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 1.20 2001/05/04 10:09:48 vicinanz
19 Major upgrades to the strip structure
21 Revision 1.19 2000/12/04 08:48:20 alibrary
22 Fixing problems in the HEAD
24 Revision 1.18 2000/10/02 21:28:17 fca
25 Removal of useless dependecies via forward declarations
27 Revision 1.17 2000/06/06 07:52:09 vicinanz
28 NodeName array dimension enlarged
30 Revision 1.16 2000/05/10 16:52:18 vicinanz
31 New TOF version with holes for PHOS/RICH
33 Revision 1.14.2.1 2000/05/10 09:37:16 vicinanz
34 New version with Holes for PHOS/RICH
36 Revision 1.14 1999/11/05 22:39:06 fca
39 Revision 1.13 1999/11/02 11:26:39 fca
40 added stdlib.h for exit
42 Revision 1.12 1999/11/01 20:41:57 fca
43 Added protections against using the wrong version of FRAME
45 Revision 1.11 1999/10/22 08:04:14 fca
46 Correct improper use of negative parameters
48 Revision 1.10 1999/10/16 19:30:06 fca
49 Corrected Rotation Matrix and CVS log
51 Revision 1.9 1999/10/15 15:35:20 fca
52 New version for frame1099 with and without holes
54 Revision 1.8 1999/09/29 09:24:33 fca
55 Introduction of the Copyright and cvs Log
59 ///////////////////////////////////////////////////////////////////////////////
61 // Time Of Flight: design of C.Williams
63 // This class contains the functions for version 1 of the Time Of Flight //
66 // VERSION WITH 5 MODULES AND TILTED STRIPS
68 // HOLES FOR PHOS DETECTOR
75 // University of Salerno - Italy
78 // University of Bologna - Italy
83 <img src="picts/AliTOFv1Class.gif">
87 ///////////////////////////////////////////////////////////////////////////////
94 #include "TGeometry.h"
97 #include <TLorentzVector.h>
101 #include "AliConst.h"
106 //_____________________________________________________________________________
110 // Default constructor
114 //_____________________________________________________________________________
115 AliTOFv1::AliTOFv1(const char *name, const char *title)
119 // Standard constructor
122 // Check that FRAME is there otherwise we have no place where to
124 AliModule* frame=gAlice->GetModule("FRAME");
126 Error("Ctor","TOF needs FRAME to be present\n");
129 if(frame->IsVersion()!=1) {
130 Error("Ctor","FRAME version 1 needed with this version of TOF\n");
138 //____________________________________________________________________________
139 AliTOFv1::~AliTOFv1()
163 //_____________________________________________________________________________
164 void AliTOFv1::BuildGeometry()
167 // Build TOF ROOT geometry for the ALICE event display
170 const int kColorTOF = 27;
173 top = gAlice->GetGeometry()->GetNode("alice");
175 // Position the different copies
176 const Float_t krTof =(fRmax+fRmin)/2;
177 const Float_t khTof = fRmax-fRmin;
178 const Int_t kNTof = fNTof;
179 const Float_t kPi = TMath::Pi();
180 const Float_t kangle = 2*kPi/kNTof;
183 // Define TOF basic volume
185 char nodeName0[7], nodeName1[7], nodeName2[7];
186 char nodeName3[7], nodeName4[7], rotMatNum[7];
188 new TBRIK("S_TOF_C","TOF box","void",
189 120*0.5,khTof*0.5,fZlenC*0.5);
190 new TBRIK("S_TOF_B","TOF box","void",
191 120*0.5,khTof*0.5,fZlenB*0.5);
192 new TBRIK("S_TOF_A","TOF box","void",
193 120*0.5,khTof*0.5,fZlenA*0.5);
195 for (Int_t nodeNum=1;nodeNum<19;nodeNum++){
198 sprintf(rotMatNum,"rot50%i",nodeNum);
199 sprintf(nodeName0,"FTO00%i",nodeNum);
200 sprintf(nodeName1,"FTO10%i",nodeNum);
201 sprintf(nodeName2,"FTO20%i",nodeNum);
202 sprintf(nodeName3,"FTO30%i",nodeNum);
203 sprintf(nodeName4,"FTO40%i",nodeNum);
206 sprintf(rotMatNum,"rot5%i",nodeNum);
207 sprintf(nodeName0,"FTO0%i",nodeNum);
208 sprintf(nodeName1,"FTO1%i",nodeNum);
209 sprintf(nodeName2,"FTO2%i",nodeNum);
210 sprintf(nodeName3,"FTO3%i",nodeNum);
211 sprintf(nodeName4,"FTO4%i",nodeNum);
214 new TRotMatrix(rotMatNum,rotMatNum,90,-20*nodeNum,90,90-20*nodeNum,0,0);
215 ang = (4.5-nodeNum) * kangle;
218 node = new TNode(nodeName0,nodeName0,"S_TOF_C",krTof*TMath::Cos(ang),krTof*TMath::Sin(ang),299.15,rotMatNum);
219 node->SetLineColor(kColorTOF);
223 node = new TNode(nodeName1,nodeName1,"S_TOF_C",krTof*TMath::Cos(ang),krTof*TMath::Sin(ang),-299.15,rotMatNum);
224 node->SetLineColor(kColorTOF);
228 node = new TNode(nodeName2,nodeName2,"S_TOF_B",krTof*TMath::Cos(ang),krTof*TMath::Sin(ang),146.45,rotMatNum);
229 node->SetLineColor(kColorTOF);
233 node = new TNode(nodeName3,nodeName3,"S_TOF_B",krTof*TMath::Cos(ang),krTof*TMath::Sin(ang),-146.45,rotMatNum);
234 node->SetLineColor(kColorTOF);
237 if (nodeNum<8 || nodeNum>12) {
239 node = new TNode(nodeName4,nodeName4,"S_TOF_A",krTof*TMath::Cos(ang),krTof*TMath::Sin(ang),0.,rotMatNum);
240 node->SetLineColor(kColorTOF);
242 } // Modules A which are not to be installed for PHOS holes.
243 } // end loop on nodeNum
247 //_____________________________________________________________________________
248 void AliTOFv1::CreateGeometry()
251 // Create geometry for Time Of Flight version 0
255 <img src="picts/AliTOFv1.gif">
259 // Creates common geometry
261 AliTOF::CreateGeometry();
264 //_____________________________________________________________________________
265 void AliTOFv1::TOFpc(Float_t xtof, Float_t ytof, Float_t zlenC,
266 Float_t zlenB, Float_t zlenA, Float_t ztof0)
269 // Definition of the Time Of Fligh Resistive Plate Chambers
270 // xFLT, yFLT, zFLT - sizes of TOF modules (large)
272 Float_t ycoor, zcoor;
274 Int_t *idtmed = fIdtmed->GetArray()-499;
277 Float_t hTof = fRmax-fRmin;
279 Float_t radius = fRmin+2.;//cm
283 par[2] = zlenC * 0.5;
284 gMC->Gsvolu("FTOC", "BOX ", idtmed[506], par, 3);
285 par[2] = zlenB * 0.5;
286 gMC->Gsvolu("FTOB", "BOX ", idtmed[506], par, 3);
287 par[2] = zlenA * 0.5;
288 gMC->Gsvolu("FTOA", "BOX ", idtmed[506], par, 3);
291 // Positioning of modules
293 Float_t zcor1 = ztof0 - zlenC*0.5;
294 Float_t zcor2 = ztof0 - zlenC - zlenB*0.5;
297 AliMatrix(idrotm[0], 90., 0., 0., 0., 90,-90.);
298 AliMatrix(idrotm[1], 90.,180., 0., 0., 90, 90.);
299 gMC->Gspos("FTOC", 1, "BTO1", 0, zcor1, 0, idrotm[0], "ONLY");
300 gMC->Gspos("FTOC", 2, "BTO1", 0, -zcor1, 0, idrotm[1], "ONLY");
301 gMC->Gspos("FTOC", 1, "BTO2", 0, zcor1, 0, idrotm[0], "ONLY");
302 gMC->Gspos("FTOC", 2, "BTO2", 0, -zcor1, 0, idrotm[1], "ONLY");
303 gMC->Gspos("FTOC", 1, "BTO3", 0, zcor1, 0, idrotm[0], "ONLY");
304 gMC->Gspos("FTOC", 2, "BTO3", 0, -zcor1, 0, idrotm[1], "ONLY");
306 gMC->Gspos("FTOB", 1, "BTO1", 0, zcor2, 0, idrotm[0], "ONLY");
307 gMC->Gspos("FTOB", 2, "BTO1", 0, -zcor2, 0, idrotm[1], "ONLY");
308 gMC->Gspos("FTOB", 1, "BTO2", 0, zcor2, 0, idrotm[0], "ONLY");
309 gMC->Gspos("FTOB", 2, "BTO2", 0, -zcor2, 0, idrotm[1], "ONLY");
310 gMC->Gspos("FTOB", 1, "BTO3", 0, zcor2, 0, idrotm[0], "ONLY");
311 gMC->Gspos("FTOB", 2, "BTO3", 0, -zcor2, 0, idrotm[1], "ONLY");
313 gMC->Gspos("FTOA", 0, "BTO1", 0, zcor3, 0, idrotm[0], "ONLY");
314 gMC->Gspos("FTOA", 0, "BTO3", 0, zcor3, 0, idrotm[0], "ONLY");
316 Float_t db = 0.5;//cm
317 Float_t xFLT, xFST, yFLT, zFLTA, zFLTB, zFLTC;
325 xFST = xFLT-fDeadBndX*2;//cm
327 // Sizes of MRPC pads
329 Float_t yPad = 0.505;//cm
331 // Large not sensitive volumes with Insensitive Freon
335 if(fDebug) cout << ClassName()
336 << ": ************************* TOF geometry **************************"
339 par[2] = (zFLTA *0.5);
340 gMC->Gsvolu("FLTA", "BOX ", idtmed[512], par, 3); // Insensitive Freon
341 gMC->Gspos ("FLTA", 0, "FTOA", 0., 0., 0., 0, "ONLY");
343 par[2] = (zFLTB * 0.5);
344 gMC->Gsvolu("FLTB", "BOX ", idtmed[512], par, 3); // Insensitive Freon
345 gMC->Gspos ("FLTB", 0, "FTOB", 0., 0., 0., 0, "ONLY");
347 par[2] = (zFLTC * 0.5);
348 gMC->Gsvolu("FLTC", "BOX ", idtmed[512], par, 3); // Insensitive Freon
349 gMC->Gspos ("FLTC", 0, "FTOC", 0., 0., 0., 0, "ONLY");
351 ////////// Layers of Aluminum before and after detector //////////
352 ////////// Aluminum Box for Modules (2.0 mm thickness) /////////
353 ////////// lateral walls not simulated
356 ycoor = -yFLT/2 + par[1];
357 par[2] = (zFLTA *0.5);
358 gMC->Gsvolu("FALA", "BOX ", idtmed[508], par, 3); // Alluminium
359 gMC->Gspos ("FALA", 1, "FLTA", 0., ycoor, 0., 0, "ONLY");
360 gMC->Gspos ("FALA", 2, "FLTA", 0.,-ycoor, 0., 0, "ONLY");
361 par[2] = (zFLTB *0.5);
362 gMC->Gsvolu("FALB", "BOX ", idtmed[508], par, 3); // Alluminium
363 gMC->Gspos ("FALB", 1, "FLTB", 0., ycoor, 0., 0, "ONLY");
364 gMC->Gspos ("FALB", 2, "FLTB", 0.,-ycoor, 0., 0, "ONLY");
365 par[2] = (zFLTC *0.5);
366 gMC->Gsvolu("FALC", "BOX ", idtmed[508], par, 3); // Alluminium
367 gMC->Gspos ("FALC", 1, "FLTC", 0., ycoor, 0., 0, "ONLY");
368 gMC->Gspos ("FALC", 2, "FLTC", 0.,-ycoor, 0., 0, "ONLY");
370 ///////////////// Detector itself //////////////////////
372 const Float_t kdeadBound = fDeadBndZ; //cm non-sensitive between the pad edge
373 //and the boundary of the strip
374 const Int_t knx = fNpadX; // number of pads along x
375 const Int_t knz = fNpadZ; // number of pads along z
376 const Float_t kspace = fSpace; //cm distance from the front plate of the box
378 Float_t zSenStrip = fZpad*fNpadZ;//cm
379 Float_t stripWidth = zSenStrip + 2*kdeadBound;
383 par[2] = stripWidth*0.5;
385 // new description for strip volume
386 // -- all constants are expressed in cm
387 // heigth of different layers
388 const Float_t khhony = 1. ; // heigth of HONY Layer
389 const Float_t khpcby = 0.15 ; // heigth of PCB Layer
390 const Float_t khmyly = 0.035 ; // heigth of MYLAR Layer
391 const Float_t khgraphy = 0.02 ; // heigth of GRAPHITE Layer
392 const Float_t khglasseiy = 0.32; // 2.2 Ext. Glass + 1. Semi Int. Glass (mm)
393 const Float_t khsensmy = 0.11 ; // heigth of Sensitive Freon Mixture
394 const Float_t kwsensmz = 2*3.5 ; // cm
395 const Float_t klsensmx = 48*2.5; // cm
396 const Float_t kwpadz = 3.5; // cm z dimension of the FPAD volume
397 const Float_t klpadx = 2.5; // cm x dimension of the FPAD volume
399 // heigth of the FSTR Volume (the strip volume)
400 const Float_t khstripy = 2*(khhony+khpcby+khmyly+khgraphy+khglasseiy)+khsensmy;
401 // width of the FSTR Volume (the strip volume)
402 const Float_t kwstripz = 10.;
403 // length of the FSTR Volume (the strip volume)
404 const Float_t klstripx = 122.;
406 Float_t parfp[3]={klstripx*0.5,khstripy*0.5,kwstripz*0.5};
407 // coordinates of the strip center in the strip reference frame; used for positioning
408 // internal strip volumes
409 Float_t posfp[3]={0.,0.,0.};
411 // FSTR volume definition and filling this volume with non sensitive Gas Mixture
412 gMC->Gsvolu("FSTR","BOX",idtmed[512],parfp,3);
413 //-- HONY Layer definition
415 parfp[1] = khhony*0.5;
417 gMC->Gsvolu("FHON","BOX",idtmed[503],parfp,3);
418 // positioning 2 HONY Layers on FSTR volume
419 posfp[1]=-khstripy*0.5+parfp[1];
420 gMC->Gspos("FHON",1,"FSTR",0., posfp[1],0.,0,"ONLY");
421 gMC->Gspos("FHON",2,"FSTR",0.,-posfp[1],0.,0,"ONLY");
423 //-- PCB Layer definition
424 parfp[1] = khpcby*0.5;
425 gMC->Gsvolu("FPCB","BOX",idtmed[504],parfp,3);
426 // positioning 2 PCB Layers on FSTR volume
427 posfp[1]=-khstripy*0.5+khhony+parfp[1];
428 gMC->Gspos("FPCB",1,"FSTR",0., posfp[1],0.,0,"ONLY");
429 gMC->Gspos("FPCB",2,"FSTR",0.,-posfp[1],0.,0,"ONLY");
431 //-- MYLAR Layer definition
432 parfp[1] = khmyly*0.5;
433 gMC->Gsvolu("FMYL","BOX",idtmed[511],parfp,3);
434 // positioning 2 MYLAR Layers on FSTR volume
435 posfp[1] = -khstripy*0.5+khhony+khpcby+parfp[1];
436 gMC->Gspos("FMYL",1,"FSTR",0., posfp[1],0.,0,"ONLY");
437 gMC->Gspos("FMYL",2,"FSTR",0.,-posfp[1],0.,0,"ONLY");
439 //-- Graphite Layer definition
440 parfp[1] = khgraphy*0.5;
441 gMC->Gsvolu("FGRP","BOX",idtmed[502],parfp,3);
442 // positioning 2 Graphite Layers on FSTR volume
443 posfp[1] = -khstripy*0.5+khhony+khpcby+khmyly+parfp[1];
444 gMC->Gspos("FGRP",1,"FSTR",0., posfp[1],0.,0,"ONLY");
445 gMC->Gspos("FGRP",2,"FSTR",0.,-posfp[1],0.,0,"ONLY");
447 //-- Glass (EXT. +Semi INT.) Layer definition
448 parfp[1] = khglasseiy*0.5;
449 gMC->Gsvolu("FGLA","BOX",idtmed[514],parfp,3);
450 // positioning 2 Glass Layers on FSTR volume
451 posfp[1] = -khstripy*0.5+khhony+khpcby+khmyly+khgraphy+parfp[1];
452 gMC->Gspos("FGLA",1,"FSTR",0., posfp[1],0.,0,"ONLY");
453 gMC->Gspos("FGLA",2,"FSTR",0.,-posfp[1],0.,0,"ONLY");
455 //-- Sensitive Mixture Layer definition
456 parfp[0] = klsensmx*0.5;
457 parfp[1] = khsensmy*0.5;
458 parfp[2] = kwsensmz*0.5;
459 gMC->Gsvolu("FSEN","BOX",idtmed[513],parfp,3);
460 // positioning the sensitive gas Layer on FSTR volume
461 gMC->Gspos("FSEN",0,"FSTR",0.,0.,0.,0,"ONLY");
463 // dividing FSEN along z in knz=2 and along x in knx=48
464 gMC->Gsdvn("FSEZ","FSEN",knz,3);
465 gMC->Gsdvn("FSEX","FSEZ",knx,1);
467 // FPAD volume definition
468 parfp[0] = klpadx*0.5;
469 parfp[1] = khsensmy*0.5;
470 parfp[2] = kwpadz*0.5;
471 gMC->Gsvolu("FPAD","BOX",idtmed[513],parfp,3);
472 // positioning the FPAD volumes on previous divisions
473 gMC->Gspos("FPAD",0,"FSEX",0.,0.,0.,0,"ONLY");
475 //// Positioning the Strips (FSTR) in the FLT volumes /////
479 Float_t t = zFLTC+zFLTB+zFLTA*0.5+ 2*db;//Half Width of Barrel
481 Float_t gap = fGapA; //cm distance between the strip axis
487 ycoor = -14.5 + kspace ; //2 cm over front plate
489 AliMatrix (idrotm[0], 90., 0.,90.,90.,0., 90.);
490 gMC->Gspos("FSTR",j,"FLTA",0.,ycoor, 0.,idrotm[0],"ONLY");
492 printf("%f, St. %2i, Pl.3 ",ang*kRaddeg,i);
493 printf("y = %f, z = %f, zpos = %f \n",ycoor,zcoor,zpos);
497 Int_t upDown = -1; // upDown=-1 -> Upper strip
498 // upDown=+1 -> Lower strip
500 ang = atan(zcoor/radius);
502 AliMatrix (idrotm[nrot], 90., 0.,90.-ang,90.,-ang, 90.);
503 AliMatrix (idrotm[nrot+1],90.,180.,90.+ang,90., ang, 90.);
505 ycoor = -14.5+ kspace; //2 cm over front plate
506 ycoor += (1-(upDown+1)/2)*gap;
507 gMC->Gspos("FSTR",j ,"FLTA",0.,ycoor, zcoor,idrotm[nrot], "ONLY");
508 gMC->Gspos("FSTR",j+1,"FLTA",0.,ycoor,-zcoor,idrotm[nrot+1],"ONLY");
510 printf("%f, St. %2i, Pl.3 ",ang*kRaddeg,i);
511 printf("y = %f, z = %f, zpos = %f \n",ycoor,zcoor,zpos);
514 upDown*= -1; // Alternate strips
515 zcoor = zcoor-(zSenStrip/2)/TMath::Cos(ang)-
516 upDown*gap*TMath::Tan(ang)-
517 (zSenStrip/2)/TMath::Cos(ang);
518 } while (zcoor-(stripWidth/2)*TMath::Cos(ang)>-t+zFLTC+zFLTB+db*2);
520 zcoor = zcoor+(zSenStrip/2)/TMath::Cos(ang)+
521 upDown*gap*TMath::Tan(ang)+
522 (zSenStrip/2)/TMath::Cos(ang);
525 zcoor = zcoor-(zSenStrip/2)/TMath::Cos(ang)-
526 upDown*gap*TMath::Tan(ang)-
527 (zSenStrip/2)/TMath::Cos(ang);
529 ang = atan(zcoor/radius);
531 AliMatrix (idrotm[nrot], 90., 0.,90.-ang,90.,-ang, 90.);
532 AliMatrix (idrotm[nrot+1],90.,180.,90.+ang,90., ang, 90.);
535 ycoor = -14.5+ kspace; //2 cm over front plate
536 ycoor += (1-(upDown+1)/2)*gap;
537 gMC->Gspos("FSTR",j ,"FLTA",0.,ycoor, zcoor,idrotm[nrot], "ONLY");
538 gMC->Gspos("FSTR",j+1,"FLTA",0.,ycoor,-zcoor,idrotm[nrot+1],"ONLY");
540 printf("%f, St. %2i, Pl.3 ",ang*kRaddeg,i);
541 printf("y = %f, z = %f, zpos = %f \n",ycoor,zcoor,zpos);
543 ycoor = -hTof/2.+ kspace;//2 cm over front plate
550 Float_t deadRegion = 1.0;//cm
552 zpos = zcoor - (zSenStrip/2)/TMath::Cos(ang)-
553 upDown*gap*TMath::Tan(ang)-
554 (zSenStrip/2)/TMath::Cos(ang)-
555 deadRegion/TMath::Cos(ang);
557 ang = atan(zpos/radius);
559 AliMatrix (idrotm[nrot], 90., 0., 90.-ang,90.,ang, 270.);
561 ycoor = -hTof*0.5+ kspace ; //2 cm over front plate
562 ycoor += (1-(upDown+1)/2)*gap;
563 zcoor = zpos+(zFLTA*0.5+zFLTB*0.5+db); // Moves to the system of the modulus FLTB
564 gMC->Gspos("FSTR",i, "FLTB", 0., ycoor, zcoor,idrotm[nrot], "ONLY");
566 printf("%f, St. %2i, Pl.4 ",ang*kRaddeg,i);
567 printf("y = %f, z = %f, zpos = %f \n",ycoor,zcoor,zpos);
573 zpos = zpos - (zSenStrip/2)/TMath::Cos(ang)-
574 upDown*gap*TMath::Tan(ang)-
575 (zSenStrip/2)/TMath::Cos(ang);
576 ang = atan(zpos/radius);
578 AliMatrix (idrotm[nrot], 90., 0., 90.-ang,90.,ang, 270.);
580 ycoor = -hTof*0.5+ kspace ; //2 cm over front plate
581 ycoor += (1-(upDown+1)/2)*gap;
582 zcoor = zpos+(zFLTA*0.5+zFLTB*0.5+db); // Moves to the system of the modulus FLTB
583 gMC->Gspos("FSTR",i, "FLTB", 0., ycoor, zcoor,idrotm[nrot], "ONLY");
585 printf("%f, St. %2i, Pl.4 ",ang*kRaddeg,i);
586 printf("y = %f, z = %f, zpos = %f \n",ycoor,zcoor,zpos);
590 } while (TMath::Abs(ang*kRaddeg)<22.5);
591 //till we reach a tilting angle of 22.5 degrees
593 ycoor = -hTof*0.5+ kspace ; //2 cm over front plate
594 zpos = zpos - zSenStrip/TMath::Cos(ang);
597 ang = atan(zpos/radius);
599 AliMatrix (idrotm[nrot], 90., 0., 90.-ang,90.,ang, 270.);
601 zcoor = zpos+(zFLTB/2+zFLTA/2+db);
602 gMC->Gspos("FSTR",i, "FLTB", 0., ycoor, zcoor,idrotm[nrot], "ONLY");
603 zpos = zpos - zSenStrip/TMath::Cos(ang);
604 printf("%f, St. %2i, Pl.4 ",ang*kRaddeg,i);
605 printf("y = %f, z = %f, zpos = %f \n",ycoor,zcoor,zpos);
608 } while (zpos-stripWidth*0.5/TMath::Cos(ang)>-t+zFLTC+db);
612 zpos = zpos + zSenStrip/TMath::Cos(ang);
614 zpos = zpos - (zSenStrip/2)/TMath::Cos(ang)+
616 (zSenStrip/2)/TMath::Cos(ang);
620 ycoor= -hTof*0.5+kspace+gap;
624 ang = atan(zpos/radius);
626 AliMatrix (idrotm[nrot], 90., 0., 90.-ang,90.,ang, 270.);
628 zcoor = zpos+(zFLTC*0.5+zFLTB+zFLTA*0.5+db*2);
629 gMC->Gspos("FSTR",i, "FLTC", 0., ycoor, zcoor,idrotm[nrot], "ONLY");
631 printf("%f, St. %2i, Pl.5 ",ang*kRaddeg,i);
632 printf("y = %f, z = %f, zpos = %f \n",ycoor,zcoor,zpos);
634 zpos = zpos - zSenStrip/TMath::Cos(ang);
635 } while (zpos-stripWidth*TMath::Cos(ang)*0.5>-t);
638 ////////// Layers after strips /////////////////
639 // honeycomb (Polyethilene) Layer after (1.2cm)
641 Float_t overSpace = fOverSpc;//cm
645 par[2] = (zFLTA *0.5);
646 ycoor = -yFLT/2 + overSpace + par[1];
647 gMC->Gsvolu("FPEA", "BOX ", idtmed[503], par, 3); // Hony
648 gMC->Gspos ("FPEA", 0, "FLTA", 0., ycoor, 0., 0, "ONLY");
649 par[2] = (zFLTB *0.5);
650 gMC->Gsvolu("FPEB", "BOX ", idtmed[503], par, 3); // Hony
651 gMC->Gspos ("FPEB", 0, "FLTB", 0., ycoor, 0., 0, "ONLY");
652 par[2] = (zFLTC *0.5);
653 gMC->Gsvolu("FPEC", "BOX ", idtmed[503], par, 3); // Hony
654 gMC->Gspos ("FPEC", 0, "FLTC", 0., ycoor, 0., 0, "ONLY");
656 // Electronics (Cu) after
659 par[1] = 1.43*0.05*0.5; // 5% of X0
660 par[2] = (zFLTA *0.5);
662 gMC->Gsvolu("FECA", "BOX ", idtmed[501], par, 3); // Cu
663 gMC->Gspos ("FECA", 0, "FLTA", 0., ycoor, 0., 0, "ONLY");
664 par[2] = (zFLTB *0.5);
665 gMC->Gsvolu("FECB", "BOX ", idtmed[501], par, 3); // Cu
666 gMC->Gspos ("FECB", 0, "FLTB", 0., ycoor, 0., 0, "ONLY");
667 par[2] = (zFLTC *0.5);
668 gMC->Gsvolu("FECC", "BOX ", idtmed[501], par, 3); // Cu
669 gMC->Gspos ("FECC", 0, "FLTC", 0., ycoor, 0., 0, "ONLY");
671 // cooling WAter after
674 par[1] = 36.1*0.02*0.5; // 2% of X0
675 par[2] = (zFLTA *0.5);
677 gMC->Gsvolu("FWAA", "BOX ", idtmed[515], par, 3); // Water
678 gMC->Gspos ("FWAA", 0, "FLTA", 0., ycoor, 0., 0, "ONLY");
679 par[2] = (zFLTB *0.5);
680 gMC->Gsvolu("FWAB", "BOX ", idtmed[515], par, 3); // Water
681 gMC->Gspos ("FWAB", 0, "FLTB", 0., ycoor, 0., 0, "ONLY");
682 par[2] = (zFLTC *0.5);
683 gMC->Gsvolu("FWAC", "BOX ", idtmed[515], par, 3); // Water
684 gMC->Gspos ("FWAC", 0, "FLTC", 0., ycoor, 0., 0, "ONLY");
689 par[1] = (yFLT/2-ycoor-0.2)*0.5; // Aluminum layer considered (0.2 cm)
690 par[2] = (zFLTA *0.5);
692 gMC->Gsvolu("FAIA", "BOX ", idtmed[500], par, 3); // Air
693 gMC->Gspos ("FAIA", 0, "FLTA", 0., ycoor, 0., 0, "ONLY");
694 par[2] = (zFLTB *0.5);
695 gMC->Gsvolu("FAIB", "BOX ", idtmed[500], par, 3); // Air
696 gMC->Gspos ("FAIB", 0, "FLTB", 0., ycoor, 0., 0, "ONLY");
697 par[2] = (zFLTC *0.5);
698 gMC->Gsvolu("FAIC", "BOX ", idtmed[500], par, 3); // Air
699 gMC->Gspos ("FAIC", 0, "FLTC", 0., ycoor, 0., 0, "ONLY");
701 //Back Plate honycomb (2cm)
705 ycoor = yFLT/2 - par[1];
706 gMC->Gsvolu("FBPA", "BOX ", idtmed[503], par, 3); // Hony
707 gMC->Gspos ("FBPA", 0, "FLTA", 0., ycoor, 0., 0, "ONLY");
708 gMC->Gsvolu("FBPB", "BOX ", idtmed[503], par, 3); // Hony
709 gMC->Gspos ("FBPB", 0, "FLTB", 0., ycoor, 0., 0, "ONLY");
710 gMC->Gsvolu("FBPC", "BOX ", idtmed[503], par, 3); // Hony
711 gMC->Gspos ("FBPC", 0, "FLTC", 0., ycoor, 0., 0, "ONLY");
715 //_____________________________________________________________________________
716 void AliTOFv1::DrawModule()
719 // Draw a shaded view of the Time Of Flight version 1
721 // Set everything unseen
722 gMC->Gsatt("*", "seen", -1);
724 // Set ALIC mother transparent
725 gMC->Gsatt("ALIC","SEEN",0);
727 // Set the volumes visible
728 gMC->Gsatt("ALIC","SEEN",0);
730 gMC->Gsatt("FTOA","SEEN",1);
731 gMC->Gsatt("FTOB","SEEN",1);
732 gMC->Gsatt("FTOC","SEEN",1);
733 gMC->Gsatt("FLTA","SEEN",1);
734 gMC->Gsatt("FLTB","SEEN",1);
735 gMC->Gsatt("FLTC","SEEN",1);
736 gMC->Gsatt("FPLA","SEEN",1);
737 gMC->Gsatt("FPLB","SEEN",1);
738 gMC->Gsatt("FPLC","SEEN",1);
739 gMC->Gsatt("FSTR","SEEN",1);
740 gMC->Gsatt("FPEA","SEEN",1);
741 gMC->Gsatt("FPEB","SEEN",1);
742 gMC->Gsatt("FPEC","SEEN",1);
744 gMC->Gsatt("FLZ1","SEEN",0);
745 gMC->Gsatt("FLZ2","SEEN",0);
746 gMC->Gsatt("FLZ3","SEEN",0);
747 gMC->Gsatt("FLX1","SEEN",0);
748 gMC->Gsatt("FLX2","SEEN",0);
749 gMC->Gsatt("FLX3","SEEN",0);
750 gMC->Gsatt("FPAD","SEEN",0);
752 gMC->Gdopt("hide", "on");
753 gMC->Gdopt("shad", "on");
754 gMC->Gsatt("*", "fill", 7);
755 gMC->SetClipBox(".");
756 gMC->SetClipBox("*", 0, 1000, -1000, 1000, -1000, 1000);
758 gMC->Gdraw("alic", 40, 30, 0, 12, 9.5, .02, .02);
759 gMC->Gdhead(1111, "Time Of Flight");
760 gMC->Gdman(18, 4, "MAN");
761 gMC->Gdopt("hide","off");
764 //_____________________________________________________________________________
765 void AliTOFv1::CreateMaterials()
768 // Define materials for the Time Of Flight
770 AliTOF::CreateMaterials();
773 //_____________________________________________________________________________
774 void AliTOFv1::Init()
777 // Initialise the detector after the geometry has been defined
779 printf("**************************************"
781 "**************************************\n");
782 printf("\n Version 1 of TOF initialing, "
783 "TOF with holes for PHOS detector\n");
787 fIdFTOA = gMC->VolId("FTOA");
788 fIdFTOB = gMC->VolId("FTOB");
789 fIdFTOC = gMC->VolId("FTOC");
790 fIdFLTA = gMC->VolId("FLTA");
791 fIdFLTB = gMC->VolId("FLTB");
792 fIdFLTC = gMC->VolId("FLTC");
794 printf("**************************************"
796 "**************************************\n");
799 //_____________________________________________________________________________
800 void AliTOFv1::StepManager()
803 // Procedure called at each step in the Time Of Flight
805 TLorentzVector mom, pos;
806 Float_t xm[3],pm[3],xpad[3],ppad[3];
807 Float_t hits[13],phi,phid,z;
809 Int_t sector, plate, padx, padz, strip;
810 Int_t copy, padzid, padxid, stripid, i;
811 Int_t *idtmed = fIdtmed->GetArray()-499;
812 Float_t incidenceAngle;
814 if(gMC->GetMedium()==idtmed[513] &&
815 gMC->IsTrackEntering() && gMC->TrackCharge()
816 && gMC->CurrentVolID(copy)==fIdSens)
818 // getting information about hit volumes
820 padzid=gMC->CurrentVolOffID(2,copy);
823 padxid=gMC->CurrentVolOffID(1,copy);
826 stripid=gMC->CurrentVolOffID(4,copy);
829 gMC->TrackPosition(pos);
830 gMC->TrackMomentum(mom);
832 // Double_t NormPos=1./pos.Rho();
833 Double_t normMom=1./mom.Rho();
835 // getting the cohordinates in pad ref system
836 xm[0] = (Float_t)pos.X();
837 xm[1] = (Float_t)pos.Y();
838 xm[2] = (Float_t)pos.Z();
840 pm[0] = (Float_t)mom.X()*normMom;
841 pm[1] = (Float_t)mom.Y()*normMom;
842 pm[2] = (Float_t)mom.Z()*normMom;
844 gMC->Gmtod(xm,xpad,1);
845 gMC->Gmtod(pm,ppad,2);
847 incidenceAngle = TMath::ACos(ppad[1])*kRaddeg;
852 if (TMath::Abs(z) <= fZlenA*0.5) plate = 3;
853 if (z < (fZlenA*0.5+fZlenB) &&
854 z > fZlenA*0.5) plate = 4;
855 if (z >-(fZlenA*0.5+fZlenB) &&
856 z < -fZlenA*0.5) plate = 2;
857 if (z > (fZlenA*0.5+fZlenB)) plate = 5;
858 if (z <-(fZlenA*0.5+fZlenB)) plate = 1;
861 phid = phi*kRaddeg+180.;
862 sector = Int_t (phid/20.);
875 hits[11]= incidenceAngle;
876 hits[12]= gMC->Edep();
884 AddHit(gAlice->CurrentTrack(),vol, hits);