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 1.24 2001/09/27 10:39:20 vicinanz
19 SDigitizer and Merger added
21 Revision 1.23 2001/09/20 15:54:22 vicinanz
22 Updated Strip Structure (Double Stack)
24 Revision 1.22 2001/08/28 08:45:59 vicinanz
25 TTask and TFolder structures implemented
27 Revision 1.21 2001/05/16 14:57:24 alibrary
28 New files for folders and Stack
30 Revision 1.20 2001/05/04 10:09:48 vicinanz
31 Major upgrades to the strip structure
33 Revision 1.19 2000/12/04 08:48:20 alibrary
34 Fixing problems in the HEAD
36 Revision 1.18 2000/10/02 21:28:17 fca
37 Removal of useless dependecies via forward declarations
39 Revision 1.17 2000/06/06 07:52:09 vicinanz
40 NodeName array dimension enlarged
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 1 of the Time Of Flight //
78 // VERSION WITH 5 MODULES AND TILTED STRIPS
80 // HOLES FOR PHOS DETECTOR
87 // University of Salerno - Italy
90 // University of Bologna - Italy
95 <img src="picts/AliTOFv1Class.gif">
99 ///////////////////////////////////////////////////////////////////////////////
101 #include <iostream.h>
104 #include "AliTOFv1.h"
106 #include "TGeometry.h"
109 #include <TLorentzVector.h>
113 #include "AliConst.h"
118 //_____________________________________________________________________________
122 // Default constructor
126 //_____________________________________________________________________________
127 AliTOFv1::AliTOFv1(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");
150 //____________________________________________________________________________
152 void AliTOFv1::BuildGeometry()
155 // Build TOF ROOT geometry for the ALICE event display
158 const int kColorTOF = 27;
161 top = gAlice->GetGeometry()->GetNode("alice");
163 // Position the different copies
164 const Float_t krTof =(fRmax+fRmin)/2;
165 const Float_t khTof = fRmax-fRmin;
166 const Int_t kNTof = fNTof;
167 const Float_t kPi = TMath::Pi();
168 const Float_t kangle = 2*kPi/kNTof;
171 // Define TOF basic volume
173 char nodeName0[7], nodeName1[7], nodeName2[7];
174 char nodeName3[7], nodeName4[7], rotMatNum[7];
176 new TBRIK("S_TOF_C","TOF box","void",
177 120*0.5,khTof*0.5,fZlenC*0.5);
178 new TBRIK("S_TOF_B","TOF box","void",
179 120*0.5,khTof*0.5,fZlenB*0.5);
180 new TBRIK("S_TOF_A","TOF box","void",
181 120*0.5,khTof*0.5,fZlenA*0.5);
183 for (Int_t nodeNum=1;nodeNum<19;nodeNum++){
186 sprintf(rotMatNum,"rot50%i",nodeNum);
187 sprintf(nodeName0,"FTO00%i",nodeNum);
188 sprintf(nodeName1,"FTO10%i",nodeNum);
189 sprintf(nodeName2,"FTO20%i",nodeNum);
190 sprintf(nodeName3,"FTO30%i",nodeNum);
191 sprintf(nodeName4,"FTO40%i",nodeNum);
194 sprintf(rotMatNum,"rot5%i",nodeNum);
195 sprintf(nodeName0,"FTO0%i",nodeNum);
196 sprintf(nodeName1,"FTO1%i",nodeNum);
197 sprintf(nodeName2,"FTO2%i",nodeNum);
198 sprintf(nodeName3,"FTO3%i",nodeNum);
199 sprintf(nodeName4,"FTO4%i",nodeNum);
202 new TRotMatrix(rotMatNum,rotMatNum,90,-20*nodeNum,90,90-20*nodeNum,0,0);
203 ang = (4.5-nodeNum) * kangle;
206 node = new TNode(nodeName0,nodeName0,"S_TOF_C",krTof*TMath::Cos(ang),krTof*TMath::Sin(ang),299.15,rotMatNum);
207 node->SetLineColor(kColorTOF);
211 node = new TNode(nodeName1,nodeName1,"S_TOF_C",krTof*TMath::Cos(ang),krTof*TMath::Sin(ang),-299.15,rotMatNum);
212 node->SetLineColor(kColorTOF);
216 node = new TNode(nodeName2,nodeName2,"S_TOF_B",krTof*TMath::Cos(ang),krTof*TMath::Sin(ang),146.45,rotMatNum);
217 node->SetLineColor(kColorTOF);
221 node = new TNode(nodeName3,nodeName3,"S_TOF_B",krTof*TMath::Cos(ang),krTof*TMath::Sin(ang),-146.45,rotMatNum);
222 node->SetLineColor(kColorTOF);
225 if (nodeNum<8 || nodeNum>12) {
227 node = new TNode(nodeName4,nodeName4,"S_TOF_A",krTof*TMath::Cos(ang),krTof*TMath::Sin(ang),0.,rotMatNum);
228 node->SetLineColor(kColorTOF);
230 } // Modules A which are not to be installed for PHOS holes.
231 } // end loop on nodeNum
235 //_____________________________________________________________________________
236 void AliTOFv1::CreateGeometry()
239 // Create geometry for Time Of Flight version 0
243 <img src="picts/AliTOFv1.gif">
247 // Creates common geometry
249 AliTOF::CreateGeometry();
252 //_____________________________________________________________________________
253 void AliTOFv1::TOFpc(Float_t xtof, Float_t ytof, Float_t zlenC,
254 Float_t zlenB, Float_t zlenA, Float_t ztof0)
257 // Definition of the Time Of Fligh Resistive Plate Chambers
258 // xFLT, yFLT, zFLT - sizes of TOF modules (large)
260 Float_t ycoor, zcoor;
262 Int_t *idtmed = fIdtmed->GetArray()-499;
265 Float_t hTof = fRmax-fRmin;
267 Float_t radius = fRmin+2.;//cm
271 par[2] = zlenC * 0.5;
272 gMC->Gsvolu("FTOC", "BOX ", idtmed[506], par, 3);
273 par[2] = zlenB * 0.5;
274 gMC->Gsvolu("FTOB", "BOX ", idtmed[506], par, 3);
275 par[2] = zlenA * 0.5;
276 gMC->Gsvolu("FTOA", "BOX ", idtmed[506], par, 3);
279 // Positioning of modules
281 Float_t zcor1 = ztof0 - zlenC*0.5;
282 Float_t zcor2 = ztof0 - zlenC - zlenB*0.5;
285 AliMatrix(idrotm[0], 90., 0., 0., 0., 90,-90.);
286 AliMatrix(idrotm[1], 90.,180., 0., 0., 90, 90.);
287 gMC->Gspos("FTOC", 1, "BTO1", 0, zcor1, 0, idrotm[0], "ONLY");
288 gMC->Gspos("FTOC", 2, "BTO1", 0, -zcor1, 0, idrotm[1], "ONLY");
289 gMC->Gspos("FTOC", 1, "BTO2", 0, zcor1, 0, idrotm[0], "ONLY");
290 gMC->Gspos("FTOC", 2, "BTO2", 0, -zcor1, 0, idrotm[1], "ONLY");
291 gMC->Gspos("FTOC", 1, "BTO3", 0, zcor1, 0, idrotm[0], "ONLY");
292 gMC->Gspos("FTOC", 2, "BTO3", 0, -zcor1, 0, idrotm[1], "ONLY");
294 gMC->Gspos("FTOB", 1, "BTO1", 0, zcor2, 0, idrotm[0], "ONLY");
295 gMC->Gspos("FTOB", 2, "BTO1", 0, -zcor2, 0, idrotm[1], "ONLY");
296 gMC->Gspos("FTOB", 1, "BTO2", 0, zcor2, 0, idrotm[0], "ONLY");
297 gMC->Gspos("FTOB", 2, "BTO2", 0, -zcor2, 0, idrotm[1], "ONLY");
298 gMC->Gspos("FTOB", 1, "BTO3", 0, zcor2, 0, idrotm[0], "ONLY");
299 gMC->Gspos("FTOB", 2, "BTO3", 0, -zcor2, 0, idrotm[1], "ONLY");
301 gMC->Gspos("FTOA", 0, "BTO1", 0, zcor3, 0, idrotm[0], "ONLY");
302 gMC->Gspos("FTOA", 0, "BTO3", 0, zcor3, 0, idrotm[0], "ONLY");
304 Float_t db = 0.5;//cm
305 Float_t xFLT, xFST, yFLT, zFLTA, zFLTB, zFLTC;
313 xFST = xFLT-fDeadBndX*2;//cm
315 // Sizes of MRPC pads
317 Float_t yPad = 0.505;//cm
319 // Large not sensitive volumes with Insensitive Freon
323 if(fDebug) cout << ClassName()
324 << ": ************************* TOF geometry **************************"
327 par[2] = (zFLTA *0.5);
328 gMC->Gsvolu("FLTA", "BOX ", idtmed[512], par, 3); // Insensitive Freon
329 gMC->Gspos ("FLTA", 0, "FTOA", 0., 0., 0., 0, "ONLY");
331 par[2] = (zFLTB * 0.5);
332 gMC->Gsvolu("FLTB", "BOX ", idtmed[512], par, 3); // Insensitive Freon
333 gMC->Gspos ("FLTB", 0, "FTOB", 0., 0., 0., 0, "ONLY");
335 par[2] = (zFLTC * 0.5);
336 gMC->Gsvolu("FLTC", "BOX ", idtmed[512], par, 3); // Insensitive Freon
337 gMC->Gspos ("FLTC", 0, "FTOC", 0., 0., 0., 0, "ONLY");
339 ////////// Layers of Aluminum before and after detector //////////
340 ////////// Aluminum Box for Modules (2.0 mm thickness) /////////
341 ////////// lateral walls not simulated
344 ycoor = -yFLT/2 + par[1];
345 par[2] = (zFLTA *0.5);
346 gMC->Gsvolu("FALA", "BOX ", idtmed[508], par, 3); // Alluminium
347 gMC->Gspos ("FALA", 1, "FLTA", 0., ycoor, 0., 0, "ONLY");
348 gMC->Gspos ("FALA", 2, "FLTA", 0.,-ycoor, 0., 0, "ONLY");
349 par[2] = (zFLTB *0.5);
350 gMC->Gsvolu("FALB", "BOX ", idtmed[508], par, 3); // Alluminium
351 gMC->Gspos ("FALB", 1, "FLTB", 0., ycoor, 0., 0, "ONLY");
352 gMC->Gspos ("FALB", 2, "FLTB", 0.,-ycoor, 0., 0, "ONLY");
353 par[2] = (zFLTC *0.5);
354 gMC->Gsvolu("FALC", "BOX ", idtmed[508], par, 3); // Alluminium
355 gMC->Gspos ("FALC", 1, "FLTC", 0., ycoor, 0., 0, "ONLY");
356 gMC->Gspos ("FALC", 2, "FLTC", 0.,-ycoor, 0., 0, "ONLY");
358 ///////////////// Detector itself //////////////////////
360 const Float_t kdeadBound = fDeadBndZ; //cm non-sensitive between the pad edge
361 //and the boundary of the strip
362 const Int_t knx = fNpadX; // number of pads along x
363 const Int_t knz = fNpadZ; // number of pads along z
364 const Float_t kspace = fSpace; //cm distance from the front plate of the box
366 Float_t zSenStrip = fZpad*fNpadZ;//cm
367 Float_t stripWidth = zSenStrip + 2*kdeadBound;
371 par[2] = stripWidth*0.5;
373 // new description for strip volume -double stack strip-
374 // -- all constants are expressed in cm
375 // heigth of different layers
376 const Float_t khhony = 1. ; // heigth of HONY Layer
377 const Float_t khpcby = 0.15 ; // heigth of PCB Layer
378 const Float_t khmyly = 0.035 ; // heigth of MYLAR Layer
379 const Float_t khgraphy = 0.02 ; // heigth of GRAPHITE Layer
380 const Float_t khglasseiy = 0.17; // 0.6 Ext. Glass + 1.1 i.e. (Int. Glass/2) (mm)
381 const Float_t khsensmy = 0.11 ; // heigth of Sensitive Freon Mixture
382 const Float_t kwsensmz = 2*3.5 ; // cm
383 const Float_t klsensmx = 48*2.5; // cm
384 const Float_t kwpadz = 3.5; // cm z dimension of the FPAD volume
385 const Float_t klpadx = 2.5; // cm x dimension of the FPAD volume
387 // heigth of the FSTR Volume (the strip volume)
388 const Float_t khstripy = 2*khhony+3*khpcby+4*(khmyly+khgraphy+khglasseiy)+2*khsensmy;
389 // width of the FSTR Volume (the strip volume)
390 const Float_t kwstripz = 10.;
391 // length of the FSTR Volume (the strip volume)
392 const Float_t klstripx = 122.;
394 Float_t parfp[3]={klstripx*0.5,khstripy*0.5,kwstripz*0.5};
395 // coordinates of the strip center in the strip reference frame; used for positioning
396 // internal strip volumes
397 Float_t posfp[3]={0.,0.,0.};
400 // FSTR volume definition and filling this volume with non sensitive Gas Mixture
401 gMC->Gsvolu("FSTR","BOX",idtmed[512],parfp,3);
402 //-- HONY Layer definition
404 parfp[1] = khhony*0.5;
406 gMC->Gsvolu("FHON","BOX",idtmed[503],parfp,3);
407 // positioning 2 HONY Layers on FSTR volume
409 posfp[1]=-khstripy*0.5+parfp[1];
410 gMC->Gspos("FHON",1,"FSTR",0., posfp[1],0.,0,"ONLY");
411 gMC->Gspos("FHON",2,"FSTR",0.,-posfp[1],0.,0,"ONLY");
413 //-- PCB Layer definition
414 parfp[1] = khpcby*0.5;
415 gMC->Gsvolu("FPCB","BOX",idtmed[504],parfp,3);
416 // positioning 2 PCB Layers on FSTR volume
417 posfp[1]=-khstripy*0.5+khhony+parfp[1];
418 gMC->Gspos("FPCB",1,"FSTR",0., posfp[1],0.,0,"ONLY");
419 gMC->Gspos("FPCB",2,"FSTR",0.,-posfp[1],0.,0,"ONLY");
420 // positioning the central PCB layer
421 gMC->Gspos("FPCB",3,"FSTR",0.,0.,0.,0,"ONLY");
425 //-- MYLAR Layer definition
426 parfp[1] = khmyly*0.5;
427 gMC->Gsvolu("FMYL","BOX",idtmed[511],parfp,3);
428 // positioning 2 MYLAR Layers on FSTR volume
429 posfp[1] = -khstripy*0.5+khhony+khpcby+parfp[1];
430 gMC->Gspos("FMYL",1,"FSTR",0., posfp[1],0.,0,"ONLY");
431 gMC->Gspos("FMYL",2,"FSTR",0.,-posfp[1],0.,0,"ONLY");
432 // adding further 2 MYLAR Layers on FSTR volume
433 posfp[1] = khpcby*0.5+parfp[1];
434 gMC->Gspos("FMYL",3,"FSTR",0., posfp[1],0.,0,"ONLY");
435 gMC->Gspos("FMYL",4,"FSTR",0.,-posfp[1],0.,0,"ONLY");
438 //-- Graphite Layer definition
439 parfp[1] = khgraphy*0.5;
440 gMC->Gsvolu("FGRP","BOX",idtmed[502],parfp,3);
441 // positioning 2 Graphite Layers on FSTR volume
442 posfp[1] = -khstripy*0.5+khhony+khpcby+khmyly+parfp[1];
443 gMC->Gspos("FGRP",1,"FSTR",0., posfp[1],0.,0,"ONLY");
444 gMC->Gspos("FGRP",2,"FSTR",0.,-posfp[1],0.,0,"ONLY");
445 // adding further 2 Graphite Layers on FSTR volume
446 posfp[1] = khpcby*0.5+khmyly+parfp[1];
447 gMC->Gspos("FGRP",3,"FSTR",0., posfp[1],0.,0,"ONLY");
448 gMC->Gspos("FGRP",4,"FSTR",0.,-posfp[1],0.,0,"ONLY");
451 //-- Glass (EXT. +Semi INT.) Layer definition
452 parfp[1] = khglasseiy*0.5;
453 gMC->Gsvolu("FGLA","BOX",idtmed[514],parfp,3);
454 // positioning 2 Glass Layers on FSTR volume
455 posfp[1] = -khstripy*0.5+khhony+khpcby+khmyly+khgraphy+parfp[1];
456 gMC->Gspos("FGLA",1,"FSTR",0., posfp[1],0.,0,"ONLY");
457 gMC->Gspos("FGLA",2,"FSTR",0.,-posfp[1],0.,0,"ONLY");
458 // adding further 2 Glass Layers on FSTR volume
459 posfp[1] = khpcby*0.5+khmyly+khgraphy+parfp[1];
460 gMC->Gspos("FGLA",3,"FSTR",0., posfp[1],0.,0,"ONLY");
461 gMC->Gspos("FGLA",4,"FSTR",0.,-posfp[1],0.,0,"ONLY");
464 //-- Sensitive Mixture Layer definition
465 parfp[0] = klsensmx*0.5;
466 parfp[1] = khsensmy*0.5;
467 parfp[2] = kwsensmz*0.5;
468 gMC->Gsvolu("FSEN","BOX",idtmed[513],parfp,3);
469 gMC->Gsvolu("FNSE","BOX",idtmed[512],parfp,3);
470 // positioning 2 gas Layers on FSTR volume
471 // the upper is insensitive freon
472 // while the remaining is sensitive
473 posfp[1] = khpcby*0.5+khmyly+khgraphy+khglasseiy+parfp[1];
474 gMC->Gspos("FNSE",0,"FSTR", 0., posfp[1],0.,0,"ONLY");
475 gMC->Gspos("FSEN",0,"FSTR", 0.,-posfp[1],0.,0,"ONLY");
477 // dividing FSEN along z in knz=2 and along x in knx=48
478 gMC->Gsdvn("FSEZ","FSEN",knz,3);
479 gMC->Gsdvn("FSEX","FSEZ",knx,1);
481 // FPAD volume definition
482 parfp[0] = klpadx*0.5;
483 parfp[1] = khsensmy*0.5;
484 parfp[2] = kwpadz*0.5;
485 gMC->Gsvolu("FPAD","BOX",idtmed[513],parfp,3);
486 // positioning the FPAD volumes on previous divisions
487 gMC->Gspos("FPAD",0,"FSEX",0.,0.,0.,0,"ONLY");
489 //// Positioning the Strips (FSTR) in the FLT volumes /////
493 Float_t t = zFLTC+zFLTB+zFLTA*0.5+ 2*db;//Half Width of Barrel
495 Float_t gap = fGapA; //cm distance between the strip axis
501 ycoor = -14.5 + kspace ; //2 cm over front plate
503 AliMatrix (idrotm[0], 90., 0.,90.,90.,0., 90.);
504 gMC->Gspos("FSTR",j,"FLTA",0.,ycoor, 0.,idrotm[0],"ONLY");
506 printf("%f, St. %2i, Pl.3 ",ang*kRaddeg,i);
507 printf("y = %f, z = %f, zpos = %f \n",ycoor,zcoor,zpos);
511 Int_t upDown = -1; // upDown=-1 -> Upper strip
512 // upDown=+1 -> Lower strip
514 ang = atan(zcoor/radius);
516 AliMatrix (idrotm[nrot], 90., 0.,90.-ang,90.,-ang, 90.);
517 AliMatrix (idrotm[nrot+1],90.,180.,90.+ang,90., ang, 90.);
519 ycoor = -14.5+ kspace; //2 cm over front plate
520 ycoor += (1-(upDown+1)/2)*gap;
521 gMC->Gspos("FSTR",j ,"FLTA",0.,ycoor, zcoor,idrotm[nrot], "ONLY");
522 gMC->Gspos("FSTR",j+1,"FLTA",0.,ycoor,-zcoor,idrotm[nrot+1],"ONLY");
524 printf("%f, St. %2i, Pl.3 ",ang*kRaddeg,i);
525 printf("y = %f, z = %f, zpos = %f \n",ycoor,zcoor,zpos);
528 upDown*= -1; // Alternate strips
529 zcoor = zcoor-(zSenStrip/2)/TMath::Cos(ang)-
530 upDown*gap*TMath::Tan(ang)-
531 (zSenStrip/2)/TMath::Cos(ang);
532 } while (zcoor-(stripWidth/2)*TMath::Cos(ang)>-t+zFLTC+zFLTB+db*2);
534 zcoor = zcoor+(zSenStrip/2)/TMath::Cos(ang)+
535 upDown*gap*TMath::Tan(ang)+
536 (zSenStrip/2)/TMath::Cos(ang);
539 zcoor = zcoor-(zSenStrip/2)/TMath::Cos(ang)-
540 upDown*gap*TMath::Tan(ang)-
541 (zSenStrip/2)/TMath::Cos(ang);
543 ang = atan(zcoor/radius);
545 AliMatrix (idrotm[nrot], 90., 0.,90.-ang,90.,-ang, 90.);
546 AliMatrix (idrotm[nrot+1],90.,180.,90.+ang,90., ang, 90.);
549 ycoor = -14.5+ kspace; //2 cm over front plate
550 ycoor += (1-(upDown+1)/2)*gap;
551 gMC->Gspos("FSTR",j ,"FLTA",0.,ycoor, zcoor,idrotm[nrot], "ONLY");
552 gMC->Gspos("FSTR",j+1,"FLTA",0.,ycoor,-zcoor,idrotm[nrot+1],"ONLY");
554 printf("%f, St. %2i, Pl.3 ",ang*kRaddeg,i);
555 printf("y = %f, z = %f, zpos = %f \n",ycoor,zcoor,zpos);
557 ycoor = -hTof/2.+ kspace;//2 cm over front plate
564 Float_t deadRegion = 1.0;//cm
566 zpos = zcoor - (zSenStrip/2)/TMath::Cos(ang)-
567 upDown*gap*TMath::Tan(ang)-
568 (zSenStrip/2)/TMath::Cos(ang)-
569 deadRegion/TMath::Cos(ang);
571 ang = atan(zpos/radius);
573 AliMatrix (idrotm[nrot], 90., 0., 90.-ang,90.,ang, 270.);
575 ycoor = -hTof*0.5+ kspace ; //2 cm over front plate
576 ycoor += (1-(upDown+1)/2)*gap;
577 zcoor = zpos+(zFLTA*0.5+zFLTB*0.5+db); // Moves to the system of the modulus FLTB
578 gMC->Gspos("FSTR",i, "FLTB", 0., ycoor, zcoor,idrotm[nrot], "ONLY");
580 printf("%f, St. %2i, Pl.4 ",ang*kRaddeg,i);
581 printf("y = %f, z = %f, zpos = %f \n",ycoor,zcoor,zpos);
587 zpos = zpos - (zSenStrip/2)/TMath::Cos(ang)-
588 upDown*gap*TMath::Tan(ang)-
589 (zSenStrip/2)/TMath::Cos(ang);
590 ang = atan(zpos/radius);
592 AliMatrix (idrotm[nrot], 90., 0., 90.-ang,90.,ang, 270.);
594 ycoor = -hTof*0.5+ kspace ; //2 cm over front plate
595 ycoor += (1-(upDown+1)/2)*gap;
596 zcoor = zpos+(zFLTA*0.5+zFLTB*0.5+db); // Moves to the system of the modulus FLTB
597 gMC->Gspos("FSTR",i, "FLTB", 0., ycoor, zcoor,idrotm[nrot], "ONLY");
599 printf("%f, St. %2i, Pl.4 ",ang*kRaddeg,i);
600 printf("y = %f, z = %f, zpos = %f \n",ycoor,zcoor,zpos);
604 } while (TMath::Abs(ang*kRaddeg)<22.5);
605 //till we reach a tilting angle of 22.5 degrees
607 ycoor = -hTof*0.5+ kspace ; //2 cm over front plate
608 zpos = zpos - zSenStrip/TMath::Cos(ang);
611 ang = atan(zpos/radius);
613 AliMatrix (idrotm[nrot], 90., 0., 90.-ang,90.,ang, 270.);
615 zcoor = zpos+(zFLTB/2+zFLTA/2+db);
616 gMC->Gspos("FSTR",i, "FLTB", 0., ycoor, zcoor,idrotm[nrot], "ONLY");
617 zpos = zpos - zSenStrip/TMath::Cos(ang);
618 printf("%f, St. %2i, Pl.4 ",ang*kRaddeg,i);
619 printf("y = %f, z = %f, zpos = %f \n",ycoor,zcoor,zpos);
622 } while (zpos-stripWidth*0.5/TMath::Cos(ang)>-t+zFLTC+db);
626 zpos = zpos + zSenStrip/TMath::Cos(ang);
628 zpos = zpos - (zSenStrip/2)/TMath::Cos(ang)+
630 (zSenStrip/2)/TMath::Cos(ang);
634 ycoor= -hTof*0.5+kspace+gap;
638 ang = atan(zpos/radius);
640 AliMatrix (idrotm[nrot], 90., 0., 90.-ang,90.,ang, 270.);
642 zcoor = zpos+(zFLTC*0.5+zFLTB+zFLTA*0.5+db*2);
643 gMC->Gspos("FSTR",i, "FLTC", 0., ycoor, zcoor,idrotm[nrot], "ONLY");
645 printf("%f, St. %2i, Pl.5 ",ang*kRaddeg,i);
646 printf("y = %f, z = %f, zpos = %f \n",ycoor,zcoor,zpos);
648 zpos = zpos - zSenStrip/TMath::Cos(ang);
649 } while (zpos-stripWidth*TMath::Cos(ang)*0.5>-t);
652 ////////// Layers after strips /////////////////
653 // honeycomb (Polyethilene) Layer after (1.2cm)
655 Float_t overSpace = fOverSpc;//cm
659 par[2] = (zFLTA *0.5);
660 ycoor = -yFLT/2 + overSpace + par[1];
661 gMC->Gsvolu("FPEA", "BOX ", idtmed[503], par, 3); // Hony
662 gMC->Gspos ("FPEA", 0, "FLTA", 0., ycoor, 0., 0, "ONLY");
663 par[2] = (zFLTB *0.5);
664 gMC->Gsvolu("FPEB", "BOX ", idtmed[503], par, 3); // Hony
665 gMC->Gspos ("FPEB", 0, "FLTB", 0., ycoor, 0., 0, "ONLY");
666 par[2] = (zFLTC *0.5);
667 gMC->Gsvolu("FPEC", "BOX ", idtmed[503], par, 3); // Hony
668 gMC->Gspos ("FPEC", 0, "FLTC", 0., ycoor, 0., 0, "ONLY");
670 // Electronics (Cu) after
673 par[1] = 1.43*0.05*0.5; // 5% of X0
674 par[2] = (zFLTA *0.5);
676 gMC->Gsvolu("FECA", "BOX ", idtmed[501], par, 3); // Cu
677 gMC->Gspos ("FECA", 0, "FLTA", 0., ycoor, 0., 0, "ONLY");
678 par[2] = (zFLTB *0.5);
679 gMC->Gsvolu("FECB", "BOX ", idtmed[501], par, 3); // Cu
680 gMC->Gspos ("FECB", 0, "FLTB", 0., ycoor, 0., 0, "ONLY");
681 par[2] = (zFLTC *0.5);
682 gMC->Gsvolu("FECC", "BOX ", idtmed[501], par, 3); // Cu
683 gMC->Gspos ("FECC", 0, "FLTC", 0., ycoor, 0., 0, "ONLY");
685 // cooling WAter after
688 par[1] = 36.1*0.02*0.5; // 2% of X0
689 par[2] = (zFLTA *0.5);
691 gMC->Gsvolu("FWAA", "BOX ", idtmed[515], par, 3); // Water
692 gMC->Gspos ("FWAA", 0, "FLTA", 0., ycoor, 0., 0, "ONLY");
693 par[2] = (zFLTB *0.5);
694 gMC->Gsvolu("FWAB", "BOX ", idtmed[515], par, 3); // Water
695 gMC->Gspos ("FWAB", 0, "FLTB", 0., ycoor, 0., 0, "ONLY");
696 par[2] = (zFLTC *0.5);
697 gMC->Gsvolu("FWAC", "BOX ", idtmed[515], par, 3); // Water
698 gMC->Gspos ("FWAC", 0, "FLTC", 0., ycoor, 0., 0, "ONLY");
703 par[1] = (yFLT/2-ycoor-0.2)*0.5; // Aluminum layer considered (0.2 cm)
704 par[2] = (zFLTA *0.5);
706 gMC->Gsvolu("FAIA", "BOX ", idtmed[500], par, 3); // Air
707 gMC->Gspos ("FAIA", 0, "FLTA", 0., ycoor, 0., 0, "ONLY");
708 par[2] = (zFLTB *0.5);
709 gMC->Gsvolu("FAIB", "BOX ", idtmed[500], par, 3); // Air
710 gMC->Gspos ("FAIB", 0, "FLTB", 0., ycoor, 0., 0, "ONLY");
711 par[2] = (zFLTC *0.5);
712 gMC->Gsvolu("FAIC", "BOX ", idtmed[500], par, 3); // Air
713 gMC->Gspos ("FAIC", 0, "FLTC", 0., ycoor, 0., 0, "ONLY");
715 //Back Plate honycomb (2cm)
719 ycoor = yFLT/2 - par[1];
720 gMC->Gsvolu("FBPA", "BOX ", idtmed[503], par, 3); // Hony
721 gMC->Gspos ("FBPA", 0, "FLTA", 0., ycoor, 0., 0, "ONLY");
722 gMC->Gsvolu("FBPB", "BOX ", idtmed[503], par, 3); // Hony
723 gMC->Gspos ("FBPB", 0, "FLTB", 0., ycoor, 0., 0, "ONLY");
724 gMC->Gsvolu("FBPC", "BOX ", idtmed[503], par, 3); // Hony
725 gMC->Gspos ("FBPC", 0, "FLTC", 0., ycoor, 0., 0, "ONLY");
729 //_____________________________________________________________________________
730 void AliTOFv1::DrawModule() const
733 // Draw a shaded view of the Time Of Flight version 1
735 // Set everything unseen
736 gMC->Gsatt("*", "seen", -1);
738 // Set ALIC mother transparent
739 gMC->Gsatt("ALIC","SEEN",0);
741 // Set the volumes visible
742 gMC->Gsatt("ALIC","SEEN",0);
744 gMC->Gsatt("FTOA","SEEN",1);
745 gMC->Gsatt("FTOB","SEEN",1);
746 gMC->Gsatt("FTOC","SEEN",1);
747 gMC->Gsatt("FLTA","SEEN",1);
748 gMC->Gsatt("FLTB","SEEN",1);
749 gMC->Gsatt("FLTC","SEEN",1);
750 gMC->Gsatt("FPLA","SEEN",1);
751 gMC->Gsatt("FPLB","SEEN",1);
752 gMC->Gsatt("FPLC","SEEN",1);
753 gMC->Gsatt("FSTR","SEEN",1);
754 gMC->Gsatt("FPEA","SEEN",1);
755 gMC->Gsatt("FPEB","SEEN",1);
756 gMC->Gsatt("FPEC","SEEN",1);
758 gMC->Gsatt("FLZ1","SEEN",0);
759 gMC->Gsatt("FLZ2","SEEN",0);
760 gMC->Gsatt("FLZ3","SEEN",0);
761 gMC->Gsatt("FLX1","SEEN",0);
762 gMC->Gsatt("FLX2","SEEN",0);
763 gMC->Gsatt("FLX3","SEEN",0);
764 gMC->Gsatt("FPAD","SEEN",0);
766 gMC->Gdopt("hide", "on");
767 gMC->Gdopt("shad", "on");
768 gMC->Gsatt("*", "fill", 7);
769 gMC->SetClipBox(".");
770 gMC->SetClipBox("*", 0, 1000, -1000, 1000, -1000, 1000);
772 gMC->Gdraw("alic", 40, 30, 0, 12, 9.5, .02, .02);
773 gMC->Gdhead(1111, "Time Of Flight");
774 gMC->Gdman(18, 4, "MAN");
775 gMC->Gdopt("hide","off");
777 //_____________________________________________________________________________
778 void AliTOFv1::DrawDetectorModules()
781 // Draw a shaded view of the TOF detector version 1
784 AliMC* pMC = AliMC::GetMC();
786 //Set ALIC mother transparent
787 pMC->Gsatt("ALIC","SEEN",0);
790 //Set volumes visible
793 // Level 1 for TOF volumes
794 gMC->Gsatt("B077","seen",0);
797 //==========> Level 2
799 gMC->Gsatt("B076","seen",-1); // all B076 sub-levels skipped -
800 gMC->Gsatt("B071","seen",0);
801 gMC->Gsatt("B074","seen",0);
802 gMC->Gsatt("B075","seen",0);
803 gMC->Gsatt("B080","seen",0); // B080 does not has sub-level
807 gMC->Gsatt("B063","seen",-1); // all B063 sub-levels skipped -
808 gMC->Gsatt("B065","seen",-1); // all B065 sub-levels skipped -
809 gMC->Gsatt("B067","seen",-1); // all B067 sub-levels skipped -
810 gMC->Gsatt("B069","seen",-1); // all B069 sub-levels skipped -
811 gMC->Gsatt("B056","seen",0); // B056 does not has sub-levels -
812 gMC->Gsatt("B059","seen",-1); // all B059 sub-levels skipped -
813 gMC->Gsatt("B072","seen",-1); // all B072 sub-levels skipped -
814 gMC->Gsatt("BTR1","seen",0); // BTR1 do not have sub-levels -
815 gMC->Gsatt("BTO1","seen",0);
819 gMC->Gsatt("BTR2","seen",0); // BTR2 does not has sub-levels -
820 gMC->Gsatt("BTO2","seen",0);
823 gMC->Gsatt("BTR3","seen",0); // BTR3 do not have sub-levels -
824 gMC->Gsatt("BTO3","seen",0);
826 // ==================> Level 3
827 // Level 3 of B071 / Level 2 of BTO1
828 gMC->Gsatt("FTOC","seen",-2);
829 gMC->Gsatt("FTOB","seen",-2);
830 gMC->Gsatt("FTOA","seen",-2);
832 // Level 3 of B074 / Level 2 of BTO2
833 // -> cfr previous settings
835 // Level 3 of B075 / Level 2 of BTO3
836 // -> cfr previous settings
838 gMC->Gdopt("hide","on");
839 gMC->Gdopt("shad","on");
840 gMC->Gsatt("*", "fill", 5);
841 gMC->SetClipBox(".");
842 gMC->SetClipBox("*", 0, 1000, 0, 1000, 0, 1000);
844 gMC->Gdraw("alic", 45, 40, 0, 10, 10, .015, .015);
845 gMC->Gdhead(1111,"TOF detector V1");
846 gMC->Gdman(18, 4, "MAN");
847 gMC->Gdopt("hide","off");
850 //_____________________________________________________________________________
851 void AliTOFv1::DrawDetectorStrips()
854 // Draw a shaded view of the TOF strips for version 1
857 AliMC* pMC = AliMC::GetMC();
859 //Set ALIC mother transparent
860 pMC->Gsatt("ALIC","SEEN",0);
863 //Set volumes visible
865 // Level 1 for TOF volumes
866 gMC->Gsatt("B077","seen",0);
868 //==========> Level 2
870 gMC->Gsatt("B076","seen",-1); // all B076 sub-levels skipped -
871 gMC->Gsatt("B071","seen",0);
872 gMC->Gsatt("B074","seen",0);
873 gMC->Gsatt("B075","seen",0);
874 gMC->Gsatt("B080","seen",0); // B080 does not has sub-level
877 gMC->Gsatt("B063","seen",-1); // all B063 sub-levels skipped -
878 gMC->Gsatt("B065","seen",-1); // all B065 sub-levels skipped -
879 gMC->Gsatt("B067","seen",-1); // all B067 sub-levels skipped -
880 gMC->Gsatt("B069","seen",-1); // all B069 sub-levels skipped -
881 gMC->Gsatt("B056","seen",0); // B056 does not has sub-levels -
882 gMC->Gsatt("B059","seen",-1); // all B059 sub-levels skipped -
883 gMC->Gsatt("B072","seen",-1); // all B072 sub-levels skipped -
884 gMC->Gsatt("BTR1","seen",0); // BTR1 do not have sub-levels -
885 gMC->Gsatt("BTO1","seen",0);
887 // ==================> Level 3
888 // Level 3 of B071 / Level 2 of BTO1
889 gMC->Gsatt("FTOC","seen",0);
890 gMC->Gsatt("FTOB","seen",0);
891 gMC->Gsatt("FTOA","seen",0);
893 // Level 3 of B074 / Level 2 of BTO2
894 // -> cfr previous settings
896 // Level 3 of B075 / Level 2 of BTO3
897 // -> cfr previous settings
900 // ==========================> Level 4
901 // Level 4 of B071 / Level 3 of BTO1 / Level 2 of FTOC
902 gMC->Gsatt("FLTC","seen",0);
903 // Level 4 of B071 / Level 3 of BTO1 / Level 2 of FTOB
904 gMC->Gsatt("FLTB","seen",0);
905 // Level 4 of B071 / Level 3 of BTO1 / Level 2 of FTOA
906 gMC->Gsatt("FLTA","seen",0);
908 // Level 4 of B074 / Level 3 of BTO2 / Level 2 of FTOC
909 // -> cfr previous settings
910 // Level 4 of B074 / Level 3 of BTO2 / Level 2 of FTOB
911 // -> cfr previous settings
913 // Level 4 of B075 / Level 3 of BTO3 / Level 2 of FTOC
914 // -> cfr previous settings
916 //======================================> Level 5
917 // Level 5 of B071 / Level 4 of BTO1 / Level 3 of FTOC / Level 2 of FLTC
918 gMC->Gsatt("FALC","seen",0); // no children for FALC
919 gMC->Gsatt("FSTR","seen",-2);
920 gMC->Gsatt("FPEC","seen",0); // no children for FPEC
921 gMC->Gsatt("FECC","seen",0); // no children for FECC
922 gMC->Gsatt("FWAC","seen",0); // no children for FWAC
923 gMC->Gsatt("FAIC","seen",0); // no children for FAIC
925 // Level 5 of B071 / Level 4 of BTO1 / Level 3 of FTOB / Level 2 of FLTB
926 gMC->Gsatt("FALB","seen",0); // no children for FALB
927 //--> gMC->Gsatt("FSTR","seen",-2);
930 // -> cfr previous settings
931 gMC->Gsatt("FPEB","seen",0); // no children for FPEB
932 gMC->Gsatt("FECB","seen",0); // no children for FECB
933 gMC->Gsatt("FWAB","seen",0); // no children for FWAB
934 gMC->Gsatt("FAIB","seen",0); // no children for FAIB
936 // Level 5 of B071 / Level 4 of BTO1 / Level 3 of FTOA / Level 2 of FLTA
937 gMC->Gsatt("FALA","seen",0); // no children for FALB
938 //--> gMC->Gsatt("FSTR","seen",-2);
939 // -> cfr previous settings
940 gMC->Gsatt("FPEA","seen",0); // no children for FPEA
941 gMC->Gsatt("FECA","seen",0); // no children for FECA
942 gMC->Gsatt("FWAA","seen",0); // no children for FWAA
943 gMC->Gsatt("FAIA","seen",0); // no children for FAIA
946 gMC->Gsatt("BTR2","seen",0); // BTR2 does not has sub-levels -
947 gMC->Gsatt("BTO2","seen",0);
950 gMC->Gsatt("BTR3","seen",0); // BTR3 do not have sub-levels -
951 gMC->Gsatt("BTO3","seen",0);
953 // for others Level 5, cfr. previous settings
955 gMC->Gdopt("hide","on");
956 gMC->Gdopt("shad","on");
957 gMC->Gsatt("*", "fill", 5);
958 gMC->SetClipBox(".");
959 gMC->SetClipBox("*", 0, 1000, 0, 1000, 0, 1000);
961 gMC->Gdraw("alic", 45, 40, 0, 10, 10, .015, .015);
962 gMC->Gdhead(1111,"TOF Strips V1");
963 gMC->Gdman(18, 4, "MAN");
964 gMC->Gdopt("hide","off");
967 //_____________________________________________________________________________
968 void AliTOFv1::CreateMaterials()
971 // Define materials for the Time Of Flight
973 AliTOF::CreateMaterials();
976 //_____________________________________________________________________________
977 void AliTOFv1::Init()
980 // Initialise the detector after the geometry has been defined
982 printf("**************************************"
984 "**************************************\n");
985 printf("\n Version 1 of TOF initialing, "
986 "TOF with holes for PHOS detector\n");
990 fIdFTOA = gMC->VolId("FTOA");
991 fIdFTOB = gMC->VolId("FTOB");
992 fIdFTOC = gMC->VolId("FTOC");
993 fIdFLTA = gMC->VolId("FLTA");
994 fIdFLTB = gMC->VolId("FLTB");
995 fIdFLTC = gMC->VolId("FLTC");
997 printf("**************************************"
999 "**************************************\n");
1002 //_____________________________________________________________________________
1003 void AliTOFv1::StepManager()
1006 // Procedure called at each step in the Time Of Flight
1008 TLorentzVector mom, pos;
1009 Float_t xm[3],pm[3],xpad[3],ppad[3];
1010 Float_t hits[13],phi,phid,z;
1012 Int_t sector, plate, padx, padz, strip;
1013 Int_t copy, padzid, padxid, stripid, i;
1014 Int_t *idtmed = fIdtmed->GetArray()-499;
1015 Float_t incidenceAngle;
1017 if(gMC->GetMedium()==idtmed[513] &&
1018 gMC->IsTrackEntering() && gMC->TrackCharge()
1019 && gMC->CurrentVolID(copy)==fIdSens)
1021 // getting information about hit volumes
1023 padzid=gMC->CurrentVolOffID(2,copy);
1026 padxid=gMC->CurrentVolOffID(1,copy);
1029 stripid=gMC->CurrentVolOffID(4,copy);
1032 gMC->TrackPosition(pos);
1033 gMC->TrackMomentum(mom);
1035 // Double_t NormPos=1./pos.Rho();
1036 Double_t normMom=1./mom.Rho();
1038 // getting the cohordinates in pad ref system
1039 xm[0] = (Float_t)pos.X();
1040 xm[1] = (Float_t)pos.Y();
1041 xm[2] = (Float_t)pos.Z();
1043 pm[0] = (Float_t)mom.X()*normMom;
1044 pm[1] = (Float_t)mom.Y()*normMom;
1045 pm[2] = (Float_t)mom.Z()*normMom;
1047 gMC->Gmtod(xm,xpad,1);
1048 gMC->Gmtod(pm,ppad,2);
1049 if(ppad[1]>1.) ppad[1]=1.;
1050 incidenceAngle = TMath::ACos(ppad[1])*kRaddeg;
1055 if (TMath::Abs(z) <= fZlenA*0.5) plate = 3;
1056 if (z < (fZlenA*0.5+fZlenB) &&
1057 z > fZlenA*0.5) plate = 4;
1058 if (z >-(fZlenA*0.5+fZlenB) &&
1059 z < -fZlenA*0.5) plate = 2;
1060 if (z > (fZlenA*0.5+fZlenB)) plate = 5;
1061 if (z <-(fZlenA*0.5+fZlenB)) plate = 1;
1064 phid = phi*kRaddeg+180.;
1065 sector = Int_t (phid/20.);
1073 hits[6] = mom.Rho();
1078 hits[11]= incidenceAngle;
1079 hits[12]= gMC->Edep();
1087 AddHit(gAlice->CurrentTrack(),vol, hits);