parfp[1];
353 gMC->Gspos("FHON",1,"FSTR",0., posfp[1],0.,0,"ONLY");
354 gMC->Gspos("FHON",2,"FSTR",0.,-posfp[1],0.,0,"ONLY");
356 //-- PCB Layer definition
357 parfp[1] = khpcby*0.5;
358 gMC->Gsvolu("FPCB","BOX",idtmed[504],parfp,3);
359 // positioning 2 PCB Layers on FSTR volume
360 posfp[1]=-khstripy*0.5+khhony+parfp[1];
361 gMC->Gspos("FPCB",1,"FSTR",0., posfp[1],0.,0,"ONLY");
362 gMC->Gspos("FPCB",2,"FSTR",0.,-posfp[1],0.,0,"ONLY");
363 // positioning the central PCB layer
364 gMC->Gspos("FPCB",3,"FSTR",0.,0.,0.,0,"ONLY");
368 //-- MYLAR Layer definition
369 parfp[1] = khmyly*0.5;
370 gMC->Gsvolu("FMYL","BOX",idtmed[511],parfp,3);
371 // positioning 2 MYLAR Layers on FSTR volume
372 posfp[1] = -khstripy*0.5+khhony+khpcby+parfp[1];
373 gMC->Gspos("FMYL",1,"FSTR",0., posfp[1],0.,0,"ONLY");
374 gMC->Gspos("FMYL",2,"FSTR",0.,-posfp[1],0.,0,"ONLY");
375 // adding further 2 MYLAR Layers on FSTR volume
376 posfp[1] = khpcby*0.5+parfp[1];
377 gMC->Gspos("FMYL",3,"FSTR",0., posfp[1],0.,0,"ONLY");
378 gMC->Gspos("FMYL",4,"FSTR",0.,-posfp[1],0.,0,"ONLY");
381 //-- Graphite Layer definition
382 parfp[1] = khgraphy*0.5;
383 gMC->Gsvolu("FGRP","BOX",idtmed[502],parfp,3);
384 // positioning 2 Graphite Layers on FSTR volume
385 posfp[1] = -khstripy*0.5+khhony+khpcby+khmyly+parfp[1];
386 gMC->Gspos("FGRP",1,"FSTR",0., posfp[1],0.,0,"ONLY");
387 gMC->Gspos("FGRP",2,"FSTR",0.,-posfp[1],0.,0,"ONLY");
388 // adding further 2 Graphite Layers on FSTR volume
389 posfp[1] = khpcby*0.5+khmyly+parfp[1];
390 gMC->Gspos("FGRP",3,"FSTR",0., posfp[1],0.,0,"ONLY");
391 gMC->Gspos("FGRP",4,"FSTR",0.,-posfp[1],0.,0,"ONLY");
394 //-- Glass (EXT. +Semi INT.) Layer definition
395 parfp[1] = khglasseiy*0.5;
396 gMC->Gsvolu("FGLA","BOX",idtmed[514],parfp,3);
397 // positioning 2 Glass Layers on FSTR volume
398 posfp[1] = -khstripy*0.5+khhony+khpcby+khmyly+khgraphy+parfp[1];
399 gMC->Gspos("FGLA",1,"FSTR",0., posfp[1],0.,0,"ONLY");
400 gMC->Gspos("FGLA",2,"FSTR",0.,-posfp[1],0.,0,"ONLY");
401 // adding further 2 Glass Layers on FSTR volume
402 posfp[1] = khpcby*0.5+khmyly+khgraphy+parfp[1];
403 gMC->Gspos("FGLA",3,"FSTR",0., posfp[1],0.,0,"ONLY");
404 gMC->Gspos("FGLA",4,"FSTR",0.,-posfp[1],0.,0,"ONLY");
407 //-- Sensitive Mixture Layer definition
408 parfp[0] = klsensmx*0.5;
409 parfp[1] = khsensmy*0.5;
410 parfp[2] = kwsensmz*0.5;
411 gMC->Gsvolu("FSEN","BOX",idtmed[513],parfp,3);
412 gMC->Gsvolu("FNSE","BOX",idtmed[512],parfp,3);
413 // positioning 2 gas Layers on FSTR volume
414 // the upper is insensitive freon
415 // while the remaining is sensitive
416 posfp[1] = khpcby*0.5+khmyly+khgraphy+khglasseiy+parfp[1];
417 gMC->Gspos("FNSE",0,"FSTR", 0., posfp[1],0.,0,"ONLY");
418 gMC->Gspos("FSEN",0,"FSTR", 0.,-posfp[1],0.,0,"ONLY");
420 // dividing FSEN along z in knz=2 and along x in knx=48
421 gMC->Gsdvn("FSEZ","FSEN",knz,3);
422 gMC->Gsdvn("FSEX","FSEZ",knx,1);
424 // FPAD volume definition
425 parfp[0] = klpadx*0.5;
426 parfp[1] = khsensmy*0.5;
427 parfp[2] = kwpadz*0.5;
428 gMC->Gsvolu("FPAD","BOX",idtmed[513],parfp,3);
429 // positioning the FPAD volumes on previous divisions
430 gMC->Gspos("FPAD",0,"FSEX",0.,0.,0.,0,"ONLY");
432 //// Positioning the Strips (FSTR) in the FLT volumes /////
436 Float_t t = zFLTC+zFLTB+zFLTA*0.5+ 2*db;//Half Width of Barrel
438 Float_t gap = fGapA+0.5; //cm updated distance between the strip axis
444 ycoor = -14.5 + kspace ; //2 cm over front plate
446 AliMatrix (idrotm[0], 90., 0.,90.,90.,0., 90.);
448 Int_t centerLoc= (Int_t)(fNStripA/2.) + 1; // AdC
450 //gMC->Gspos("FSTR",j,"FLTA",0.,ycoor, 0.,idrotm[0],"ONLY");
451 gMC->Gspos("FSTR",centerLoc,"FLTA",0.,ycoor, 0.,idrotm[0],"ONLY"); // AdC
453 printf("%s: %f, St. %2i, Pl.3 ",ClassName(),ang*kRaddeg,j); // AdC
454 printf("y = %f, z = %f, zpos = %f \n",ycoor,zcoor,zpos);
458 Int_t upDown = -1; // upDown=-1 -> Upper strip
459 // upDown=+1 -> Lower strip
461 ang = atan(zcoor/radius);
463 AliMatrix (idrotm[nrot], 90., 0.,90.-ang,90.,-ang, 90.);
464 AliMatrix (idrotm[nrot+1],90.,180.,90.+ang,90., ang, 90.);
466 ycoor = -14.5+ kspace; //2 cm over front plate
467 ycoor += (1-(upDown+1)/2)*gap;
468 //gMC->Gspos("FSTR",j ,"FLTA",0.,ycoor, zcoor,idrotm[nrot], "ONLY");
469 //gMC->Gspos("FSTR",j+1,"FLTA",0.,ycoor,-zcoor,idrotm[nrot+1],"ONLY");
470 gMC->Gspos("FSTR",centerLoc-j,"FLTA",0.,ycoor, zcoor,idrotm[nrot], "ONLY"); // AdC
471 gMC->Gspos("FSTR",centerLoc+j,"FLTA",0.,ycoor,-zcoor,idrotm[nrot+1],"ONLY"); // AdC
473 printf("%s: %f, St. %2i, Pl.3 ",ClassName(),ang*kRaddeg,j); // AdC
474 printf("y = %f, z = %f, zpos = %f \n",ycoor,zcoor,zpos);
477 upDown*= -1; // Alternate strips
478 zcoor = zcoor-(zSenStrip/2)/TMath::Cos(ang)-
479 upDown*gap*TMath::Tan(ang)-
480 (zSenStrip/2)/TMath::Cos(ang);
481 } while (zcoor-(stripWidth/2)*TMath::Cos(ang)>-t+zFLTC+zFLTB+db*2);
483 zcoor = zcoor+(zSenStrip/2)/TMath::Cos(ang)+
484 upDown*gap*TMath::Tan(ang)+
485 (zSenStrip/2)/TMath::Cos(ang);
488 zcoor = zcoor-(zSenStrip/2)/TMath::Cos(ang)-
489 upDown*gap*TMath::Tan(ang)-
490 (zSenStrip/2)/TMath::Cos(ang);
492 ang = atan(zcoor/radius);
494 AliMatrix (idrotm[nrot], 90., 0.,90.-ang,90.,-ang, 90.);
495 AliMatrix (idrotm[nrot+1],90.,180.,90.+ang,90., ang, 90.);
498 ycoor = -14.5+ kspace; //2 cm over front plate
499 ycoor += (1-(upDown+1)/2)*gap;
500 //gMC->Gspos("FSTR",j ,"FLTA",0.,ycoor, zcoor,idrotm[nrot], "ONLY");
501 //gMC->Gspos("FSTR",j+1,"FLTA",0.,ycoor,-zcoor,idrotm[nrot+1],"ONLY");
502 gMC->Gspos("FSTR",centerLoc-j,"FLTA",0.,ycoor, zcoor,idrotm[nrot], "ONLY"); // AdC
503 gMC->Gspos("FSTR",centerLoc+j,"FLTA",0.,ycoor,-zcoor,idrotm[nrot+1],"ONLY"); // AdC
505 printf("%s: %f, St. %2i, Pl.3 ",ClassName(),ang*kRaddeg,j); // AdC
506 printf("y = %f, z = %f, zpos = %f \n",ycoor,zcoor,zpos);
508 ycoor = -hTof/2.+ kspace;//2 cm over front plate
515 Float_t deadRegion = 1.0;//cm
517 zpos = zcoor - (zSenStrip/2)/TMath::Cos(ang)-
518 upDown*gap*TMath::Tan(ang)-
519 (zSenStrip/2)/TMath::Cos(ang)-
520 deadRegion/TMath::Cos(ang);
522 ang = atan(zpos/radius);
524 AliMatrix (idrotm[nrot], 90., 0., 90.-ang,90.,ang, 270.);
526 ycoor = -hTof*0.5+ kspace ; //2 cm over front plate
527 ycoor += (1-(upDown+1)/2)*gap;
528 zcoor = zpos+(zFLTA*0.5+zFLTB*0.5+db); // Moves to the system of the modulus FLTB
529 gMC->Gspos("FSTR",i, "FLTB", 0., ycoor, zcoor,idrotm[nrot], "ONLY");
531 printf("%s: %f, St. %2i, Pl.4 ",ClassName(),ang*kRaddeg,i);
532 printf("y = %f, z = %f, zpos = %f \n",ycoor,zcoor,zpos);
538 zpos = zpos - (zSenStrip/2)/TMath::Cos(ang)-
539 upDown*gap*TMath::Tan(ang)-
540 (zSenStrip/2)/TMath::Cos(ang);
541 ang = atan(zpos/radius);
543 AliMatrix (idrotm[nrot], 90., 0., 90.-ang,90.,ang, 270.);
545 Float_t deltaSpaceinB=-0.5; // [cm] to avoid overlaps with the end of freon frame
546 Float_t deltaGapinB=0.5; // [cm] to avoid overlaps in between initial strips
547 ycoor = -hTof*0.5+ kspace+deltaSpaceinB ; //2 cm over front plate
548 ycoor += (1-(upDown+1)/2)*(gap+deltaGapinB);
549 zcoor = zpos+(zFLTA*0.5+zFLTB*0.5+db); // Moves to the system of the modulus FLTB
550 gMC->Gspos("FSTR",i, "FLTB", 0., ycoor, zcoor,idrotm[nrot], "ONLY");
552 printf("%s: %f, St. %2i, Pl.4 ",ClassName(),ang*kRaddeg,i);
553 printf("y = %f, z = %f, zpos = %f \n",ycoor,zcoor,zpos);
557 } while (TMath::Abs(ang*kRaddeg)<22.5);
558 //till we reach a tilting angle of 22.5 degrees
560 ycoor = -hTof*0.5+ kspace ; //2 cm over front plate
561 zpos = zpos - zSenStrip/TMath::Cos(ang);
562 // this avoid overlaps in between outer strips in plate B
563 Float_t deltaMovingUp=0.8; // [cm]
564 Float_t deltaMovingDown=-0.5; // [cm]
567 ang = atan(zpos/radius);
569 AliMatrix (idrotm[nrot], 90., 0., 90.-ang,90.,ang, 270.);
571 zcoor = zpos+(zFLTB/2+zFLTA/2+db);
572 gMC->Gspos("FSTR",i, "FLTB", 0., ycoor+deltaMovingDown+deltaMovingUp, zcoor,idrotm[nrot], "ONLY");
573 deltaMovingUp+=0.8; // update delta moving toward the end of the plate
574 zpos = zpos - zSenStrip/TMath::Cos(ang);
576 printf("%s: %f, St. %2i, Pl.4 ",ClassName(),ang*kRaddeg,i);
577 printf("y = %f, z = %f, zpos = %f \n",ycoor,zcoor,zpos);
580 } while (zpos-stripWidth*0.5/TMath::Cos(ang)>-t+zFLTC+db);
584 zpos = zpos + zSenStrip/TMath::Cos(ang);
586 zpos = zpos - (zSenStrip/2)/TMath::Cos(ang)+
588 (zSenStrip/2)/TMath::Cos(ang);
592 Float_t deltaGap=-2.5; // [cm] update distance from strip center and plate
593 ycoor= -hTof*0.5+kspace+gap+deltaGap;
597 ang = atan(zpos/radius);
599 AliMatrix (idrotm[nrot], 90., 0., 90.-ang,90.,ang, 270.);
601 zcoor = zpos+(zFLTC*0.5+zFLTB+zFLTA*0.5+db*2);
602 gMC->Gspos("FSTR",i, "FLTC", 0., ycoor, zcoor,idrotm[nrot], "ONLY");
604 printf("%s: %f, St. %2i, Pl.5 ",ClassName(),ang*kRaddeg,i);
605 printf("y = %f, z = %f, zpos = %f \n",ycoor,zcoor,zpos);
607 zpos = zpos - zSenStrip/TMath::Cos(ang);
608 } while (zpos-stripWidth*TMath::Cos(ang)*0.5>-t);
611 ////////// Layers after strips /////////////////
612 // honeycomb (Polyethilene) Layer after (1.2cm)
614 Float_t overSpace = fOverSpc;//cm
618 par[2] = (zFLTA *0.5);
619 ycoor = -yFLT/2 + overSpace + par[1];
620 gMC->Gsvolu("FPEA", "BOX ", idtmed[503], par, 3); // Hony
621 gMC->Gspos ("FPEA", 0, "FLTA", 0., ycoor, 0., 0, "ONLY");
622 par[2] = (zFLTB *0.5);
623 gMC->Gsvolu("FPEB", "BOX ", idtmed[503], par, 3); // Hony
624 gMC->Gspos ("FPEB", 0, "FLTB", 0., ycoor, 0., 0, "ONLY");
625 par[2] = (zFLTC *0.5);
626 gMC->Gsvolu("FPEC", "BOX ", idtmed[503], par, 3); // Hony
627 gMC->Gspos ("FPEC", 0, "FLTC", 0., ycoor, 0., 0, "ONLY");
629 // Electronics (Cu) after
632 par[1] = 1.43*0.05*0.5; // 5% of X0
633 par[2] = (zFLTA *0.5);
635 gMC->Gsvolu("FECA", "BOX ", idtmed[501], par, 3); // Cu
636 gMC->Gspos ("FECA", 0, "FLTA", 0., ycoor, 0., 0, "ONLY");
637 par[2] = (zFLTB *0.5);
638 gMC->Gsvolu("FECB", "BOX ", idtmed[501], par, 3); // Cu
639 gMC->Gspos ("FECB", 0, "FLTB", 0., ycoor, 0., 0, "ONLY");
640 par[2] = (zFLTC *0.5);
641 gMC->Gsvolu("FECC", "BOX ", idtmed[501], par, 3); // Cu
642 gMC->Gspos ("FECC", 0, "FLTC", 0., ycoor, 0., 0, "ONLY");
644 // cooling WAter after
647 par[1] = 36.1*0.02*0.5; // 2% of X0
648 par[2] = (zFLTA *0.5);
650 gMC->Gsvolu("FWAA", "BOX ", idtmed[515], par, 3); // Water
651 gMC->Gspos ("FWAA", 0, "FLTA", 0., ycoor, 0., 0, "ONLY");
652 par[2] = (zFLTB *0.5);
653 gMC->Gsvolu("FWAB", "BOX ", idtmed[515], par, 3); // Water
654 gMC->Gspos ("FWAB", 0, "FLTB", 0., ycoor, 0., 0, "ONLY");
655 par[2] = (zFLTC *0.5);
656 gMC->Gsvolu("FWAC", "BOX ", idtmed[515], par, 3); // Water
657 gMC->Gspos ("FWAC", 0, "FLTC", 0., ycoor, 0., 0, "ONLY");
662 par[1] = (yFLT/2-ycoor-0.2)*0.5; // Aluminum layer considered (0.2 cm)
663 par[2] = (zFLTA *0.5);
665 gMC->Gsvolu("FAIA", "BOX ", idtmed[500], par, 3); // Air
666 gMC->Gspos ("FAIA", 0, "FLTA", 0., ycoor, 0., 0, "ONLY");
667 par[2] = (zFLTB *0.5);
668 gMC->Gsvolu("FAIB", "BOX ", idtmed[500], par, 3); // Air
669 gMC->Gspos ("FAIB", 0, "FLTB", 0., ycoor, 0., 0, "ONLY");
670 par[2] = (zFLTC *0.5);
671 gMC->Gsvolu("FAIC", "BOX ", idtmed[500], par, 3); // Air
672 gMC->Gspos ("FAIC", 0, "FLTC", 0., ycoor, 0., 0, "ONLY");
674 //Back Plate honycomb (2cm)
678 ycoor = yFLT/2 - par[1];
679 gMC->Gsvolu("FBPA", "BOX ", idtmed[503], par, 3); // Hony
680 gMC->Gspos ("FBPA", 0, "FLTA", 0., ycoor, 0., 0, "ONLY");
681 gMC->Gsvolu("FBPB", "BOX ", idtmed[503], par, 3); // Hony
682 gMC->Gspos ("FBPB", 0, "FLTB", 0., ycoor, 0., 0, "ONLY");
683 gMC->Gsvolu("FBPC", "BOX ", idtmed[503], par, 3); // Hony
684 gMC->Gspos ("FBPC", 0, "FLTC", 0., ycoor, 0., 0, "ONLY");
688 //_____________________________________________________________________________
689 void AliTOFv0::DrawModule() const
692 // Draw a shaded view of the Time Of Flight version 0
694 // Set everything unseen
695 gMC->Gsatt("*", "seen", -1);
697 // Set ALIC mother transparent
698 gMC->Gsatt("ALIC","SEEN",0);
700 // Set the volumes visible
701 gMC->Gsatt("ALIC","SEEN",0);
703 gMC->Gsatt("FTOA","SEEN",1);
704 gMC->Gsatt("FTOB","SEEN",1);
705 gMC->Gsatt("FTOC","SEEN",1);
706 gMC->Gsatt("FLTA","SEEN",1);
707 gMC->Gsatt("FLTB","SEEN",1);
708 gMC->Gsatt("FLTC","SEEN",1);
709 gMC->Gsatt("FPLA","SEEN",1);
710 gMC->Gsatt("FPLB","SEEN",1);
711 gMC->Gsatt("FPLC","SEEN",1);
712 gMC->Gsatt("FSTR","SEEN",1);
713 gMC->Gsatt("FPEA","SEEN",1);
714 gMC->Gsatt("FPEB","SEEN",1);
715 gMC->Gsatt("FPEC","SEEN",1);
717 gMC->Gsatt("FLZ1","SEEN",0);
718 gMC->Gsatt("FLZ2","SEEN",0);
719 gMC->Gsatt("FLZ3","SEEN",0);
720 gMC->Gsatt("FLX1","SEEN",0);
721 gMC->Gsatt("FLX2","SEEN",0);
722 gMC->Gsatt("FLX3","SEEN",0);
723 gMC->Gsatt("FPAD","SEEN",0);
725 gMC->Gdopt("hide", "on");
726 gMC->Gdopt("shad", "on");
727 gMC->Gsatt("*", "fill", 7);
728 gMC->SetClipBox(".");
729 gMC->SetClipBox("*", 0, 1000, -1000, 1000, -1000, 1000);
731 gMC->Gdraw("alic", 40, 30, 0, 12, 9.5, .02, .02);
732 gMC->Gdhead(1111, "Time Of Flight");
733 gMC->Gdman(18, 4, "MAN");
734 gMC->Gdopt("hide","off");
736 //_____________________________________________________________________________
737 void AliTOFv0::DrawDetectorModules()
740 // Draw a shaded view of the TOF detector version 0
743 //Set ALIC mother transparent
744 gMC->Gsatt("ALIC","SEEN",0);
747 //Set volumes visible
750 // Level 1 for TOF volumes
751 gMC->Gsatt("B077","seen",0);
754 //==========> Level 2
756 gMC->Gsatt("B076","seen",-1); // all B076 sub-levels skipped -
757 gMC->Gsatt("B071","seen",0);
758 gMC->Gsatt("B074","seen",0);
759 gMC->Gsatt("B075","seen",0);
760 gMC->Gsatt("B080","seen",0); // B080 does not has sub-level
764 gMC->Gsatt("B063","seen",-1); // all B063 sub-levels skipped -
765 gMC->Gsatt("B065","seen",-1); // all B065 sub-levels skipped -
766 gMC->Gsatt("B067","seen",-1); // all B067 sub-levels skipped -
767 gMC->Gsatt("B069","seen",-1); // all B069 sub-levels skipped -
768 gMC->Gsatt("B056","seen",0); // B056 does not has sub-levels -
769 gMC->Gsatt("B059","seen",-1); // all B059 sub-levels skipped -
770 gMC->Gsatt("B072","seen",-1); // all B072 sub-levels skipped -
771 gMC->Gsatt("BTR1","seen",0); // BTR1 do not have sub-levels -
772 gMC->Gsatt("BTO1","seen",0);
776 gMC->Gsatt("BTR2","seen",0); // BTR2 does not has sub-levels -
777 gMC->Gsatt("BTO2","seen",0);
780 gMC->Gsatt("BTR3","seen",0); // BTR3 do not have sub-levels -
781 gMC->Gsatt("BTO3","seen",0);
783 // ==================> Level 3
784 // Level 3 of B071 / Level 2 of BTO1
785 gMC->Gsatt("FTOC","seen",-2);
786 gMC->Gsatt("FTOB","seen",-2);
787 gMC->Gsatt("FTOA","seen",-2);
789 // Level 3 of B074 / Level 2 of BTO2
790 // -> cfr previous settings
792 // Level 3 of B075 / Level 2 of BTO3
793 // -> cfr previous settings
795 gMC->Gdopt("hide","on");
796 gMC->Gdopt("shad","on");
797 gMC->Gsatt("*", "fill", 5);
798 gMC->SetClipBox(".");
799 gMC->SetClipBox("*", 0, 1000, 0, 1000, 0, 1000);
801 gMC->Gdraw("alic", 45, 40, 0, 10, 10, .015, .015);
802 gMC->Gdhead(1111,"TOF detector V1");
803 gMC->Gdman(18, 4, "MAN");
804 gMC->Gdopt("hide","off");
807 //_____________________________________________________________________________
808 void AliTOFv0::DrawDetectorStrips()
811 // Draw a shaded view of the TOF strips for version 0
814 //Set ALIC mother transparent
815 gMC->Gsatt("ALIC","SEEN",0);
818 //Set volumes visible
820 // Level 1 for TOF volumes
821 gMC->Gsatt("B077","seen",0);
823 //==========> Level 2
825 gMC->Gsatt("B076","seen",-1); // all B076 sub-levels skipped -
826 gMC->Gsatt("B071","seen",0);
827 gMC->Gsatt("B074","seen",0);
828 gMC->Gsatt("B075","seen",0);
829 gMC->Gsatt("B080","seen",0); // B080 does not has sub-level
832 gMC->Gsatt("B063","seen",-1); // all B063 sub-levels skipped -
833 gMC->Gsatt("B065","seen",-1); // all B065 sub-levels skipped -
834 gMC->Gsatt("B067","seen",-1); // all B067 sub-levels skipped -
835 gMC->Gsatt("B069","seen",-1); // all B069 sub-levels skipped -
836 gMC->Gsatt("B056","seen",0); // B056 does not has sub-levels -
837 gMC->Gsatt("B059","seen",-1); // all B059 sub-levels skipped -
838 gMC->Gsatt("B072","seen",-1); // all B072 sub-levels skipped -
839 gMC->Gsatt("BTR1","seen",0); // BTR1 do not have sub-levels -
840 gMC->Gsatt("BTO1","seen",0);
842 // ==================> Level 3
843 // Level 3 of B071 / Level 2 of BTO1
844 gMC->Gsatt("FTOC","seen",0);
845 gMC->Gsatt("FTOB","seen",0);
846 gMC->Gsatt("FTOA","seen",0);
848 // Level 3 of B074 / Level 2 of BTO2
849 // -> cfr previous settings
851 // Level 3 of B075 / Level 2 of BTO3
852 // -> cfr previous settings
855 // ==========================> Level 4
856 // Level 4 of B071 / Level 3 of BTO1 / Level 2 of FTOC
857 gMC->Gsatt("FLTC","seen",0);
858 // Level 4 of B071 / Level 3 of BTO1 / Level 2 of FTOB
859 gMC->Gsatt("FLTB","seen",0);
860 // Level 4 of B071 / Level 3 of BTO1 / Level 2 of FTOA
861 gMC->Gsatt("FLTA","seen",0);
863 // Level 4 of B074 / Level 3 of BTO2 / Level 2 of FTOC
864 // -> cfr previous settings
865 // Level 4 of B074 / Level 3 of BTO2 / Level 2 of FTOB
866 // -> cfr previous settings
868 // Level 4 of B075 / Level 3 of BTO3 / Level 2 of FTOC
869 // -> cfr previous settings
871 //======================================> Level 5
872 // Level 5 of B071 / Level 4 of BTO1 / Level 3 of FTOC / Level 2 of FLTC
873 gMC->Gsatt("FALC","seen",0); // no children for FALC
874 gMC->Gsatt("FSTR","seen",-2);
875 gMC->Gsatt("FPEC","seen",0); // no children for FPEC
876 gMC->Gsatt("FECC","seen",0); // no children for FECC
877 gMC->Gsatt("FWAC","seen",0); // no children for FWAC
878 gMC->Gsatt("FAIC","seen",0); // no children for FAIC
880 // Level 5 of B071 / Level 4 of BTO1 / Level 3 of FTOB / Level 2 of FLTB
881 gMC->Gsatt("FALB","seen",0); // no children for FALB
882 //--> gMC->Gsatt("FSTR","seen",-2);
885 // -> cfr previous settings
886 gMC->Gsatt("FPEB","seen",0); // no children for FPEB
887 gMC->Gsatt("FECB","seen",0); // no children for FECB
888 gMC->Gsatt("FWAB","seen",0); // no children for FWAB
889 gMC->Gsatt("FAIB","seen",0); // no children for FAIB
891 // Level 5 of B071 / Level 4 of BTO1 / Level 3 of FTOA / Level 2 of FLTA
892 gMC->Gsatt("FALA","seen",0); // no children for FALB
893 //--> gMC->Gsatt("FSTR","seen",-2);
894 // -> cfr previous settings
895 gMC->Gsatt("FPEA","seen",0); // no children for FPEA
896 gMC->Gsatt("FECA","seen",0); // no children for FECA
897 gMC->Gsatt("FWAA","seen",0); // no children for FWAA
898 gMC->Gsatt("FAIA","seen",0); // no children for FAIA
901 gMC->Gsatt("BTR2","seen",0); // BTR2 does not has sub-levels -
902 gMC->Gsatt("BTO2","seen",0);
905 gMC->Gsatt("BTR3","seen",0); // BTR3 do not have sub-levels -
906 gMC->Gsatt("BTO3","seen",0);
908 // for others Level 5, cfr. previous settings
910 gMC->Gdopt("hide","on");
911 gMC->Gdopt("shad","on");
912 gMC->Gsatt("*", "fill", 5);
913 gMC->SetClipBox(".");
914 gMC->SetClipBox("*", 0, 1000, 0, 1000, 0, 1000);
916 gMC->Gdraw("alic", 45, 40, 0, 10, 10, .015, .015);
917 gMC->Gdhead(1111,"TOF Strips V1");
918 gMC->Gdman(18, 4, "MAN");
919 gMC->Gdopt("hide","off");
922 //_____________________________________________________________________________
923 void AliTOFv0::CreateMaterials()
926 // Define materials for the Time Of Flight
928 AliTOF::CreateMaterials();
931 //_____________________________________________________________________________
932 void AliTOFv0::Init()
935 // Initialise the detector after the geometry has been defined
937 printf("**************************************"
939 "**************************************\n");
940 printf("\n Version 0 of TOF initialing, "
941 "symmetric TOF - Full Coverage version\n");
945 fIdFTOA = gMC->VolId("FTOA");
946 fIdFTOB = gMC->VolId("FTOB");
947 fIdFTOC = gMC->VolId("FTOC");
948 fIdFLTA = gMC->VolId("FLTA");
949 fIdFLTB = gMC->VolId("FLTB");
950 fIdFLTC = gMC->VolId("FLTC");
953 printf("%s: **************************************"
955 "**************************************\n",ClassName());
959 //_____________________________________________________________________________
960 void AliTOFv0::StepManager()
963 // Procedure called at each step in the Time Of Flight
965 TLorentzVector mom, pos;
966 Float_t xm[3],pm[3],xpad[3],ppad[3];
967 Float_t hits[13],phi,phid,z;
969 Int_t sector, plate, padx, padz, strip;
970 Int_t copy, padzid, padxid, stripid, i;
971 Int_t *idtmed = fIdtmed->GetArray()-499;
972 Float_t incidenceAngle;
974 if(gMC->GetMedium()==idtmed[513] &&
975 gMC->IsTrackEntering() && gMC->TrackCharge()
976 && gMC->CurrentVolID(copy)==fIdSens)
978 // getting information about hit volumes
980 padzid=gMC->CurrentVolOffID(2,copy);
983 padxid=gMC->CurrentVolOffID(1,copy);
986 stripid=gMC->CurrentVolOffID(4,copy);
989 gMC->TrackPosition(pos);
990 gMC->TrackMomentum(mom);
992 // Double_t NormPos=1./pos.Rho();
993 Double_t normMom=1./mom.Rho();
995 // getting the cohordinates in pad ref system
996 xm[0] = (Float_t)pos.X();
997 xm[1] = (Float_t)pos.Y();
998 xm[2] = (Float_t)pos.Z();
1000 pm[0] = (Float_t)mom.X()*normMom;
1001 pm[1] = (Float_t)mom.Y()*normMom;
1002 pm[2] = (Float_t)mom.Z()*normMom;
1004 gMC->Gmtod(xm,xpad,1);
1005 gMC->Gmtod(pm,ppad,2);
1007 incidenceAngle = TMath::ACos(ppad[1])*kRaddeg;
1012 if (TMath::Abs(z) <= fZlenA*0.5) plate = 2; //3; // AdC
1013 if (z < (fZlenA*0.5+fZlenB) &&
1014 z > fZlenA*0.5) plate = 1; //4; // AdC
1015 if (z >-(fZlenA*0.5+fZlenB) &&
1016 z < -fZlenA*0.5) plate = 3; //2; // AdC
1017 if (z > (fZlenA*0.5+fZlenB)) plate = 0; //5; // AdC
1018 if (z <-(fZlenA*0.5+fZlenB)) plate = 4; //1; // AdC
1020 if (plate==0) strip=AliTOFConstants::fgkNStripC-strip; // AdC
1021 else if (plate==1) strip=AliTOFConstants::fgkNStripB-strip; // AdC
1022 else strip--; // AdC
1024 if (z<=0.) padx=AliTOFConstants::fgkNpadX-padx; // AdC
1027 if (plate==3 || plate==4) padz=AliTOFConstants::fgkNpadZ-padz; // AdC
1031 if (phi>=0.) phid = phi*kRaddeg; //+180.; // AdC
1032 else phid = phi*kRaddeg + 360.; // AdC
1033 sector = Int_t (phid/20.);
1041 hits[6] = mom.Rho();
1046 hits[11]= incidenceAngle;
1047 hits[12]= gMC->Edep();
1055 AddHit(gAlice->GetCurrentTrackNumber(),vol, hits);