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 1.27 2001/11/22 11:22:51 hristov
19 Updated version of TOF digitization, N^2 problem solved (J.Chudoba)
22 Revision 1.26 2001/11/13 14:36:40 vicinanz
23 Updated check for ppad[1] range
25 Revision 1.24 2001/09/27 10:39:20 vicinanz
26 SDigitizer and Merger added
28 Revision 1.23 2001/09/20 15:54:22 vicinanz
29 Updated Strip Structure (Double Stack)
31 Revision 1.22 2001/08/28 08:45:59 vicinanz
32 TTask and TFolder structures implemented
34 Revision 1.21 2001/05/16 14:57:24 alibrary
35 New files for folders and Stack
37 Revision 1.20 2001/05/04 10:09:48 vicinanz
38 Major upgrades to the strip structure
40 Revision 1.19 2000/12/04 08:48:20 alibrary
41 Fixing problems in the HEAD
43 Revision 1.18 2000/10/02 21:28:17 fca
44 Removal of useless dependecies via forward declarations
46 Revision 1.17 2000/06/06 07:52:09 vicinanz
47 NodeName array dimension enlarged
49 Revision 1.16 2000/05/10 16:52:18 vicinanz
50 New TOF version with holes for PHOS/RICH
52 Revision 1.14.2.1 2000/05/10 09:37:16 vicinanz
53 New version with Holes for PHOS/RICH
55 Revision 1.14 1999/11/05 22:39:06 fca
58 Revision 1.13 1999/11/02 11:26:39 fca
59 added stdlib.h for exit
61 Revision 1.12 1999/11/01 20:41:57 fca
62 Added protections against using the wrong version of FRAME
64 Revision 1.11 1999/10/22 08:04:14 fca
65 Correct improper use of negative parameters
67 Revision 1.10 1999/10/16 19:30:06 fca
68 Corrected Rotation Matrix and CVS log
70 Revision 1.9 1999/10/15 15:35:20 fca
71 New version for frame1099 with and without holes
73 Revision 1.8 1999/09/29 09:24:33 fca
74 Introduction of the Copyright and cvs Log
78 ///////////////////////////////////////////////////////////////////////////////
80 // Time Of Flight: design of C.Williams //
82 // This class contains the functions for version 1 of the Time Of Flight //
85 // VERSION WITH 5 MODULES AND TILTED STRIPS
87 // HOLES FOR PHOS DETECTOR
94 // University of Salerno - Italy
97 // University of Bologna - Italy
102 <img src="picts/AliTOFv1Class.gif">
106 ///////////////////////////////////////////////////////////////////////////////
108 #include <iostream.h>
111 #include "AliTOFv1.h"
113 #include "TGeometry.h"
116 #include <TLorentzVector.h>
120 #include "AliConst.h"
125 //_____________________________________________________________________________
129 // Default constructor
133 //_____________________________________________________________________________
134 AliTOFv1::AliTOFv1(const char *name, const char *title)
138 // Standard constructor
141 // Check that FRAME is there otherwise we have no place where to
143 AliModule* frame=gAlice->GetModule("FRAME");
145 Error("Ctor","TOF needs FRAME to be present\n");
148 if(frame->IsVersion()!=1) {
149 Error("Ctor","FRAME version 1 needed with this version of TOF\n");
157 //____________________________________________________________________________
159 void AliTOFv1::BuildGeometry()
162 // Build TOF ROOT geometry for the ALICE event display
165 const int kColorTOF = 27;
168 top = gAlice->GetGeometry()->GetNode("alice");
170 // Position the different copies
171 const Float_t krTof =(fRmax+fRmin)/2;
172 const Float_t khTof = fRmax-fRmin;
173 const Int_t kNTof = fNTof;
174 const Float_t kPi = TMath::Pi();
175 const Float_t kangle = 2*kPi/kNTof;
178 // Define TOF basic volume
180 char nodeName0[7], nodeName1[7], nodeName2[7];
181 char nodeName3[7], nodeName4[7], rotMatNum[7];
183 new TBRIK("S_TOF_C","TOF box","void",
184 120*0.5,khTof*0.5,fZlenC*0.5);
185 new TBRIK("S_TOF_B","TOF box","void",
186 120*0.5,khTof*0.5,fZlenB*0.5);
187 new TBRIK("S_TOF_A","TOF box","void",
188 120*0.5,khTof*0.5,fZlenA*0.5);
190 for (Int_t nodeNum=1;nodeNum<19;nodeNum++){
193 sprintf(rotMatNum,"rot50%i",nodeNum);
194 sprintf(nodeName0,"FTO00%i",nodeNum);
195 sprintf(nodeName1,"FTO10%i",nodeNum);
196 sprintf(nodeName2,"FTO20%i",nodeNum);
197 sprintf(nodeName3,"FTO30%i",nodeNum);
198 sprintf(nodeName4,"FTO40%i",nodeNum);
201 sprintf(rotMatNum,"rot5%i",nodeNum);
202 sprintf(nodeName0,"FTO0%i",nodeNum);
203 sprintf(nodeName1,"FTO1%i",nodeNum);
204 sprintf(nodeName2,"FTO2%i",nodeNum);
205 sprintf(nodeName3,"FTO3%i",nodeNum);
206 sprintf(nodeName4,"FTO4%i",nodeNum);
209 new TRotMatrix(rotMatNum,rotMatNum,90,-20*nodeNum,90,90-20*nodeNum,0,0);
210 ang = (4.5-nodeNum) * kangle;
213 node = new TNode(nodeName0,nodeName0,"S_TOF_C",krTof*TMath::Cos(ang),krTof*TMath::Sin(ang),299.15,rotMatNum);
214 node->SetLineColor(kColorTOF);
218 node = new TNode(nodeName1,nodeName1,"S_TOF_C",krTof*TMath::Cos(ang),krTof*TMath::Sin(ang),-299.15,rotMatNum);
219 node->SetLineColor(kColorTOF);
223 node = new TNode(nodeName2,nodeName2,"S_TOF_B",krTof*TMath::Cos(ang),krTof*TMath::Sin(ang),146.45,rotMatNum);
224 node->SetLineColor(kColorTOF);
228 node = new TNode(nodeName3,nodeName3,"S_TOF_B",krTof*TMath::Cos(ang),krTof*TMath::Sin(ang),-146.45,rotMatNum);
229 node->SetLineColor(kColorTOF);
232 if (nodeNum<8 || nodeNum>12) {
234 node = new TNode(nodeName4,nodeName4,"S_TOF_A",krTof*TMath::Cos(ang),krTof*TMath::Sin(ang),0.,rotMatNum);
235 node->SetLineColor(kColorTOF);
237 } // Modules A which are not to be installed for PHOS holes.
238 } // end loop on nodeNum
242 //_____________________________________________________________________________
243 void AliTOFv1::CreateGeometry()
246 // Create geometry for Time Of Flight version 0
250 <img src="picts/AliTOFv1.gif">
254 // Creates common geometry
256 AliTOF::CreateGeometry();
259 //_____________________________________________________________________________
260 void AliTOFv1::TOFpc(Float_t xtof, Float_t ytof, Float_t zlenC,
261 Float_t zlenB, Float_t zlenA, Float_t ztof0)
264 // Definition of the Time Of Fligh Resistive Plate Chambers
265 // xFLT, yFLT, zFLT - sizes of TOF modules (large)
267 Float_t ycoor, zcoor;
269 Int_t *idtmed = fIdtmed->GetArray()-499;
272 Float_t hTof = fRmax-fRmin;
274 Float_t radius = fRmin+2.;//cm
278 par[2] = zlenC * 0.5;
279 gMC->Gsvolu("FTOC", "BOX ", idtmed[506], par, 3);
280 par[2] = zlenB * 0.5;
281 gMC->Gsvolu("FTOB", "BOX ", idtmed[506], par, 3);
282 par[2] = zlenA * 0.5;
283 gMC->Gsvolu("FTOA", "BOX ", idtmed[506], par, 3);
286 // Positioning of modules
288 Float_t zcor1 = ztof0 - zlenC*0.5;
289 Float_t zcor2 = ztof0 - zlenC - zlenB*0.5;
292 AliMatrix(idrotm[0], 90., 0., 0., 0., 90,-90.);
293 AliMatrix(idrotm[1], 90.,180., 0., 0., 90, 90.);
294 gMC->Gspos("FTOC", 1, "BTO1", 0, zcor1, 0, idrotm[0], "ONLY");
295 gMC->Gspos("FTOC", 2, "BTO1", 0, -zcor1, 0, idrotm[1], "ONLY");
296 gMC->Gspos("FTOC", 1, "BTO2", 0, zcor1, 0, idrotm[0], "ONLY");
297 gMC->Gspos("FTOC", 2, "BTO2", 0, -zcor1, 0, idrotm[1], "ONLY");
298 gMC->Gspos("FTOC", 1, "BTO3", 0, zcor1, 0, idrotm[0], "ONLY");
299 gMC->Gspos("FTOC", 2, "BTO3", 0, -zcor1, 0, idrotm[1], "ONLY");
301 gMC->Gspos("FTOB", 1, "BTO1", 0, zcor2, 0, idrotm[0], "ONLY");
302 gMC->Gspos("FTOB", 2, "BTO1", 0, -zcor2, 0, idrotm[1], "ONLY");
303 gMC->Gspos("FTOB", 1, "BTO2", 0, zcor2, 0, idrotm[0], "ONLY");
304 gMC->Gspos("FTOB", 2, "BTO2", 0, -zcor2, 0, idrotm[1], "ONLY");
305 gMC->Gspos("FTOB", 1, "BTO3", 0, zcor2, 0, idrotm[0], "ONLY");
306 gMC->Gspos("FTOB", 2, "BTO3", 0, -zcor2, 0, idrotm[1], "ONLY");
308 gMC->Gspos("FTOA", 0, "BTO1", 0, zcor3, 0, idrotm[0], "ONLY");
309 gMC->Gspos("FTOA", 0, "BTO3", 0, zcor3, 0, idrotm[0], "ONLY");
311 Float_t db = 0.5;//cm
312 Float_t xFLT, xFST, yFLT, zFLTA, zFLTB, zFLTC;
320 xFST = xFLT-fDeadBndX*2;//cm
322 // Sizes of MRPC pads
324 Float_t yPad = 0.505;//cm
326 // Large not sensitive volumes with Insensitive Freon
330 if(fDebug) cout << ClassName()
331 << ": ************************* TOF geometry **************************"
334 par[2] = (zFLTA *0.5);
335 gMC->Gsvolu("FLTA", "BOX ", idtmed[512], par, 3); // Insensitive Freon
336 gMC->Gspos ("FLTA", 0, "FTOA", 0., 0., 0., 0, "ONLY");
338 par[2] = (zFLTB * 0.5);
339 gMC->Gsvolu("FLTB", "BOX ", idtmed[512], par, 3); // Insensitive Freon
340 gMC->Gspos ("FLTB", 0, "FTOB", 0., 0., 0., 0, "ONLY");
342 par[2] = (zFLTC * 0.5);
343 gMC->Gsvolu("FLTC", "BOX ", idtmed[512], par, 3); // Insensitive Freon
344 gMC->Gspos ("FLTC", 0, "FTOC", 0., 0., 0., 0, "ONLY");
346 ////////// Layers of Aluminum before and after detector //////////
347 ////////// Aluminum Box for Modules (2.0 mm thickness) /////////
348 ////////// lateral walls not simulated
351 ycoor = -yFLT/2 + par[1];
352 par[2] = (zFLTA *0.5);
353 gMC->Gsvolu("FALA", "BOX ", idtmed[508], par, 3); // Alluminium
354 gMC->Gspos ("FALA", 1, "FLTA", 0., ycoor, 0., 0, "ONLY");
355 gMC->Gspos ("FALA", 2, "FLTA", 0.,-ycoor, 0., 0, "ONLY");
356 par[2] = (zFLTB *0.5);
357 gMC->Gsvolu("FALB", "BOX ", idtmed[508], par, 3); // Alluminium
358 gMC->Gspos ("FALB", 1, "FLTB", 0., ycoor, 0., 0, "ONLY");
359 gMC->Gspos ("FALB", 2, "FLTB", 0.,-ycoor, 0., 0, "ONLY");
360 par[2] = (zFLTC *0.5);
361 gMC->Gsvolu("FALC", "BOX ", idtmed[508], par, 3); // Alluminium
362 gMC->Gspos ("FALC", 1, "FLTC", 0., ycoor, 0., 0, "ONLY");
363 gMC->Gspos ("FALC", 2, "FLTC", 0.,-ycoor, 0., 0, "ONLY");
365 ///////////////// Detector itself //////////////////////
367 const Float_t kdeadBound = fDeadBndZ; //cm non-sensitive between the pad edge
368 //and the boundary of the strip
369 const Int_t knx = fNpadX; // number of pads along x
370 const Int_t knz = fNpadZ; // number of pads along z
371 const Float_t kspace = fSpace; //cm distance from the front plate of the box
373 Float_t zSenStrip = fZpad*fNpadZ;//cm
374 Float_t stripWidth = zSenStrip + 2*kdeadBound;
378 par[2] = stripWidth*0.5;
380 // new description for strip volume -double stack strip-
381 // -- all constants are expressed in cm
382 // heigth of different layers
383 const Float_t khhony = 1. ; // heigth of HONY Layer
384 const Float_t khpcby = 0.15 ; // heigth of PCB Layer
385 const Float_t khmyly = 0.035 ; // heigth of MYLAR Layer
386 const Float_t khgraphy = 0.02 ; // heigth of GRAPHITE Layer
387 const Float_t khglasseiy = 0.17; // 0.6 Ext. Glass + 1.1 i.e. (Int. Glass/2) (mm)
388 const Float_t khsensmy = 0.11 ; // heigth of Sensitive Freon Mixture
389 const Float_t kwsensmz = 2*3.5 ; // cm
390 const Float_t klsensmx = 48*2.5; // cm
391 const Float_t kwpadz = 3.5; // cm z dimension of the FPAD volume
392 const Float_t klpadx = 2.5; // cm x dimension of the FPAD volume
394 // heigth of the FSTR Volume (the strip volume)
395 const Float_t khstripy = 2*khhony+3*khpcby+4*(khmyly+khgraphy+khglasseiy)+2*khsensmy;
396 // width of the FSTR Volume (the strip volume)
397 const Float_t kwstripz = 10.;
398 // length of the FSTR Volume (the strip volume)
399 const Float_t klstripx = 122.;
401 Float_t parfp[3]={klstripx*0.5,khstripy*0.5,kwstripz*0.5};
402 // coordinates of the strip center in the strip reference frame; used for positioning
403 // internal strip volumes
404 Float_t posfp[3]={0.,0.,0.};
407 // FSTR volume definition and filling this volume with non sensitive Gas Mixture
408 gMC->Gsvolu("FSTR","BOX",idtmed[512],parfp,3);
409 //-- HONY Layer definition
411 parfp[1] = khhony*0.5;
413 gMC->Gsvolu("FHON","BOX",idtmed[503],parfp,3);
414 // positioning 2 HONY Layers on FSTR volume
416 posfp[1]=-khstripy*0.5+parfp[1];
417 gMC->Gspos("FHON",1,"FSTR",0., posfp[1],0.,0,"ONLY");
418 gMC->Gspos("FHON",2,"FSTR",0.,-posfp[1],0.,0,"ONLY");
420 //-- PCB Layer definition
421 parfp[1] = khpcby*0.5;
422 gMC->Gsvolu("FPCB","BOX",idtmed[504],parfp,3);
423 // positioning 2 PCB Layers on FSTR volume
424 posfp[1]=-khstripy*0.5+khhony+parfp[1];
425 gMC->Gspos("FPCB",1,"FSTR",0., posfp[1],0.,0,"ONLY");
426 gMC->Gspos("FPCB",2,"FSTR",0.,-posfp[1],0.,0,"ONLY");
427 // positioning the central PCB layer
428 gMC->Gspos("FPCB",3,"FSTR",0.,0.,0.,0,"ONLY");
432 //-- MYLAR Layer definition
433 parfp[1] = khmyly*0.5;
434 gMC->Gsvolu("FMYL","BOX",idtmed[511],parfp,3);
435 // positioning 2 MYLAR Layers on FSTR volume
436 posfp[1] = -khstripy*0.5+khhony+khpcby+parfp[1];
437 gMC->Gspos("FMYL",1,"FSTR",0., posfp[1],0.,0,"ONLY");
438 gMC->Gspos("FMYL",2,"FSTR",0.,-posfp[1],0.,0,"ONLY");
439 // adding further 2 MYLAR Layers on FSTR volume
440 posfp[1] = khpcby*0.5+parfp[1];
441 gMC->Gspos("FMYL",3,"FSTR",0., posfp[1],0.,0,"ONLY");
442 gMC->Gspos("FMYL",4,"FSTR",0.,-posfp[1],0.,0,"ONLY");
445 //-- Graphite Layer definition
446 parfp[1] = khgraphy*0.5;
447 gMC->Gsvolu("FGRP","BOX",idtmed[502],parfp,3);
448 // positioning 2 Graphite Layers on FSTR volume
449 posfp[1] = -khstripy*0.5+khhony+khpcby+khmyly+parfp[1];
450 gMC->Gspos("FGRP",1,"FSTR",0., posfp[1],0.,0,"ONLY");
451 gMC->Gspos("FGRP",2,"FSTR",0.,-posfp[1],0.,0,"ONLY");
452 // adding further 2 Graphite Layers on FSTR volume
453 posfp[1] = khpcby*0.5+khmyly+parfp[1];
454 gMC->Gspos("FGRP",3,"FSTR",0., posfp[1],0.,0,"ONLY");
455 gMC->Gspos("FGRP",4,"FSTR",0.,-posfp[1],0.,0,"ONLY");
458 //-- Glass (EXT. +Semi INT.) Layer definition
459 parfp[1] = khglasseiy*0.5;
460 gMC->Gsvolu("FGLA","BOX",idtmed[514],parfp,3);
461 // positioning 2 Glass Layers on FSTR volume
462 posfp[1] = -khstripy*0.5+khhony+khpcby+khmyly+khgraphy+parfp[1];
463 gMC->Gspos("FGLA",1,"FSTR",0., posfp[1],0.,0,"ONLY");
464 gMC->Gspos("FGLA",2,"FSTR",0.,-posfp[1],0.,0,"ONLY");
465 // adding further 2 Glass Layers on FSTR volume
466 posfp[1] = khpcby*0.5+khmyly+khgraphy+parfp[1];
467 gMC->Gspos("FGLA",3,"FSTR",0., posfp[1],0.,0,"ONLY");
468 gMC->Gspos("FGLA",4,"FSTR",0.,-posfp[1],0.,0,"ONLY");
471 //-- Sensitive Mixture Layer definition
472 parfp[0] = klsensmx*0.5;
473 parfp[1] = khsensmy*0.5;
474 parfp[2] = kwsensmz*0.5;
475 gMC->Gsvolu("FSEN","BOX",idtmed[513],parfp,3);
476 gMC->Gsvolu("FNSE","BOX",idtmed[512],parfp,3);
477 // positioning 2 gas Layers on FSTR volume
478 // the upper is insensitive freon
479 // while the remaining is sensitive
480 posfp[1] = khpcby*0.5+khmyly+khgraphy+khglasseiy+parfp[1];
481 gMC->Gspos("FNSE",0,"FSTR", 0., posfp[1],0.,0,"ONLY");
482 gMC->Gspos("FSEN",0,"FSTR", 0.,-posfp[1],0.,0,"ONLY");
484 // dividing FSEN along z in knz=2 and along x in knx=48
485 gMC->Gsdvn("FSEZ","FSEN",knz,3);
486 gMC->Gsdvn("FSEX","FSEZ",knx,1);
488 // FPAD volume definition
489 parfp[0] = klpadx*0.5;
490 parfp[1] = khsensmy*0.5;
491 parfp[2] = kwpadz*0.5;
492 gMC->Gsvolu("FPAD","BOX",idtmed[513],parfp,3);
493 // positioning the FPAD volumes on previous divisions
494 gMC->Gspos("FPAD",0,"FSEX",0.,0.,0.,0,"ONLY");
496 //// Positioning the Strips (FSTR) in the FLT volumes /////
500 Float_t t = zFLTC+zFLTB+zFLTA*0.5+ 2*db;//Half Width of Barrel
502 Float_t gap = fGapA+0.5; //cm updated distance between the strip axis
508 ycoor = -14.5 + kspace ; //2 cm over front plate
510 AliMatrix (idrotm[0], 90., 0.,90.,90.,0., 90.);
511 gMC->Gspos("FSTR",j,"FLTA",0.,ycoor, 0.,idrotm[0],"ONLY");
513 printf("%f, St. %2i, Pl.3 ",ang*kRaddeg,i);
514 printf("y = %f, z = %f, zpos = %f \n",ycoor,zcoor,zpos);
518 Int_t upDown = -1; // upDown=-1 -> Upper strip
519 // upDown=+1 -> Lower strip
521 ang = atan(zcoor/radius);
523 AliMatrix (idrotm[nrot], 90., 0.,90.-ang,90.,-ang, 90.);
524 AliMatrix (idrotm[nrot+1],90.,180.,90.+ang,90., ang, 90.);
526 ycoor = -14.5+ kspace; //2 cm over front plate
527 ycoor += (1-(upDown+1)/2)*gap;
528 gMC->Gspos("FSTR",j ,"FLTA",0.,ycoor, zcoor,idrotm[nrot], "ONLY");
529 gMC->Gspos("FSTR",j+1,"FLTA",0.,ycoor,-zcoor,idrotm[nrot+1],"ONLY");
531 printf("%f, St. %2i, Pl.3 ",ang*kRaddeg,i);
532 printf("y = %f, z = %f, zpos = %f \n",ycoor,zcoor,zpos);
535 upDown*= -1; // Alternate strips
536 zcoor = zcoor-(zSenStrip/2)/TMath::Cos(ang)-
537 upDown*gap*TMath::Tan(ang)-
538 (zSenStrip/2)/TMath::Cos(ang);
539 } while (zcoor-(stripWidth/2)*TMath::Cos(ang)>-t+zFLTC+zFLTB+db*2);
541 zcoor = zcoor+(zSenStrip/2)/TMath::Cos(ang)+
542 upDown*gap*TMath::Tan(ang)+
543 (zSenStrip/2)/TMath::Cos(ang);
546 zcoor = zcoor-(zSenStrip/2)/TMath::Cos(ang)-
547 upDown*gap*TMath::Tan(ang)-
548 (zSenStrip/2)/TMath::Cos(ang);
550 ang = atan(zcoor/radius);
552 AliMatrix (idrotm[nrot], 90., 0.,90.-ang,90.,-ang, 90.);
553 AliMatrix (idrotm[nrot+1],90.,180.,90.+ang,90., ang, 90.);
556 ycoor = -14.5+ kspace; //2 cm over front plate
557 ycoor += (1-(upDown+1)/2)*gap;
558 gMC->Gspos("FSTR",j ,"FLTA",0.,ycoor, zcoor,idrotm[nrot], "ONLY");
559 gMC->Gspos("FSTR",j+1,"FLTA",0.,ycoor,-zcoor,idrotm[nrot+1],"ONLY");
561 printf("%f, St. %2i, Pl.3 ",ang*kRaddeg,i);
562 printf("y = %f, z = %f, zpos = %f \n",ycoor,zcoor,zpos);
564 ycoor = -hTof/2.+ kspace;//2 cm over front plate
571 Float_t deadRegion = 1.0;//cm
573 zpos = zcoor - (zSenStrip/2)/TMath::Cos(ang)-
574 upDown*gap*TMath::Tan(ang)-
575 (zSenStrip/2)/TMath::Cos(ang)-
576 deadRegion/TMath::Cos(ang);
578 ang = atan(zpos/radius);
580 AliMatrix (idrotm[nrot], 90., 0., 90.-ang,90.,ang, 270.);
582 ycoor = -hTof*0.5+ kspace ; //2 cm over front plate
583 ycoor += (1-(upDown+1)/2)*gap;
584 zcoor = zpos+(zFLTA*0.5+zFLTB*0.5+db); // Moves to the system of the modulus FLTB
585 gMC->Gspos("FSTR",i, "FLTB", 0., ycoor, zcoor,idrotm[nrot], "ONLY");
587 printf("%f, St. %2i, Pl.4 ",ang*kRaddeg,i);
588 printf("y = %f, z = %f, zpos = %f \n",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");
608 printf("%f, St. %2i, Pl.4 ",ang*kRaddeg,i);
609 printf("y = %f, z = %f, zpos = %f \n",ycoor,zcoor,zpos);
613 } while (TMath::Abs(ang*kRaddeg)<22.5);
614 //till we reach a tilting angle of 22.5 degrees
616 ycoor = -hTof*0.5+ kspace ; //2 cm over front plate
617 zpos = zpos - zSenStrip/TMath::Cos(ang);
618 // this avoid overlaps in between outer strips in plate B
619 Float_t deltaMovingUp=0.8; // [cm]
620 Float_t deltaMovingDown=-0.5; // [cm]
623 ang = atan(zpos/radius);
625 AliMatrix (idrotm[nrot], 90., 0., 90.-ang,90.,ang, 270.);
627 zcoor = zpos+(zFLTB/2+zFLTA/2+db);
628 gMC->Gspos("FSTR",i, "FLTB", 0., ycoor+deltaMovingDown+deltaMovingUp, zcoor,idrotm[nrot], "ONLY");
629 deltaMovingUp+=0.8; // update delta moving toward the end of the plate
630 zpos = zpos - zSenStrip/TMath::Cos(ang);
631 printf("%f, St. %2i, Pl.4 ",ang*kRaddeg,i);
632 printf("y = %f, z = %f, zpos = %f \n",ycoor,zcoor,zpos);
635 } while (zpos-stripWidth*0.5/TMath::Cos(ang)>-t+zFLTC+db);
639 zpos = zpos + zSenStrip/TMath::Cos(ang);
641 zpos = zpos - (zSenStrip/2)/TMath::Cos(ang)+
643 (zSenStrip/2)/TMath::Cos(ang);
647 Float_t deltaGap=-2.5; // [cm] update distance from strip center and plate
648 ycoor= -hTof*0.5+kspace+gap+deltaGap;
652 ang = atan(zpos/radius);
654 AliMatrix (idrotm[nrot], 90., 0., 90.-ang,90.,ang, 270.);
656 zcoor = zpos+(zFLTC*0.5+zFLTB+zFLTA*0.5+db*2);
657 gMC->Gspos("FSTR",i, "FLTC", 0., ycoor, zcoor,idrotm[nrot], "ONLY");
659 printf("%f, St. %2i, Pl.5 ",ang*kRaddeg,i);
660 printf("y = %f, z = %f, zpos = %f \n",ycoor,zcoor,zpos);
662 zpos = zpos - zSenStrip/TMath::Cos(ang);
663 } while (zpos-stripWidth*TMath::Cos(ang)*0.5>-t);
666 ////////// Layers after strips /////////////////
667 // honeycomb (Polyethilene) Layer after (1.2cm)
669 Float_t overSpace = fOverSpc;//cm
673 par[2] = (zFLTA *0.5);
674 ycoor = -yFLT/2 + overSpace + par[1];
675 gMC->Gsvolu("FPEA", "BOX ", idtmed[503], par, 3); // Hony
676 gMC->Gspos ("FPEA", 0, "FLTA", 0., ycoor, 0., 0, "ONLY");
677 par[2] = (zFLTB *0.5);
678 gMC->Gsvolu("FPEB", "BOX ", idtmed[503], par, 3); // Hony
679 gMC->Gspos ("FPEB", 0, "FLTB", 0., ycoor, 0., 0, "ONLY");
680 par[2] = (zFLTC *0.5);
681 gMC->Gsvolu("FPEC", "BOX ", idtmed[503], par, 3); // Hony
682 gMC->Gspos ("FPEC", 0, "FLTC", 0., ycoor, 0., 0, "ONLY");
684 // Electronics (Cu) after
687 par[1] = 1.43*0.05*0.5; // 5% of X0
688 par[2] = (zFLTA *0.5);
690 gMC->Gsvolu("FECA", "BOX ", idtmed[501], par, 3); // Cu
691 gMC->Gspos ("FECA", 0, "FLTA", 0., ycoor, 0., 0, "ONLY");
692 par[2] = (zFLTB *0.5);
693 gMC->Gsvolu("FECB", "BOX ", idtmed[501], par, 3); // Cu
694 gMC->Gspos ("FECB", 0, "FLTB", 0., ycoor, 0., 0, "ONLY");
695 par[2] = (zFLTC *0.5);
696 gMC->Gsvolu("FECC", "BOX ", idtmed[501], par, 3); // Cu
697 gMC->Gspos ("FECC", 0, "FLTC", 0., ycoor, 0., 0, "ONLY");
699 // cooling WAter after
702 par[1] = 36.1*0.02*0.5; // 2% of X0
703 par[2] = (zFLTA *0.5);
705 gMC->Gsvolu("FWAA", "BOX ", idtmed[515], par, 3); // Water
706 gMC->Gspos ("FWAA", 0, "FLTA", 0., ycoor, 0., 0, "ONLY");
707 par[2] = (zFLTB *0.5);
708 gMC->Gsvolu("FWAB", "BOX ", idtmed[515], par, 3); // Water
709 gMC->Gspos ("FWAB", 0, "FLTB", 0., ycoor, 0., 0, "ONLY");
710 par[2] = (zFLTC *0.5);
711 gMC->Gsvolu("FWAC", "BOX ", idtmed[515], par, 3); // Water
712 gMC->Gspos ("FWAC", 0, "FLTC", 0., ycoor, 0., 0, "ONLY");
717 par[1] = (yFLT/2-ycoor-0.2)*0.5; // Aluminum layer considered (0.2 cm)
718 par[2] = (zFLTA *0.5);
720 gMC->Gsvolu("FAIA", "BOX ", idtmed[500], par, 3); // Air
721 gMC->Gspos ("FAIA", 0, "FLTA", 0., ycoor, 0., 0, "ONLY");
722 par[2] = (zFLTB *0.5);
723 gMC->Gsvolu("FAIB", "BOX ", idtmed[500], par, 3); // Air
724 gMC->Gspos ("FAIB", 0, "FLTB", 0., ycoor, 0., 0, "ONLY");
725 par[2] = (zFLTC *0.5);
726 gMC->Gsvolu("FAIC", "BOX ", idtmed[500], par, 3); // Air
727 gMC->Gspos ("FAIC", 0, "FLTC", 0., ycoor, 0., 0, "ONLY");
729 //Back Plate honycomb (2cm)
733 ycoor = yFLT/2 - par[1];
734 gMC->Gsvolu("FBPA", "BOX ", idtmed[503], par, 3); // Hony
735 gMC->Gspos ("FBPA", 0, "FLTA", 0., ycoor, 0., 0, "ONLY");
736 gMC->Gsvolu("FBPB", "BOX ", idtmed[503], par, 3); // Hony
737 gMC->Gspos ("FBPB", 0, "FLTB", 0., ycoor, 0., 0, "ONLY");
738 gMC->Gsvolu("FBPC", "BOX ", idtmed[503], par, 3); // Hony
739 gMC->Gspos ("FBPC", 0, "FLTC", 0., ycoor, 0., 0, "ONLY");
743 //_____________________________________________________________________________
744 void AliTOFv1::DrawModule() const
747 // Draw a shaded view of the Time Of Flight version 1
749 // Set everything unseen
750 gMC->Gsatt("*", "seen", -1);
752 // Set ALIC mother transparent
753 gMC->Gsatt("ALIC","SEEN",0);
755 // Set the volumes visible
756 gMC->Gsatt("ALIC","SEEN",0);
758 gMC->Gsatt("FTOA","SEEN",1);
759 gMC->Gsatt("FTOB","SEEN",1);
760 gMC->Gsatt("FTOC","SEEN",1);
761 gMC->Gsatt("FLTA","SEEN",1);
762 gMC->Gsatt("FLTB","SEEN",1);
763 gMC->Gsatt("FLTC","SEEN",1);
764 gMC->Gsatt("FPLA","SEEN",1);
765 gMC->Gsatt("FPLB","SEEN",1);
766 gMC->Gsatt("FPLC","SEEN",1);
767 gMC->Gsatt("FSTR","SEEN",1);
768 gMC->Gsatt("FPEA","SEEN",1);
769 gMC->Gsatt("FPEB","SEEN",1);
770 gMC->Gsatt("FPEC","SEEN",1);
772 gMC->Gsatt("FLZ1","SEEN",0);
773 gMC->Gsatt("FLZ2","SEEN",0);
774 gMC->Gsatt("FLZ3","SEEN",0);
775 gMC->Gsatt("FLX1","SEEN",0);
776 gMC->Gsatt("FLX2","SEEN",0);
777 gMC->Gsatt("FLX3","SEEN",0);
778 gMC->Gsatt("FPAD","SEEN",0);
780 gMC->Gdopt("hide", "on");
781 gMC->Gdopt("shad", "on");
782 gMC->Gsatt("*", "fill", 7);
783 gMC->SetClipBox(".");
784 gMC->SetClipBox("*", 0, 1000, -1000, 1000, -1000, 1000);
786 gMC->Gdraw("alic", 40, 30, 0, 12, 9.5, .02, .02);
787 gMC->Gdhead(1111, "Time Of Flight");
788 gMC->Gdman(18, 4, "MAN");
789 gMC->Gdopt("hide","off");
791 //_____________________________________________________________________________
792 void AliTOFv1::DrawDetectorModules()
795 // Draw a shaded view of the TOF detector version 1
798 AliMC* pMC = AliMC::GetMC();
800 //Set ALIC mother transparent
801 pMC->Gsatt("ALIC","SEEN",0);
804 //Set volumes visible
807 // Level 1 for TOF volumes
808 gMC->Gsatt("B077","seen",0);
811 //==========> Level 2
813 gMC->Gsatt("B076","seen",-1); // all B076 sub-levels skipped -
814 gMC->Gsatt("B071","seen",0);
815 gMC->Gsatt("B074","seen",0);
816 gMC->Gsatt("B075","seen",0);
817 gMC->Gsatt("B080","seen",0); // B080 does not has sub-level
821 gMC->Gsatt("B063","seen",-1); // all B063 sub-levels skipped -
822 gMC->Gsatt("B065","seen",-1); // all B065 sub-levels skipped -
823 gMC->Gsatt("B067","seen",-1); // all B067 sub-levels skipped -
824 gMC->Gsatt("B069","seen",-1); // all B069 sub-levels skipped -
825 gMC->Gsatt("B056","seen",0); // B056 does not has sub-levels -
826 gMC->Gsatt("B059","seen",-1); // all B059 sub-levels skipped -
827 gMC->Gsatt("B072","seen",-1); // all B072 sub-levels skipped -
828 gMC->Gsatt("BTR1","seen",0); // BTR1 do not have sub-levels -
829 gMC->Gsatt("BTO1","seen",0);
833 gMC->Gsatt("BTR2","seen",0); // BTR2 does not has sub-levels -
834 gMC->Gsatt("BTO2","seen",0);
837 gMC->Gsatt("BTR3","seen",0); // BTR3 do not have sub-levels -
838 gMC->Gsatt("BTO3","seen",0);
840 // ==================> Level 3
841 // Level 3 of B071 / Level 2 of BTO1
842 gMC->Gsatt("FTOC","seen",-2);
843 gMC->Gsatt("FTOB","seen",-2);
844 gMC->Gsatt("FTOA","seen",-2);
846 // Level 3 of B074 / Level 2 of BTO2
847 // -> cfr previous settings
849 // Level 3 of B075 / Level 2 of BTO3
850 // -> cfr previous settings
852 gMC->Gdopt("hide","on");
853 gMC->Gdopt("shad","on");
854 gMC->Gsatt("*", "fill", 5);
855 gMC->SetClipBox(".");
856 gMC->SetClipBox("*", 0, 1000, 0, 1000, 0, 1000);
858 gMC->Gdraw("alic", 45, 40, 0, 10, 10, .015, .015);
859 gMC->Gdhead(1111,"TOF detector V1");
860 gMC->Gdman(18, 4, "MAN");
861 gMC->Gdopt("hide","off");
864 //_____________________________________________________________________________
865 void AliTOFv1::DrawDetectorStrips()
868 // Draw a shaded view of the TOF strips for version 1
871 AliMC* pMC = AliMC::GetMC();
873 //Set ALIC mother transparent
874 pMC->Gsatt("ALIC","SEEN",0);
877 //Set volumes visible
879 // Level 1 for TOF volumes
880 gMC->Gsatt("B077","seen",0);
882 //==========> Level 2
884 gMC->Gsatt("B076","seen",-1); // all B076 sub-levels skipped -
885 gMC->Gsatt("B071","seen",0);
886 gMC->Gsatt("B074","seen",0);
887 gMC->Gsatt("B075","seen",0);
888 gMC->Gsatt("B080","seen",0); // B080 does not has sub-level
891 gMC->Gsatt("B063","seen",-1); // all B063 sub-levels skipped -
892 gMC->Gsatt("B065","seen",-1); // all B065 sub-levels skipped -
893 gMC->Gsatt("B067","seen",-1); // all B067 sub-levels skipped -
894 gMC->Gsatt("B069","seen",-1); // all B069 sub-levels skipped -
895 gMC->Gsatt("B056","seen",0); // B056 does not has sub-levels -
896 gMC->Gsatt("B059","seen",-1); // all B059 sub-levels skipped -
897 gMC->Gsatt("B072","seen",-1); // all B072 sub-levels skipped -
898 gMC->Gsatt("BTR1","seen",0); // BTR1 do not have sub-levels -
899 gMC->Gsatt("BTO1","seen",0);
901 // ==================> Level 3
902 // Level 3 of B071 / Level 2 of BTO1
903 gMC->Gsatt("FTOC","seen",0);
904 gMC->Gsatt("FTOB","seen",0);
905 gMC->Gsatt("FTOA","seen",0);
907 // Level 3 of B074 / Level 2 of BTO2
908 // -> cfr previous settings
910 // Level 3 of B075 / Level 2 of BTO3
911 // -> cfr previous settings
914 // ==========================> Level 4
915 // Level 4 of B071 / Level 3 of BTO1 / Level 2 of FTOC
916 gMC->Gsatt("FLTC","seen",0);
917 // Level 4 of B071 / Level 3 of BTO1 / Level 2 of FTOB
918 gMC->Gsatt("FLTB","seen",0);
919 // Level 4 of B071 / Level 3 of BTO1 / Level 2 of FTOA
920 gMC->Gsatt("FLTA","seen",0);
922 // Level 4 of B074 / Level 3 of BTO2 / Level 2 of FTOC
923 // -> cfr previous settings
924 // Level 4 of B074 / Level 3 of BTO2 / Level 2 of FTOB
925 // -> cfr previous settings
927 // Level 4 of B075 / Level 3 of BTO3 / Level 2 of FTOC
928 // -> cfr previous settings
930 //======================================> Level 5
931 // Level 5 of B071 / Level 4 of BTO1 / Level 3 of FTOC / Level 2 of FLTC
932 gMC->Gsatt("FALC","seen",0); // no children for FALC
933 gMC->Gsatt("FSTR","seen",-2);
934 gMC->Gsatt("FPEC","seen",0); // no children for FPEC
935 gMC->Gsatt("FECC","seen",0); // no children for FECC
936 gMC->Gsatt("FWAC","seen",0); // no children for FWAC
937 gMC->Gsatt("FAIC","seen",0); // no children for FAIC
939 // Level 5 of B071 / Level 4 of BTO1 / Level 3 of FTOB / Level 2 of FLTB
940 gMC->Gsatt("FALB","seen",0); // no children for FALB
941 //--> gMC->Gsatt("FSTR","seen",-2);
944 // -> cfr previous settings
945 gMC->Gsatt("FPEB","seen",0); // no children for FPEB
946 gMC->Gsatt("FECB","seen",0); // no children for FECB
947 gMC->Gsatt("FWAB","seen",0); // no children for FWAB
948 gMC->Gsatt("FAIB","seen",0); // no children for FAIB
950 // Level 5 of B071 / Level 4 of BTO1 / Level 3 of FTOA / Level 2 of FLTA
951 gMC->Gsatt("FALA","seen",0); // no children for FALB
952 //--> gMC->Gsatt("FSTR","seen",-2);
953 // -> cfr previous settings
954 gMC->Gsatt("FPEA","seen",0); // no children for FPEA
955 gMC->Gsatt("FECA","seen",0); // no children for FECA
956 gMC->Gsatt("FWAA","seen",0); // no children for FWAA
957 gMC->Gsatt("FAIA","seen",0); // no children for FAIA
960 gMC->Gsatt("BTR2","seen",0); // BTR2 does not has sub-levels -
961 gMC->Gsatt("BTO2","seen",0);
964 gMC->Gsatt("BTR3","seen",0); // BTR3 do not have sub-levels -
965 gMC->Gsatt("BTO3","seen",0);
967 // for others Level 5, cfr. previous settings
969 gMC->Gdopt("hide","on");
970 gMC->Gdopt("shad","on");
971 gMC->Gsatt("*", "fill", 5);
972 gMC->SetClipBox(".");
973 gMC->SetClipBox("*", 0, 1000, 0, 1000, 0, 1000);
975 gMC->Gdraw("alic", 45, 40, 0, 10, 10, .015, .015);
976 gMC->Gdhead(1111,"TOF Strips V1");
977 gMC->Gdman(18, 4, "MAN");
978 gMC->Gdopt("hide","off");
981 //_____________________________________________________________________________
982 void AliTOFv1::CreateMaterials()
985 // Define materials for the Time Of Flight
987 AliTOF::CreateMaterials();
990 //_____________________________________________________________________________
991 void AliTOFv1::Init()
994 // Initialise the detector after the geometry has been defined
996 printf("**************************************"
998 "**************************************\n");
999 printf("\n Version 1 of TOF initialing, "
1000 "TOF with holes for PHOS detector\n");
1004 fIdFTOA = gMC->VolId("FTOA");
1005 fIdFTOB = gMC->VolId("FTOB");
1006 fIdFTOC = gMC->VolId("FTOC");
1007 fIdFLTA = gMC->VolId("FLTA");
1008 fIdFLTB = gMC->VolId("FLTB");
1009 fIdFLTC = gMC->VolId("FLTC");
1011 printf("**************************************"
1013 "**************************************\n");
1016 //_____________________________________________________________________________
1017 void AliTOFv1::StepManager()
1020 // Procedure called at each step in the Time Of Flight
1022 TLorentzVector mom, pos;
1023 Float_t xm[3],pm[3],xpad[3],ppad[3];
1024 Float_t hits[13],phi,phid,z;
1026 Int_t sector, plate, padx, padz, strip;
1027 Int_t copy, padzid, padxid, stripid, i;
1028 Int_t *idtmed = fIdtmed->GetArray()-499;
1029 Float_t incidenceAngle;
1031 if(gMC->GetMedium()==idtmed[513] &&
1032 gMC->IsTrackEntering() && gMC->TrackCharge()
1033 && gMC->CurrentVolID(copy)==fIdSens)
1035 // getting information about hit volumes
1037 padzid=gMC->CurrentVolOffID(2,copy);
1040 padxid=gMC->CurrentVolOffID(1,copy);
1043 stripid=gMC->CurrentVolOffID(4,copy);
1046 gMC->TrackPosition(pos);
1047 gMC->TrackMomentum(mom);
1049 // Double_t NormPos=1./pos.Rho();
1050 Double_t normMom=1./mom.Rho();
1052 // getting the cohordinates in pad ref system
1053 xm[0] = (Float_t)pos.X();
1054 xm[1] = (Float_t)pos.Y();
1055 xm[2] = (Float_t)pos.Z();
1057 pm[0] = (Float_t)mom.X()*normMom;
1058 pm[1] = (Float_t)mom.Y()*normMom;
1059 pm[2] = (Float_t)mom.Z()*normMom;
1061 gMC->Gmtod(xm,xpad,1);
1062 gMC->Gmtod(pm,ppad,2);
1064 if(ppad[1]>1.) ppad[1]=1.;
1065 if(ppad[1]<-1.) ppad[1]=-1.;
1067 incidenceAngle = TMath::ACos(ppad[1])*kRaddeg;
1072 if (TMath::Abs(z) <= fZlenA*0.5) plate = 3;
1073 if (z < (fZlenA*0.5+fZlenB) &&
1074 z > fZlenA*0.5) plate = 4;
1075 if (z >-(fZlenA*0.5+fZlenB) &&
1076 z < -fZlenA*0.5) plate = 2;
1077 if (z > (fZlenA*0.5+fZlenB)) plate = 5;
1078 if (z <-(fZlenA*0.5+fZlenB)) plate = 1;
1081 phid = phi*kRaddeg+180.;
1082 sector = Int_t (phid/20.);
1090 hits[6] = mom.Rho();
1095 hits[11]= incidenceAngle;
1096 hits[12]= gMC->Edep();
1104 AddHit(gAlice->CurrentTrack(),vol, hits);