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 1.18 2000/12/04 08:48:20 alibrary
19 Fixing problems in the HEAD
21 Revision 1.17 2000/10/02 21:28:17 fca
22 Removal of useless dependecies via forward declarations
24 Revision 1.16 2000/05/10 16:52:18 vicinanz
25 New TOF version with holes for PHOS/RICH
27 Revision 1.14.2.1 2000/05/10 09:37:16 vicinanz
28 New version with Holes for PHOS/RICH
30 Revision 1.14 1999/11/05 22:39:06 fca
33 Revision 1.13 1999/11/02 11:26:39 fca
34 added stdlib.h for exit
36 Revision 1.12 1999/11/01 20:41:57 fca
37 Added protections against using the wrong version of FRAME
39 Revision 1.11 1999/10/22 08:04:14 fca
40 Correct improper use of negative parameters
42 Revision 1.10 1999/10/16 19:30:06 fca
43 Corrected Rotation Matrix and CVS log
45 Revision 1.9 1999/10/15 15:35:20 fca
46 New version for frame1099 with and without holes
48 Revision 1.8 1999/09/29 09:24:33 fca
49 Introduction of the Copyright and cvs Log
53 ///////////////////////////////////////////////////////////////////////////////
55 // Time Of Flight: design of C.Williams FCA //
56 // This class contains the functions for version 1 of the Time Of Flight //
59 // VERSION WITH 5 MODULES AND TILTED STRIPS
61 // FULL COVERAGE VERSION
68 // University of Salerno - Italy
71 // University of Bologna - Italy
76 <img src="picts/AliTOFv0Class.gif">
80 ///////////////////////////////////////////////////////////////////////////////
87 #include "TGeometry.h"
90 #include <TLorentzVector.h>
97 //_____________________________________________________________________________
101 // Default constructor
105 // Check that FRAME is there otherwise we have no place where to
107 AliModule* frame=gAlice->GetModule("FRAME");
109 Error("Ctor","TOF needs FRAME to be present\n");
112 if(frame->IsVersion()!=1) {
113 Error("Ctor","FRAME version 1 needed with this version of TOF\n");
120 //_____________________________________________________________________________
121 AliTOFv0::AliTOFv0(const char *name, const char *title)
125 // Standard constructor
129 //____________________________________________________________________________
130 AliTOFv0::~AliTOFv0()
154 //_____________________________________________________________________________
155 void AliTOFv0::BuildGeometry()
157 // Build TOF ROOT geometry for the ALICE event viewver
160 const int kColorTOF = 27;
163 top = gAlice->GetGeometry()->GetNode("alice");
165 // Position the different copies
166 const Float_t krTof =(fRmax+fRmin)/2;
167 const Float_t khTof = fRmax-fRmin;
168 const Int_t kNTof = fNTof;
169 const Float_t kPi = TMath::Pi();
170 const Float_t kangle = 2*kPi/kNTof;
173 // Define TOF basic volume
175 char nodeName0[7], nodeName1[7], nodeName2[7];
176 char nodeName3[7], nodeName4[7], rotMatNum[7];
178 new TBRIK("S_TOF_C","TOF box","void",
179 120*0.5,khTof*0.5,fZlenC*0.5);
180 new TBRIK("S_TOF_B","TOF box","void",
181 120*0.5,khTof*0.5,fZlenB*0.5);
182 new TBRIK("S_TOF_A","TOF box","void",
183 120*0.5,khTof*0.5,fZlenA*0.5);
185 for (Int_t nodeNum=1;nodeNum<19;nodeNum++){
188 sprintf(rotMatNum,"rot50%i",nodeNum);
189 sprintf(nodeName0,"FTO00%i",nodeNum);
190 sprintf(nodeName1,"FTO10%i",nodeNum);
191 sprintf(nodeName2,"FTO20%i",nodeNum);
192 sprintf(nodeName3,"FTO30%i",nodeNum);
193 sprintf(nodeName4,"FTO40%i",nodeNum);
196 sprintf(rotMatNum,"rot5%i",nodeNum);
197 sprintf(nodeName0,"FTO0%i",nodeNum);
198 sprintf(nodeName1,"FTO1%i",nodeNum);
199 sprintf(nodeName2,"FTO2%i",nodeNum);
200 sprintf(nodeName3,"FTO3%i",nodeNum);
201 sprintf(nodeName4,"FTO4%i",nodeNum);
204 new TRotMatrix(rotMatNum,rotMatNum,90,-20*nodeNum,90,90-20*nodeNum,0,0);
205 ang = (4.5-nodeNum) * kangle;
208 node = new TNode(nodeName0,nodeName0,"S_TOF_C",krTof*TMath::Cos(ang),krTof*TMath::Sin(ang),299.15,rotMatNum);
209 node->SetLineColor(kColorTOF);
213 node = new TNode(nodeName1,nodeName1,"S_TOF_C",krTof*TMath::Cos(ang),krTof*TMath::Sin(ang),-299.15,rotMatNum);
214 node->SetLineColor(kColorTOF);
218 node = new TNode(nodeName2,nodeName2,"S_TOF_B",krTof*TMath::Cos(ang),krTof*TMath::Sin(ang),146.45,rotMatNum);
219 node->SetLineColor(kColorTOF);
223 node = new TNode(nodeName3,nodeName3,"S_TOF_B",krTof*TMath::Cos(ang),krTof*TMath::Sin(ang),-146.45,rotMatNum);
224 node->SetLineColor(kColorTOF);
228 node = new TNode(nodeName4,nodeName4,"S_TOF_A",krTof*TMath::Cos(ang),krTof*TMath::Sin(ang),0.,rotMatNum);
229 node->SetLineColor(kColorTOF);
234 //_____________________________________________________________________________
235 void AliTOFv0::CreateGeometry()
238 // Create geometry for Time Of Flight version 0
242 <img src="picts/AliTOFv0.gif">
246 // Creates common geometry
248 AliTOF::CreateGeometry();
251 //_____________________________________________________________________________
252 void AliTOFv0::TOFpc(Float_t xtof, Float_t ytof, Float_t zlenC,
253 Float_t zlenB, Float_t zlenA, Float_t ztof0)
256 // Definition of the Time Of Fligh Resistive Plate Chambers
257 // xFLT, yFLT, zFLT - sizes of TOF modules (large)
259 Float_t ycoor, zcoor;
261 Int_t *idtmed = fIdtmed->GetArray()-499;
265 Float_t radius = fRmin+2.;//cm
269 par[2] = zlenC * 0.5;
270 gMC->Gsvolu("FTOC", "BOX ", idtmed[506], par, 3);
271 par[2] = zlenB * 0.5;
272 gMC->Gsvolu("FTOB", "BOX ", idtmed[506], par, 3);
273 par[2] = zlenA * 0.5;
274 gMC->Gsvolu("FTOA", "BOX ", idtmed[506], par, 3);
277 // Positioning of modules
279 Float_t zcor1 = ztof0 - zlenC*0.5;
280 Float_t zcor2 = ztof0 - zlenC - zlenB*0.5;
283 AliMatrix(idrotm[0], 90., 0., 0., 0., 90, -90.);
284 AliMatrix(idrotm[1], 90., 180., 0., 0., 90, 90.);
285 gMC->Gspos("FTOC", 1, "BTO1", 0, zcor1, 0, idrotm[0], "ONLY");
286 gMC->Gspos("FTOC", 2, "BTO1", 0, -zcor1, 0, idrotm[1], "ONLY");
287 gMC->Gspos("FTOC", 1, "BTO2", 0, zcor1, 0, idrotm[0], "ONLY");
288 gMC->Gspos("FTOC", 2, "BTO2", 0, -zcor1, 0, idrotm[1], "ONLY");
289 gMC->Gspos("FTOC", 1, "BTO3", 0, zcor1, 0, idrotm[0], "ONLY");
290 gMC->Gspos("FTOC", 2, "BTO3", 0, -zcor1, 0, idrotm[1], "ONLY");
292 gMC->Gspos("FTOB", 1, "BTO1", 0, zcor2, 0, idrotm[0], "ONLY");
293 gMC->Gspos("FTOB", 2, "BTO1", 0, -zcor2, 0, idrotm[1], "ONLY");
294 gMC->Gspos("FTOB", 1, "BTO2", 0, zcor2, 0, idrotm[0], "ONLY");
295 gMC->Gspos("FTOB", 2, "BTO2", 0, -zcor2, 0, idrotm[1], "ONLY");
296 gMC->Gspos("FTOB", 1, "BTO3", 0, zcor2, 0, idrotm[0], "ONLY");
297 gMC->Gspos("FTOB", 2, "BTO3", 0, -zcor2, 0, idrotm[1], "ONLY");
299 gMC->Gspos("FTOA", 0, "BTO1", 0, zcor3, 0, idrotm[0], "ONLY");
300 gMC->Gspos("FTOA", 0, "BTO2", 0, zcor3, 0, idrotm[0], "ONLY");
301 gMC->Gspos("FTOA", 0, "BTO3", 0, zcor3, 0, idrotm[0], "ONLY");
303 Float_t db = 0.5;//cm
304 Float_t xFLT, yFLT, zFLTA, zFLTB, zFLTC;
308 zFLTA = zlenA - db*0.5;
309 zFLTB = zlenB - db*0.5;
310 zFLTC = zlenC - db*0.5;
312 // Sizes of MRPC pads
314 Float_t yPad = 0.505;//cm
316 // Large not sensitive volumes with Insensitive Freon
320 cout <<"************************* TOF geometry **************************"<<endl;
322 par[2] = (zFLTA *0.5);
323 gMC->Gsvolu("FLTA", "BOX ", idtmed[512], par, 3); // Insensitive Freon
324 gMC->Gspos("FLTA", 0, "FTOA", 0., 0., 0., 0, "ONLY");
326 par[2] = (zFLTB * 0.5);
327 gMC->Gsvolu("FLTB", "BOX ", idtmed[512], par, 3); // Insensitive Freon
328 gMC->Gspos("FLTB", 0, "FTOB", 0., 0., 0., 0, "ONLY");
330 par[2] = (zFLTC * 0.5);
331 gMC->Gsvolu("FLTC", "BOX ", idtmed[512], par, 3); // Insensitive Freon
332 gMC->Gspos("FLTC", 0, "FTOC", 0., 0., 0., 0, "ONLY");
334 ////////// Layers of Aluminum before and after detector //////////
335 ////////// Aluminum Box for Modules (2.0 mm thickness) /////////
336 ////////// lateral walls not simulated
339 ycoor = -yFLT/2 + par[1];
340 par[2] = (zFLTA *0.5);
341 gMC->Gsvolu("FALA", "BOX ", idtmed[508], par, 3); // Alluminium
342 gMC->Gspos("FALA", 1, "FLTA", 0., ycoor, 0., 0, "ONLY");
343 gMC->Gspos("FALA", 2, "FLTA", 0.,-ycoor, 0., 0, "ONLY");
344 par[2] = (zFLTB *0.5);
345 gMC->Gsvolu("FALB", "BOX ", idtmed[508], par, 3); // Alluminium
346 gMC->Gspos("FALB", 1, "FLTB", 0., ycoor, 0., 0, "ONLY");
347 gMC->Gspos("FALB", 2, "FLTB", 0.,-ycoor, 0., 0, "ONLY");
348 par[2] = (zFLTC *0.5);
349 gMC->Gsvolu("FALC", "BOX ", idtmed[508], par, 3); // Alluminium
350 gMC->Gspos("FALC", 1, "FLTC", 0., ycoor, 0., 0, "ONLY");
351 gMC->Gspos("FALC", 2, "FLTC", 0.,-ycoor, 0., 0, "ONLY");
353 ///////////////// Detector itself //////////////////////
355 Float_t stripWidth = 10.0;//cm
356 const Float_t kdeadBound = 1.5;//cm non-sensitive between the pad edge
357 //and the boundary of the strip
358 const Int_t knx = 48; // number of pads along x
359 const Int_t knz = 2; // number of pads along z
360 const Float_t kspace= 5.5; //cm distance from the front plate of the box
363 zSenStrip = stripWidth-2*kdeadBound;//cm
367 par[2] = stripWidth/2.;
369 // new description for strip volume
370 // -- all constants are expressed in cm
371 // heigth of different layers
372 const Float_t khhony = 1. ; // heigth of HONY Layer
373 const Float_t khpcby = 0.15 ; // heigth of PCB Layer
374 const Float_t khmyly = 0.035 ; // heigth of MYLAR Layer
375 const Float_t khgraphy = 0.02 ; // heigth of GRAPHITE Layer
376 const Float_t khglasseiy = 0.32; // 2.2 Ext. Glass + 1. Semi Int. Glass (mm)
377 const Float_t khsensmy = 0.11 ; // heigth of Sensitive Freon Mixture
378 const Float_t kwsensmz = 2*3.5 ; // cm
379 const Float_t klsensmx = 48*2.5; // cm
380 const Float_t kwpadz = 3.5; // cm z dimension of the FPAD volume
381 const Float_t klpadx = 2.5; // cm x dimension of the FPAD volume
383 // heigth of the FSTR Volume (the strip volume)
384 const Float_t khstripy = 2*(khhony+khpcby+khmyly+khgraphy+khglasseiy)+khsensmy;
385 // width of the FSTR Volume (the strip volume)
386 const Float_t kwstripz = 10.;
387 // length of the FSTR Volume (the strip volume)
388 const Float_t klstripx = 122.;
390 Float_t parfp[3]={klstripx*0.5,khstripy*0.5,kwstripz*0.5};
391 // coordinates of the strip center in the strip reference frame; used for positioning
392 // internal strip volumes
393 Float_t posfp[3]={0.,0.,0.};
395 // FSTR volume definition and filling this volume with non sensitive Gas Mixture
396 gMC->Gsvolu("FSTR","BOX",idtmed[512],parfp,3);
397 //-- HONY Layer definition
399 parfp[1] = khhony*0.5;
401 gMC->Gsvolu("FHON","BOX",idtmed[503],parfp,3);
402 // positioning 2 HONY Layers on FSTR volume
403 posfp[1]=-khstripy*0.5+parfp[1];
404 gMC->Gspos("FHON",1,"FSTR",0., posfp[1],0.,0,"ONLY");
405 gMC->Gspos("FHON",2,"FSTR",0.,-posfp[1],0.,0,"ONLY");
407 //-- PCB Layer definition
408 parfp[1] = khpcby*0.5;
409 gMC->Gsvolu("FPCB","BOX",idtmed[504],parfp,3);
410 // positioning 2 PCB Layers on FSTR volume
411 posfp[1]=-khstripy*0.5+khhony+parfp[1];
412 gMC->Gspos("FPCB",1,"FSTR",0., posfp[1],0.,0,"ONLY");
413 gMC->Gspos("FPCB",2,"FSTR",0.,-posfp[1],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");
423 //-- Graphite Layer definition
424 parfp[1] = khgraphy*0.5;
425 gMC->Gsvolu("FGRP","BOX",idtmed[502],parfp,3);
426 // positioning 2 Graphite Layers on FSTR volume
427 posfp[1] = -khstripy*0.5+khhony+khpcby+khmyly+parfp[1];
428 gMC->Gspos("FGRP",1,"FSTR",0., posfp[1],0.,0,"ONLY");
429 gMC->Gspos("FGRP",2,"FSTR",0.,-posfp[1],0.,0,"ONLY");
431 //-- Glass (EXT. +Semi INT.) Layer definition
432 parfp[1] = khglasseiy*0.5;
433 gMC->Gsvolu("FGLA","BOX",idtmed[514],parfp,3);
434 // positioning 2 Glass Layers on FSTR volume
435 posfp[1] = -khstripy*0.5+khhony+khpcby+khmyly+khgraphy+parfp[1];
436 gMC->Gspos("FGLA",1,"FSTR",0., posfp[1],0.,0,"ONLY");
437 gMC->Gspos("FGLA",2,"FSTR",0.,-posfp[1],0.,0,"ONLY");
439 //-- Sensitive Mixture Layer definition
440 parfp[0] = klsensmx*0.5;
441 parfp[1] = khsensmy*0.5;
442 parfp[2] = kwsensmz*0.5;
443 gMC->Gsvolu("FSEN","BOX",idtmed[513],parfp,3);
444 // positioning the sensitive gas Layer on FSTR volume
445 gMC->Gspos("FSEN",0,"FSTR",0.,0.,0.,0,"ONLY");
447 // dividing FSEN along z in knz=2 and along x in knx=48
448 gMC->Gsdvn("FSEZ","FSEN",knz,3);
449 gMC->Gsdvn("FSEX","FSEZ",knx,1);
451 // FPAD volume definition
452 parfp[0] = klpadx*0.5;
453 parfp[1] = khsensmy*0.5;
454 parfp[2] = kwpadz*0.5;
455 gMC->Gsvolu("FPAD","BOX",idtmed[513],parfp,3);
456 // positioning the FPAD volumes on previous divisions
457 gMC->Gspos("FPAD",0,"FSEX",0.,0.,0.,0,"ONLY");
459 //// Positioning the Strips (FSTR) in the FLT volumes /////
463 Float_t t = zFLTC+zFLTB+zFLTA*0.5+ 2*db;//Half Width of Barrel
465 Float_t gap = 4.; //cm distance between the strip axis
472 ycoor = -14.5 + kspace ; //2 cm over front plate
474 AliMatrix (idrotm[0], 90., 0.,90.,90.,0., 90.);
475 gMC->Gspos("FSTR",j,"FLTA",0.,ycoor, 0.,idrotm[0],"ONLY");
479 Int_t upDown = -1; // upDown=-1 -> Upper strip
480 // upDown=+1 -> Lower strip
482 ang = atan(zcoor/radius);
484 AliMatrix (idrotm[nrot], 90., 0.,90.-ang,90.,-ang, 90.);
485 AliMatrix (idrotm[nrot+1],90.,180.,90.+ang,90., ang, 90.);
487 ycoor = -14.5+ kspace; //2 cm over front plate
488 ycoor += (1-(upDown+1)/2)*gap;
489 gMC->Gspos("FSTR",j ,"FLTA",0.,ycoor, zcoor,idrotm[nrot], "ONLY");
490 gMC->Gspos("FSTR",j+1,"FLTA",0.,ycoor,-zcoor,idrotm[nrot+1],"ONLY");
492 upDown*= -1; // Alternate strips
493 zcoor = zcoor-(zSenStrip/2)/TMath::Cos(ang)-
494 upDown*gap*TMath::Tan(ang)-
495 (zSenStrip/2)/TMath::Cos(ang);
496 } while (zcoor-(stripWidth/2)*TMath::Cos(ang)>-t+zFLTC+zFLTB+db*2);
498 zcoor = zcoor+(zSenStrip/2)/TMath::Cos(ang)-
499 upDown*gap*TMath::Tan(ang)+
500 (zSenStrip/2)/TMath::Cos(ang);
503 zcoor = zcoor-(zSenStrip/2)/TMath::Cos(ang)-
504 upDown*gap*TMath::Tan(ang)-
505 (zSenStrip/2)/TMath::Cos(ang);
507 ang = atan(zcoor/radius);
509 AliMatrix (idrotm[nrot], 90., 0.,90.-ang,90.,-ang, 90.);
510 AliMatrix (idrotm[nrot+1],90.,180.,90.+ang,90., ang, 90.);
513 ycoor = -14.5+ kspace; //2 cm over front plate
514 ycoor += (1-(upDown+1)/2)*gap;
515 gMC->Gspos("FSTR",j ,"FLTA",0.,ycoor, zcoor,idrotm[nrot], "ONLY");
516 gMC->Gspos("FSTR",j+1,"FLTA",0.,ycoor,-zcoor,idrotm[nrot+1],"ONLY");
518 ycoor = -29./2.+ kspace;//2 cm over front plate
526 zpos = zcoor - (zSenStrip/2)/TMath::Cos(ang)-
527 upDown*gap*TMath::Tan(ang)-
528 (zSenStrip/2)/TMath::Cos(ang)-0.5/TMath::Cos(ang);
530 ang = atan(zpos/radius);
532 AliMatrix (idrotm[nrot], 90., 0., 90.-ang,90.,ang, 270.);
534 ycoor = -29.*0.5+ kspace ; //2 cm over front plate
535 ycoor += (1-(upDown+1)/2)*gap;
536 zcoor = zpos+(zFLTA*0.5+zFLTB*0.5+db); // Moves to the system of the modulus FLTB
537 gMC->Gspos("FSTR",i, "FLTB", 0., ycoor, zcoor,idrotm[nrot], "ONLY");
542 zpos = zpos - (zSenStrip/2)/TMath::Cos(ang)-
543 upDown*gap*TMath::Tan(ang)-
544 (zSenStrip/2)/TMath::Cos(ang);
545 ang = atan(zpos/radius);
547 AliMatrix (idrotm[nrot], 90., 0., 90.-ang,90.,ang, 270.);
549 ycoor = -29.*0.5+ kspace ; //2 cm over front plate
550 ycoor += (1-(upDown+1)/2)*gap;
551 zcoor = zpos+(zFLTA*0.5+zFLTB*0.5+db); // Moves to the system of the modulus FLTB
552 gMC->Gspos("FSTR",i, "FLTB", 0., ycoor, zcoor,idrotm[nrot], "ONLY");
555 } while (TMath::Abs(ang*kRaddeg)<22.5);//till we reach a tilting angle of 22.5 degrees
557 ycoor = -29.*0.5+ kspace ; //2 cm over front plate
561 ang = atan(zpos/radius);
563 AliMatrix (idrotm[nrot], 90., 0., 90.-ang,90.,ang, 270.);
565 zcoor = zpos+(zFLTB/2+zFLTA/2+db);
566 gMC->Gspos("FSTR",i, "FLTB", 0., ycoor, zcoor,idrotm[nrot], "ONLY");
567 zpos = zpos - zSenStrip/TMath::Cos(ang);
568 last = stripWidth*TMath::Cos(ang)/2.;
569 } while (zpos>-t+zFLTC+db);
573 zpos = zpos - (zSenStrip/2)/TMath::Cos(ang)-
575 (zSenStrip/2)/TMath::Cos(ang);
579 ycoor= -29.*0.5+kspace+gap;
583 ang = atan(zpos/radius);
585 AliMatrix (idrotm[nrot], 90., 0., 90.-ang,90.,ang, 270.);
587 zcoor = zpos+(zFLTC*0.5+zFLTB+zFLTA*0.5+db*2);
588 gMC->Gspos("FSTR",i, "FLTC", 0., ycoor, zcoor,idrotm[nrot], "ONLY");
589 zpos = zpos - zSenStrip/TMath::Cos(ang);
590 last = stripWidth*TMath::Cos(ang)*0.5;
591 } while (zpos>-t+last);
594 ////////// Layers after strips /////////////////
595 // honeycomb (Polyethilene) Layer after (1.2cm)
597 Float_t overSpace = fOverSpc;//cm
601 par[2] = (zFLTA *0.5);
602 ycoor = -yFLT/2 + overSpace + par[1];
603 gMC->Gsvolu("FPEA", "BOX ", idtmed[503], par, 3); // Hony
604 gMC->Gspos ("FPEA", 0, "FLTA", 0., ycoor, 0., 0, "ONLY");
605 par[2] = (zFLTB *0.5);
606 gMC->Gsvolu("FPEB", "BOX ", idtmed[503], par, 3); // Hony
607 gMC->Gspos ("FPEB", 0, "FLTB", 0., ycoor, 0., 0, "ONLY");
608 par[2] = (zFLTC *0.5);
609 gMC->Gsvolu("FPEC", "BOX ", idtmed[503], par, 3); // Hony
610 gMC->Gspos ("FPEC", 0, "FLTC", 0., ycoor, 0., 0, "ONLY");
612 // Electronics (Cu) after
615 par[1] = 1.43*0.05*0.5; // 5% of X0
616 par[2] = (zFLTA *0.5);
618 gMC->Gsvolu("FECA", "BOX ", idtmed[501], par, 3); // Cu
619 gMC->Gspos ("FECA", 0, "FLTA", 0., ycoor, 0., 0, "ONLY");
620 par[2] = (zFLTB *0.5);
621 gMC->Gsvolu("FECB", "BOX ", idtmed[501], par, 3); // Cu
622 gMC->Gspos ("FECB", 0, "FLTB", 0., ycoor, 0., 0, "ONLY");
623 par[2] = (zFLTC *0.5);
624 gMC->Gsvolu("FECC", "BOX ", idtmed[501], par, 3); // Cu
625 gMC->Gspos ("FECC", 0, "FLTC", 0., ycoor, 0., 0, "ONLY");
627 // cooling WAter after
630 par[1] = 36.1*0.02*0.5; // 2% of X0
631 par[2] = (zFLTA *0.5);
633 gMC->Gsvolu("FWAA", "BOX ", idtmed[515], par, 3); // Water
634 gMC->Gspos ("FWAA", 0, "FLTA", 0., ycoor, 0., 0, "ONLY");
635 par[2] = (zFLTB *0.5);
636 gMC->Gsvolu("FWAB", "BOX ", idtmed[515], par, 3); // Water
637 gMC->Gspos ("FWAB", 0, "FLTB", 0., ycoor, 0., 0, "ONLY");
638 par[2] = (zFLTC *0.5);
639 gMC->Gsvolu("FWAC", "BOX ", idtmed[515], par, 3); // Water
640 gMC->Gspos ("FWAC", 0, "FLTC", 0., ycoor, 0., 0, "ONLY");
645 par[1] = (yFLT/2-ycoor-0.2)*0.5; // Aluminum layer considered (0.2 cm)
646 par[2] = (zFLTA *0.5);
648 gMC->Gsvolu("FAIA", "BOX ", idtmed[500], par, 3); // Air
649 gMC->Gspos ("FAIA", 0, "FLTA", 0., ycoor, 0., 0, "ONLY");
650 par[2] = (zFLTB *0.5);
651 gMC->Gsvolu("FAIB", "BOX ", idtmed[500], par, 3); // Air
652 gMC->Gspos ("FAIB", 0, "FLTB", 0., ycoor, 0., 0, "ONLY");
653 par[2] = (zFLTC *0.5);
654 gMC->Gsvolu("FAIC", "BOX ", idtmed[500], par, 3); // Air
655 gMC->Gspos ("FAIC", 0, "FLTC", 0., ycoor, 0., 0, "ONLY");
657 //Back Plate honycomb (2cm)
661 ycoor = yFLT/2 - par[1];
662 gMC->Gsvolu("FBPA", "BOX ", idtmed[503], par, 3); // Hony
663 gMC->Gspos ("FBPA", 0, "FLTA", 0., ycoor, 0., 0, "ONLY");
664 gMC->Gsvolu("FBPB", "BOX ", idtmed[503], par, 3); // Hony
665 gMC->Gspos ("FBPB", 0, "FLTB", 0., ycoor, 0., 0, "ONLY");
666 gMC->Gsvolu("FBPC", "BOX ", idtmed[503], par, 3); // Hony
667 gMC->Gspos ("FBPC", 0, "FLTC", 0., ycoor, 0., 0, "ONLY");
671 //_____________________________________________________________________________
672 void AliTOFv0::DrawModule()
675 // Draw a shaded view of the Time Of Flight version 1
677 // Set everything unseen
678 gMC->Gsatt("*", "seen", -1);
680 // Set ALIC mother transparent
681 gMC->Gsatt("ALIC","SEEN",0);
683 // Set the volumes visible
684 gMC->Gsatt("ALIC","SEEN",0);
686 gMC->Gsatt("FTOA","SEEN",1);
687 gMC->Gsatt("FTOB","SEEN",1);
688 gMC->Gsatt("FTOC","SEEN",1);
689 gMC->Gsatt("FLTA","SEEN",1);
690 gMC->Gsatt("FLTB","SEEN",1);
691 gMC->Gsatt("FLTC","SEEN",1);
692 gMC->Gsatt("FPLA","SEEN",1);
693 gMC->Gsatt("FPLB","SEEN",1);
694 gMC->Gsatt("FPLC","SEEN",1);
695 gMC->Gsatt("FSTR","SEEN",1);
696 gMC->Gsatt("FPEA","SEEN",1);
697 gMC->Gsatt("FPEB","SEEN",1);
698 gMC->Gsatt("FPEC","SEEN",1);
700 gMC->Gsatt("FLZ1","SEEN",0);
701 gMC->Gsatt("FLZ2","SEEN",0);
702 gMC->Gsatt("FLZ3","SEEN",0);
703 gMC->Gsatt("FLX1","SEEN",0);
704 gMC->Gsatt("FLX2","SEEN",0);
705 gMC->Gsatt("FLX3","SEEN",0);
706 gMC->Gsatt("FPAD","SEEN",0);
708 gMC->Gdopt("hide", "on");
709 gMC->Gdopt("shad", "on");
710 gMC->Gsatt("*", "fill", 7);
711 gMC->SetClipBox(".");
712 gMC->SetClipBox("*", 0, 1000, -1000, 1000, -1000, 1000);
714 gMC->Gdraw("alic", 40, 30, 0, 12, 9.5, .02, .02);
715 gMC->Gdhead(1111, "Time Of Flight");
716 gMC->Gdman(18, 4, "MAN");
717 gMC->Gdopt("hide","off");
720 //_____________________________________________________________________________
721 void AliTOFv0::CreateMaterials()
724 // Define materials for the Time Of Flight
726 AliTOF::CreateMaterials();
729 //_____________________________________________________________________________
730 void AliTOFv0::Init()
733 // Initialise the detector after the geometry has been defined
735 printf("**************************************"
737 "**************************************\n");
738 printf("\n Version 0 of TOF initialing, "
743 fIdFTOA = gMC->VolId("FTOA");
744 fIdFTOB = gMC->VolId("FTOB");
745 fIdFTOC = gMC->VolId("FTOC");
746 fIdFLTA = gMC->VolId("FLTA");
747 fIdFLTB = gMC->VolId("FLTB");
748 fIdFLTC = gMC->VolId("FLTC");
750 printf("**************************************"
752 "**************************************\n");
755 //_____________________________________________________________________________
756 void AliTOFv0::StepManager()
759 // Procedure called at each step in the Time Of Flight
761 Float_t hits[8],rho,phi,phid,z;
762 Int_t sector, plate, padx, padz, strip;
763 Int_t copy, padzid, padxid, stripid, i;
765 Int_t *idtmed = fIdtmed->GetArray()-499;
766 TLorentzVector mom, pos;
769 if(gMC->GetMedium()==idtmed[513] &&
770 gMC->IsTrackEntering() && gMC->TrackCharge()
771 && gMC->CurrentVolID(copy)==fIdSens)
773 // getting information about hit volumes
775 padzid=gMC->CurrentVolOffID(2,copy);
778 padxid=gMC->CurrentVolOffID(1,copy);
781 stripid=gMC->CurrentVolOffID(4,copy);
784 padz = (strip-1)*2+padz;
786 gMC->TrackPosition(pos);
787 gMC->TrackMomentum(mom);
789 rho = sqrt(pos[0]*pos[0]+pos[1]*pos[1]);
790 phi = TMath::ACos(pos[0]/rho);
791 Float_t as = TMath::ASin(pos[1]/rho);
792 if (as<0) phi = 2*3.141592654-phi;
797 Float_t limA = fZlenA*0.5;
798 Float_t limB = fZlenB+limA;
800 if (TMath::Abs(z)<=limA) plate = 3;
801 if (z<= limB && z> limA) plate = 2;
802 if (z>=-limB && z<-limA) plate = 4;
803 if (z> limB) plate = 1;
804 if (z<-limB) plate = 5;
806 if (plate==3) padz -= 2;
809 sector = Int_t (phid/20.);
812 Double_t ptot = mom.Rho();
813 Double_t norm = 1/ptot;
816 hits[i+3] = mom[i]*norm;
826 Int_t track = gAlice->CurrentTrack();
827 AliTOF::AddHit(track,vol, hits);