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 1.16 2000/05/10 16:52:18 vicinanz
19 New TOF version with holes for PHOS/RICH
21 Revision 1.14.2.1 2000/05/10 09:37:16 vicinanz
22 New version with Holes for PHOS/RICH
24 Revision 1.14 1999/11/05 22:39:06 fca
27 Revision 1.13 1999/11/02 11:26:39 fca
28 added stdlib.h for exit
30 Revision 1.12 1999/11/01 20:41:57 fca
31 Added protections against using the wrong version of FRAME
33 Revision 1.11 1999/10/22 08:04:14 fca
34 Correct improper use of negative parameters
36 Revision 1.10 1999/10/16 19:30:06 fca
37 Corrected Rotation Matrix and CVS log
39 Revision 1.9 1999/10/15 15:35:20 fca
40 New version for frame1099 with and without holes
42 Revision 1.8 1999/09/29 09:24:33 fca
43 Introduction of the Copyright and cvs Log
47 ///////////////////////////////////////////////////////////////////////////////
49 // Time Of Flight: design of C.Williams
51 // This class contains the functions for version 1 of the Time Of Flight //
54 // VERSION WITH 5 MODULES AND TILTED STRIPS
56 // HOLES FOR PHOS AND RICH DETECTOR
63 // University of Salerno - Italy
68 <img src="picts/AliTOFv2Class.gif">
72 ///////////////////////////////////////////////////////////////////////////////
79 #include "TGeometry.h"
90 //_____________________________________________________________________________
94 // Default constructor
98 //_____________________________________________________________________________
99 AliTOFv2::AliTOFv2(const char *name, const char *title)
103 // Standard constructor
106 // Check that FRAME is there otherwise we have no place where to
108 AliModule* FRAME=gAlice->GetModule("FRAME");
110 Error("Ctor","TOF needs FRAME to be present\n");
113 if(FRAME->IsVersion()!=1) {
114 Error("Ctor","FRAME version 1 needed with this version of TOF\n");
120 //_____________________________________________________________________________
121 void AliTOFv2::BuildGeometry()
124 // Build TOF ROOT geometry for the ALICE event display
127 const int kColorTOF = 27;
130 Top = gAlice->GetGeometry()->GetNode("alice");
132 // Position the different copies
133 const Float_t rTof =(fRmax+fRmin)/2;
134 const Float_t hTof = fRmax-fRmin;
135 const Int_t fNTof = 18;
136 const Float_t kPi = TMath::Pi();
137 const Float_t angle = 2*kPi/fNTof;
140 // Define TOF basic volume
142 char NodeName0[6], NodeName1[6], NodeName2[6];
143 char NodeName3[6], NodeName4[6], RotMatNum[6];
145 new TBRIK("S_TOF_C","TOF box","void",
146 120*0.5,hTof*0.5,fZlenC*0.5);
147 new TBRIK("S_TOF_B","TOF box","void",
148 120*0.5,hTof*0.5,fZlenB*0.5);
149 new TBRIK("S_TOF_A","TOF box","void",
150 120*0.5,hTof*0.5,fZlenA*0.5);
152 for (Int_t NodeNum=1;NodeNum<19;NodeNum++){
155 sprintf(RotMatNum,"rot50%i",NodeNum);
156 sprintf(NodeName0,"FTO00%i",NodeNum);
157 sprintf(NodeName1,"FTO10%i",NodeNum);
158 sprintf(NodeName2,"FTO20%i",NodeNum);
159 sprintf(NodeName3,"FTO30%i",NodeNum);
160 sprintf(NodeName4,"FTO40%i",NodeNum);
163 sprintf(RotMatNum,"rot5%i",NodeNum);
164 sprintf(NodeName0,"FTO0%i",NodeNum);
165 sprintf(NodeName1,"FTO1%i",NodeNum);
166 sprintf(NodeName2,"FTO2%i",NodeNum);
167 sprintf(NodeName3,"FTO3%i",NodeNum);
168 sprintf(NodeName4,"FTO4%i",NodeNum);
171 new TRotMatrix(RotMatNum,RotMatNum,90,-20*NodeNum,90,90-20*NodeNum,0,0);
172 ang = (4.5-NodeNum) * angle;
175 Node = new TNode(NodeName0,NodeName0,"S_TOF_C",rTof*TMath::Cos(ang),rTof*TMath::Sin(ang),299.15,RotMatNum);
176 Node->SetLineColor(kColorTOF);
180 Node = new TNode(NodeName1,NodeName1,"S_TOF_C",rTof*TMath::Cos(ang),rTof*TMath::Sin(ang),-299.15,RotMatNum);
181 Node->SetLineColor(kColorTOF);
183 if (NodeNum !=1 && NodeNum!=2 && NodeNum !=18)
186 Node = new TNode(NodeName2,NodeName2,"S_TOF_B",rTof*TMath::Cos(ang),rTof*TMath::Sin(ang),146.45,RotMatNum);
187 Node->SetLineColor(kColorTOF);
191 Node = new TNode(NodeName3,NodeName3,"S_TOF_B",rTof*TMath::Cos(ang),rTof*TMath::Sin(ang),-146.45,RotMatNum);
192 Node->SetLineColor(kColorTOF);
194 } // Holes for RICH detector
196 if ((NodeNum<8 || NodeNum>12) && NodeNum !=1 && NodeNum!=2 && NodeNum
200 Node = new TNode(NodeName4,NodeName4,"S_TOF_A",rTof*TMath::Cos(ang),rTof*TMath::Sin(ang),0.,RotMatNum);
201 Node->SetLineColor(kColorTOF);
203 } // Holes for PHOS detector (+ Holes for RICH detector, central part)
209 //_____________________________________________________________________________
210 void AliTOFv2::CreateGeometry()
213 // Create geometry for Time Of Flight version 0
217 <img src="picts/AliTOFv2.gif">
221 // Creates common geometry
223 AliTOF::CreateGeometry();
226 //_____________________________________________________________________________
227 void AliTOFv2::TOFpc(Float_t xtof, Float_t ytof, Float_t zlenC,
228 Float_t zlenB, Float_t zlenA, Float_t ztof0)
231 // Definition of the Time Of Fligh Resistive Plate Chambers
232 // xFLT, yFLT, zFLT - sizes of TOF modules (large)
234 Float_t ycoor, zcoor;
236 Int_t *idtmed = fIdtmed->GetArray()-499;
239 Float_t hTof = fRmax-fRmin;
241 Float_t Radius = fRmin+2.;//cm
245 par[2] = zlenC * 0.5;
246 gMC->Gsvolu("FTOC", "BOX ", idtmed[506], par, 3);
247 par[2] = zlenB * 0.5;
248 gMC->Gsvolu("FTOB", "BOX ", idtmed[506], par, 3);
249 par[2] = zlenA * 0.5;
250 gMC->Gsvolu("FTOA", "BOX ", idtmed[506], par, 3);
253 // Positioning of modules
255 Float_t zcor1 = ztof0 - zlenC*0.5;
256 Float_t zcor2 = ztof0 - zlenC - zlenB*0.5;
259 AliMatrix(idrotm[0], 90., 0., 0., 0., 90,-90.);
260 AliMatrix(idrotm[1], 90.,180., 0., 0., 90, 90.);
261 gMC->Gspos("FTOC", 1, "BTO1", 0, zcor1, 0, idrotm[0], "ONLY");
262 gMC->Gspos("FTOC", 2, "BTO1", 0, -zcor1, 0, idrotm[1], "ONLY");
263 gMC->Gspos("FTOC", 1, "BTO2", 0, zcor1, 0, idrotm[0], "ONLY");
264 gMC->Gspos("FTOC", 2, "BTO2", 0, -zcor1, 0, idrotm[1], "ONLY");
265 gMC->Gspos("FTOC", 1, "BTO3", 0, zcor1, 0, idrotm[0], "ONLY");
266 gMC->Gspos("FTOC", 2, "BTO3", 0, -zcor1, 0, idrotm[1], "ONLY");
268 gMC->Gspos("FTOB", 1, "BTO1", 0, zcor2, 0, idrotm[0], "ONLY");
269 gMC->Gspos("FTOB", 2, "BTO1", 0, -zcor2, 0, idrotm[1], "ONLY");
270 gMC->Gspos("FTOB", 1, "BTO2", 0, zcor2, 0, idrotm[0], "ONLY");
271 gMC->Gspos("FTOB", 2, "BTO2", 0, -zcor2, 0, idrotm[1], "ONLY");
273 gMC->Gspos("FTOA", 0, "BTO1", 0, zcor3, 0, idrotm[0], "ONLY");
275 Float_t db = 0.5;//cm
276 Float_t xFLT, xFST, yFLT, zFLTA, zFLTB, zFLTC;
284 xFST = xFLT-fDeadBndX*2;//cm
286 // Sizes of MRPC pads
288 Float_t yPad = 0.505;//cm
290 // Large not sensitive volumes with CO2
294 cout <<"************************* TOF geometry **************************"<<endl;
296 par[2] = (zFLTA *0.5);
297 gMC->Gsvolu("FLTA", "BOX ", idtmed[506], par, 3); // CO2
298 gMC->Gspos ("FLTA", 0, "FTOA", 0., 0., 0., 0, "ONLY");
300 par[2] = (zFLTB * 0.5);
301 gMC->Gsvolu("FLTB", "BOX ", idtmed[506], par, 3); // CO2
302 gMC->Gspos ("FLTB", 0, "FTOB", 0., 0., 0., 0, "ONLY");
304 par[2] = (zFLTC * 0.5);
305 gMC->Gsvolu("FLTC", "BOX ", idtmed[506], par, 3); // CO2
306 gMC->Gspos ("FLTC", 0, "FTOC", 0., 0., 0., 0, "ONLY");
308 ////////// Layers before detector ////////////////////
310 // MYlar layer in front 1.0 mm thick at the beginning
314 ycoor = -yFLT/2 + par[1];
315 gMC->Gsvolu("FMYA", "BOX ", idtmed[508], par, 3); // Alluminium
316 gMC->Gspos ("FMYA", 0, "FLTA", 0., ycoor, 0., 0, "ONLY");
317 gMC->Gsvolu("FMYB", "BOX ", idtmed[508], par, 3); // Alluminium
318 gMC->Gspos ("FMYB", 0, "FLTB", 0., ycoor, 0., 0, "ONLY");
319 gMC->Gsvolu("FMYC", "BOX ", idtmed[508], par, 3); // Alluminium
320 gMC->Gspos ("FMYC", 0, "FLTC", 0., ycoor, 0., 0, "ONLY");
322 // honeycomb (special Polyethilene Layer of 1cm)
323 ycoor = ycoor + par[1];
327 ycoor = ycoor + par[1];
328 gMC->Gsvolu("FPLA", "BOX ", idtmed[503], par, 3); // Hony
329 gMC->Gspos ("FPLA", 0, "FLTA", 0., ycoor, 0., 0, "ONLY");
330 gMC->Gsvolu("FPLB", "BOX ", idtmed[503], par, 3); // Hony
331 gMC->Gspos ("FPLB", 0, "FLTB", 0., ycoor, 0., 0, "ONLY");
332 gMC->Gsvolu("FPLC", "BOX ", idtmed[503], par, 3); // Hony
333 gMC->Gspos ("FPLC", 0, "FLTC", 0., ycoor, 0., 0, "ONLY");
335 ///////////////// Detector itself //////////////////////
337 const Float_t DeadBound = fDeadBndZ; //cm non-sensitive between the pad edge
338 //and the boundary of the strip
339 const Int_t nx = fNpadX; // number of pads along x
340 const Int_t nz = fNpadZ; // number of pads along z
341 const Float_t Space = fSpace; //cm distance from the front plate of the box
343 Float_t zSenStrip = fZpad*fNpadZ;//cm
344 Float_t StripWidth = zSenStrip + 2*DeadBound;
348 par[2] = StripWidth*0.5;
350 // glass layer of detector STRip
351 gMC->Gsvolu("FSTR","BOX",idtmed[514],par,3);
353 // Non-Sesitive Freon boundaries
355 par[1] = 0.110*0.5;//cm
357 gMC->Gsvolu("FNSF","BOX",idtmed[512],par,3);
358 gMC->Gspos ("FNSF",0,"FSTR",0.,0.,0.,0,"ONLY");
360 // MYlar for Internal non-sesitive boundaries
361 // par[1] = 0.025;//cm
362 // gMC->Gsvolu("FMYI","BOX",idtmed[510],par,3);
363 // gMC->Gspos ("FMYI",0,"FNSF",0.,0.,0.,0,"MANY");
365 // MYlar eXternal layers
366 par[1] = 0.035*0.5;//cm
367 ycoor = -yPad*0.5+par[1];
368 gMC->Gsvolu("FMYX","BOX",idtmed[510],par,3);
369 gMC->Gspos ("FMYX",1,"FSTR",0.,ycoor,0.,0,"ONLY");
370 gMC->Gspos ("FMYX",2,"FSTR",0.,-ycoor,0.,0,"ONLY");
376 gMC->Gsvolu("FGRL","BOX",idtmed[502],par,3);
377 gMC->Gspos ("FGRL",1,"FSTR",0.,ycoor,0.,0,"ONLY");
378 gMC->Gspos ("FGRL",2,"FSTR",0.,-ycoor,0.,0,"ONLY");
380 // freon sensitive layer (Chlorine-Fluorine-Carbon)
383 par[2] = zSenStrip*0.5;
384 gMC->Gsvolu("FCFC","BOX",idtmed[513],par,3);
385 gMC->Gspos ("FCFC",0,"FNSF",0.,0.,0.,0,"ONLY");
387 // Pad definition x & z
388 gMC->Gsdvn("FLZ","FCFC", nz, 3);
389 gMC->Gsdvn("FLX","FLZ" , nx, 1);
395 gMC->Gsvolu("FPAD", "BOX ", idtmed[513], par, 3);
396 gMC->Gspos ("FPAD", 0, "FLX", 0., 0., 0., 0, "ONLY");
398 //// Positioning the Strips (FSTR) in the FLT volumes /////
402 Float_t t = zFLTC+zFLTB+zFLTA*0.5+ 2*db;//Half Width of Barrel
404 Float_t Gap = fGapA; //cm distance between the strip axis
410 ycoor = -14.5 + Space ; //2 cm over front plate
412 AliMatrix (idrotm[0], 90., 0.,90.,90.,0., 90.);
413 gMC->Gspos("FSTR",j,"FLTA",0.,ycoor, 0.,idrotm[0],"ONLY");
415 printf("%f, St. %2i, Pl.3 ",ang*kRaddeg,i);
416 printf("y = %f, z = %f, zpos = %f \n",ycoor,zcoor,zpos);
420 Int_t UpDown = -1; // UpDown=-1 -> Upper strip
421 // UpDown=+1 -> Lower strip
423 ang = atan(zcoor/Radius);
425 AliMatrix (idrotm[nrot], 90., 0.,90.-ang,90.,-ang, 90.);
426 AliMatrix (idrotm[nrot+1],90.,180.,90.+ang,90., ang, 90.);
428 ycoor = -14.5+ Space; //2 cm over front plate
429 ycoor += (1-(UpDown+1)/2)*Gap;
430 gMC->Gspos("FSTR",j ,"FLTA",0.,ycoor, zcoor,idrotm[nrot], "ONLY");
431 gMC->Gspos("FSTR",j+1,"FLTA",0.,ycoor,-zcoor,idrotm[nrot+1],"ONLY");
433 printf("%f, St. %2i, Pl.3 ",ang*kRaddeg,i);
434 printf("y = %f, z = %f, zpos = %f \n",ycoor,zcoor,zpos);
437 UpDown*= -1; // Alternate strips
438 zcoor = zcoor-(zSenStrip/2)/TMath::Cos(ang)-
439 UpDown*Gap*TMath::Tan(ang)-
440 (zSenStrip/2)/TMath::Cos(ang);
441 } while (zcoor-(StripWidth/2)*TMath::Cos(ang)>-t+zFLTC+zFLTB+db*2);
443 zcoor = zcoor+(zSenStrip/2)/TMath::Cos(ang)+
444 UpDown*Gap*TMath::Tan(ang)+
445 (zSenStrip/2)/TMath::Cos(ang);
448 zcoor = zcoor-(zSenStrip/2)/TMath::Cos(ang)-
449 UpDown*Gap*TMath::Tan(ang)-
450 (zSenStrip/2)/TMath::Cos(ang);
452 ang = atan(zcoor/Radius);
454 AliMatrix (idrotm[nrot], 90., 0.,90.-ang,90.,-ang, 90.);
455 AliMatrix (idrotm[nrot+1],90.,180.,90.+ang,90., ang, 90.);
458 ycoor = -14.5+ Space; //2 cm over front plate
459 ycoor += (1-(UpDown+1)/2)*Gap;
460 gMC->Gspos("FSTR",j ,"FLTA",0.,ycoor, zcoor,idrotm[nrot], "ONLY");
461 gMC->Gspos("FSTR",j+1,"FLTA",0.,ycoor,-zcoor,idrotm[nrot+1],"ONLY");
463 printf("%f, St. %2i, Pl.3 ",ang*kRaddeg,i);
464 printf("y = %f, z = %f, zpos = %f \n",ycoor,zcoor,zpos);
466 ycoor = -hTof/2.+ Space;//2 cm over front plate
473 Float_t DeadRegion = 1.0;//cm
475 zpos = zcoor - (zSenStrip/2)/TMath::Cos(ang)-
476 UpDown*Gap*TMath::Tan(ang)-
477 (zSenStrip/2)/TMath::Cos(ang)-
478 DeadRegion/TMath::Cos(ang);
480 ang = atan(zpos/Radius);
482 AliMatrix (idrotm[nrot], 90., 0., 90.-ang,90.,ang, 270.);
484 ycoor = -hTof*0.5+ Space ; //2 cm over front plate
485 ycoor += (1-(UpDown+1)/2)*Gap;
486 zcoor = zpos+(zFLTA*0.5+zFLTB*0.5+db); // Moves to the system of the modulus FLTB
487 gMC->Gspos("FSTR",i, "FLTB", 0., ycoor, zcoor,idrotm[nrot], "ONLY");
489 printf("%f, St. %2i, Pl.4 ",ang*kRaddeg,i);
490 printf("y = %f, z = %f, zpos = %f \n",ycoor,zcoor,zpos);
496 zpos = zpos - (zSenStrip/2)/TMath::Cos(ang)-
497 UpDown*Gap*TMath::Tan(ang)-
498 (zSenStrip/2)/TMath::Cos(ang);
499 ang = atan(zpos/Radius);
501 AliMatrix (idrotm[nrot], 90., 0., 90.-ang,90.,ang, 270.);
503 ycoor = -hTof*0.5+ Space ; //2 cm over front plate
504 ycoor += (1-(UpDown+1)/2)*Gap;
505 zcoor = zpos+(zFLTA*0.5+zFLTB*0.5+db); // Moves to the system of the modulus FLTB
506 gMC->Gspos("FSTR",i, "FLTB", 0., ycoor, zcoor,idrotm[nrot], "ONLY");
508 printf("%f, St. %2i, Pl.4 ",ang*kRaddeg,i);
509 printf("y = %f, z = %f, zpos = %f \n",ycoor,zcoor,zpos);
513 } while (TMath::Abs(ang*kRaddeg)<22.5);
514 //till we reach a tilting angle of 22.5 degrees
516 ycoor = -hTof*0.5+ Space ; //2 cm over front plate
517 zpos = zpos - zSenStrip/TMath::Cos(ang);
520 ang = atan(zpos/Radius);
522 AliMatrix (idrotm[nrot], 90., 0., 90.-ang,90.,ang, 270.);
524 zcoor = zpos+(zFLTB/2+zFLTA/2+db);
525 gMC->Gspos("FSTR",i, "FLTB", 0., ycoor, zcoor,idrotm[nrot], "ONLY");
526 zpos = zpos - zSenStrip/TMath::Cos(ang);
527 printf("%f, St. %2i, Pl.4 ",ang*kRaddeg,i);
528 printf("y = %f, z = %f, zpos = %f \n",ycoor,zcoor,zpos);
531 } while (zpos-StripWidth*0.5/TMath::Cos(ang)>-t+zFLTC+db);
535 zpos = zpos + zSenStrip/TMath::Cos(ang);
537 zpos = zpos - (zSenStrip/2)/TMath::Cos(ang)+
539 (zSenStrip/2)/TMath::Cos(ang);
543 ycoor= -hTof*0.5+Space+Gap;
547 ang = atan(zpos/Radius);
549 AliMatrix (idrotm[nrot], 90., 0., 90.-ang,90.,ang, 270.);
551 zcoor = zpos+(zFLTC*0.5+zFLTB+zFLTA*0.5+db*2);
552 gMC->Gspos("FSTR",i, "FLTC", 0., ycoor, zcoor,idrotm[nrot], "ONLY");
554 printf("%f, St. %2i, Pl.5 ",ang*kRaddeg,i);
555 printf("y = %f, z = %f, zpos = %f \n",ycoor,zcoor,zpos);
557 zpos = zpos - zSenStrip/TMath::Cos(ang);
558 } while (zpos-StripWidth*TMath::Cos(ang)*0.5>-t);
561 ////////// Layers after detector /////////////////
563 // honeycomb (Polyethilene) Layer after (3cm)
565 Float_t OverSpace = fOverSpc;//cm
570 ycoor = -yFLT/2 + OverSpace + par[1];
571 gMC->Gsvolu("FPEA", "BOX ", idtmed[503], par, 3); // Hony
572 gMC->Gspos ("FPEA", 0, "FLTA", 0., ycoor, 0., 0, "ONLY");
573 gMC->Gsvolu("FPEB", "BOX ", idtmed[503], par, 3); // Hony
574 gMC->Gspos ("FPEB", 0, "FLTB", 0., ycoor, 0., 0, "ONLY");
575 gMC->Gsvolu("FPEC", "BOX ", idtmed[503], par, 3); // Hony
576 gMC->Gspos ("FPEC", 0, "FLTC", 0., ycoor, 0., 0, "ONLY");
578 // Electronics (Cu) after
581 par[1] = 1.43*0.05*0.5; // 5% of X0
584 gMC->Gsvolu("FECA", "BOX ", idtmed[501], par, 3); // Cu
585 gMC->Gspos ("FECA", 0, "FLTA", 0., ycoor, 0., 0, "ONLY");
586 gMC->Gsvolu("FECB", "BOX ", idtmed[501], par, 3); // Cu
587 gMC->Gspos ("FECB", 0, "FLTB", 0., ycoor, 0., 0, "ONLY");
588 gMC->Gsvolu("FECC", "BOX ", idtmed[501], par, 3); // Cu
589 gMC->Gspos ("FECC", 0, "FLTC", 0., ycoor, 0., 0, "ONLY");
591 // cooling WAter after
594 par[1] = 36.1*0.02*0.5; // 2% of X0
597 gMC->Gsvolu("FWAA", "BOX ", idtmed[515], par, 3); // Water
598 gMC->Gspos ("FWAA", 0, "FLTA", 0., ycoor, 0., 0, "ONLY");
599 gMC->Gsvolu("FWAB", "BOX ", idtmed[515], par, 3); // Water
600 gMC->Gspos ("FWAB", 0, "FLTB", 0., ycoor, 0., 0, "ONLY");
601 gMC->Gsvolu("FWAC", "BOX ", idtmed[515], par, 3); // Water
602 gMC->Gspos ("FWAC", 0, "FLTC", 0., ycoor, 0., 0, "ONLY");
604 //Back Plate honycomb (2cm)
608 ycoor = yFLT/2 - par[1];
609 gMC->Gsvolu("FBPA", "BOX ", idtmed[503], par, 3); // Hony
610 gMC->Gspos ("FBPA", 0, "FLTA", 0., ycoor, 0., 0, "ONLY");
611 gMC->Gsvolu("FBPB", "BOX ", idtmed[503], par, 3); // Hony
612 gMC->Gspos ("FBPB", 0, "FLTB", 0., ycoor, 0., 0, "ONLY");
613 gMC->Gsvolu("FBPC", "BOX ", idtmed[503], par, 3); // Hony
614 gMC->Gspos ("FBPC", 0, "FLTC", 0., ycoor, 0., 0, "ONLY");
617 //_____________________________________________________________________________
618 void AliTOFv2::DrawModule()
621 // Draw a shaded view of the Time Of Flight version 1
623 // Set everything unseen
624 gMC->Gsatt("*", "seen", -1);
626 // Set ALIC mother transparent
627 gMC->Gsatt("ALIC","SEEN",0);
629 // Set the volumes visible
630 gMC->Gsatt("ALIC","SEEN",0);
632 gMC->Gsatt("FTOA","SEEN",1);
633 gMC->Gsatt("FTOB","SEEN",1);
634 gMC->Gsatt("FTOC","SEEN",1);
635 gMC->Gsatt("FLTA","SEEN",1);
636 gMC->Gsatt("FLTB","SEEN",1);
637 gMC->Gsatt("FLTC","SEEN",1);
638 gMC->Gsatt("FPLA","SEEN",1);
639 gMC->Gsatt("FPLB","SEEN",1);
640 gMC->Gsatt("FPLC","SEEN",1);
641 gMC->Gsatt("FSTR","SEEN",1);
642 gMC->Gsatt("FPEA","SEEN",1);
643 gMC->Gsatt("FPEB","SEEN",1);
644 gMC->Gsatt("FPEC","SEEN",1);
646 gMC->Gsatt("FLZ1","SEEN",0);
647 gMC->Gsatt("FLZ2","SEEN",0);
648 gMC->Gsatt("FLZ3","SEEN",0);
649 gMC->Gsatt("FLX1","SEEN",0);
650 gMC->Gsatt("FLX2","SEEN",0);
651 gMC->Gsatt("FLX3","SEEN",0);
652 gMC->Gsatt("FPAD","SEEN",0);
654 gMC->Gdopt("hide", "on");
655 gMC->Gdopt("shad", "on");
656 gMC->Gsatt("*", "fill", 7);
657 gMC->SetClipBox(".");
658 gMC->SetClipBox("*", 0, 1000, -1000, 1000, -1000, 1000);
660 gMC->Gdraw("alic", 40, 30, 0, 12, 9.5, .02, .02);
661 gMC->Gdhead(1111, "Time Of Flight");
662 gMC->Gdman(18, 4, "MAN");
663 gMC->Gdopt("hide","off");
666 //_____________________________________________________________________________
667 void AliTOFv2::CreateMaterials()
670 // Define materials for the Time Of Flight
672 AliTOF::CreateMaterials();
675 //_____________________________________________________________________________
676 void AliTOFv2::Init()
679 // Initialise the detector after the geometry has been defined
681 printf("**************************************"
683 "**************************************\n");
684 printf("\n Version 2 of TOF initialing, "
685 "TOF with holes for PHOS and RICH \n");
689 fIdFTOA = gMC->VolId("FTOA");
690 fIdFTOB = gMC->VolId("FTOB");
691 fIdFTOC = gMC->VolId("FTOC");
692 fIdFLTA = gMC->VolId("FLTA");
693 fIdFLTB = gMC->VolId("FLTB");
694 fIdFLTC = gMC->VolId("FLTC");
696 printf("**************************************"
698 "**************************************\n");
701 //_____________________________________________________________________________
702 void AliTOFv2::StepManager()
705 // Procedure called at each step in the Time Of Flight
707 TLorentzVector mom, pos;
708 Float_t xm[3],pm[3],xpad[3],ppad[3];
709 Float_t hits[13],phi,phid,z;
711 Int_t sector, plate, pad_x, pad_z, strip;
712 Int_t copy, pad_z_id, pad_x_id, strip_id, i;
713 Int_t *idtmed = fIdtmed->GetArray()-499;
714 Float_t IncidenceAngle;
716 if(gMC->GetMedium()==idtmed[513] &&
717 gMC->IsTrackEntering() && gMC->TrackCharge()
718 && gMC->CurrentVolID(copy)==fIdSens)
720 // getting information about hit volumes
722 pad_z_id=gMC->CurrentVolOffID(2,copy);
725 pad_x_id=gMC->CurrentVolOffID(1,copy);
728 strip_id=gMC->CurrentVolOffID(5,copy);
731 gMC->TrackPosition(pos);
732 gMC->TrackMomentum(mom);
734 // Double_t NormPos=1./pos.Rho();
735 Double_t NormMom=1./mom.Rho();
737 // getting the cohordinates in pad ref system
738 xm[0] = (Float_t)pos.X();
739 xm[1] = (Float_t)pos.Y();
740 xm[2] = (Float_t)pos.Z();
742 pm[0] = (Float_t)mom.X()*NormMom;
743 pm[1] = (Float_t)mom.Y()*NormMom;
744 pm[2] = (Float_t)mom.Z()*NormMom;
746 gMC->Gmtod(xm,xpad,1);
747 gMC->Gmtod(pm,ppad,2);
749 IncidenceAngle = TMath::ACos(ppad[1])*kRaddeg;
754 if (TMath::Abs(z) <= fZlenA*0.5) plate = 3;
755 if (z < (fZlenA*0.5+fZlenB) &&
756 z > fZlenA*0.5) plate = 4;
757 if (z >-(fZlenA*0.5+fZlenB) &&
758 z < -fZlenA*0.5) plate = 2;
759 if (z > (fZlenA*0.5+fZlenB)) plate = 5;
760 if (z <-(fZlenA*0.5+fZlenB)) plate = 1;
763 phid = phi*kRaddeg+180.;
764 sector = Int_t (phid/20.);
777 hits[11]= IncidenceAngle;
778 hits[12]= gMC->Edep();
786 AddHit(gAlice->CurrentTrack(),vol, hits);