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 1.9 2001/05/04 10:09:48 vicinanz
31 Major upgrades to the strip structure
33 Revision 1.8 2000/12/04 08:48:20 alibrary
34 Fixing problems in the HEAD
36 Revision 1.7 2000/10/02 21:28:17 fca
37 Removal of useless dependecies via forward declarations
39 Revision 1.6 2000/05/10 16:52:18 vicinanz
40 New TOF version with holes for PHOS/RICH
42 Revision 1.4.2.1 2000/05/10 09:37:16 vicinanz
43 New version with Holes for PHOS/RICH
45 Revision 1.14 1999/11/05 22:39:06 fca
48 Revision 1.13 1999/11/02 11:26:39 fca
49 added stdlib.h for exit
51 Revision 1.12 1999/11/01 20:41:57 fca
52 Added protections against using the wrong version of FRAME
54 Revision 1.11 1999/10/22 08:04:14 fca
55 Correct improper use of negative parameters
57 Revision 1.10 1999/10/16 19:30:06 fca
58 Corrected Rotation Matrix and CVS log
60 Revision 1.9 1999/10/15 15:35:20 fca
61 New version for frame1099 with and without holes
63 Revision 1.8 1999/09/29 09:24:33 fca
64 Introduction of the Copyright and cvs Log
68 ///////////////////////////////////////////////////////////////////////////////
70 // Time Of Flight: design of C.Williams //
72 // This class contains the functions for version 0 of the Time Of Flight //
75 // VERSION WITH 5 MODULES AND TILTED STRIPS
76 // NO HITS DEFINED BY DEFAULT FOR THIS VERSION
77 // FULL COVERAGE VERSION
84 // University of Salerno - Italy
87 // University of Bologna - Italy
92 <img src="picts/AliTOFv0Class.gif">
96 ///////////////////////////////////////////////////////////////////////////////
101 #include "AliTOFv0.h"
103 #include "TGeometry.h"
105 #include <TLorentzVector.h>
109 #include "AliConst.h"
114 //_____________________________________________________________________________
118 // Default constructor
122 //_____________________________________________________________________________
123 AliTOFv0::AliTOFv0(const char *name, const char *title)
127 // Standard constructor
130 // Check that FRAME is there otherwise we have no place where to
132 AliModule* frame=gAlice->GetModule("FRAME");
134 Error("Ctor","TOF needs FRAME to be present\n");
137 if(frame->IsVersion()!=1) {
138 Error("Ctor","FRAME version 1 needed with this version of TOF\n");
144 //____________________________________________________________________________
146 void AliTOFv0::BuildGeometry()
149 // Build TOF ROOT geometry for the ALICE event display
152 const int kColorTOF = 27;
155 top = gAlice->GetGeometry()->GetNode("alice");
157 // Position the different copies
158 const Float_t krTof =(fRmax+fRmin)/2;
159 const Float_t khTof = fRmax-fRmin;
160 const Int_t kNTof = fNTof;
161 const Float_t kPi = TMath::Pi();
162 const Float_t kangle = 2*kPi/kNTof;
165 // Define TOF basic volume
167 char nodeName0[7], nodeName1[7], nodeName2[7];
168 char nodeName3[7], nodeName4[7], rotMatNum[7];
170 new TBRIK("S_TOF_C","TOF box","void",
171 120*0.5,khTof*0.5,fZlenC*0.5);
172 new TBRIK("S_TOF_B","TOF box","void",
173 120*0.5,khTof*0.5,fZlenB*0.5);
174 new TBRIK("S_TOF_A","TOF box","void",
175 120*0.5,khTof*0.5,fZlenA*0.5);
177 for (Int_t nodeNum=1;nodeNum<19;nodeNum++){
180 sprintf(rotMatNum,"rot50%i",nodeNum);
181 sprintf(nodeName0,"FTO00%i",nodeNum);
182 sprintf(nodeName1,"FTO10%i",nodeNum);
183 sprintf(nodeName2,"FTO20%i",nodeNum);
184 sprintf(nodeName3,"FTO30%i",nodeNum);
185 sprintf(nodeName4,"FTO40%i",nodeNum);
188 sprintf(rotMatNum,"rot5%i",nodeNum);
189 sprintf(nodeName0,"FTO0%i",nodeNum);
190 sprintf(nodeName1,"FTO1%i",nodeNum);
191 sprintf(nodeName2,"FTO2%i",nodeNum);
192 sprintf(nodeName3,"FTO3%i",nodeNum);
193 sprintf(nodeName4,"FTO4%i",nodeNum);
196 new TRotMatrix(rotMatNum,rotMatNum,90,-20*nodeNum,90,90-20*nodeNum,0,0);
197 ang = (4.5-nodeNum) * kangle;
200 node = new TNode(nodeName0,nodeName0,"S_TOF_C",krTof*TMath::Cos(ang),krTof*TMath::Sin(ang),299.15,rotMatNum);
201 node->SetLineColor(kColorTOF);
205 node = new TNode(nodeName1,nodeName1,"S_TOF_C",krTof*TMath::Cos(ang),krTof*TMath::Sin(ang),-299.15,rotMatNum);
206 node->SetLineColor(kColorTOF);
210 node = new TNode(nodeName2,nodeName2,"S_TOF_B",krTof*TMath::Cos(ang),krTof*TMath::Sin(ang),146.45,rotMatNum);
211 node->SetLineColor(kColorTOF);
215 node = new TNode(nodeName3,nodeName3,"S_TOF_B",krTof*TMath::Cos(ang),krTof*TMath::Sin(ang),-146.45,rotMatNum);
216 node->SetLineColor(kColorTOF);
220 node = new TNode(nodeName4,nodeName4,"S_TOF_A",krTof*TMath::Cos(ang),krTof*TMath::Sin(ang),0.,rotMatNum);
221 node->SetLineColor(kColorTOF);
223 } // end loop on nodeNum
228 //_____________________________________________________________________________
229 void AliTOFv0::CreateGeometry()
232 // Create geometry for Time Of Flight version 0
236 <img src="picts/AliTOFv0.gif">
240 // Creates common geometry
242 AliTOF::CreateGeometry();
245 //_____________________________________________________________________________
246 void AliTOFv0::TOFpc(Float_t xtof, Float_t ytof, Float_t zlenC,
247 Float_t zlenB, Float_t zlenA, Float_t ztof0)
250 // Definition of the Time Of Fligh Resistive Plate Chambers
251 // xFLT, yFLT, zFLT - sizes of TOF modules (large)
253 Float_t ycoor, zcoor;
255 Int_t *idtmed = fIdtmed->GetArray()-499;
258 Float_t hTof = fRmax-fRmin;
260 Float_t radius = fRmin+2.;//cm
264 par[2] = zlenC * 0.5;
265 gMC->Gsvolu("FTOC", "BOX ", idtmed[506], par, 3);
266 par[2] = zlenB * 0.5;
267 gMC->Gsvolu("FTOB", "BOX ", idtmed[506], par, 3);
268 par[2] = zlenA * 0.5;
269 gMC->Gsvolu("FTOA", "BOX ", idtmed[506], par, 3);
272 // Positioning of modules
274 Float_t zcor1 = ztof0 - zlenC*0.5;
275 Float_t zcor2 = ztof0 - zlenC - zlenB*0.5;
278 AliMatrix(idrotm[0], 90., 0., 0., 0., 90,-90.);
279 AliMatrix(idrotm[1], 90.,180., 0., 0., 90, 90.);
280 gMC->Gspos("FTOC", 1, "BTO1", 0, zcor1, 0, idrotm[0], "ONLY");
281 gMC->Gspos("FTOC", 2, "BTO1", 0, -zcor1, 0, idrotm[1], "ONLY");
282 gMC->Gspos("FTOC", 1, "BTO2", 0, zcor1, 0, idrotm[0], "ONLY");
283 gMC->Gspos("FTOC", 2, "BTO2", 0, -zcor1, 0, idrotm[1], "ONLY");
284 gMC->Gspos("FTOC", 1, "BTO3", 0, zcor1, 0, idrotm[0], "ONLY");
285 gMC->Gspos("FTOC", 2, "BTO3", 0, -zcor1, 0, idrotm[1], "ONLY");
287 gMC->Gspos("FTOB", 1, "BTO1", 0, zcor2, 0, idrotm[0], "ONLY");
288 gMC->Gspos("FTOB", 2, "BTO1", 0, -zcor2, 0, idrotm[1], "ONLY");
289 gMC->Gspos("FTOB", 1, "BTO2", 0, zcor2, 0, idrotm[0], "ONLY");
290 gMC->Gspos("FTOB", 2, "BTO2", 0, -zcor2, 0, idrotm[1], "ONLY");
291 gMC->Gspos("FTOB", 1, "BTO3", 0, zcor2, 0, idrotm[0], "ONLY");
292 gMC->Gspos("FTOB", 2, "BTO3", 0, -zcor2, 0, idrotm[1], "ONLY");
294 gMC->Gspos("FTOA", 0, "BTO1", 0, zcor3, 0, idrotm[0], "ONLY");
295 gMC->Gspos("FTOA", 0, "BTO2", 0, zcor3, 0, idrotm[0], "ONLY");
296 gMC->Gspos("FTOA", 0, "BTO3", 0, zcor3, 0, idrotm[0], "ONLY");
298 Float_t db = 0.5;//cm
299 Float_t xFLT, xFST, yFLT, zFLTA, zFLTB, zFLTC;
307 xFST = xFLT-fDeadBndX*2;//cm
309 // Sizes of MRPC pads
311 Float_t yPad = 0.505;//cm
313 // Large not sensitive volumes with Insensitive Freon
317 cout <<"************************* TOF geometry **************************"<<endl;
319 par[2] = (zFLTA *0.5);
320 gMC->Gsvolu("FLTA", "BOX ", idtmed[512], par, 3); // Insensitive Freon
321 gMC->Gspos ("FLTA", 0, "FTOA", 0., 0., 0., 0, "ONLY");
323 par[2] = (zFLTB * 0.5);
324 gMC->Gsvolu("FLTB", "BOX ", idtmed[512], par, 3); // Insensitive Freon
325 gMC->Gspos ("FLTB", 0, "FTOB", 0., 0., 0., 0, "ONLY");
327 par[2] = (zFLTC * 0.5);
328 gMC->Gsvolu("FLTC", "BOX ", idtmed[512], par, 3); // Insensitive Freon
329 gMC->Gspos ("FLTC", 0, "FTOC", 0., 0., 0., 0, "ONLY");
331 ////////// Layers of Aluminum before and after detector //////////
332 ////////// Aluminum Box for Modules (2.0 mm thickness) /////////
333 ////////// lateral walls not simulated
336 ycoor = -yFLT/2 + par[1];
337 par[2] = (zFLTA *0.5);
338 gMC->Gsvolu("FALA", "BOX ", idtmed[508], par, 3); // Alluminium
339 gMC->Gspos ("FALA", 1, "FLTA", 0., ycoor, 0., 0, "ONLY");
340 gMC->Gspos ("FALA", 2, "FLTA", 0.,-ycoor, 0., 0, "ONLY");
341 par[2] = (zFLTB *0.5);
342 gMC->Gsvolu("FALB", "BOX ", idtmed[508], par, 3); // Alluminium
343 gMC->Gspos ("FALB", 1, "FLTB", 0., ycoor, 0., 0, "ONLY");
344 gMC->Gspos ("FALB", 2, "FLTB", 0.,-ycoor, 0., 0, "ONLY");
345 par[2] = (zFLTC *0.5);
346 gMC->Gsvolu("FALC", "BOX ", idtmed[508], par, 3); // Alluminium
347 gMC->Gspos ("FALC", 1, "FLTC", 0., ycoor, 0., 0, "ONLY");
348 gMC->Gspos ("FALC", 2, "FLTC", 0.,-ycoor, 0., 0, "ONLY");
350 ///////////////// Detector itself //////////////////////
351 const Float_t kdeadBound = fDeadBndZ; //cm non-sensitive between the pad edge
352 //and the boundary of the strip
353 const Int_t knx = fNpadX; // number of pads along x
354 const Int_t knz = fNpadZ; // number of pads along z
355 const Float_t kspace = fSpace; //cm distance from the front plate of the box
357 Float_t zSenStrip = fZpad*fNpadZ;//cm
358 Float_t stripWidth = zSenStrip + 2*kdeadBound;
361 par[2] = stripWidth*0.5;
363 // new description for strip volume -double stack strip-
364 // -- all constants are expressed in cm
365 // heigth of different layers
366 const Float_t khhony = 1. ; // heigth of HONY Layer
367 const Float_t khpcby = 0.15 ; // heigth of PCB Layer
368 const Float_t khmyly = 0.035 ; // heigth of MYLAR Layer
369 const Float_t khgraphy = 0.02 ; // heigth of GRAPHITE Layer
370 const Float_t khglasseiy = 0.17; // 0.6 Ext. Glass + 1.1 i.e. (Int. Glass/2) (mm)
371 const Float_t khsensmy = 0.11 ; // heigth of Sensitive Freon Mixture
372 const Float_t kwsensmz = 2*3.5 ; // cm
373 const Float_t klsensmx = 48*2.5; // cm
374 const Float_t kwpadz = 3.5; // cm z dimension of the FPAD volume
375 const Float_t klpadx = 2.5; // cm x dimension of the FPAD volume
377 // heigth of the FSTR Volume (the strip volume)
378 const Float_t khstripy = 2*khhony+3*khpcby+4*(khmyly+khgraphy+khglasseiy)+2*khsensmy;
379 // width of the FSTR Volume (the strip volume)
380 const Float_t kwstripz = 10.;
381 // length of the FSTR Volume (the strip volume)
382 const Float_t klstripx = 122.;
384 Float_t parfp[3]={klstripx*0.5,khstripy*0.5,kwstripz*0.5};
385 // coordinates of the strip center in the strip reference frame; used for positioning
386 // internal strip volumes
387 Float_t posfp[3]={0.,0.,0.};
390 // FSTR volume definition and filling this volume with non sensitive Gas Mixture
391 gMC->Gsvolu("FSTR","BOX",idtmed[512],parfp,3);
392 //-- HONY Layer definition
394 parfp[1] = khhony*0.5;
396 gMC->Gsvolu("FHON","BOX",idtmed[503],parfp,3);
397 // positioning 2 HONY Layers on FSTR volume
399 posfp[1]=-khstripy*0.5+parfp[1];
400 gMC->Gspos("FHON",1,"FSTR",0., posfp[1],0.,0,"ONLY");
401 gMC->Gspos("FHON",2,"FSTR",0.,-posfp[1],0.,0,"ONLY");
403 //-- PCB Layer definition
404 parfp[1] = khpcby*0.5;
405 gMC->Gsvolu("FPCB","BOX",idtmed[504],parfp,3);
406 // positioning 2 PCB Layers on FSTR volume
407 posfp[1]=-khstripy*0.5+khhony+parfp[1];
408 gMC->Gspos("FPCB",1,"FSTR",0., posfp[1],0.,0,"ONLY");
409 gMC->Gspos("FPCB",2,"FSTR",0.,-posfp[1],0.,0,"ONLY");
410 // positioning the central PCB layer
411 gMC->Gspos("FPCB",3,"FSTR",0.,0.,0.,0,"ONLY");
415 //-- MYLAR Layer definition
416 parfp[1] = khmyly*0.5;
417 gMC->Gsvolu("FMYL","BOX",idtmed[511],parfp,3);
418 // positioning 2 MYLAR Layers on FSTR volume
419 posfp[1] = -khstripy*0.5+khhony+khpcby+parfp[1];
420 gMC->Gspos("FMYL",1,"FSTR",0., posfp[1],0.,0,"ONLY");
421 gMC->Gspos("FMYL",2,"FSTR",0.,-posfp[1],0.,0,"ONLY");
422 // adding further 2 MYLAR Layers on FSTR volume
423 posfp[1] = khpcby*0.5+parfp[1];
424 gMC->Gspos("FMYL",3,"FSTR",0., posfp[1],0.,0,"ONLY");
425 gMC->Gspos("FMYL",4,"FSTR",0.,-posfp[1],0.,0,"ONLY");
428 //-- Graphite Layer definition
429 parfp[1] = khgraphy*0.5;
430 gMC->Gsvolu("FGRP","BOX",idtmed[502],parfp,3);
431 // positioning 2 Graphite Layers on FSTR volume
432 posfp[1] = -khstripy*0.5+khhony+khpcby+khmyly+parfp[1];
433 gMC->Gspos("FGRP",1,"FSTR",0., posfp[1],0.,0,"ONLY");
434 gMC->Gspos("FGRP",2,"FSTR",0.,-posfp[1],0.,0,"ONLY");
435 // adding further 2 Graphite Layers on FSTR volume
436 posfp[1] = khpcby*0.5+khmyly+parfp[1];
437 gMC->Gspos("FGRP",3,"FSTR",0., posfp[1],0.,0,"ONLY");
438 gMC->Gspos("FGRP",4,"FSTR",0.,-posfp[1],0.,0,"ONLY");
441 //-- Glass (EXT. +Semi INT.) Layer definition
442 parfp[1] = khglasseiy*0.5;
443 gMC->Gsvolu("FGLA","BOX",idtmed[514],parfp,3);
444 // positioning 2 Glass Layers on FSTR volume
445 posfp[1] = -khstripy*0.5+khhony+khpcby+khmyly+khgraphy+parfp[1];
446 gMC->Gspos("FGLA",1,"FSTR",0., posfp[1],0.,0,"ONLY");
447 gMC->Gspos("FGLA",2,"FSTR",0.,-posfp[1],0.,0,"ONLY");
448 // adding further 2 Glass Layers on FSTR volume
449 posfp[1] = khpcby*0.5+khmyly+khgraphy+parfp[1];
450 gMC->Gspos("FGLA",3,"FSTR",0., posfp[1],0.,0,"ONLY");
451 gMC->Gspos("FGLA",4,"FSTR",0.,-posfp[1],0.,0,"ONLY");
454 //-- Sensitive Mixture Layer definition
455 parfp[0] = klsensmx*0.5;
456 parfp[1] = khsensmy*0.5;
457 parfp[2] = kwsensmz*0.5;
458 gMC->Gsvolu("FSEN","BOX",idtmed[513],parfp,3);
459 gMC->Gsvolu("FNSE","BOX",idtmed[512],parfp,3);
460 // positioning 2 gas Layers on FSTR volume
461 // the upper is insensitive freon
462 // while the remaining is sensitive
463 posfp[1] = khpcby*0.5+khmyly+khgraphy+khglasseiy+parfp[1];
464 gMC->Gspos("FNSE",0,"FSTR", 0., posfp[1],0.,0,"ONLY");
465 gMC->Gspos("FSEN",0,"FSTR", 0.,-posfp[1],0.,0,"ONLY");
467 // dividing FSEN along z in knz=2 and along x in knx=48
468 gMC->Gsdvn("FSEZ","FSEN",knz,3);
469 gMC->Gsdvn("FSEX","FSEZ",knx,1);
471 // FPAD volume definition
472 parfp[0] = klpadx*0.5;
473 parfp[1] = khsensmy*0.5;
474 parfp[2] = kwpadz*0.5;
475 gMC->Gsvolu("FPAD","BOX",idtmed[513],parfp,3);
476 // positioning the FPAD volumes on previous divisions
477 gMC->Gspos("FPAD",0,"FSEX",0.,0.,0.,0,"ONLY");
479 //// Positioning the Strips (FSTR) in the FLT volumes /////
483 Float_t t = zFLTC+zFLTB+zFLTA*0.5+ 2*db;//Half Width of Barrel
485 Float_t gap = fGapA+0.5; //cm updated distance between the strip axis
491 ycoor = -14.5 + kspace ; //2 cm over front plate
493 AliMatrix (idrotm[0], 90., 0.,90.,90.,0., 90.);
494 gMC->Gspos("FSTR",j,"FLTA",0.,ycoor, 0.,idrotm[0],"ONLY");
496 printf("%f, St. %2i, Pl.3 ",ang*kRaddeg,i);
497 printf("y = %f, z = %f, zpos = %f \n",ycoor,zcoor,zpos);
501 Int_t upDown = -1; // upDown=-1 -> Upper strip
502 // upDown=+1 -> Lower strip
504 ang = atan(zcoor/radius);
506 AliMatrix (idrotm[nrot], 90., 0.,90.-ang,90.,-ang, 90.);
507 AliMatrix (idrotm[nrot+1],90.,180.,90.+ang,90., ang, 90.);
509 ycoor = -14.5+ kspace; //2 cm over front plate
510 ycoor += (1-(upDown+1)/2)*gap;
511 gMC->Gspos("FSTR",j ,"FLTA",0.,ycoor, zcoor,idrotm[nrot], "ONLY");
512 gMC->Gspos("FSTR",j+1,"FLTA",0.,ycoor,-zcoor,idrotm[nrot+1],"ONLY");
514 printf("%f, St. %2i, Pl.3 ",ang*kRaddeg,i);
515 printf("y = %f, z = %f, zpos = %f \n",ycoor,zcoor,zpos);
518 upDown*= -1; // Alternate strips
519 zcoor = zcoor-(zSenStrip/2)/TMath::Cos(ang)-
520 upDown*gap*TMath::Tan(ang)-
521 (zSenStrip/2)/TMath::Cos(ang);
522 } while (zcoor-(stripWidth/2)*TMath::Cos(ang)>-t+zFLTC+zFLTB+db*2);
524 zcoor = zcoor+(zSenStrip/2)/TMath::Cos(ang)+
525 upDown*gap*TMath::Tan(ang)+
526 (zSenStrip/2)/TMath::Cos(ang);
529 zcoor = zcoor-(zSenStrip/2)/TMath::Cos(ang)-
530 upDown*gap*TMath::Tan(ang)-
531 (zSenStrip/2)/TMath::Cos(ang);
533 ang = atan(zcoor/radius);
535 AliMatrix (idrotm[nrot], 90., 0.,90.-ang,90.,-ang, 90.);
536 AliMatrix (idrotm[nrot+1],90.,180.,90.+ang,90., ang, 90.);
539 ycoor = -14.5+ kspace; //2 cm over front plate
540 ycoor += (1-(upDown+1)/2)*gap;
541 gMC->Gspos("FSTR",j ,"FLTA",0.,ycoor, zcoor,idrotm[nrot], "ONLY");
542 gMC->Gspos("FSTR",j+1,"FLTA",0.,ycoor,-zcoor,idrotm[nrot+1],"ONLY");
543 printf("%f, St. %2i, Pl.3 ",ang*kRaddeg,i);
544 printf("y = %f, z = %f, zpos = %f \n",ycoor,zcoor,zpos);
546 ycoor = -hTof/2.+ kspace;//2 cm over front plate
553 Float_t deadRegion = 1.0;//cm
555 zpos = zcoor - (zSenStrip/2)/TMath::Cos(ang)-
556 upDown*gap*TMath::Tan(ang)-
557 (zSenStrip/2)/TMath::Cos(ang)-
558 deadRegion/TMath::Cos(ang);
560 ang = atan(zpos/radius);
562 AliMatrix (idrotm[nrot], 90., 0., 90.-ang,90.,ang, 270.);
564 ycoor = -hTof*0.5+ kspace ; //2 cm over front plate
565 ycoor += (1-(upDown+1)/2)*gap;
566 zcoor = zpos+(zFLTA*0.5+zFLTB*0.5+db); // Moves to the system of the modulus FLTB
567 gMC->Gspos("FSTR",i, "FLTB", 0., ycoor, zcoor,idrotm[nrot], "ONLY");
569 printf("%f, St. %2i, Pl.4 ",ang*kRaddeg,i);
570 printf("y = %f, z = %f, zpos = %f \n",ycoor,zcoor,zpos);
576 zpos = zpos - (zSenStrip/2)/TMath::Cos(ang)-
577 upDown*gap*TMath::Tan(ang)-
578 (zSenStrip/2)/TMath::Cos(ang);
579 ang = atan(zpos/radius);
581 AliMatrix (idrotm[nrot], 90., 0., 90.-ang,90.,ang, 270.);
583 Float_t deltaSpaceinB=-0.5; // [cm] to avoid overlaps with the end of freon frame
584 Float_t deltaGapinB=0.5; // [cm] to avoid overlaps in between initial strips
585 ycoor = -hTof*0.5+ kspace+deltaSpaceinB ; //2 cm over front plate
586 ycoor += (1-(upDown+1)/2)*(gap+deltaGapinB);
587 zcoor = zpos+(zFLTA*0.5+zFLTB*0.5+db); // Moves to the system of the modulus FLTB
588 gMC->Gspos("FSTR",i, "FLTB", 0., ycoor, zcoor,idrotm[nrot], "ONLY");
590 printf("%f, St. %2i, Pl.4 ",ang*kRaddeg,i);
591 printf("y = %f, z = %f, zpos = %f \n",ycoor,zcoor,zpos);
595 } while (TMath::Abs(ang*kRaddeg)<22.5);
596 //till we reach a tilting angle of 22.5 degrees
598 ycoor = -hTof*0.5+ kspace ; //2 cm over front plate
599 zpos = zpos - zSenStrip/TMath::Cos(ang);
600 // this avoid overlaps in between outer strips in plate B
601 Float_t deltaMovingUp=0.8; // [cm]
602 Float_t deltaMovingDown=-0.5; // [cm]
605 ang = atan(zpos/radius);
607 AliMatrix (idrotm[nrot], 90., 0., 90.-ang,90.,ang, 270.);
609 zcoor = zpos+(zFLTB/2+zFLTA/2+db);
610 gMC->Gspos("FSTR",i, "FLTB", 0., ycoor+deltaMovingDown+deltaMovingUp, zcoor,idrotm[nrot], "ONLY");
611 deltaMovingUp+=0.8; // update delta moving toward the end of the plate
612 zpos = zpos - zSenStrip/TMath::Cos(ang);
613 printf("%f, St. %2i, Pl.4 ",ang*kRaddeg,i);
614 printf("y = %f, z = %f, zpos = %f \n",ycoor,zcoor,zpos);
616 } while (zpos-stripWidth*0.5/TMath::Cos(ang)>-t+zFLTC+db);
620 zpos = zpos + zSenStrip/TMath::Cos(ang);
622 zpos = zpos - (zSenStrip/2)/TMath::Cos(ang)+
624 (zSenStrip/2)/TMath::Cos(ang);
628 Float_t deltaGap=-2.5; // [cm] update distance from strip center and plate
629 ycoor= -hTof*0.5+kspace+gap+deltaGap;
633 ang = atan(zpos/radius);
635 AliMatrix (idrotm[nrot], 90., 0., 90.-ang,90.,ang, 270.);
637 zcoor = zpos+(zFLTC*0.5+zFLTB+zFLTA*0.5+db*2);
638 gMC->Gspos("FSTR",i, "FLTC", 0., ycoor, zcoor,idrotm[nrot], "ONLY");
640 printf("%f, St. %2i, Pl.5 ",ang*kRaddeg,i);
641 printf("y = %f, z = %f, zpos = %f \n",ycoor,zcoor,zpos);
643 zpos = zpos - zSenStrip/TMath::Cos(ang);
644 } while (zpos-stripWidth*TMath::Cos(ang)*0.5>-t);
647 ////////// Layers after strips /////////////////
648 // honeycomb (Polyethilene) Layer after (1.2cm)
650 Float_t overSpace = fOverSpc;//cm
654 par[2] = (zFLTA *0.5);
655 ycoor = -yFLT/2 + overSpace + par[1];
656 gMC->Gsvolu("FPEA", "BOX ", idtmed[503], par, 3); // Hony
657 gMC->Gspos ("FPEA", 0, "FLTA", 0., ycoor, 0., 0, "ONLY");
658 par[2] = (zFLTB *0.5);
659 gMC->Gsvolu("FPEB", "BOX ", idtmed[503], par, 3); // Hony
660 gMC->Gspos ("FPEB", 0, "FLTB", 0., ycoor, 0., 0, "ONLY");
661 par[2] = (zFLTC *0.5);
662 gMC->Gsvolu("FPEC", "BOX ", idtmed[503], par, 3); // Hony
663 gMC->Gspos ("FPEC", 0, "FLTC", 0., ycoor, 0., 0, "ONLY");
665 // Electronics (Cu) after
668 par[1] = 1.43*0.05*0.5; // 5% of X0
669 par[2] = (zFLTA *0.5);
671 gMC->Gsvolu("FECA", "BOX ", idtmed[501], par, 3); // Cu
672 gMC->Gspos ("FECA", 0, "FLTA", 0., ycoor, 0., 0, "ONLY");
673 par[2] = (zFLTB *0.5);
674 gMC->Gsvolu("FECB", "BOX ", idtmed[501], par, 3); // Cu
675 gMC->Gspos ("FECB", 0, "FLTB", 0., ycoor, 0., 0, "ONLY");
676 par[2] = (zFLTC *0.5);
677 gMC->Gsvolu("FECC", "BOX ", idtmed[501], par, 3); // Cu
678 gMC->Gspos ("FECC", 0, "FLTC", 0., ycoor, 0., 0, "ONLY");
680 // cooling WAter after
683 par[1] = 36.1*0.02*0.5; // 2% of X0
684 par[2] = (zFLTA *0.5);
686 gMC->Gsvolu("FWAA", "BOX ", idtmed[515], par, 3); // Water
687 gMC->Gspos ("FWAA", 0, "FLTA", 0., ycoor, 0., 0, "ONLY");
688 par[2] = (zFLTB *0.5);
689 gMC->Gsvolu("FWAB", "BOX ", idtmed[515], par, 3); // Water
690 gMC->Gspos ("FWAB", 0, "FLTB", 0., ycoor, 0., 0, "ONLY");
691 par[2] = (zFLTC *0.5);
692 gMC->Gsvolu("FWAC", "BOX ", idtmed[515], par, 3); // Water
693 gMC->Gspos ("FWAC", 0, "FLTC", 0., ycoor, 0., 0, "ONLY");
698 par[1] = (yFLT/2-ycoor-0.2)*0.5; // Aluminum layer considered (0.2 cm)
699 par[2] = (zFLTA *0.5);
701 gMC->Gsvolu("FAIA", "BOX ", idtmed[500], par, 3); // Air
702 gMC->Gspos ("FAIA", 0, "FLTA", 0., ycoor, 0., 0, "ONLY");
703 par[2] = (zFLTB *0.5);
704 gMC->Gsvolu("FAIB", "BOX ", idtmed[500], par, 3); // Air
705 gMC->Gspos ("FAIB", 0, "FLTB", 0., ycoor, 0., 0, "ONLY");
706 par[2] = (zFLTC *0.5);
707 gMC->Gsvolu("FAIC", "BOX ", idtmed[500], par, 3); // Air
708 gMC->Gspos ("FAIC", 0, "FLTC", 0., ycoor, 0., 0, "ONLY");
710 //Back Plate honycomb (2cm)
714 ycoor = yFLT/2 - par[1];
715 gMC->Gsvolu("FBPA", "BOX ", idtmed[503], par, 3); // Hony
716 gMC->Gspos ("FBPA", 0, "FLTA", 0., ycoor, 0., 0, "ONLY");
717 gMC->Gsvolu("FBPB", "BOX ", idtmed[503], par, 3); // Hony
718 gMC->Gspos ("FBPB", 0, "FLTB", 0., ycoor, 0., 0, "ONLY");
719 gMC->Gsvolu("FBPC", "BOX ", idtmed[503], par, 3); // Hony
720 gMC->Gspos ("FBPC", 0, "FLTC", 0., ycoor, 0., 0, "ONLY");
724 //_____________________________________________________________________________
725 void AliTOFv0::DrawModule() const
728 // Draw a shaded view of the Time Of Flight version 0
730 // Set everything unseen
731 gMC->Gsatt("*", "seen", -1);
733 // Set ALIC mother transparent
734 gMC->Gsatt("ALIC","SEEN",0);
736 // Set the volumes visible
737 gMC->Gsatt("ALIC","SEEN",0);
739 gMC->Gsatt("FTOA","SEEN",1);
740 gMC->Gsatt("FTOB","SEEN",1);
741 gMC->Gsatt("FTOC","SEEN",1);
742 gMC->Gsatt("FLTA","SEEN",1);
743 gMC->Gsatt("FLTB","SEEN",1);
744 gMC->Gsatt("FLTC","SEEN",1);
745 gMC->Gsatt("FPLA","SEEN",1);
746 gMC->Gsatt("FPLB","SEEN",1);
747 gMC->Gsatt("FPLC","SEEN",1);
748 gMC->Gsatt("FSTR","SEEN",1);
749 gMC->Gsatt("FPEA","SEEN",1);
750 gMC->Gsatt("FPEB","SEEN",1);
751 gMC->Gsatt("FPEC","SEEN",1);
753 gMC->Gsatt("FLZ1","SEEN",0);
754 gMC->Gsatt("FLZ2","SEEN",0);
755 gMC->Gsatt("FLZ3","SEEN",0);
756 gMC->Gsatt("FLX1","SEEN",0);
757 gMC->Gsatt("FLX2","SEEN",0);
758 gMC->Gsatt("FLX3","SEEN",0);
759 gMC->Gsatt("FPAD","SEEN",0);
761 gMC->Gdopt("hide", "on");
762 gMC->Gdopt("shad", "on");
763 gMC->Gsatt("*", "fill", 7);
764 gMC->SetClipBox(".");
765 gMC->SetClipBox("*", 0, 1000, -1000, 1000, -1000, 1000);
767 gMC->Gdraw("alic", 40, 30, 0, 12, 9.5, .02, .02);
768 gMC->Gdhead(1111, "Time Of Flight");
769 gMC->Gdman(18, 4, "MAN");
770 gMC->Gdopt("hide","off");
772 //_____________________________________________________________________________
773 void AliTOFv0::DrawDetectorModules()
776 // Draw a shaded view of the TOF detector version 0
779 AliMC* pMC = AliMC::GetMC();
781 //Set ALIC mother transparent
782 pMC->Gsatt("ALIC","SEEN",0);
785 //Set volumes visible
788 // Level 1 for TOF volumes
789 gMC->Gsatt("B077","seen",0);
792 //==========> Level 2
794 gMC->Gsatt("B076","seen",-1); // all B076 sub-levels skipped -
795 gMC->Gsatt("B071","seen",0);
796 gMC->Gsatt("B074","seen",0);
797 gMC->Gsatt("B075","seen",0);
798 gMC->Gsatt("B080","seen",0); // B080 does not has sub-level
802 gMC->Gsatt("B063","seen",-1); // all B063 sub-levels skipped -
803 gMC->Gsatt("B065","seen",-1); // all B065 sub-levels skipped -
804 gMC->Gsatt("B067","seen",-1); // all B067 sub-levels skipped -
805 gMC->Gsatt("B069","seen",-1); // all B069 sub-levels skipped -
806 gMC->Gsatt("B056","seen",0); // B056 does not has sub-levels -
807 gMC->Gsatt("B059","seen",-1); // all B059 sub-levels skipped -
808 gMC->Gsatt("B072","seen",-1); // all B072 sub-levels skipped -
809 gMC->Gsatt("BTR1","seen",0); // BTR1 do not have sub-levels -
810 gMC->Gsatt("BTO1","seen",0);
814 gMC->Gsatt("BTR2","seen",0); // BTR2 does not has sub-levels -
815 gMC->Gsatt("BTO2","seen",0);
818 gMC->Gsatt("BTR3","seen",0); // BTR3 do not have sub-levels -
819 gMC->Gsatt("BTO3","seen",0);
821 // ==================> Level 3
822 // Level 3 of B071 / Level 2 of BTO1
823 gMC->Gsatt("FTOC","seen",-2);
824 gMC->Gsatt("FTOB","seen",-2);
825 gMC->Gsatt("FTOA","seen",-2);
827 // Level 3 of B074 / Level 2 of BTO2
828 // -> cfr previous settings
830 // Level 3 of B075 / Level 2 of BTO3
831 // -> cfr previous settings
833 gMC->Gdopt("hide","on");
834 gMC->Gdopt("shad","on");
835 gMC->Gsatt("*", "fill", 5);
836 gMC->SetClipBox(".");
837 gMC->SetClipBox("*", 0, 1000, 0, 1000, 0, 1000);
839 gMC->Gdraw("alic", 45, 40, 0, 10, 10, .015, .015);
840 gMC->Gdhead(1111,"TOF detector V1");
841 gMC->Gdman(18, 4, "MAN");
842 gMC->Gdopt("hide","off");
845 //_____________________________________________________________________________
846 void AliTOFv0::DrawDetectorStrips()
849 // Draw a shaded view of the TOF strips for version 0
852 AliMC* pMC = AliMC::GetMC();
854 //Set ALIC mother transparent
855 pMC->Gsatt("ALIC","SEEN",0);
858 //Set volumes visible
860 // Level 1 for TOF volumes
861 gMC->Gsatt("B077","seen",0);
863 //==========> Level 2
865 gMC->Gsatt("B076","seen",-1); // all B076 sub-levels skipped -
866 gMC->Gsatt("B071","seen",0);
867 gMC->Gsatt("B074","seen",0);
868 gMC->Gsatt("B075","seen",0);
869 gMC->Gsatt("B080","seen",0); // B080 does not has sub-level
872 gMC->Gsatt("B063","seen",-1); // all B063 sub-levels skipped -
873 gMC->Gsatt("B065","seen",-1); // all B065 sub-levels skipped -
874 gMC->Gsatt("B067","seen",-1); // all B067 sub-levels skipped -
875 gMC->Gsatt("B069","seen",-1); // all B069 sub-levels skipped -
876 gMC->Gsatt("B056","seen",0); // B056 does not has sub-levels -
877 gMC->Gsatt("B059","seen",-1); // all B059 sub-levels skipped -
878 gMC->Gsatt("B072","seen",-1); // all B072 sub-levels skipped -
879 gMC->Gsatt("BTR1","seen",0); // BTR1 do not have sub-levels -
880 gMC->Gsatt("BTO1","seen",0);
882 // ==================> Level 3
883 // Level 3 of B071 / Level 2 of BTO1
884 gMC->Gsatt("FTOC","seen",0);
885 gMC->Gsatt("FTOB","seen",0);
886 gMC->Gsatt("FTOA","seen",0);
888 // Level 3 of B074 / Level 2 of BTO2
889 // -> cfr previous settings
891 // Level 3 of B075 / Level 2 of BTO3
892 // -> cfr previous settings
895 // ==========================> Level 4
896 // Level 4 of B071 / Level 3 of BTO1 / Level 2 of FTOC
897 gMC->Gsatt("FLTC","seen",0);
898 // Level 4 of B071 / Level 3 of BTO1 / Level 2 of FTOB
899 gMC->Gsatt("FLTB","seen",0);
900 // Level 4 of B071 / Level 3 of BTO1 / Level 2 of FTOA
901 gMC->Gsatt("FLTA","seen",0);
903 // Level 4 of B074 / Level 3 of BTO2 / Level 2 of FTOC
904 // -> cfr previous settings
905 // Level 4 of B074 / Level 3 of BTO2 / Level 2 of FTOB
906 // -> cfr previous settings
908 // Level 4 of B075 / Level 3 of BTO3 / Level 2 of FTOC
909 // -> cfr previous settings
911 //======================================> Level 5
912 // Level 5 of B071 / Level 4 of BTO1 / Level 3 of FTOC / Level 2 of FLTC
913 gMC->Gsatt("FALC","seen",0); // no children for FALC
914 gMC->Gsatt("FSTR","seen",-2);
915 gMC->Gsatt("FPEC","seen",0); // no children for FPEC
916 gMC->Gsatt("FECC","seen",0); // no children for FECC
917 gMC->Gsatt("FWAC","seen",0); // no children for FWAC
918 gMC->Gsatt("FAIC","seen",0); // no children for FAIC
920 // Level 5 of B071 / Level 4 of BTO1 / Level 3 of FTOB / Level 2 of FLTB
921 gMC->Gsatt("FALB","seen",0); // no children for FALB
922 //--> gMC->Gsatt("FSTR","seen",-2);
925 // -> cfr previous settings
926 gMC->Gsatt("FPEB","seen",0); // no children for FPEB
927 gMC->Gsatt("FECB","seen",0); // no children for FECB
928 gMC->Gsatt("FWAB","seen",0); // no children for FWAB
929 gMC->Gsatt("FAIB","seen",0); // no children for FAIB
931 // Level 5 of B071 / Level 4 of BTO1 / Level 3 of FTOA / Level 2 of FLTA
932 gMC->Gsatt("FALA","seen",0); // no children for FALB
933 //--> gMC->Gsatt("FSTR","seen",-2);
934 // -> cfr previous settings
935 gMC->Gsatt("FPEA","seen",0); // no children for FPEA
936 gMC->Gsatt("FECA","seen",0); // no children for FECA
937 gMC->Gsatt("FWAA","seen",0); // no children for FWAA
938 gMC->Gsatt("FAIA","seen",0); // no children for FAIA
941 gMC->Gsatt("BTR2","seen",0); // BTR2 does not has sub-levels -
942 gMC->Gsatt("BTO2","seen",0);
945 gMC->Gsatt("BTR3","seen",0); // BTR3 do not have sub-levels -
946 gMC->Gsatt("BTO3","seen",0);
948 // for others Level 5, cfr. previous settings
950 gMC->Gdopt("hide","on");
951 gMC->Gdopt("shad","on");
952 gMC->Gsatt("*", "fill", 5);
953 gMC->SetClipBox(".");
954 gMC->SetClipBox("*", 0, 1000, 0, 1000, 0, 1000);
956 gMC->Gdraw("alic", 45, 40, 0, 10, 10, .015, .015);
957 gMC->Gdhead(1111,"TOF Strips V1");
958 gMC->Gdman(18, 4, "MAN");
959 gMC->Gdopt("hide","off");
962 //_____________________________________________________________________________
963 void AliTOFv0::CreateMaterials()
966 // Define materials for the Time Of Flight
968 AliTOF::CreateMaterials();
971 //_____________________________________________________________________________
972 void AliTOFv0::Init()
975 // Initialise the detector after the geometry has been defined
977 printf("**************************************"
979 "**************************************\n");
980 printf("\n Version 0 of TOF initialing, "
981 "symmetric TOF - Full Coverage version\n");
985 fIdFTOA = gMC->VolId("FTOA");
986 fIdFTOB = gMC->VolId("FTOB");
987 fIdFTOC = gMC->VolId("FTOC");
988 fIdFLTA = gMC->VolId("FLTA");
989 fIdFLTB = gMC->VolId("FLTB");
990 fIdFLTC = gMC->VolId("FLTC");
993 printf("%s: **************************************"
995 "**************************************\n",ClassName());
999 //_____________________________________________________________________________
1000 void AliTOFv0::StepManager()
1003 // Procedure called at each step in the Time Of Flight
1005 TLorentzVector mom, pos;
1006 Float_t xm[3],pm[3],xpad[3],ppad[3];
1007 Float_t hits[13],phi,phid,z;
1009 Int_t sector, plate, padx, padz, strip;
1010 Int_t copy, padzid, padxid, stripid, i;
1011 Int_t *idtmed = fIdtmed->GetArray()-499;
1012 Float_t incidenceAngle;
1014 if(gMC->GetMedium()==idtmed[513] &&
1015 gMC->IsTrackEntering() && gMC->TrackCharge()
1016 && gMC->CurrentVolID(copy)==fIdSens)
1018 // getting information about hit volumes
1020 padzid=gMC->CurrentVolOffID(2,copy);
1023 padxid=gMC->CurrentVolOffID(1,copy);
1026 stripid=gMC->CurrentVolOffID(4,copy);
1029 gMC->TrackPosition(pos);
1030 gMC->TrackMomentum(mom);
1032 // Double_t NormPos=1./pos.Rho();
1033 Double_t normMom=1./mom.Rho();
1035 // getting the cohordinates in pad ref system
1036 xm[0] = (Float_t)pos.X();
1037 xm[1] = (Float_t)pos.Y();
1038 xm[2] = (Float_t)pos.Z();
1040 pm[0] = (Float_t)mom.X()*normMom;
1041 pm[1] = (Float_t)mom.Y()*normMom;
1042 pm[2] = (Float_t)mom.Z()*normMom;
1044 gMC->Gmtod(xm,xpad,1);
1045 gMC->Gmtod(pm,ppad,2);
1047 incidenceAngle = TMath::ACos(ppad[1])*kRaddeg;
1052 if (TMath::Abs(z) <= fZlenA*0.5) plate = 3;
1053 if (z < (fZlenA*0.5+fZlenB) &&
1054 z > fZlenA*0.5) plate = 4;
1055 if (z >-(fZlenA*0.5+fZlenB) &&
1056 z < -fZlenA*0.5) plate = 2;
1057 if (z > (fZlenA*0.5+fZlenB)) plate = 5;
1058 if (z <-(fZlenA*0.5+fZlenB)) plate = 1;
1061 phid = phi*kRaddeg+180.;
1062 sector = Int_t (phid/20.);
1070 hits[6] = mom.Rho();
1075 hits[11]= incidenceAngle;
1076 hits[12]= gMC->Edep();
1084 AddHit(gAlice->CurrentTrack(),vol, hits);