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 1.19 2001/05/04 10:09:48 vicinanz
19 Major upgrades to the strip structure
21 Revision 1.18 2000/12/04 08:48:20 alibrary
22 Fixing problems in the HEAD
24 Revision 1.17 2000/10/02 21:28:17 fca
25 Removal of useless dependecies via forward declarations
27 Revision 1.16 2000/05/10 16:52:18 vicinanz
28 New TOF version with holes for PHOS/RICH
30 Revision 1.14.2.1 2000/05/10 09:37:16 vicinanz
31 New version with Holes for PHOS/RICH
33 Revision 1.14 1999/11/05 22:39:06 fca
36 Revision 1.13 1999/11/02 11:26:39 fca
37 added stdlib.h for exit
39 Revision 1.12 1999/11/01 20:41:57 fca
40 Added protections against using the wrong version of FRAME
42 Revision 1.11 1999/10/22 08:04:14 fca
43 Correct improper use of negative parameters
45 Revision 1.10 1999/10/16 19:30:06 fca
46 Corrected Rotation Matrix and CVS log
48 Revision 1.9 1999/10/15 15:35:20 fca
49 New version for frame1099 with and without holes
51 Revision 1.8 1999/09/29 09:24:33 fca
52 Introduction of the Copyright and cvs Log
56 ///////////////////////////////////////////////////////////////////////////////
58 // Time Of Flight: design of C.Williams FCA //
59 // This class contains the functions for version 1 of the Time Of Flight //
62 // VERSION WITH 5 MODULES AND TILTED STRIPS
64 // FULL COVERAGE VERSION
71 // University of Salerno - Italy
74 // University of Bologna - Italy
79 <img src="picts/AliTOFv0Class.gif">
83 ///////////////////////////////////////////////////////////////////////////////
90 #include "TGeometry.h"
93 #include <TLorentzVector.h>
100 //_____________________________________________________________________________
104 // Default constructor
108 // Check that FRAME is there otherwise we have no place where to
110 AliModule* frame=gAlice->GetModule("FRAME");
112 Error("Ctor","TOF needs FRAME to be present\n");
115 if(frame->IsVersion()!=1) {
116 Error("Ctor","FRAME version 1 needed with this version of TOF\n");
123 //_____________________________________________________________________________
124 AliTOFv0::AliTOFv0(const char *name, const char *title)
128 // Standard constructor
132 //____________________________________________________________________________
133 AliTOFv0::~AliTOFv0()
157 //_____________________________________________________________________________
158 void AliTOFv0::BuildGeometry()
160 // Build TOF ROOT geometry for the ALICE event viewver
163 const int kColorTOF = 27;
166 top = gAlice->GetGeometry()->GetNode("alice");
168 // Position the different copies
169 const Float_t krTof =(fRmax+fRmin)/2;
170 const Float_t khTof = fRmax-fRmin;
171 const Int_t kNTof = fNTof;
172 const Float_t kPi = TMath::Pi();
173 const Float_t kangle = 2*kPi/kNTof;
176 // Define TOF basic volume
178 char nodeName0[7], nodeName1[7], nodeName2[7];
179 char nodeName3[7], nodeName4[7], rotMatNum[7];
181 new TBRIK("S_TOF_C","TOF box","void",
182 120*0.5,khTof*0.5,fZlenC*0.5);
183 new TBRIK("S_TOF_B","TOF box","void",
184 120*0.5,khTof*0.5,fZlenB*0.5);
185 new TBRIK("S_TOF_A","TOF box","void",
186 120*0.5,khTof*0.5,fZlenA*0.5);
188 for (Int_t nodeNum=1;nodeNum<19;nodeNum++){
191 sprintf(rotMatNum,"rot50%i",nodeNum);
192 sprintf(nodeName0,"FTO00%i",nodeNum);
193 sprintf(nodeName1,"FTO10%i",nodeNum);
194 sprintf(nodeName2,"FTO20%i",nodeNum);
195 sprintf(nodeName3,"FTO30%i",nodeNum);
196 sprintf(nodeName4,"FTO40%i",nodeNum);
199 sprintf(rotMatNum,"rot5%i",nodeNum);
200 sprintf(nodeName0,"FTO0%i",nodeNum);
201 sprintf(nodeName1,"FTO1%i",nodeNum);
202 sprintf(nodeName2,"FTO2%i",nodeNum);
203 sprintf(nodeName3,"FTO3%i",nodeNum);
204 sprintf(nodeName4,"FTO4%i",nodeNum);
207 new TRotMatrix(rotMatNum,rotMatNum,90,-20*nodeNum,90,90-20*nodeNum,0,0);
208 ang = (4.5-nodeNum) * kangle;
211 node = new TNode(nodeName0,nodeName0,"S_TOF_C",krTof*TMath::Cos(ang),krTof*TMath::Sin(ang),299.15,rotMatNum);
212 node->SetLineColor(kColorTOF);
216 node = new TNode(nodeName1,nodeName1,"S_TOF_C",krTof*TMath::Cos(ang),krTof*TMath::Sin(ang),-299.15,rotMatNum);
217 node->SetLineColor(kColorTOF);
221 node = new TNode(nodeName2,nodeName2,"S_TOF_B",krTof*TMath::Cos(ang),krTof*TMath::Sin(ang),146.45,rotMatNum);
222 node->SetLineColor(kColorTOF);
226 node = new TNode(nodeName3,nodeName3,"S_TOF_B",krTof*TMath::Cos(ang),krTof*TMath::Sin(ang),-146.45,rotMatNum);
227 node->SetLineColor(kColorTOF);
231 node = new TNode(nodeName4,nodeName4,"S_TOF_A",krTof*TMath::Cos(ang),krTof*TMath::Sin(ang),0.,rotMatNum);
232 node->SetLineColor(kColorTOF);
237 //_____________________________________________________________________________
238 void AliTOFv0::CreateGeometry()
241 // Create geometry for Time Of Flight version 0
245 <img src="picts/AliTOFv0.gif">
249 // Creates common geometry
251 AliTOF::CreateGeometry();
254 //_____________________________________________________________________________
255 void AliTOFv0::TOFpc(Float_t xtof, Float_t ytof, Float_t zlenC,
256 Float_t zlenB, Float_t zlenA, Float_t ztof0)
259 // Definition of the Time Of Fligh Resistive Plate Chambers
260 // xFLT, yFLT, zFLT - sizes of TOF modules (large)
262 Float_t ycoor, zcoor;
264 Int_t *idtmed = fIdtmed->GetArray()-499;
268 Float_t radius = fRmin+2.;//cm
272 par[2] = zlenC * 0.5;
273 gMC->Gsvolu("FTOC", "BOX ", idtmed[506], par, 3);
274 par[2] = zlenB * 0.5;
275 gMC->Gsvolu("FTOB", "BOX ", idtmed[506], par, 3);
276 par[2] = zlenA * 0.5;
277 gMC->Gsvolu("FTOA", "BOX ", idtmed[506], par, 3);
280 // Positioning of modules
282 Float_t zcor1 = ztof0 - zlenC*0.5;
283 Float_t zcor2 = ztof0 - zlenC - zlenB*0.5;
286 AliMatrix(idrotm[0], 90., 0., 0., 0., 90, -90.);
287 AliMatrix(idrotm[1], 90., 180., 0., 0., 90, 90.);
288 gMC->Gspos("FTOC", 1, "BTO1", 0, zcor1, 0, idrotm[0], "ONLY");
289 gMC->Gspos("FTOC", 2, "BTO1", 0, -zcor1, 0, idrotm[1], "ONLY");
290 gMC->Gspos("FTOC", 1, "BTO2", 0, zcor1, 0, idrotm[0], "ONLY");
291 gMC->Gspos("FTOC", 2, "BTO2", 0, -zcor1, 0, idrotm[1], "ONLY");
292 gMC->Gspos("FTOC", 1, "BTO3", 0, zcor1, 0, idrotm[0], "ONLY");
293 gMC->Gspos("FTOC", 2, "BTO3", 0, -zcor1, 0, idrotm[1], "ONLY");
295 gMC->Gspos("FTOB", 1, "BTO1", 0, zcor2, 0, idrotm[0], "ONLY");
296 gMC->Gspos("FTOB", 2, "BTO1", 0, -zcor2, 0, idrotm[1], "ONLY");
297 gMC->Gspos("FTOB", 1, "BTO2", 0, zcor2, 0, idrotm[0], "ONLY");
298 gMC->Gspos("FTOB", 2, "BTO2", 0, -zcor2, 0, idrotm[1], "ONLY");
299 gMC->Gspos("FTOB", 1, "BTO3", 0, zcor2, 0, idrotm[0], "ONLY");
300 gMC->Gspos("FTOB", 2, "BTO3", 0, -zcor2, 0, idrotm[1], "ONLY");
302 gMC->Gspos("FTOA", 0, "BTO1", 0, zcor3, 0, idrotm[0], "ONLY");
303 gMC->Gspos("FTOA", 0, "BTO2", 0, zcor3, 0, idrotm[0], "ONLY");
304 gMC->Gspos("FTOA", 0, "BTO3", 0, zcor3, 0, idrotm[0], "ONLY");
306 Float_t db = 0.5;//cm
307 Float_t xFLT, yFLT, zFLTA, zFLTB, zFLTC;
311 zFLTA = zlenA - db*0.5;
312 zFLTB = zlenB - db*0.5;
313 zFLTC = zlenC - db*0.5;
315 // Sizes of MRPC pads
317 Float_t yPad = 0.505;//cm
319 // Large not sensitive volumes with Insensitive Freon
323 if (fDebug) cout << ClassName() <<
324 ": ************************* TOF geometry **************************"<<endl;
326 par[2] = (zFLTA *0.5);
327 gMC->Gsvolu("FLTA", "BOX ", idtmed[512], par, 3); // Insensitive Freon
328 gMC->Gspos("FLTA", 0, "FTOA", 0., 0., 0., 0, "ONLY");
330 par[2] = (zFLTB * 0.5);
331 gMC->Gsvolu("FLTB", "BOX ", idtmed[512], par, 3); // Insensitive Freon
332 gMC->Gspos("FLTB", 0, "FTOB", 0., 0., 0., 0, "ONLY");
334 par[2] = (zFLTC * 0.5);
335 gMC->Gsvolu("FLTC", "BOX ", idtmed[512], par, 3); // Insensitive Freon
336 gMC->Gspos("FLTC", 0, "FTOC", 0., 0., 0., 0, "ONLY");
338 ////////// Layers of Aluminum before and after detector //////////
339 ////////// Aluminum Box for Modules (2.0 mm thickness) /////////
340 ////////// lateral walls not simulated
343 ycoor = -yFLT/2 + par[1];
344 par[2] = (zFLTA *0.5);
345 gMC->Gsvolu("FALA", "BOX ", idtmed[508], par, 3); // Alluminium
346 gMC->Gspos("FALA", 1, "FLTA", 0., ycoor, 0., 0, "ONLY");
347 gMC->Gspos("FALA", 2, "FLTA", 0.,-ycoor, 0., 0, "ONLY");
348 par[2] = (zFLTB *0.5);
349 gMC->Gsvolu("FALB", "BOX ", idtmed[508], par, 3); // Alluminium
350 gMC->Gspos("FALB", 1, "FLTB", 0., ycoor, 0., 0, "ONLY");
351 gMC->Gspos("FALB", 2, "FLTB", 0.,-ycoor, 0., 0, "ONLY");
352 par[2] = (zFLTC *0.5);
353 gMC->Gsvolu("FALC", "BOX ", idtmed[508], par, 3); // Alluminium
354 gMC->Gspos("FALC", 1, "FLTC", 0., ycoor, 0., 0, "ONLY");
355 gMC->Gspos("FALC", 2, "FLTC", 0.,-ycoor, 0., 0, "ONLY");
357 ///////////////// Detector itself //////////////////////
359 Float_t stripWidth = 10.0;//cm
360 const Float_t kdeadBound = 1.5;//cm non-sensitive between the pad edge
361 //and the boundary of the strip
362 const Int_t knx = 48; // number of pads along x
363 const Int_t knz = 2; // number of pads along z
364 const Float_t kspace= 5.5; //cm distance from the front plate of the box
367 zSenStrip = stripWidth-2*kdeadBound;//cm
371 par[2] = stripWidth/2.;
373 // new description for strip volume
374 // -- all constants are expressed in cm
375 // heigth of different layers
376 const Float_t khhony = 1. ; // heigth of HONY Layer
377 const Float_t khpcby = 0.15 ; // heigth of PCB Layer
378 const Float_t khmyly = 0.035 ; // heigth of MYLAR Layer
379 const Float_t khgraphy = 0.02 ; // heigth of GRAPHITE Layer
380 const Float_t khglasseiy = 0.32; // 2.2 Ext. Glass + 1. Semi Int. Glass (mm)
381 const Float_t khsensmy = 0.11 ; // heigth of Sensitive Freon Mixture
382 const Float_t kwsensmz = 2*3.5 ; // cm
383 const Float_t klsensmx = 48*2.5; // cm
384 const Float_t kwpadz = 3.5; // cm z dimension of the FPAD volume
385 const Float_t klpadx = 2.5; // cm x dimension of the FPAD volume
387 // heigth of the FSTR Volume (the strip volume)
388 const Float_t khstripy = 2*(khhony+khpcby+khmyly+khgraphy+khglasseiy)+khsensmy;
389 // width of the FSTR Volume (the strip volume)
390 const Float_t kwstripz = 10.;
391 // length of the FSTR Volume (the strip volume)
392 const Float_t klstripx = 122.;
394 Float_t parfp[3]={klstripx*0.5,khstripy*0.5,kwstripz*0.5};
395 // coordinates of the strip center in the strip reference frame; used for positioning
396 // internal strip volumes
397 Float_t posfp[3]={0.,0.,0.};
399 // FSTR volume definition and filling this volume with non sensitive Gas Mixture
400 gMC->Gsvolu("FSTR","BOX",idtmed[512],parfp,3);
401 //-- HONY Layer definition
403 parfp[1] = khhony*0.5;
405 gMC->Gsvolu("FHON","BOX",idtmed[503],parfp,3);
406 // positioning 2 HONY Layers on FSTR volume
407 posfp[1]=-khstripy*0.5+parfp[1];
408 gMC->Gspos("FHON",1,"FSTR",0., posfp[1],0.,0,"ONLY");
409 gMC->Gspos("FHON",2,"FSTR",0.,-posfp[1],0.,0,"ONLY");
411 //-- PCB Layer definition
412 parfp[1] = khpcby*0.5;
413 gMC->Gsvolu("FPCB","BOX",idtmed[504],parfp,3);
414 // positioning 2 PCB Layers on FSTR volume
415 posfp[1]=-khstripy*0.5+khhony+parfp[1];
416 gMC->Gspos("FPCB",1,"FSTR",0., posfp[1],0.,0,"ONLY");
417 gMC->Gspos("FPCB",2,"FSTR",0.,-posfp[1],0.,0,"ONLY");
419 //-- MYLAR Layer definition
420 parfp[1] = khmyly*0.5;
421 gMC->Gsvolu("FMYL","BOX",idtmed[511],parfp,3);
422 // positioning 2 MYLAR Layers on FSTR volume
423 posfp[1] = -khstripy*0.5+khhony+khpcby+parfp[1];
424 gMC->Gspos("FMYL",1,"FSTR",0., posfp[1],0.,0,"ONLY");
425 gMC->Gspos("FMYL",2,"FSTR",0.,-posfp[1],0.,0,"ONLY");
427 //-- Graphite Layer definition
428 parfp[1] = khgraphy*0.5;
429 gMC->Gsvolu("FGRP","BOX",idtmed[502],parfp,3);
430 // positioning 2 Graphite Layers on FSTR volume
431 posfp[1] = -khstripy*0.5+khhony+khpcby+khmyly+parfp[1];
432 gMC->Gspos("FGRP",1,"FSTR",0., posfp[1],0.,0,"ONLY");
433 gMC->Gspos("FGRP",2,"FSTR",0.,-posfp[1],0.,0,"ONLY");
435 //-- Glass (EXT. +Semi INT.) Layer definition
436 parfp[1] = khglasseiy*0.5;
437 gMC->Gsvolu("FGLA","BOX",idtmed[514],parfp,3);
438 // positioning 2 Glass Layers on FSTR volume
439 posfp[1] = -khstripy*0.5+khhony+khpcby+khmyly+khgraphy+parfp[1];
440 gMC->Gspos("FGLA",1,"FSTR",0., posfp[1],0.,0,"ONLY");
441 gMC->Gspos("FGLA",2,"FSTR",0.,-posfp[1],0.,0,"ONLY");
443 //-- Sensitive Mixture Layer definition
444 parfp[0] = klsensmx*0.5;
445 parfp[1] = khsensmy*0.5;
446 parfp[2] = kwsensmz*0.5;
447 gMC->Gsvolu("FSEN","BOX",idtmed[513],parfp,3);
448 // positioning the sensitive gas Layer on FSTR volume
449 gMC->Gspos("FSEN",0,"FSTR",0.,0.,0.,0,"ONLY");
451 // dividing FSEN along z in knz=2 and along x in knx=48
452 gMC->Gsdvn("FSEZ","FSEN",knz,3);
453 gMC->Gsdvn("FSEX","FSEZ",knx,1);
455 // FPAD volume definition
456 parfp[0] = klpadx*0.5;
457 parfp[1] = khsensmy*0.5;
458 parfp[2] = kwpadz*0.5;
459 gMC->Gsvolu("FPAD","BOX",idtmed[513],parfp,3);
460 // positioning the FPAD volumes on previous divisions
461 gMC->Gspos("FPAD",0,"FSEX",0.,0.,0.,0,"ONLY");
463 //// Positioning the Strips (FSTR) in the FLT volumes /////
467 Float_t t = zFLTC+zFLTB+zFLTA*0.5+ 2*db;//Half Width of Barrel
469 Float_t gap = 4.; //cm distance between the strip axis
476 ycoor = -14.5 + kspace ; //2 cm over front plate
478 AliMatrix (idrotm[0], 90., 0.,90.,90.,0., 90.);
479 gMC->Gspos("FSTR",j,"FLTA",0.,ycoor, 0.,idrotm[0],"ONLY");
483 Int_t upDown = -1; // upDown=-1 -> Upper strip
484 // upDown=+1 -> Lower strip
486 ang = atan(zcoor/radius);
488 AliMatrix (idrotm[nrot], 90., 0.,90.-ang,90.,-ang, 90.);
489 AliMatrix (idrotm[nrot+1],90.,180.,90.+ang,90., ang, 90.);
491 ycoor = -14.5+ kspace; //2 cm over front plate
492 ycoor += (1-(upDown+1)/2)*gap;
493 gMC->Gspos("FSTR",j ,"FLTA",0.,ycoor, zcoor,idrotm[nrot], "ONLY");
494 gMC->Gspos("FSTR",j+1,"FLTA",0.,ycoor,-zcoor,idrotm[nrot+1],"ONLY");
496 upDown*= -1; // Alternate strips
497 zcoor = zcoor-(zSenStrip/2)/TMath::Cos(ang)-
498 upDown*gap*TMath::Tan(ang)-
499 (zSenStrip/2)/TMath::Cos(ang);
500 } while (zcoor-(stripWidth/2)*TMath::Cos(ang)>-t+zFLTC+zFLTB+db*2);
502 zcoor = zcoor+(zSenStrip/2)/TMath::Cos(ang)-
503 upDown*gap*TMath::Tan(ang)+
504 (zSenStrip/2)/TMath::Cos(ang);
507 zcoor = zcoor-(zSenStrip/2)/TMath::Cos(ang)-
508 upDown*gap*TMath::Tan(ang)-
509 (zSenStrip/2)/TMath::Cos(ang);
511 ang = atan(zcoor/radius);
513 AliMatrix (idrotm[nrot], 90., 0.,90.-ang,90.,-ang, 90.);
514 AliMatrix (idrotm[nrot+1],90.,180.,90.+ang,90., ang, 90.);
517 ycoor = -14.5+ kspace; //2 cm over front plate
518 ycoor += (1-(upDown+1)/2)*gap;
519 gMC->Gspos("FSTR",j ,"FLTA",0.,ycoor, zcoor,idrotm[nrot], "ONLY");
520 gMC->Gspos("FSTR",j+1,"FLTA",0.,ycoor,-zcoor,idrotm[nrot+1],"ONLY");
522 ycoor = -29./2.+ kspace;//2 cm over front plate
530 zpos = zcoor - (zSenStrip/2)/TMath::Cos(ang)-
531 upDown*gap*TMath::Tan(ang)-
532 (zSenStrip/2)/TMath::Cos(ang)-0.5/TMath::Cos(ang);
534 ang = atan(zpos/radius);
536 AliMatrix (idrotm[nrot], 90., 0., 90.-ang,90.,ang, 270.);
538 ycoor = -29.*0.5+ kspace ; //2 cm over front plate
539 ycoor += (1-(upDown+1)/2)*gap;
540 zcoor = zpos+(zFLTA*0.5+zFLTB*0.5+db); // Moves to the system of the modulus FLTB
541 gMC->Gspos("FSTR",i, "FLTB", 0., ycoor, zcoor,idrotm[nrot], "ONLY");
546 zpos = zpos - (zSenStrip/2)/TMath::Cos(ang)-
547 upDown*gap*TMath::Tan(ang)-
548 (zSenStrip/2)/TMath::Cos(ang);
549 ang = atan(zpos/radius);
551 AliMatrix (idrotm[nrot], 90., 0., 90.-ang,90.,ang, 270.);
553 ycoor = -29.*0.5+ kspace ; //2 cm over front plate
554 ycoor += (1-(upDown+1)/2)*gap;
555 zcoor = zpos+(zFLTA*0.5+zFLTB*0.5+db); // Moves to the system of the modulus FLTB
556 gMC->Gspos("FSTR",i, "FLTB", 0., ycoor, zcoor,idrotm[nrot], "ONLY");
559 } while (TMath::Abs(ang*kRaddeg)<22.5);//till we reach a tilting angle of 22.5 degrees
561 ycoor = -29.*0.5+ kspace ; //2 cm over front plate
565 ang = atan(zpos/radius);
567 AliMatrix (idrotm[nrot], 90., 0., 90.-ang,90.,ang, 270.);
569 zcoor = zpos+(zFLTB/2+zFLTA/2+db);
570 gMC->Gspos("FSTR",i, "FLTB", 0., ycoor, zcoor,idrotm[nrot], "ONLY");
571 zpos = zpos - zSenStrip/TMath::Cos(ang);
572 last = stripWidth*TMath::Cos(ang)/2.;
573 } while (zpos>-t+zFLTC+db);
577 zpos = zpos - (zSenStrip/2)/TMath::Cos(ang)-
579 (zSenStrip/2)/TMath::Cos(ang);
583 ycoor= -29.*0.5+kspace+gap;
587 ang = atan(zpos/radius);
589 AliMatrix (idrotm[nrot], 90., 0., 90.-ang,90.,ang, 270.);
591 zcoor = zpos+(zFLTC*0.5+zFLTB+zFLTA*0.5+db*2);
592 gMC->Gspos("FSTR",i, "FLTC", 0., ycoor, zcoor,idrotm[nrot], "ONLY");
593 zpos = zpos - zSenStrip/TMath::Cos(ang);
594 last = stripWidth*TMath::Cos(ang)*0.5;
595 } while (zpos>-t+last);
598 ////////// Layers after strips /////////////////
599 // honeycomb (Polyethilene) Layer after (1.2cm)
601 Float_t overSpace = fOverSpc;//cm
605 par[2] = (zFLTA *0.5);
606 ycoor = -yFLT/2 + overSpace + par[1];
607 gMC->Gsvolu("FPEA", "BOX ", idtmed[503], par, 3); // Hony
608 gMC->Gspos ("FPEA", 0, "FLTA", 0., ycoor, 0., 0, "ONLY");
609 par[2] = (zFLTB *0.5);
610 gMC->Gsvolu("FPEB", "BOX ", idtmed[503], par, 3); // Hony
611 gMC->Gspos ("FPEB", 0, "FLTB", 0., ycoor, 0., 0, "ONLY");
612 par[2] = (zFLTC *0.5);
613 gMC->Gsvolu("FPEC", "BOX ", idtmed[503], par, 3); // Hony
614 gMC->Gspos ("FPEC", 0, "FLTC", 0., ycoor, 0., 0, "ONLY");
616 // Electronics (Cu) after
619 par[1] = 1.43*0.05*0.5; // 5% of X0
620 par[2] = (zFLTA *0.5);
622 gMC->Gsvolu("FECA", "BOX ", idtmed[501], par, 3); // Cu
623 gMC->Gspos ("FECA", 0, "FLTA", 0., ycoor, 0., 0, "ONLY");
624 par[2] = (zFLTB *0.5);
625 gMC->Gsvolu("FECB", "BOX ", idtmed[501], par, 3); // Cu
626 gMC->Gspos ("FECB", 0, "FLTB", 0., ycoor, 0., 0, "ONLY");
627 par[2] = (zFLTC *0.5);
628 gMC->Gsvolu("FECC", "BOX ", idtmed[501], par, 3); // Cu
629 gMC->Gspos ("FECC", 0, "FLTC", 0., ycoor, 0., 0, "ONLY");
631 // cooling WAter after
634 par[1] = 36.1*0.02*0.5; // 2% of X0
635 par[2] = (zFLTA *0.5);
637 gMC->Gsvolu("FWAA", "BOX ", idtmed[515], par, 3); // Water
638 gMC->Gspos ("FWAA", 0, "FLTA", 0., ycoor, 0., 0, "ONLY");
639 par[2] = (zFLTB *0.5);
640 gMC->Gsvolu("FWAB", "BOX ", idtmed[515], par, 3); // Water
641 gMC->Gspos ("FWAB", 0, "FLTB", 0., ycoor, 0., 0, "ONLY");
642 par[2] = (zFLTC *0.5);
643 gMC->Gsvolu("FWAC", "BOX ", idtmed[515], par, 3); // Water
644 gMC->Gspos ("FWAC", 0, "FLTC", 0., ycoor, 0., 0, "ONLY");
649 par[1] = (yFLT/2-ycoor-0.2)*0.5; // Aluminum layer considered (0.2 cm)
650 par[2] = (zFLTA *0.5);
652 gMC->Gsvolu("FAIA", "BOX ", idtmed[500], par, 3); // Air
653 gMC->Gspos ("FAIA", 0, "FLTA", 0., ycoor, 0., 0, "ONLY");
654 par[2] = (zFLTB *0.5);
655 gMC->Gsvolu("FAIB", "BOX ", idtmed[500], par, 3); // Air
656 gMC->Gspos ("FAIB", 0, "FLTB", 0., ycoor, 0., 0, "ONLY");
657 par[2] = (zFLTC *0.5);
658 gMC->Gsvolu("FAIC", "BOX ", idtmed[500], par, 3); // Air
659 gMC->Gspos ("FAIC", 0, "FLTC", 0., ycoor, 0., 0, "ONLY");
661 //Back Plate honycomb (2cm)
665 ycoor = yFLT/2 - par[1];
666 gMC->Gsvolu("FBPA", "BOX ", idtmed[503], par, 3); // Hony
667 gMC->Gspos ("FBPA", 0, "FLTA", 0., ycoor, 0., 0, "ONLY");
668 gMC->Gsvolu("FBPB", "BOX ", idtmed[503], par, 3); // Hony
669 gMC->Gspos ("FBPB", 0, "FLTB", 0., ycoor, 0., 0, "ONLY");
670 gMC->Gsvolu("FBPC", "BOX ", idtmed[503], par, 3); // Hony
671 gMC->Gspos ("FBPC", 0, "FLTC", 0., ycoor, 0., 0, "ONLY");
675 //_____________________________________________________________________________
676 void AliTOFv0::DrawModule()
679 // Draw a shaded view of the Time Of Flight version 1
681 // Set everything unseen
682 gMC->Gsatt("*", "seen", -1);
684 // Set ALIC mother transparent
685 gMC->Gsatt("ALIC","SEEN",0);
687 // Set the volumes visible
688 gMC->Gsatt("ALIC","SEEN",0);
690 gMC->Gsatt("FTOA","SEEN",1);
691 gMC->Gsatt("FTOB","SEEN",1);
692 gMC->Gsatt("FTOC","SEEN",1);
693 gMC->Gsatt("FLTA","SEEN",1);
694 gMC->Gsatt("FLTB","SEEN",1);
695 gMC->Gsatt("FLTC","SEEN",1);
696 gMC->Gsatt("FPLA","SEEN",1);
697 gMC->Gsatt("FPLB","SEEN",1);
698 gMC->Gsatt("FPLC","SEEN",1);
699 gMC->Gsatt("FSTR","SEEN",1);
700 gMC->Gsatt("FPEA","SEEN",1);
701 gMC->Gsatt("FPEB","SEEN",1);
702 gMC->Gsatt("FPEC","SEEN",1);
704 gMC->Gsatt("FLZ1","SEEN",0);
705 gMC->Gsatt("FLZ2","SEEN",0);
706 gMC->Gsatt("FLZ3","SEEN",0);
707 gMC->Gsatt("FLX1","SEEN",0);
708 gMC->Gsatt("FLX2","SEEN",0);
709 gMC->Gsatt("FLX3","SEEN",0);
710 gMC->Gsatt("FPAD","SEEN",0);
712 gMC->Gdopt("hide", "on");
713 gMC->Gdopt("shad", "on");
714 gMC->Gsatt("*", "fill", 7);
715 gMC->SetClipBox(".");
716 gMC->SetClipBox("*", 0, 1000, -1000, 1000, -1000, 1000);
718 gMC->Gdraw("alic", 40, 30, 0, 12, 9.5, .02, .02);
719 gMC->Gdhead(1111, "Time Of Flight");
720 gMC->Gdman(18, 4, "MAN");
721 gMC->Gdopt("hide","off");
724 //_____________________________________________________________________________
725 void AliTOFv0::CreateMaterials()
728 // Define materials for the Time Of Flight
730 AliTOF::CreateMaterials();
733 //_____________________________________________________________________________
734 void AliTOFv0::Init()
737 // Initialise the detector after the geometry has been defined
740 printf("%s: **************************************"
742 "**************************************\n",ClassName());
743 printf("\n%s: Version 0 of TOF initialing, "
744 "symmetric TOF\n",ClassName());
749 fIdFTOA = gMC->VolId("FTOA");
750 fIdFTOB = gMC->VolId("FTOB");
751 fIdFTOC = gMC->VolId("FTOC");
752 fIdFLTA = gMC->VolId("FLTA");
753 fIdFLTB = gMC->VolId("FLTB");
754 fIdFLTC = gMC->VolId("FLTC");
757 printf("%s: **************************************"
759 "**************************************\n",ClassName());
763 //_____________________________________________________________________________
764 void AliTOFv0::StepManager()
767 // Procedure called at each step in the Time Of Flight
769 Float_t hits[8],rho,phi,phid,z;
770 Int_t sector, plate, padx, padz, strip;
771 Int_t copy, padzid, padxid, stripid, i;
773 Int_t *idtmed = fIdtmed->GetArray()-499;
774 TLorentzVector mom, pos;
777 if(gMC->GetMedium()==idtmed[513] &&
778 gMC->IsTrackEntering() && gMC->TrackCharge()
779 && gMC->CurrentVolID(copy)==fIdSens)
781 // getting information about hit volumes
783 padzid=gMC->CurrentVolOffID(2,copy);
786 padxid=gMC->CurrentVolOffID(1,copy);
789 stripid=gMC->CurrentVolOffID(4,copy);
792 padz = (strip-1)*2+padz;
794 gMC->TrackPosition(pos);
795 gMC->TrackMomentum(mom);
797 rho = sqrt(pos[0]*pos[0]+pos[1]*pos[1]);
798 phi = TMath::ACos(pos[0]/rho);
799 Float_t as = TMath::ASin(pos[1]/rho);
800 if (as<0) phi = 2*3.141592654-phi;
805 Float_t limA = fZlenA*0.5;
806 Float_t limB = fZlenB+limA;
808 if (TMath::Abs(z)<=limA) plate = 3;
809 if (z<= limB && z> limA) plate = 2;
810 if (z>=-limB && z<-limA) plate = 4;
811 if (z> limB) plate = 1;
812 if (z<-limB) plate = 5;
814 if (plate==3) padz -= 2;
817 sector = Int_t (phid/20.);
820 Double_t ptot = mom.Rho();
821 Double_t norm = 1/ptot;
824 hits[i+3] = mom[i]*norm;
834 Int_t track = gAlice->CurrentTrack();
835 AliTOF::AddHit(track,vol, hits);