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 1.25 2001/11/22 11:22:51 hristov
19 Updated version of TOF digitization, N^2 problem solved (J.Chudoba)
21 Revision 1.23 2001/09/27 10:39:20 vicinanz
22 SDigitizer and Merger added
24 Revision 1.22 2001/09/20 15:54:22 vicinanz
25 Updated Strip Structure (Double Stack)
27 Revision 1.21 2001/08/28 08:45:59 vicinanz
28 TTask and TFolder structures implemented
30 Revision 1.20 2001/05/16 14:57:24 alibrary
31 New files for folders and Stack
33 Revision 1.19 2001/05/04 10:09:48 vicinanz
34 Major upgrades to the strip structure
36 Revision 1.18 2000/12/04 08:48:20 alibrary
37 Fixing problems in the HEAD
39 Revision 1.17 2000/10/02 21:28:17 fca
40 Removal of useless dependecies via forward declarations
42 Revision 1.16 2000/05/10 16:52:18 vicinanz
43 New TOF version with holes for PHOS/RICH
45 Revision 1.14.2.1 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 2 of the Time Of Flight //
78 // VERSION WITH 5 MODULES AND TILTED STRIPS
80 // HOLES FOR PHOS AND RICH DETECTOR
87 // University of Salerno - Italy
90 // University of Bologna - Italy
95 <img src="picts/AliTOFv2Class.gif">
99 ///////////////////////////////////////////////////////////////////////////////
101 #include <iostream.h>
104 #include "AliTOFv2.h"
106 #include "TGeometry.h"
108 #include <TLorentzVector.h>
113 #include "AliConst.h"
118 //_____________________________________________________________________________
122 // Default constructor
126 //_____________________________________________________________________________
127 AliTOFv2::AliTOFv2(const char *name, const char *title)
131 // Standard constructor
134 // Check that FRAME is there otherwise we have no place where to
136 AliModule* frame=gAlice->GetModule("FRAME");
138 Error("Ctor","TOF needs FRAME to be present\n");
141 if(frame->IsVersion()!=1) {
142 Error("Ctor","FRAME version 1 needed with this version of TOF\n");
148 //____________________________________________________________________________
150 void AliTOFv2::BuildGeometry()
153 // Build TOF ROOT geometry for the ALICE event display
156 const int kColorTOF = 27;
159 top = gAlice->GetGeometry()->GetNode("alice");
161 // Position the different copies
162 const Float_t krTof =(fRmax+fRmin)/2;
163 const Float_t khTof = fRmax-fRmin;
164 const Int_t kNTof = fNTof;
165 const Float_t kPi = TMath::Pi();
166 const Float_t kangle = 2*kPi/kNTof;
169 // Define TOF basic volume
171 char nodeName0[6], nodeName1[6], nodeName2[6];
172 char nodeName3[6], nodeName4[6], rotMatNum[6];
174 new TBRIK("S_TOF_C","TOF box","void",
175 120*0.5,khTof*0.5,fZlenC*0.5);
176 new TBRIK("S_TOF_B","TOF box","void",
177 120*0.5,khTof*0.5,fZlenB*0.5);
178 new TBRIK("S_TOF_A","TOF box","void",
179 120*0.5,khTof*0.5,fZlenA*0.5);
181 for (Int_t nodeNum=1;nodeNum<19;nodeNum++){
184 sprintf(rotMatNum,"rot50%i",nodeNum);
185 sprintf(nodeName0,"FTO00%i",nodeNum);
186 sprintf(nodeName1,"FTO10%i",nodeNum);
187 sprintf(nodeName2,"FTO20%i",nodeNum);
188 sprintf(nodeName3,"FTO30%i",nodeNum);
189 sprintf(nodeName4,"FTO40%i",nodeNum);
192 sprintf(rotMatNum,"rot5%i",nodeNum);
193 sprintf(nodeName0,"FTO0%i",nodeNum);
194 sprintf(nodeName1,"FTO1%i",nodeNum);
195 sprintf(nodeName2,"FTO2%i",nodeNum);
196 sprintf(nodeName3,"FTO3%i",nodeNum);
197 sprintf(nodeName4,"FTO4%i",nodeNum);
200 new TRotMatrix(rotMatNum,rotMatNum,90,-20*nodeNum,90,90-20*nodeNum,0,0);
201 ang = (4.5-nodeNum) * kangle;
204 node = new TNode(nodeName0,nodeName0,"S_TOF_C",krTof*TMath::Cos(ang),krTof*TMath::Sin(ang),299.15,rotMatNum);
205 node->SetLineColor(kColorTOF);
209 node = new TNode(nodeName1,nodeName1,"S_TOF_C",krTof*TMath::Cos(ang),krTof*TMath::Sin(ang),-299.15,rotMatNum);
210 node->SetLineColor(kColorTOF);
212 if (nodeNum !=1 && nodeNum!=2 && nodeNum !=18)
215 node = new TNode(nodeName2,nodeName2,"S_TOF_B",krTof*TMath::Cos(ang),krTof*TMath::Sin(ang),146.45,rotMatNum);
216 node->SetLineColor(kColorTOF);
220 node = new TNode(nodeName3,nodeName3,"S_TOF_B",krTof*TMath::Cos(ang),krTof*TMath::Sin(ang),-146.45,rotMatNum);
221 node->SetLineColor(kColorTOF);
223 } // Holes for RICH detector
225 if ((nodeNum<8 || nodeNum>12) && nodeNum !=1 && nodeNum!=2 && nodeNum !=18)
228 node = new TNode(nodeName4,nodeName4,"S_TOF_A",krTof*TMath::Cos(ang),krTof*TMath::Sin(ang),0.,rotMatNum);
229 node->SetLineColor(kColorTOF);
231 } // Holes for PHOS detector (+ Holes for RICH detector, central part)
232 } // end loop on nodeNum
236 //_____________________________________________________________________________
237 void AliTOFv2::CreateGeometry()
240 // Create geometry for Time Of Flight version 0
244 <img src="picts/AliTOFv2.gif">
248 // Creates common geometry
250 AliTOF::CreateGeometry();
253 //_____________________________________________________________________________
254 void AliTOFv2::TOFpc(Float_t xtof, Float_t ytof, Float_t zlenC,
255 Float_t zlenB, Float_t zlenA, Float_t ztof0)
258 // Definition of the Time Of Fligh Resistive Plate Chambers
259 // xFLT, yFLT, zFLT - sizes of TOF modules (large)
261 Float_t ycoor, zcoor;
263 Int_t *idtmed = fIdtmed->GetArray()-499;
266 Float_t hTof = fRmax-fRmin;
268 Float_t radius = fRmin+2.;//cm
272 par[2] = zlenC * 0.5;
273 gMC->Gsvolu("FTOC", "BOX ", idtmed[506], par, 3);
274 par[2] = zlenB * 0.5;
275 gMC->Gsvolu("FTOB", "BOX ", idtmed[506], par, 3);
276 par[2] = zlenA * 0.5;
277 gMC->Gsvolu("FTOA", "BOX ", idtmed[506], par, 3);
280 // Positioning of modules
282 Float_t zcor1 = ztof0 - zlenC*0.5;
283 Float_t zcor2 = ztof0 - zlenC - zlenB*0.5;
286 AliMatrix(idrotm[0], 90., 0., 0., 0., 90,-90.);
287 AliMatrix(idrotm[1], 90.,180., 0., 0., 90, 90.);
288 gMC->Gspos("FTOC", 1, "BTO1", 0, zcor1, 0, idrotm[0], "ONLY");
289 gMC->Gspos("FTOC", 2, "BTO1", 0, -zcor1, 0, idrotm[1], "ONLY");
290 gMC->Gspos("FTOC", 1, "BTO2", 0, zcor1, 0, idrotm[0], "ONLY");
291 gMC->Gspos("FTOC", 2, "BTO2", 0, -zcor1, 0, idrotm[1], "ONLY");
292 gMC->Gspos("FTOC", 1, "BTO3", 0, zcor1, 0, idrotm[0], "ONLY");
293 gMC->Gspos("FTOC", 2, "BTO3", 0, -zcor1, 0, idrotm[1], "ONLY");
295 gMC->Gspos("FTOB", 1, "BTO1", 0, zcor2, 0, idrotm[0], "ONLY");
296 gMC->Gspos("FTOB", 2, "BTO1", 0, -zcor2, 0, idrotm[1], "ONLY");
297 gMC->Gspos("FTOB", 1, "BTO2", 0, zcor2, 0, idrotm[0], "ONLY");
298 gMC->Gspos("FTOB", 2, "BTO2", 0, -zcor2, 0, idrotm[1], "ONLY");
300 gMC->Gspos("FTOA", 0, "BTO1", 0, zcor3, 0, idrotm[0], "ONLY");
302 Float_t db = 0.5;//cm
303 Float_t xFLT, xFST, yFLT, zFLTA, zFLTB, zFLTC;
311 xFST = xFLT-fDeadBndX*2;//cm
313 // Sizes of MRPC pads
315 Float_t yPad = 0.505;//cm
317 // Large not sensitive volumes with Insensitive Freon
323 <<": ************************* TOF geometry **************************"
326 par[2] = (zFLTA *0.5);
327 gMC->Gsvolu("FLTA", "BOX ", idtmed[512], par, 3); // Insensitive Freon
328 gMC->Gspos ("FLTA", 0, "FTOA", 0., 0., 0., 0, "ONLY");
330 par[2] = (zFLTB * 0.5);
331 gMC->Gsvolu("FLTB", "BOX ", idtmed[512], par, 3); // Insensitive Freon
332 gMC->Gspos ("FLTB", 0, "FTOB", 0., 0., 0., 0, "ONLY");
334 par[2] = (zFLTC * 0.5);
335 gMC->Gsvolu("FLTC", "BOX ", idtmed[512], par, 3); // Insensitive Freon
336 gMC->Gspos ("FLTC", 0, "FTOC", 0., 0., 0., 0, "ONLY");
338 ////////// Layers of Aluminum before and after detector //////////
339 ////////// Aluminum Box for Modules (2.0 mm thickness) /////////
340 ////////// lateral walls not simulated
343 ycoor = -yFLT/2 + par[1];
344 par[2] = (zFLTA *0.5);
345 gMC->Gsvolu("FALA", "BOX ", idtmed[508], par, 3); // Alluminium
346 gMC->Gspos ("FALA", 1, "FLTA", 0., ycoor, 0., 0, "ONLY");
347 gMC->Gspos ("FALA", 2, "FLTA", 0.,-ycoor, 0., 0, "ONLY");
348 par[2] = (zFLTB *0.5);
349 gMC->Gsvolu("FALB", "BOX ", idtmed[508], par, 3); // Alluminium
350 gMC->Gspos ("FALB", 1, "FLTB", 0., ycoor, 0., 0, "ONLY");
351 gMC->Gspos ("FALB", 2, "FLTB", 0.,-ycoor, 0., 0, "ONLY");
352 par[2] = (zFLTC *0.5);
353 gMC->Gsvolu("FALC", "BOX ", idtmed[508], par, 3); // Alluminium
354 gMC->Gspos ("FALC", 1, "FLTC", 0., ycoor, 0., 0, "ONLY");
355 gMC->Gspos ("FALC", 2, "FLTC", 0.,-ycoor, 0., 0, "ONLY");
357 ///////////////// Detector itself //////////////////////
359 const Float_t kdeadBound = fDeadBndZ; //cm non-sensitive between the pad edge
360 //and the boundary of the strip
361 const Int_t knx = fNpadX; // number of pads along x
362 const Int_t knz = fNpadZ; // number of pads along z
363 const Float_t kspace = fSpace; //cm distance from the front plate of the box
365 Float_t zSenStrip = fZpad*fNpadZ;//cm
366 Float_t stripWidth = zSenStrip + 2*kdeadBound;
370 par[2] = stripWidth*0.5;
372 // new description for strip volume -double stack strip-
373 // -- all constants are expressed in cm
374 // heigth of different layers
375 const Float_t khhony = 1. ; // heigth of HONY Layer
376 const Float_t khpcby = 0.15 ; // heigth of PCB Layer
377 const Float_t khmyly = 0.035 ; // heigth of MYLAR Layer
378 const Float_t khgraphy = 0.02 ; // heigth of GRAPHITE Layer
379 const Float_t khglasseiy = 0.17; // 0.6 Ext. Glass + 1.1 i.e. (Int. Glass/2) (mm)
380 const Float_t khsensmy = 0.11 ; // heigth of Sensitive Freon Mixture
381 const Float_t kwsensmz = 2*3.5 ; // cm
382 const Float_t klsensmx = 48*2.5; // cm
383 const Float_t kwpadz = 3.5; // cm z dimension of the FPAD volume
384 const Float_t klpadx = 2.5; // cm x dimension of the FPAD volume
386 // heigth of the FSTR Volume (the strip volume)
387 const Float_t khstripy = 2*khhony+3*khpcby+4*(khmyly+khgraphy+khglasseiy)+2*khsensmy;
388 // width of the FSTR Volume (the strip volume)
389 const Float_t kwstripz = 10.;
390 // length of the FSTR Volume (the strip volume)
391 const Float_t klstripx = 122.;
393 Float_t parfp[3]={klstripx*0.5,khstripy*0.5,kwstripz*0.5};
394 // coordinates of the strip center in the strip reference frame; used for positioning
395 // internal strip volumes
396 Float_t posfp[3]={0.,0.,0.};
399 // FSTR volume definition and filling this volume with non sensitive Gas Mixture
400 gMC->Gsvolu("FSTR","BOX",idtmed[512],parfp,3);
401 //-- HONY Layer definition
403 parfp[1] = khhony*0.5;
405 gMC->Gsvolu("FHON","BOX",idtmed[503],parfp,3);
406 // positioning 2 HONY Layers on FSTR volume
408 posfp[1]=-khstripy*0.5+parfp[1];
409 gMC->Gspos("FHON",1,"FSTR",0., posfp[1],0.,0,"ONLY");
410 gMC->Gspos("FHON",2,"FSTR",0.,-posfp[1],0.,0,"ONLY");
412 //-- PCB Layer definition
413 parfp[1] = khpcby*0.5;
414 gMC->Gsvolu("FPCB","BOX",idtmed[504],parfp,3);
415 // positioning 2 PCB Layers on FSTR volume
416 posfp[1]=-khstripy*0.5+khhony+parfp[1];
417 gMC->Gspos("FPCB",1,"FSTR",0., posfp[1],0.,0,"ONLY");
418 gMC->Gspos("FPCB",2,"FSTR",0.,-posfp[1],0.,0,"ONLY");
419 // positioning the central PCB layer
420 gMC->Gspos("FPCB",3,"FSTR",0.,0.,0.,0,"ONLY");
424 //-- MYLAR Layer definition
425 parfp[1] = khmyly*0.5;
426 gMC->Gsvolu("FMYL","BOX",idtmed[511],parfp,3);
427 // positioning 2 MYLAR Layers on FSTR volume
428 posfp[1] = -khstripy*0.5+khhony+khpcby+parfp[1];
429 gMC->Gspos("FMYL",1,"FSTR",0., posfp[1],0.,0,"ONLY");
430 gMC->Gspos("FMYL",2,"FSTR",0.,-posfp[1],0.,0,"ONLY");
431 // adding further 2 MYLAR Layers on FSTR volume
432 posfp[1] = khpcby*0.5+parfp[1];
433 gMC->Gspos("FMYL",3,"FSTR",0., posfp[1],0.,0,"ONLY");
434 gMC->Gspos("FMYL",4,"FSTR",0.,-posfp[1],0.,0,"ONLY");
437 //-- Graphite Layer definition
438 parfp[1] = khgraphy*0.5;
439 gMC->Gsvolu("FGRP","BOX",idtmed[502],parfp,3);
440 // positioning 2 Graphite Layers on FSTR volume
441 posfp[1] = -khstripy*0.5+khhony+khpcby+khmyly+parfp[1];
442 gMC->Gspos("FGRP",1,"FSTR",0., posfp[1],0.,0,"ONLY");
443 gMC->Gspos("FGRP",2,"FSTR",0.,-posfp[1],0.,0,"ONLY");
444 // adding further 2 Graphite Layers on FSTR volume
445 posfp[1] = khpcby*0.5+khmyly+parfp[1];
446 gMC->Gspos("FGRP",3,"FSTR",0., posfp[1],0.,0,"ONLY");
447 gMC->Gspos("FGRP",4,"FSTR",0.,-posfp[1],0.,0,"ONLY");
450 //-- Glass (EXT. +Semi INT.) Layer definition
451 parfp[1] = khglasseiy*0.5;
452 gMC->Gsvolu("FGLA","BOX",idtmed[514],parfp,3);
453 // positioning 2 Glass Layers on FSTR volume
454 posfp[1] = -khstripy*0.5+khhony+khpcby+khmyly+khgraphy+parfp[1];
455 gMC->Gspos("FGLA",1,"FSTR",0., posfp[1],0.,0,"ONLY");
456 gMC->Gspos("FGLA",2,"FSTR",0.,-posfp[1],0.,0,"ONLY");
457 // adding further 2 Glass Layers on FSTR volume
458 posfp[1] = khpcby*0.5+khmyly+khgraphy+parfp[1];
459 gMC->Gspos("FGLA",3,"FSTR",0., posfp[1],0.,0,"ONLY");
460 gMC->Gspos("FGLA",4,"FSTR",0.,-posfp[1],0.,0,"ONLY");
463 //-- Sensitive Mixture Layer definition
464 parfp[0] = klsensmx*0.5;
465 parfp[1] = khsensmy*0.5;
466 parfp[2] = kwsensmz*0.5;
467 gMC->Gsvolu("FSEN","BOX",idtmed[513],parfp,3);
468 gMC->Gsvolu("FNSE","BOX",idtmed[512],parfp,3);
469 // positioning 2 gas Layers on FSTR volume
470 // the upper is insensitive freon
471 // while the remaining is sensitive
472 posfp[1] = khpcby*0.5+khmyly+khgraphy+khglasseiy+parfp[1];
473 gMC->Gspos("FNSE",0,"FSTR", 0., posfp[1],0.,0,"ONLY");
474 gMC->Gspos("FSEN",0,"FSTR", 0.,-posfp[1],0.,0,"ONLY");
476 // dividing FSEN along z in knz=2 and along x in knx=48
477 gMC->Gsdvn("FSEZ","FSEN",knz,3);
478 gMC->Gsdvn("FSEX","FSEZ",knx,1);
480 // FPAD volume definition
481 parfp[0] = klpadx*0.5;
482 parfp[1] = khsensmy*0.5;
483 parfp[2] = kwpadz*0.5;
484 gMC->Gsvolu("FPAD","BOX",idtmed[513],parfp,3);
485 // positioning the FPAD volumes on previous divisions
486 gMC->Gspos("FPAD",0,"FSEX",0.,0.,0.,0,"ONLY");
488 //// Positioning the Strips (FSTR) in the FLT volumes /////
492 Float_t t = zFLTC+zFLTB+zFLTA*0.5+ 2*db;//Half Width of Barrel
494 Float_t gap = fGapA+0.5; //cm updated distance between the strip axis
500 ycoor = -14.5 + kspace ; //2 cm over front plate
502 AliMatrix (idrotm[0], 90., 0.,90.,90.,0., 90.);
503 gMC->Gspos("FSTR",j,"FLTA",0.,ycoor, 0.,idrotm[0],"ONLY");
506 printf("%s: %f, St. %2i, Pl.3 ",ClassName(),ang*kRaddeg,i);
507 printf("%s: y = %f, z = %f, zpos = %f \n",ClassName(),ycoor,zcoor,zpos);
512 Int_t upDown = -1; // upDown=-1 -> Upper strip
513 // upDown=+1 -> Lower strip
515 ang = atan(zcoor/radius);
517 AliMatrix (idrotm[nrot], 90., 0.,90.-ang,90.,-ang, 90.);
518 AliMatrix (idrotm[nrot+1],90.,180.,90.+ang,90., ang, 90.);
520 ycoor = -14.5+ kspace; //2 cm over front plate
521 ycoor += (1-(upDown+1)/2)*gap;
522 gMC->Gspos("FSTR",j ,"FLTA",0.,ycoor, zcoor,idrotm[nrot], "ONLY");
523 gMC->Gspos("FSTR",j+1,"FLTA",0.,ycoor,-zcoor,idrotm[nrot+1],"ONLY");
526 printf("%s: %f, St. %2i, Pl.3 ",ClassName(),ang*kRaddeg,i);
527 printf("%s: y = %f, z = %f, zpos = %f \n",ClassName(),ycoor,zcoor,zpos);
531 upDown*= -1; // Alternate strips
532 zcoor = zcoor-(zSenStrip/2)/TMath::Cos(ang)-
533 upDown*gap*TMath::Tan(ang)-
534 (zSenStrip/2)/TMath::Cos(ang);
535 } while (zcoor-(stripWidth/2)*TMath::Cos(ang)>-t+zFLTC+zFLTB+db*2);
537 zcoor = zcoor+(zSenStrip/2)/TMath::Cos(ang)+
538 upDown*gap*TMath::Tan(ang)+
539 (zSenStrip/2)/TMath::Cos(ang);
542 zcoor = zcoor-(zSenStrip/2)/TMath::Cos(ang)-
543 upDown*gap*TMath::Tan(ang)-
544 (zSenStrip/2)/TMath::Cos(ang);
546 ang = atan(zcoor/radius);
548 AliMatrix (idrotm[nrot], 90., 0.,90.-ang,90.,-ang, 90.);
549 AliMatrix (idrotm[nrot+1],90.,180.,90.+ang,90., ang, 90.);
552 ycoor = -14.5+ kspace; //2 cm over front plate
553 ycoor += (1-(upDown+1)/2)*gap;
554 gMC->Gspos("FSTR",j ,"FLTA",0.,ycoor, zcoor,idrotm[nrot], "ONLY");
555 gMC->Gspos("FSTR",j+1,"FLTA",0.,ycoor,-zcoor,idrotm[nrot+1],"ONLY");
558 printf("%s: %f, St. %2i, Pl.3 ",ClassName(),ang*kRaddeg,i);
559 printf("%s: y = %f, z = %f, zpos = %f \n",ClassName(),ycoor,zcoor,zpos);
562 ycoor = -hTof/2.+ kspace;//2 cm over front plate
569 Float_t deadRegion = 1.0;//cm
571 zpos = zcoor - (zSenStrip/2)/TMath::Cos(ang)-
572 upDown*gap*TMath::Tan(ang)-
573 (zSenStrip/2)/TMath::Cos(ang)-
574 deadRegion/TMath::Cos(ang);
576 ang = atan(zpos/radius);
578 AliMatrix (idrotm[nrot], 90., 0., 90.-ang,90.,ang, 270.);
580 ycoor = -hTof*0.5+ kspace ; //2 cm over front plate
581 ycoor += (1-(upDown+1)/2)*gap;
582 zcoor = zpos+(zFLTA*0.5+zFLTB*0.5+db); // Moves to the system of the modulus FLTB
583 gMC->Gspos("FSTR",i, "FLTB", 0., ycoor, zcoor,idrotm[nrot], "ONLY");
586 printf("%s: %f, St. %2i, Pl.4 ",ClassName(),ang*kRaddeg,i);
587 printf("%s: y = %f, z = %f, zpos = %f \n",ClassName(),ycoor,zcoor,zpos);
594 zpos = zpos - (zSenStrip/2)/TMath::Cos(ang)-
595 upDown*gap*TMath::Tan(ang)-
596 (zSenStrip/2)/TMath::Cos(ang);
597 ang = atan(zpos/radius);
599 AliMatrix (idrotm[nrot], 90., 0., 90.-ang,90.,ang, 270.);
601 Float_t deltaSpaceinB=-0.5; // [cm] to avoid overlaps with the end of freon frame
602 Float_t deltaGapinB=0.5; // [cm] to avoid overlaps in between initial strips
603 ycoor = -hTof*0.5+ kspace+deltaSpaceinB ; //2 cm over front plate
604 ycoor += (1-(upDown+1)/2)*(gap+deltaGapinB);
605 zcoor = zpos+(zFLTA*0.5+zFLTB*0.5+db); // Moves to the system of the modulus FLTB
606 gMC->Gspos("FSTR",i, "FLTB", 0., ycoor, zcoor,idrotm[nrot], "ONLY");
609 printf("%s: %f, St. %2i, Pl.4 ",ClassName(),ang*kRaddeg,i);
610 printf("%s: y = %f, z = %f, zpos = %f \n",ClassName(),ycoor,zcoor,zpos);
615 } while (TMath::Abs(ang*kRaddeg)<22.5);
616 //till we reach a tilting angle of 22.5 degrees
618 ycoor = -hTof*0.5+ kspace ; //2 cm over front plate
619 zpos = zpos - zSenStrip/TMath::Cos(ang);
620 // this avoid overlaps in between outer strips in plate B
621 Float_t deltaMovingUp=0.8; // [cm]
622 Float_t deltaMovingDown=-0.5; // [cm]
625 ang = atan(zpos/radius);
627 AliMatrix (idrotm[nrot], 90., 0., 90.-ang,90.,ang, 270.);
629 zcoor = zpos+(zFLTB/2+zFLTA/2+db);
630 gMC->Gspos("FSTR",i, "FLTB", 0., ycoor+deltaMovingDown+deltaMovingUp, zcoor,idrotm[nrot], "ONLY");
631 deltaMovingUp+=0.8; // update delta moving toward the end of the plate
632 zpos = zpos - zSenStrip/TMath::Cos(ang);
634 printf("%s: %f, St. %2i, Pl.4 ",ClassName(),ang*kRaddeg,i);
635 printf("%s: y = %f, z = %f, zpos = %f \n",ClassName(),ycoor,zcoor,zpos);
639 } while (zpos-stripWidth*0.5/TMath::Cos(ang)>-t+zFLTC+db);
643 zpos = zpos + zSenStrip/TMath::Cos(ang);
645 zpos = zpos - (zSenStrip/2)/TMath::Cos(ang)+
647 (zSenStrip/2)/TMath::Cos(ang);
651 Float_t deltaGap=-2.5; // [cm] update distance from strip center and plate
652 ycoor= -hTof*0.5+kspace+gap+deltaGap;
656 ang = atan(zpos/radius);
658 AliMatrix (idrotm[nrot], 90., 0., 90.-ang,90.,ang, 270.);
660 zcoor = zpos+(zFLTC*0.5+zFLTB+zFLTA*0.5+db*2);
661 gMC->Gspos("FSTR",i, "FLTC", 0., ycoor, zcoor,idrotm[nrot], "ONLY");
664 printf("%s: %f, St. %2i, Pl.5 ",ClassName(),ang*kRaddeg,i);
665 printf("%s: y = %f, z = %f, zpos = %f \n",ClassName(),ycoor,zcoor,zpos);
668 zpos = zpos - zSenStrip/TMath::Cos(ang);
669 } while (zpos-stripWidth*TMath::Cos(ang)*0.5>-t);
672 ////////// Layers after strips /////////////////
673 // honeycomb (Polyethilene) Layer after (1.2cm)
675 Float_t overSpace = fOverSpc;//cm
679 par[2] = (zFLTA *0.5);
680 ycoor = -yFLT/2 + overSpace + par[1];
681 gMC->Gsvolu("FPEA", "BOX ", idtmed[503], par, 3); // Hony
682 gMC->Gspos ("FPEA", 0, "FLTA", 0., ycoor, 0., 0, "ONLY");
683 par[2] = (zFLTB *0.5);
684 gMC->Gsvolu("FPEB", "BOX ", idtmed[503], par, 3); // Hony
685 gMC->Gspos ("FPEB", 0, "FLTB", 0., ycoor, 0., 0, "ONLY");
686 par[2] = (zFLTC *0.5);
687 gMC->Gsvolu("FPEC", "BOX ", idtmed[503], par, 3); // Hony
688 gMC->Gspos ("FPEC", 0, "FLTC", 0., ycoor, 0., 0, "ONLY");
690 // Electronics (Cu) after
693 par[1] = 1.43*0.05*0.5; // 5% of X0
694 par[2] = (zFLTA *0.5);
696 gMC->Gsvolu("FECA", "BOX ", idtmed[501], par, 3); // Cu
697 gMC->Gspos ("FECA", 0, "FLTA", 0., ycoor, 0., 0, "ONLY");
698 par[2] = (zFLTB *0.5);
699 gMC->Gsvolu("FECB", "BOX ", idtmed[501], par, 3); // Cu
700 gMC->Gspos ("FECB", 0, "FLTB", 0., ycoor, 0., 0, "ONLY");
701 par[2] = (zFLTC *0.5);
702 gMC->Gsvolu("FECC", "BOX ", idtmed[501], par, 3); // Cu
703 gMC->Gspos ("FECC", 0, "FLTC", 0., ycoor, 0., 0, "ONLY");
705 // cooling WAter after
708 par[1] = 36.1*0.02*0.5; // 2% of X0
709 par[2] = (zFLTA *0.5);
711 gMC->Gsvolu("FWAA", "BOX ", idtmed[515], par, 3); // Water
712 gMC->Gspos ("FWAA", 0, "FLTA", 0., ycoor, 0., 0, "ONLY");
713 par[2] = (zFLTB *0.5);
714 gMC->Gsvolu("FWAB", "BOX ", idtmed[515], par, 3); // Water
715 gMC->Gspos ("FWAB", 0, "FLTB", 0., ycoor, 0., 0, "ONLY");
716 par[2] = (zFLTC *0.5);
717 gMC->Gsvolu("FWAC", "BOX ", idtmed[515], par, 3); // Water
718 gMC->Gspos ("FWAC", 0, "FLTC", 0., ycoor, 0., 0, "ONLY");
723 par[1] = (yFLT/2-ycoor-0.2)*0.5; // Aluminum layer considered (0.2 cm)
724 par[2] = (zFLTA *0.5);
726 gMC->Gsvolu("FAIA", "BOX ", idtmed[500], par, 3); // Air
727 gMC->Gspos ("FAIA", 0, "FLTA", 0., ycoor, 0., 0, "ONLY");
728 par[2] = (zFLTB *0.5);
729 gMC->Gsvolu("FAIB", "BOX ", idtmed[500], par, 3); // Air
730 gMC->Gspos ("FAIB", 0, "FLTB", 0., ycoor, 0., 0, "ONLY");
731 par[2] = (zFLTC *0.5);
732 gMC->Gsvolu("FAIC", "BOX ", idtmed[500], par, 3); // Air
733 gMC->Gspos ("FAIC", 0, "FLTC", 0., ycoor, 0., 0, "ONLY");
735 //Back Plate honycomb (2cm)
739 ycoor = yFLT/2 - par[1];
740 gMC->Gsvolu("FBPA", "BOX ", idtmed[503], par, 3); // Hony
741 gMC->Gspos ("FBPA", 0, "FLTA", 0., ycoor, 0., 0, "ONLY");
742 gMC->Gsvolu("FBPB", "BOX ", idtmed[503], par, 3); // Hony
743 gMC->Gspos ("FBPB", 0, "FLTB", 0., ycoor, 0., 0, "ONLY");
744 gMC->Gsvolu("FBPC", "BOX ", idtmed[503], par, 3); // Hony
745 gMC->Gspos ("FBPC", 0, "FLTC", 0., ycoor, 0., 0, "ONLY");
749 //_____________________________________________________________________________
750 void AliTOFv2::DrawModule() const
753 // Draw a shaded view of the Time Of Flight version 2
755 // Set everything unseen
756 gMC->Gsatt("*", "seen", -1);
758 // Set ALIC mother transparent
759 gMC->Gsatt("ALIC","SEEN",0);
761 // Set the volumes visible
762 gMC->Gsatt("ALIC","SEEN",0);
764 gMC->Gsatt("FTOA","SEEN",1);
765 gMC->Gsatt("FTOB","SEEN",1);
766 gMC->Gsatt("FTOC","SEEN",1);
767 gMC->Gsatt("FLTA","SEEN",1);
768 gMC->Gsatt("FLTB","SEEN",1);
769 gMC->Gsatt("FLTC","SEEN",1);
770 gMC->Gsatt("FPLA","SEEN",1);
771 gMC->Gsatt("FPLB","SEEN",1);
772 gMC->Gsatt("FPLC","SEEN",1);
773 gMC->Gsatt("FSTR","SEEN",1);
774 gMC->Gsatt("FPEA","SEEN",1);
775 gMC->Gsatt("FPEB","SEEN",1);
776 gMC->Gsatt("FPEC","SEEN",1);
778 gMC->Gsatt("FLZ1","SEEN",0);
779 gMC->Gsatt("FLZ2","SEEN",0);
780 gMC->Gsatt("FLZ3","SEEN",0);
781 gMC->Gsatt("FLX1","SEEN",0);
782 gMC->Gsatt("FLX2","SEEN",0);
783 gMC->Gsatt("FLX3","SEEN",0);
784 gMC->Gsatt("FPAD","SEEN",0);
786 gMC->Gdopt("hide", "on");
787 gMC->Gdopt("shad", "on");
788 gMC->Gsatt("*", "fill", 7);
789 gMC->SetClipBox(".");
790 gMC->SetClipBox("*", 0, 1000, -1000, 1000, -1000, 1000);
792 gMC->Gdraw("alic", 40, 30, 0, 12, 9.5, .02, .02);
793 gMC->Gdhead(1111, "Time Of Flight");
794 gMC->Gdman(18, 4, "MAN");
795 gMC->Gdopt("hide","off");
797 //_____________________________________________________________________________
798 void AliTOFv2::DrawDetectorModules()
801 // Draw a shaded view of the TOF detector version 2
804 AliMC* pMC = AliMC::GetMC();
806 //Set ALIC mother transparent
807 pMC->Gsatt("ALIC","SEEN",0);
810 //Set volumes visible
813 // Level 1 for TOF volumes
814 gMC->Gsatt("B077","seen",0);
817 //==========> Level 2
819 gMC->Gsatt("B076","seen",-1); // all B076 sub-levels skipped -
820 gMC->Gsatt("B071","seen",0);
821 gMC->Gsatt("B074","seen",0);
822 gMC->Gsatt("B075","seen",0);
823 gMC->Gsatt("B080","seen",0); // B080 does not has sub-level
827 gMC->Gsatt("B063","seen",-1); // all B063 sub-levels skipped -
828 gMC->Gsatt("B065","seen",-1); // all B065 sub-levels skipped -
829 gMC->Gsatt("B067","seen",-1); // all B067 sub-levels skipped -
830 gMC->Gsatt("B069","seen",-1); // all B069 sub-levels skipped -
831 gMC->Gsatt("B056","seen",0); // B056 does not has sub-levels -
832 gMC->Gsatt("B059","seen",-1); // all B059 sub-levels skipped -
833 gMC->Gsatt("B072","seen",-1); // all B072 sub-levels skipped -
834 gMC->Gsatt("BTR1","seen",0); // BTR1 do not have sub-levels -
835 gMC->Gsatt("BTO1","seen",0);
839 gMC->Gsatt("BTR2","seen",0); // BTR2 does not has sub-levels -
840 gMC->Gsatt("BTO2","seen",0);
843 gMC->Gsatt("BTR3","seen",0); // BTR3 do not have sub-levels -
844 gMC->Gsatt("BTO3","seen",0);
846 // ==================> Level 3
847 // Level 3 of B071 / Level 2 of BTO1
848 gMC->Gsatt("FTOC","seen",-2);
849 gMC->Gsatt("FTOB","seen",-2);
850 gMC->Gsatt("FTOA","seen",-2);
852 // Level 3 of B074 / Level 2 of BTO2
853 // -> cfr previous settings
855 // Level 3 of B075 / Level 2 of BTO3
856 // -> cfr previous settings
858 gMC->Gdopt("hide","on");
859 gMC->Gdopt("shad","on");
860 gMC->Gsatt("*", "fill", 5);
861 gMC->SetClipBox(".");
862 gMC->SetClipBox("*", 0, 1000, 0, 1000, 0, 1000);
864 gMC->Gdraw("alic", 45, 40, 0, 10, 10, .015, .015);
865 gMC->Gdhead(1111,"TOF detector V1");
866 gMC->Gdman(18, 4, "MAN");
867 gMC->Gdopt("hide","off");
870 //_____________________________________________________________________________
871 void AliTOFv2::DrawDetectorStrips()
874 // Draw a shaded view of the TOF strips for version 2
877 AliMC* pMC = AliMC::GetMC();
879 //Set ALIC mother transparent
880 pMC->Gsatt("ALIC","SEEN",0);
883 //Set volumes visible
885 // Level 1 for TOF volumes
886 gMC->Gsatt("B077","seen",0);
888 //==========> Level 2
890 gMC->Gsatt("B076","seen",-1); // all B076 sub-levels skipped -
891 gMC->Gsatt("B071","seen",0);
892 gMC->Gsatt("B074","seen",0);
893 gMC->Gsatt("B075","seen",0);
894 gMC->Gsatt("B080","seen",0); // B080 does not has sub-level
897 gMC->Gsatt("B063","seen",-1); // all B063 sub-levels skipped -
898 gMC->Gsatt("B065","seen",-1); // all B065 sub-levels skipped -
899 gMC->Gsatt("B067","seen",-1); // all B067 sub-levels skipped -
900 gMC->Gsatt("B069","seen",-1); // all B069 sub-levels skipped -
901 gMC->Gsatt("B056","seen",0); // B056 does not has sub-levels -
902 gMC->Gsatt("B059","seen",-1); // all B059 sub-levels skipped -
903 gMC->Gsatt("B072","seen",-1); // all B072 sub-levels skipped -
904 gMC->Gsatt("BTR1","seen",0); // BTR1 do not have sub-levels -
905 gMC->Gsatt("BTO1","seen",0);
907 // ==================> Level 3
908 // Level 3 of B071 / Level 2 of BTO1
909 gMC->Gsatt("FTOC","seen",0);
910 gMC->Gsatt("FTOB","seen",0);
911 gMC->Gsatt("FTOA","seen",0);
913 // Level 3 of B074 / Level 2 of BTO2
914 // -> cfr previous settings
916 // Level 3 of B075 / Level 2 of BTO3
917 // -> cfr previous settings
920 // ==========================> Level 4
921 // Level 4 of B071 / Level 3 of BTO1 / Level 2 of FTOC
922 gMC->Gsatt("FLTC","seen",0);
923 // Level 4 of B071 / Level 3 of BTO1 / Level 2 of FTOB
924 gMC->Gsatt("FLTB","seen",0);
925 // Level 4 of B071 / Level 3 of BTO1 / Level 2 of FTOA
926 gMC->Gsatt("FLTA","seen",0);
928 // Level 4 of B074 / Level 3 of BTO2 / Level 2 of FTOC
929 // -> cfr previous settings
930 // Level 4 of B074 / Level 3 of BTO2 / Level 2 of FTOB
931 // -> cfr previous settings
933 // Level 4 of B075 / Level 3 of BTO3 / Level 2 of FTOC
934 // -> cfr previous settings
936 //======================================> Level 5
937 // Level 5 of B071 / Level 4 of BTO1 / Level 3 of FTOC / Level 2 of FLTC
938 gMC->Gsatt("FALC","seen",0); // no children for FALC
939 gMC->Gsatt("FSTR","seen",-2);
940 gMC->Gsatt("FPEC","seen",0); // no children for FPEC
941 gMC->Gsatt("FECC","seen",0); // no children for FECC
942 gMC->Gsatt("FWAC","seen",0); // no children for FWAC
943 gMC->Gsatt("FAIC","seen",0); // no children for FAIC
945 // Level 5 of B071 / Level 4 of BTO1 / Level 3 of FTOB / Level 2 of FLTB
946 gMC->Gsatt("FALB","seen",0); // no children for FALB
947 //--> gMC->Gsatt("FSTR","seen",-2);
950 // -> cfr previous settings
951 gMC->Gsatt("FPEB","seen",0); // no children for FPEB
952 gMC->Gsatt("FECB","seen",0); // no children for FECB
953 gMC->Gsatt("FWAB","seen",0); // no children for FWAB
954 gMC->Gsatt("FAIB","seen",0); // no children for FAIB
956 // Level 5 of B071 / Level 4 of BTO1 / Level 3 of FTOA / Level 2 of FLTA
957 gMC->Gsatt("FALA","seen",0); // no children for FALB
958 //--> gMC->Gsatt("FSTR","seen",-2);
959 // -> cfr previous settings
960 gMC->Gsatt("FPEA","seen",0); // no children for FPEA
961 gMC->Gsatt("FECA","seen",0); // no children for FECA
962 gMC->Gsatt("FWAA","seen",0); // no children for FWAA
963 gMC->Gsatt("FAIA","seen",0); // no children for FAIA
966 gMC->Gsatt("BTR2","seen",0); // BTR2 does not has sub-levels -
967 gMC->Gsatt("BTO2","seen",0);
970 gMC->Gsatt("BTR3","seen",0); // BTR3 do not have sub-levels -
971 gMC->Gsatt("BTO3","seen",0);
973 // for others Level 5, cfr. previous settings
975 gMC->Gdopt("hide","on");
976 gMC->Gdopt("shad","on");
977 gMC->Gsatt("*", "fill", 5);
978 gMC->SetClipBox(".");
979 gMC->SetClipBox("*", 0, 1000, 0, 1000, 0, 1000);
981 gMC->Gdraw("alic", 45, 40, 0, 10, 10, .015, .015);
982 gMC->Gdhead(1111,"TOF Strips V1");
983 gMC->Gdman(18, 4, "MAN");
984 gMC->Gdopt("hide","off");
987 //_____________________________________________________________________________
988 void AliTOFv2::CreateMaterials()
991 // Define materials for the Time Of Flight
993 AliTOF::CreateMaterials();
996 //_____________________________________________________________________________
997 void AliTOFv2::Init()
1000 // Initialise the detector after the geometry has been defined
1003 printf("%s: **************************************"
1005 "**************************************\n",ClassName());
1006 printf("\n%s: Version 2 of TOF initialing, "
1007 "TOF with holes for PHOS and RICH \n",ClassName());
1012 fIdFTOA = gMC->VolId("FTOA");
1013 fIdFTOB = gMC->VolId("FTOB");
1014 fIdFTOC = gMC->VolId("FTOC");
1015 fIdFLTA = gMC->VolId("FLTA");
1016 fIdFLTB = gMC->VolId("FLTB");
1017 fIdFLTC = gMC->VolId("FLTC");
1020 printf("%s: **************************************"
1022 "**************************************\n",ClassName());
1026 //_____________________________________________________________________________
1027 void AliTOFv2::StepManager()
1030 // Procedure called at each step in the Time Of Flight
1032 TLorentzVector mom, pos;
1033 Float_t xm[3],pm[3],xpad[3],ppad[3];
1034 Float_t hits[13],phi,phid,z;
1036 Int_t sector, plate, padx, padz, strip;
1037 Int_t copy, padzid, padxid, stripid, i;
1038 Int_t *idtmed = fIdtmed->GetArray()-499;
1039 Float_t incidenceAngle;
1041 if(gMC->GetMedium()==idtmed[513] &&
1042 gMC->IsTrackEntering() && gMC->TrackCharge()
1043 && gMC->CurrentVolID(copy)==fIdSens)
1045 // getting information about hit volumes
1047 padzid=gMC->CurrentVolOffID(2,copy);
1050 padxid=gMC->CurrentVolOffID(1,copy);
1053 stripid=gMC->CurrentVolOffID(4,copy);
1056 gMC->TrackPosition(pos);
1057 gMC->TrackMomentum(mom);
1059 // Double_t NormPos=1./pos.Rho();
1060 Double_t normMom=1./mom.Rho();
1062 // getting the cohordinates in pad ref system
1063 xm[0] = (Float_t)pos.X();
1064 xm[1] = (Float_t)pos.Y();
1065 xm[2] = (Float_t)pos.Z();
1067 pm[0] = (Float_t)mom.X()*normMom;
1068 pm[1] = (Float_t)mom.Y()*normMom;
1069 pm[2] = (Float_t)mom.Z()*normMom;
1071 gMC->Gmtod(xm,xpad,1);
1072 gMC->Gmtod(pm,ppad,2);
1074 if (ppad[1] > 1.) ppad[1]=1;
1075 if (ppad[1] < -1.) ppad[1]=-1;
1076 incidenceAngle = TMath::ACos(ppad[1])*kRaddeg;
1081 if (TMath::Abs(z) <= fZlenA*0.5) plate = 3;
1082 if (z < (fZlenA*0.5+fZlenB) &&
1083 z > fZlenA*0.5) plate = 4;
1084 if (z >-(fZlenA*0.5+fZlenB) &&
1085 z < -fZlenA*0.5) plate = 2;
1086 if (z > (fZlenA*0.5+fZlenB)) plate = 5;
1087 if (z <-(fZlenA*0.5+fZlenB)) plate = 1;
1090 phid = phi*kRaddeg+180.;
1091 sector = Int_t (phid/20.);
1099 hits[6] = mom.Rho();
1104 hits[11]= incidenceAngle;
1105 hits[12]= gMC->Edep();
1113 AddHit(gAlice->CurrentTrack(),vol, hits);