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add processing of position/error for y center pad dependence
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1 /**************************************************************************
2  * Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
3  *                                                                        *
4  * Author: The ALICE Off-line Project.                                    *
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11  * appear in the supporting documentation. The authors make no claims     *
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13  * provided "as is" without express or implied warranty.                  *
14  **************************************************************************/
15
16 /* $Id$ */
17
18 ///////////////////////////////////////////////////////////////////////////////
19 //                                                                           //
20 //  This class contains the functions for version 0 of the Time Of Flight    //
21 //  detector.                                                                //
22 //                                                                           //
23 //  VERSION WITH 5 MODULES AND TILTED STRIPS                                 //
24 //  NO HITS DEFINED BY DEFAULT FOR THIS VERSION                              //
25 //   FULL COVERAGE VERSION                                                   //
26 //                                                                           //
27 //   Authors:                                                                //
28 //                                                                           //
29 //   Alessio Seganti                                                         //
30 //   Domenico Vicinanza                                                      //
31 //                                                                           //
32 //   University of Salerno - Italy                                           //
33 //                                                                           //
34 //   Fabrizio Pierella                                                       //
35 //   University of Bologna - Italy                                           //
36 //                                                                           //
37 //                                                                           //
38 //Begin_Html                                                                 //
39 /*                                                                           //
40 <img src="picts/AliTOFv0Class.gif">                                          //
41 */                                                                           //
42 //End_Html                                                                   //
43 //                                                                           //
44 ///////////////////////////////////////////////////////////////////////////////
45
46 #include <Riostream.h>
47 #include <stdlib.h>
48
49 #include <TBRIK.h>
50 #include <TGeometry.h>
51 #include <TLorentzVector.h>
52 #include <TNode.h>
53 #include <TObject.h>
54 #include <TVirtualMC.h>
55
56 #include "AliConst.h"
57 #include "AliRun.h"
58 #include "AliTOFv0.h"
59 #include "AliTOFConstants.h" // AdC
60 #include "AliMC.h"
61  
62 ClassImp(AliTOFv0)
63  
64 //_____________________________________________________________________________
65 AliTOFv0::AliTOFv0()
66 {
67   //
68   // Default constructor
69   //
70 }
71  
72 //_____________________________________________________________________________
73 AliTOFv0::AliTOFv0(const char *name, const char *title)
74         : AliTOF(name,title)
75 {
76   //
77   // Standard constructor
78   //
79   //
80   // Check that FRAME is there otherwise we have no place where to
81   // put TOF
82   AliModule* frame=gAlice->GetModule("FRAME");
83   if(!frame) {
84     Error("Ctor","TOF needs FRAME to be present\n");
85     exit(1);
86   } else
87     if(frame->IsVersion()!=1) {
88       Error("Ctor","FRAME version 1 needed with this version of TOF\n");
89       exit(1);
90     }
91  
92 }
93
94 //_____________________________________________________________________________
95 void AliTOFv0::CreateGeometry()
96 {
97   //
98   // Create geometry for Time Of Flight version 0
99   //
100   //Begin_Html
101   /*
102     <img src="picts/AliTOFv0.gif">
103   */
104   //End_Html
105   //
106   // Creates common geometry
107   //
108   AliTOF::CreateGeometry();
109 }
110  
111 //_____________________________________________________________________________
112 void AliTOFv0::TOFpc(Float_t xtof, Float_t ytof, Float_t zlenC,
113                      Float_t zlenB, Float_t zlenA, Float_t ztof0)
114 {
115   //
116   // Definition of the Time Of Fligh Resistive Plate Chambers
117   // xFLT, yFLT, zFLT - sizes of TOF modules (large)
118   
119   Float_t  ycoor, zcoor;
120   Float_t  par[3];
121   Int_t    *idtmed = fIdtmed->GetArray()-499;
122   Int_t    idrotm[100];
123   Int_t    nrot = 0;
124   Float_t  hTof = fRmax-fRmin;
125   
126   Float_t radius = fRmin+2.;//cm
127
128   par[0] =  xtof * 0.5;
129   par[1] =  ytof * 0.5;
130   par[2] = zlenC * 0.5;
131   gMC->Gsvolu("FTOC", "BOX ", idtmed[506], par, 3);
132   par[2] = zlenB * 0.5;
133   gMC->Gsvolu("FTOB", "BOX ", idtmed[506], par, 3);
134   par[2] = zlenA * 0.5;
135   gMC->Gsvolu("FTOA", "BOX ", idtmed[506], par, 3);
136
137
138 // Positioning of modules
139
140    Float_t zcor1 = ztof0 - zlenC*0.5;
141    Float_t zcor2 = ztof0 - zlenC - zlenB*0.5;
142    Float_t zcor3 = 0.;
143
144    AliMatrix(idrotm[0], 90.,  0., 0., 0., 90,-90.);
145    AliMatrix(idrotm[1], 90.,180., 0., 0., 90, 90.);
146    gMC->Gspos("FTOC", 1, "BTO1", 0,  zcor1, 0, idrotm[0], "ONLY");
147    gMC->Gspos("FTOC", 2, "BTO1", 0, -zcor1, 0, idrotm[1], "ONLY");
148    gMC->Gspos("FTOC", 1, "BTO2", 0,  zcor1, 0, idrotm[0], "ONLY");
149    gMC->Gspos("FTOC", 2, "BTO2", 0, -zcor1, 0, idrotm[1], "ONLY");
150    gMC->Gspos("FTOC", 1, "BTO3", 0,  zcor1, 0, idrotm[0], "ONLY");
151    gMC->Gspos("FTOC", 2, "BTO3", 0, -zcor1, 0, idrotm[1], "ONLY");
152
153    gMC->Gspos("FTOB", 1, "BTO1", 0,  zcor2, 0, idrotm[0], "ONLY");
154    gMC->Gspos("FTOB", 2, "BTO1", 0, -zcor2, 0, idrotm[1], "ONLY");
155    gMC->Gspos("FTOB", 1, "BTO2", 0,  zcor2, 0, idrotm[0], "ONLY");
156    gMC->Gspos("FTOB", 2, "BTO2", 0, -zcor2, 0, idrotm[1], "ONLY");
157    gMC->Gspos("FTOB", 1, "BTO3", 0,  zcor2, 0, idrotm[0], "ONLY");
158    gMC->Gspos("FTOB", 2, "BTO3", 0, -zcor2, 0, idrotm[1], "ONLY");
159
160    gMC->Gspos("FTOA", 0, "BTO1", 0, zcor3,  0, idrotm[0], "ONLY");
161    gMC->Gspos("FTOA", 0, "BTO2", 0, zcor3,  0, idrotm[0], "ONLY");
162    gMC->Gspos("FTOA", 0, "BTO3", 0, zcor3,  0, idrotm[0], "ONLY");
163
164   Float_t db = 0.5;//cm
165   Float_t xFLT, xFST, yFLT, zFLTA, zFLTB, zFLTC;
166
167   xFLT = fStripLn;
168   yFLT = ytof;
169   zFLTA = zlenA;
170   zFLTB = zlenB;
171   zFLTC = zlenC;
172
173   xFST = xFLT-fDeadBndX*2;//cm
174
175 // Sizes of MRPC pads
176
177   Float_t yPad = 0.505;//cm 
178   
179 // Large not sensitive volumes with Insensitive Freon
180   par[0] = xFLT*0.5;
181   par[1] = yFLT*0.5;
182   
183   cout <<"************************* TOF geometry **************************"<<endl;
184  
185   par[2] = (zFLTA *0.5);
186   gMC->Gsvolu("FLTA", "BOX ", idtmed[512], par, 3); // Insensitive Freon
187   gMC->Gspos ("FLTA", 0, "FTOA", 0., 0., 0., 0, "ONLY");
188
189   par[2] = (zFLTB * 0.5);
190   gMC->Gsvolu("FLTB", "BOX ", idtmed[512], par, 3); // Insensitive Freon
191   gMC->Gspos ("FLTB", 0, "FTOB", 0., 0., 0., 0, "ONLY");
192
193   par[2] = (zFLTC * 0.5);
194   gMC->Gsvolu("FLTC", "BOX ", idtmed[512], par, 3); // Insensitive Freon
195   gMC->Gspos ("FLTC", 0, "FTOC", 0., 0., 0., 0, "ONLY");
196  
197 ////////// Layers of Aluminum before and after detector //////////
198 ////////// Aluminum Box for Modules (2.0 mm thickness)  /////////
199 ////////// lateral walls not simulated
200   par[0] = xFLT*0.5;
201   par[1] = 0.1;//cm
202   ycoor = -yFLT/2 + par[1];
203   par[2] = (zFLTA *0.5);
204   gMC->Gsvolu("FALA", "BOX ", idtmed[508], par, 3); // Alluminium
205   gMC->Gspos ("FALA", 1, "FLTA", 0., ycoor, 0., 0, "ONLY");
206   gMC->Gspos ("FALA", 2, "FLTA", 0.,-ycoor, 0., 0, "ONLY");
207   par[2] = (zFLTB *0.5);
208   gMC->Gsvolu("FALB", "BOX ", idtmed[508], par, 3); // Alluminium 
209   gMC->Gspos ("FALB", 1, "FLTB", 0., ycoor, 0., 0, "ONLY");
210   gMC->Gspos ("FALB", 2, "FLTB", 0.,-ycoor, 0., 0, "ONLY");
211   par[2] = (zFLTC *0.5);
212   gMC->Gsvolu("FALC", "BOX ", idtmed[508], par, 3); // Alluminium
213   gMC->Gspos ("FALC", 1, "FLTC", 0., ycoor, 0., 0, "ONLY");
214   gMC->Gspos ("FALC", 2, "FLTC", 0.,-ycoor, 0., 0, "ONLY");
215   
216 ///////////////// Detector itself //////////////////////
217   const Float_t  kdeadBound  =  fDeadBndZ; //cm non-sensitive between the pad edge 
218                                           //and the boundary of the strip
219   const Int_t    knx    = fNpadX;          // number of pads along x
220   const Int_t    knz    = fNpadZ;          // number of pads along z
221   const Float_t  kspace = fSpace;            //cm distance from the front plate of the box
222
223   Float_t zSenStrip  = fZpad*fNpadZ;//cm
224   Float_t stripWidth = zSenStrip + 2*kdeadBound;
225   par[0] = xFLT*0.5;
226   par[1] = yPad*0.5; 
227   par[2] = stripWidth*0.5;
228   
229 // new description for strip volume -double stack strip-
230 // -- all constants are expressed in cm
231 // heigth of different layers
232   const Float_t khhony = 1.      ;   // heigth of HONY  Layer
233   const Float_t khpcby = 0.15    ;   // heigth of PCB   Layer
234   const Float_t khmyly = 0.035   ;   // heigth of MYLAR Layer
235   const Float_t khgraphy = 0.02  ;   // heigth of GRAPHITE Layer
236   const Float_t khglasseiy = 0.17;   // 0.6 Ext. Glass + 1.1 i.e. (Int. Glass/2) (mm)
237   const Float_t khsensmy = 0.11  ;   // heigth of Sensitive Freon Mixture
238   const Float_t kwsensmz = 2*3.5 ;   // cm
239   const Float_t klsensmx = 48*2.5;   // cm
240   const Float_t kwpadz = 3.5;   // cm z dimension of the FPAD volume
241   const Float_t klpadx = 2.5;   // cm x dimension of the FPAD volume
242   
243   // heigth of the FSTR Volume (the strip volume)
244   const Float_t khstripy = 2*khhony+3*khpcby+4*(khmyly+khgraphy+khglasseiy)+2*khsensmy;
245   // width  of the FSTR Volume (the strip volume)
246   const Float_t kwstripz = 10.;
247   // length of the FSTR Volume (the strip volume)
248   const Float_t klstripx = 122.;
249   
250   Float_t parfp[3]={klstripx*0.5,khstripy*0.5,kwstripz*0.5};
251 // coordinates of the strip center in the strip reference frame; used for positioning
252 // internal strip volumes
253   Float_t posfp[3]={0.,0.,0.};   
254
255   
256   // FSTR volume definition and filling this volume with non sensitive Gas Mixture
257   gMC->Gsvolu("FSTR","BOX",idtmed[512],parfp,3);
258   //-- HONY Layer definition
259 //  parfp[0] = -1;
260   parfp[1] = khhony*0.5;
261 //  parfp[2] = -1;
262   gMC->Gsvolu("FHON","BOX",idtmed[503],parfp,3);
263   // positioning 2 HONY Layers on FSTR volume
264
265   posfp[1]=-khstripy*0.5+parfp[1];
266   gMC->Gspos("FHON",1,"FSTR",0., posfp[1],0.,0,"ONLY");
267   gMC->Gspos("FHON",2,"FSTR",0.,-posfp[1],0.,0,"ONLY");
268
269   //-- PCB Layer definition 
270   parfp[1] = khpcby*0.5;
271   gMC->Gsvolu("FPCB","BOX",idtmed[504],parfp,3);
272   // positioning 2 PCB Layers on FSTR volume
273   posfp[1]=-khstripy*0.5+khhony+parfp[1];
274   gMC->Gspos("FPCB",1,"FSTR",0., posfp[1],0.,0,"ONLY");
275   gMC->Gspos("FPCB",2,"FSTR",0.,-posfp[1],0.,0,"ONLY");
276   // positioning the central PCB layer
277   gMC->Gspos("FPCB",3,"FSTR",0.,0.,0.,0,"ONLY");
278
279
280
281   //-- MYLAR Layer definition
282   parfp[1] = khmyly*0.5;
283   gMC->Gsvolu("FMYL","BOX",idtmed[511],parfp,3);
284   // positioning 2 MYLAR Layers on FSTR volume
285   posfp[1] = -khstripy*0.5+khhony+khpcby+parfp[1]; 
286   gMC->Gspos("FMYL",1,"FSTR",0., posfp[1],0.,0,"ONLY");
287   gMC->Gspos("FMYL",2,"FSTR",0.,-posfp[1],0.,0,"ONLY");
288   // adding further 2 MYLAR Layers on FSTR volume
289   posfp[1] = khpcby*0.5+parfp[1];
290   gMC->Gspos("FMYL",3,"FSTR",0., posfp[1],0.,0,"ONLY");
291   gMC->Gspos("FMYL",4,"FSTR",0.,-posfp[1],0.,0,"ONLY");
292
293
294   //-- Graphite Layer definition
295   parfp[1] = khgraphy*0.5;
296   gMC->Gsvolu("FGRP","BOX",idtmed[502],parfp,3);
297   // positioning 2 Graphite Layers on FSTR volume
298   posfp[1] = -khstripy*0.5+khhony+khpcby+khmyly+parfp[1];
299   gMC->Gspos("FGRP",1,"FSTR",0., posfp[1],0.,0,"ONLY");
300   gMC->Gspos("FGRP",2,"FSTR",0.,-posfp[1],0.,0,"ONLY");
301   // adding further 2 Graphite Layers on FSTR volume
302   posfp[1] = khpcby*0.5+khmyly+parfp[1];
303   gMC->Gspos("FGRP",3,"FSTR",0., posfp[1],0.,0,"ONLY");
304   gMC->Gspos("FGRP",4,"FSTR",0.,-posfp[1],0.,0,"ONLY");
305  
306
307   //-- Glass (EXT. +Semi INT.) Layer definition
308   parfp[1] = khglasseiy*0.5;
309   gMC->Gsvolu("FGLA","BOX",idtmed[514],parfp,3);
310   // positioning 2 Glass Layers on FSTR volume
311   posfp[1] = -khstripy*0.5+khhony+khpcby+khmyly+khgraphy+parfp[1];
312   gMC->Gspos("FGLA",1,"FSTR",0., posfp[1],0.,0,"ONLY");
313   gMC->Gspos("FGLA",2,"FSTR",0.,-posfp[1],0.,0,"ONLY");
314   // adding further 2 Glass Layers on FSTR volume
315   posfp[1] = khpcby*0.5+khmyly+khgraphy+parfp[1];
316   gMC->Gspos("FGLA",3,"FSTR",0., posfp[1],0.,0,"ONLY");
317   gMC->Gspos("FGLA",4,"FSTR",0.,-posfp[1],0.,0,"ONLY");
318
319   
320   //-- Sensitive Mixture Layer definition
321   parfp[0] = klsensmx*0.5;
322   parfp[1] = khsensmy*0.5;
323   parfp[2] = kwsensmz*0.5;
324   gMC->Gsvolu("FSEN","BOX",idtmed[513],parfp,3);
325   gMC->Gsvolu("FNSE","BOX",idtmed[512],parfp,3);
326   // positioning 2 gas Layers on FSTR volume
327   // the upper is insensitive freon
328   // while the remaining is sensitive
329   posfp[1] = khpcby*0.5+khmyly+khgraphy+khglasseiy+parfp[1];
330   gMC->Gspos("FNSE",0,"FSTR", 0., posfp[1],0.,0,"ONLY");
331   gMC->Gspos("FSEN",0,"FSTR", 0.,-posfp[1],0.,0,"ONLY");
332
333   // dividing FSEN along z in knz=2 and along x in knx=48
334   gMC->Gsdvn("FSEZ","FSEN",knz,3);
335   gMC->Gsdvn("FSEX","FSEZ",knx,1);
336   
337   // FPAD volume definition
338   parfp[0] = klpadx*0.5;    
339   parfp[1] = khsensmy*0.5;
340   parfp[2] = kwpadz*0.5;
341   gMC->Gsvolu("FPAD","BOX",idtmed[513],parfp,3);
342   // positioning the FPAD volumes on previous divisions
343   gMC->Gspos("FPAD",0,"FSEX",0.,0.,0.,0,"ONLY");
344   
345 ////  Positioning the Strips  (FSTR) in the FLT volumes  /////
346
347   // Plate A (Central) 
348   
349   Float_t t = zFLTC+zFLTB+zFLTA*0.5+ 2*db;//Half Width of Barrel
350
351   Float_t gap  = fGapA+0.5; //cm  updated distance between the strip axis
352   Float_t zpos = 0;
353   Float_t ang  = 0;
354   Int_t j=1; // AdC
355   nrot  = 0;
356   zcoor = 0;
357   ycoor = -14.5 + kspace ; //2 cm over front plate
358
359   AliMatrix (idrotm[0],  90.,  0.,90.,90.,0., 90.);   
360
361   Int_t centerLoc= (Int_t)(fNStripA/2.) + 1; // AdC
362
363   //gMC->Gspos("FSTR",j,"FLTA",0.,ycoor, 0.,idrotm[0],"ONLY");
364   gMC->Gspos("FSTR",centerLoc,"FLTA",0.,ycoor, 0.,idrotm[0],"ONLY"); // AdC
365   if(fDebug>=1) {
366     printf("%s: %f,  St. %2i, Pl.3 ",ClassName(),ang*kRaddeg,j); // AdC
367     printf("y = %f,  z = %f, zpos = %f \n",ycoor,zcoor,zpos);
368   }
369   zcoor -= zSenStrip;
370   //j++; // AdC
371   Int_t upDown = -1; // upDown=-1 -> Upper strip
372                      // upDown=+1 -> Lower strip
373   do{
374      ang = atan(zcoor/radius);
375      ang *= kRaddeg;
376      AliMatrix (idrotm[nrot],  90.,  0.,90.-ang,90.,-ang, 90.);   
377      AliMatrix (idrotm[nrot+1],90.,180.,90.+ang,90., ang, 90.);
378      ang /= kRaddeg;
379      ycoor = -14.5+ kspace; //2 cm over front plate
380      ycoor += (1-(upDown+1)/2)*gap;
381      //gMC->Gspos("FSTR",j  ,"FLTA",0.,ycoor, zcoor,idrotm[nrot],  "ONLY");
382      //gMC->Gspos("FSTR",j+1,"FLTA",0.,ycoor,-zcoor,idrotm[nrot+1],"ONLY");
383     gMC->Gspos("FSTR",centerLoc-j,"FLTA",0.,ycoor, zcoor,idrotm[nrot],  "ONLY"); // AdC
384     gMC->Gspos("FSTR",centerLoc+j,"FLTA",0.,ycoor,-zcoor,idrotm[nrot+1],"ONLY"); // AdC
385     if(fDebug>=1) {
386       printf("%s: %f,  St. %2i, Pl.3 ",ClassName(),ang*kRaddeg,j); // AdC
387       printf("y = %f,  z = %f, zpos = %f \n",ycoor,zcoor,zpos);
388     }
389     //j += 2; // AdC
390     upDown*= -1; // Alternate strips 
391     zcoor = zcoor-(zSenStrip/2)/TMath::Cos(ang)-
392       upDown*gap*TMath::Tan(ang)-
393       (zSenStrip/2)/TMath::Cos(ang);
394   } while (zcoor-(stripWidth/2)*TMath::Cos(ang)>-t+zFLTC+zFLTB+db*2);
395   
396   zcoor = zcoor+(zSenStrip/2)/TMath::Cos(ang)+
397     upDown*gap*TMath::Tan(ang)+
398     (zSenStrip/2)/TMath::Cos(ang);
399   
400   gap = fGapB;
401   zcoor = zcoor-(zSenStrip/2)/TMath::Cos(ang)-
402     upDown*gap*TMath::Tan(ang)-
403     (zSenStrip/2)/TMath::Cos(ang);
404   
405   ang = atan(zcoor/radius);
406   ang *= kRaddeg;
407   AliMatrix (idrotm[nrot],  90.,  0.,90.-ang,90.,-ang, 90.);   
408   AliMatrix (idrotm[nrot+1],90.,180.,90.+ang,90., ang, 90.);
409   ang /= kRaddeg;
410           
411   ycoor = -14.5+ kspace; //2 cm over front plate
412   ycoor += (1-(upDown+1)/2)*gap;
413   //gMC->Gspos("FSTR",j  ,"FLTA",0.,ycoor, zcoor,idrotm[nrot],  "ONLY");
414   //gMC->Gspos("FSTR",j+1,"FLTA",0.,ycoor,-zcoor,idrotm[nrot+1],"ONLY");
415   gMC->Gspos("FSTR",centerLoc-j,"FLTA",0.,ycoor, zcoor,idrotm[nrot],  "ONLY"); // AdC
416   gMC->Gspos("FSTR",centerLoc+j,"FLTA",0.,ycoor,-zcoor,idrotm[nrot+1],"ONLY"); // AdC
417   if(fDebug>=1) {
418     printf("%s: %f,  St. %2i, Pl.3 ",ClassName(),ang*kRaddeg,j); // AdC
419     printf("y = %f,  z = %f, zpos = %f \n",ycoor,zcoor,zpos);
420   }
421   ycoor = -hTof/2.+ kspace;//2 cm over front plate
422
423   // Plate  B
424
425   nrot = 0;
426   Int_t i=1; // AdC
427   upDown = 1;
428   Float_t deadRegion = 1.0;//cm
429   
430   zpos = zcoor - (zSenStrip/2)/TMath::Cos(ang)-
431          upDown*gap*TMath::Tan(ang)-
432          (zSenStrip/2)/TMath::Cos(ang)-
433          deadRegion/TMath::Cos(ang);
434
435   ang = atan(zpos/radius);
436   ang *= kRaddeg;
437   AliMatrix (idrotm[nrot], 90., 0., 90.-ang,90.,ang, 270.);
438   ang /= kRaddeg;
439   ycoor = -hTof*0.5+ kspace ; //2 cm over front plate
440   ycoor += (1-(upDown+1)/2)*gap;
441   zcoor = zpos+(zFLTA*0.5+zFLTB*0.5+db); // Moves to the system of the modulus FLTB
442   gMC->Gspos("FSTR",i, "FLTB", 0., ycoor, zcoor,idrotm[nrot], "ONLY");
443   if(fDebug>=1) {   
444     printf("%s: %f,  St. %2i, Pl.4 ",ClassName(),ang*kRaddeg,i); 
445     printf("y = %f,  z = %f, zpos = %f \n",ycoor,zcoor,zpos);
446   }
447   i++;
448   upDown*=-1;
449
450   do {
451      zpos = zpos - (zSenStrip/2)/TMath::Cos(ang)-
452             upDown*gap*TMath::Tan(ang)-
453             (zSenStrip/2)/TMath::Cos(ang);
454      ang = atan(zpos/radius);
455      ang *= kRaddeg;
456      AliMatrix (idrotm[nrot], 90., 0., 90.-ang,90.,ang, 270.);
457      ang /= kRaddeg;
458      Float_t deltaSpaceinB=-0.5; // [cm] to avoid overlaps with the end of freon frame
459      Float_t deltaGapinB=0.5;    // [cm] to avoid overlaps in between initial strips
460      ycoor = -hTof*0.5+ kspace+deltaSpaceinB ; //2 cm over front plate
461      ycoor += (1-(upDown+1)/2)*(gap+deltaGapinB);
462      zcoor = zpos+(zFLTA*0.5+zFLTB*0.5+db); // Moves to the system of the modulus FLTB
463      gMC->Gspos("FSTR",i, "FLTB", 0., ycoor, zcoor,idrotm[nrot], "ONLY");
464      if(fDebug>=1) {   
465        printf("%s: %f,  St. %2i, Pl.4 ",ClassName(),ang*kRaddeg,i); 
466        printf("y = %f,  z = %f, zpos = %f \n",ycoor,zcoor,zpos);
467      }
468      upDown*=-1;
469      i++;
470   } while (TMath::Abs(ang*kRaddeg)<22.5);
471   //till we reach a tilting angle of 22.5 degrees
472
473   ycoor = -hTof*0.5+ kspace ; //2 cm over front plate
474   zpos = zpos - zSenStrip/TMath::Cos(ang);
475   // this avoid overlaps in between outer strips in plate B
476   Float_t deltaMovingUp=0.8;    // [cm]
477   Float_t deltaMovingDown=-0.5; // [cm]
478
479   do {
480      ang = atan(zpos/radius);
481      ang *= kRaddeg;
482      AliMatrix (idrotm[nrot], 90., 0., 90.-ang,90.,ang, 270.);
483      ang /= kRaddeg;
484      zcoor = zpos+(zFLTB/2+zFLTA/2+db);
485      gMC->Gspos("FSTR",i, "FLTB", 0., ycoor+deltaMovingDown+deltaMovingUp, zcoor,idrotm[nrot], "ONLY");
486      deltaMovingUp+=0.8; // update delta moving toward the end of the plate
487      zpos = zpos - zSenStrip/TMath::Cos(ang);
488      if(fDebug>=1) {
489        printf("%s: %f,  St. %2i, Pl.4 ",ClassName(),ang*kRaddeg,i);
490        printf("y = %f,  z = %f, zpos = %f \n",ycoor,zcoor,zpos);
491      }
492      i++;
493   }  while (zpos-stripWidth*0.5/TMath::Cos(ang)>-t+zFLTC+db);
494   
495   // Plate  C
496   
497   zpos = zpos + zSenStrip/TMath::Cos(ang);
498
499   zpos = zpos - (zSenStrip/2)/TMath::Cos(ang)+
500          gap*TMath::Tan(ang)-
501          (zSenStrip/2)/TMath::Cos(ang);
502
503   nrot = 0;
504   i=0;
505   Float_t deltaGap=-2.5; // [cm] update distance from strip center and plate
506   ycoor= -hTof*0.5+kspace+gap+deltaGap;
507
508   do {
509      i++;
510      ang = atan(zpos/radius);
511      ang *= kRaddeg;
512      AliMatrix (idrotm[nrot], 90., 0., 90.-ang,90.,ang, 270.);
513      ang /= kRaddeg;
514      zcoor = zpos+(zFLTC*0.5+zFLTB+zFLTA*0.5+db*2);
515      gMC->Gspos("FSTR",i, "FLTC", 0., ycoor, zcoor,idrotm[nrot], "ONLY");
516      if(fDebug>=1) {
517        printf("%s: %f,  St. %2i, Pl.5 ",ClassName(),ang*kRaddeg,i);
518        printf("y = %f,  z = %f, zpos = %f \n",ycoor,zcoor,zpos);
519      }
520      zpos = zpos - zSenStrip/TMath::Cos(ang);
521   }  while (zpos-stripWidth*TMath::Cos(ang)*0.5>-t);
522
523
524 ////////// Layers after strips /////////////////
525 // honeycomb (Polyethilene) Layer after (1.2cm)
526
527   Float_t overSpace = fOverSpc;//cm
528
529   par[0] = xFLT*0.5;
530   par[1] = 0.6;
531   par[2] = (zFLTA *0.5);
532   ycoor = -yFLT/2 + overSpace + par[1];
533   gMC->Gsvolu("FPEA", "BOX ", idtmed[503], par, 3); // Hony
534   gMC->Gspos ("FPEA", 0, "FLTA", 0., ycoor, 0., 0, "ONLY");
535   par[2] = (zFLTB *0.5);
536   gMC->Gsvolu("FPEB", "BOX ", idtmed[503], par, 3); // Hony
537   gMC->Gspos ("FPEB", 0, "FLTB", 0., ycoor, 0., 0, "ONLY");
538   par[2] = (zFLTC *0.5);
539   gMC->Gsvolu("FPEC", "BOX ", idtmed[503], par, 3); // Hony
540   gMC->Gspos ("FPEC", 0, "FLTC", 0., ycoor, 0., 0, "ONLY");
541
542 // Electronics (Cu) after
543   ycoor += par[1];
544   par[0] = xFLT*0.5;
545   par[1] = 1.43*0.05*0.5; // 5% of X0
546   par[2] = (zFLTA *0.5);
547   ycoor += par[1];
548   gMC->Gsvolu("FECA", "BOX ", idtmed[501], par, 3); // Cu
549   gMC->Gspos ("FECA", 0, "FLTA", 0., ycoor, 0., 0, "ONLY");
550   par[2] = (zFLTB *0.5);
551   gMC->Gsvolu("FECB", "BOX ", idtmed[501], par, 3); // Cu
552   gMC->Gspos ("FECB", 0, "FLTB", 0., ycoor, 0., 0, "ONLY");
553   par[2] = (zFLTC *0.5);
554   gMC->Gsvolu("FECC", "BOX ", idtmed[501], par, 3); // Cu
555   gMC->Gspos ("FECC", 0, "FLTC", 0., ycoor, 0., 0, "ONLY");
556
557 // cooling WAter after
558   ycoor += par[1];
559   par[0] = xFLT*0.5;
560   par[1] = 36.1*0.02*0.5; // 2% of X0
561   par[2] = (zFLTA *0.5);
562   ycoor += par[1];
563   gMC->Gsvolu("FWAA", "BOX ", idtmed[515], par, 3); // Water
564   gMC->Gspos ("FWAA", 0, "FLTA", 0., ycoor, 0., 0, "ONLY");
565   par[2] = (zFLTB *0.5);
566   gMC->Gsvolu("FWAB", "BOX ", idtmed[515], par, 3); // Water
567   gMC->Gspos ("FWAB", 0, "FLTB", 0., ycoor, 0., 0, "ONLY");
568   par[2] = (zFLTC *0.5);
569   gMC->Gsvolu("FWAC", "BOX ", idtmed[515], par, 3); // Water
570   gMC->Gspos ("FWAC", 0, "FLTC", 0., ycoor, 0., 0, "ONLY");
571
572 // frame of Air
573   ycoor += par[1];
574   par[0] = xFLT*0.5;
575   par[1] = (yFLT/2-ycoor-0.2)*0.5; // Aluminum layer considered (0.2 cm)
576   par[2] = (zFLTA *0.5);
577   ycoor += par[1];
578   gMC->Gsvolu("FAIA", "BOX ", idtmed[500], par, 3); // Air
579   gMC->Gspos ("FAIA", 0, "FLTA", 0., ycoor, 0., 0, "ONLY");
580   par[2] = (zFLTB *0.5);
581   gMC->Gsvolu("FAIB", "BOX ", idtmed[500], par, 3); // Air
582   gMC->Gspos ("FAIB", 0, "FLTB", 0., ycoor, 0., 0, "ONLY");
583   par[2] = (zFLTC *0.5);
584   gMC->Gsvolu("FAIC", "BOX ", idtmed[500], par, 3); // Air
585   gMC->Gspos ("FAIC", 0, "FLTC", 0., ycoor, 0., 0, "ONLY");
586 /* fp
587 //Back Plate honycomb (2cm)
588   par[0] = -1;
589   par[1] = 2 *0.5;
590   par[2] = -1;
591   ycoor = yFLT/2 - par[1];
592   gMC->Gsvolu("FBPA", "BOX ", idtmed[503], par, 3); // Hony
593   gMC->Gspos ("FBPA", 0, "FLTA", 0., ycoor, 0., 0, "ONLY");
594   gMC->Gsvolu("FBPB", "BOX ", idtmed[503], par, 3); // Hony
595   gMC->Gspos ("FBPB", 0, "FLTB", 0., ycoor, 0., 0, "ONLY");
596   gMC->Gsvolu("FBPC", "BOX ", idtmed[503], par, 3); // Hony
597   gMC->Gspos ("FBPC", 0, "FLTC", 0., ycoor, 0., 0, "ONLY");
598 fp */
599 }
600
601 //_____________________________________________________________________________
602 void AliTOFv0::DrawModule() const
603 {
604   //
605   // Draw a shaded view of the Time Of Flight version 0
606   //
607   // Set everything unseen
608   gMC->Gsatt("*", "seen", -1);
609   // 
610   // Set ALIC mother transparent
611   gMC->Gsatt("ALIC","SEEN",0);
612   //
613   // Set the volumes visible
614   gMC->Gsatt("ALIC","SEEN",0);
615
616   gMC->Gsatt("FTOA","SEEN",1);
617   gMC->Gsatt("FTOB","SEEN",1);
618   gMC->Gsatt("FTOC","SEEN",1);
619   gMC->Gsatt("FLTA","SEEN",1);
620   gMC->Gsatt("FLTB","SEEN",1);
621   gMC->Gsatt("FLTC","SEEN",1);
622   gMC->Gsatt("FPLA","SEEN",1);
623   gMC->Gsatt("FPLB","SEEN",1);
624   gMC->Gsatt("FPLC","SEEN",1);
625   gMC->Gsatt("FSTR","SEEN",1);
626   gMC->Gsatt("FPEA","SEEN",1);
627   gMC->Gsatt("FPEB","SEEN",1);
628   gMC->Gsatt("FPEC","SEEN",1);
629   
630   gMC->Gsatt("FLZ1","SEEN",0);
631   gMC->Gsatt("FLZ2","SEEN",0);
632   gMC->Gsatt("FLZ3","SEEN",0);
633   gMC->Gsatt("FLX1","SEEN",0);
634   gMC->Gsatt("FLX2","SEEN",0);
635   gMC->Gsatt("FLX3","SEEN",0);
636   gMC->Gsatt("FPAD","SEEN",0);
637
638   gMC->Gdopt("hide", "on");
639   gMC->Gdopt("shad", "on");
640   gMC->Gsatt("*", "fill", 7);
641   gMC->SetClipBox(".");
642   gMC->SetClipBox("*", 0, 1000, -1000, 1000, -1000, 1000);
643   gMC->DefaultRange();
644   gMC->Gdraw("alic", 40, 30, 0, 12, 9.5, .02, .02);
645   gMC->Gdhead(1111, "Time Of Flight");
646   gMC->Gdman(18, 4, "MAN");
647   gMC->Gdopt("hide","off");
648 }
649 //_____________________________________________________________________________
650 void AliTOFv0::DrawDetectorModules()
651 {
652 //
653 // Draw a shaded view of the TOF detector version 0
654 //
655  
656 //Set ALIC mother transparent
657  gMC->Gsatt("ALIC","SEEN",0);
658
659 //
660 //Set volumes visible
661 // 
662 //=====> Level 1
663   // Level 1 for TOF volumes
664   gMC->Gsatt("B077","seen",0);
665  
666  
667 //==========> Level 2
668   // Level 2
669   gMC->Gsatt("B076","seen",-1); // all B076 sub-levels skipped -
670   gMC->Gsatt("B071","seen",0);
671   gMC->Gsatt("B074","seen",0);
672   gMC->Gsatt("B075","seen",0);
673   gMC->Gsatt("B080","seen",0); // B080 does not has sub-level                
674
675
676   // Level 2 of B071
677   gMC->Gsatt("B063","seen",-1); // all B063 sub-levels skipped   -
678   gMC->Gsatt("B065","seen",-1); // all B065 sub-levels skipped   -
679   gMC->Gsatt("B067","seen",-1); // all B067 sub-levels skipped   -
680   gMC->Gsatt("B069","seen",-1); // all B069 sub-levels skipped   -
681   gMC->Gsatt("B056","seen",0);  // B056 does not has sub-levels  -
682   gMC->Gsatt("B059","seen",-1); // all B059 sub-levels skipped   -
683   gMC->Gsatt("B072","seen",-1); // all B072 sub-levels skipped   -
684   gMC->Gsatt("BTR1","seen",0);  // BTR1 do not have sub-levels   -
685   gMC->Gsatt("BTO1","seen",0);
686
687  
688   // Level 2 of B074
689   gMC->Gsatt("BTR2","seen",0); // BTR2 does not has sub-levels -
690   gMC->Gsatt("BTO2","seen",0);
691
692   // Level 2 of B075
693   gMC->Gsatt("BTR3","seen",0); // BTR3 do not have sub-levels -
694   gMC->Gsatt("BTO3","seen",0);
695
696 // ==================> Level 3
697   // Level 3 of B071 / Level 2 of BTO1
698   gMC->Gsatt("FTOC","seen",-2);
699   gMC->Gsatt("FTOB","seen",-2);
700   gMC->Gsatt("FTOA","seen",-2);
701  
702   // Level 3 of B074 / Level 2 of BTO2
703   // -> cfr previous settings
704  
705   // Level 3 of B075 / Level 2 of BTO3
706   // -> cfr previous settings
707
708   gMC->Gdopt("hide","on");
709   gMC->Gdopt("shad","on");
710   gMC->Gsatt("*", "fill", 5);
711   gMC->SetClipBox(".");
712   gMC->SetClipBox("*", 0, 1000, 0, 1000, 0, 1000);
713   gMC->DefaultRange();
714   gMC->Gdraw("alic", 45, 40, 0, 10, 10, .015, .015);
715   gMC->Gdhead(1111,"TOF detector V1");
716   gMC->Gdman(18, 4, "MAN");
717   gMC->Gdopt("hide","off");
718 }                                 
719
720 //_____________________________________________________________________________
721 void AliTOFv0::DrawDetectorStrips()
722 {
723 //
724 // Draw a shaded view of the TOF strips for version 0
725 //
726  
727 //Set ALIC mother transparent
728  gMC->Gsatt("ALIC","SEEN",0);
729
730 //
731 //Set volumes visible 
732 //=====> Level 1
733   // Level 1 for TOF volumes
734   gMC->Gsatt("B077","seen",0);
735   
736 //==========> Level 2
737   // Level 2
738   gMC->Gsatt("B076","seen",-1); // all B076 sub-levels skipped -
739   gMC->Gsatt("B071","seen",0);
740   gMC->Gsatt("B074","seen",0);
741   gMC->Gsatt("B075","seen",0);
742   gMC->Gsatt("B080","seen",0); // B080 does not has sub-level
743
744   // Level 2 of B071
745   gMC->Gsatt("B063","seen",-1); // all B063 sub-levels skipped   -
746   gMC->Gsatt("B065","seen",-1); // all B065 sub-levels skipped   -
747   gMC->Gsatt("B067","seen",-1); // all B067 sub-levels skipped   -
748   gMC->Gsatt("B069","seen",-1); // all B069 sub-levels skipped   -
749   gMC->Gsatt("B056","seen",0);  // B056 does not has sub-levels  -
750   gMC->Gsatt("B059","seen",-1); // all B059 sub-levels skipped   -
751   gMC->Gsatt("B072","seen",-1); // all B072 sub-levels skipped   -
752   gMC->Gsatt("BTR1","seen",0);  // BTR1 do not have sub-levels   -
753   gMC->Gsatt("BTO1","seen",0);
754
755 // ==================> Level 3
756   // Level 3 of B071 / Level 2 of BTO1
757   gMC->Gsatt("FTOC","seen",0);
758   gMC->Gsatt("FTOB","seen",0);
759   gMC->Gsatt("FTOA","seen",0);
760  
761   // Level 3 of B074 / Level 2 of BTO2
762   // -> cfr previous settings
763  
764   // Level 3 of B075 / Level 2 of BTO3
765   // -> cfr previous settings
766
767
768 // ==========================> Level 4
769   // Level 4 of B071 / Level 3 of BTO1 / Level 2 of FTOC
770   gMC->Gsatt("FLTC","seen",0);
771   // Level 4 of B071 / Level 3 of BTO1 / Level 2 of FTOB
772   gMC->Gsatt("FLTB","seen",0);
773   // Level 4 of B071 / Level 3 of BTO1 / Level 2 of FTOA
774   gMC->Gsatt("FLTA","seen",0);
775  
776   // Level 4 of B074 / Level 3 of BTO2 / Level 2 of FTOC
777   // -> cfr previous settings
778   // Level 4 of B074 / Level 3 of BTO2 / Level 2 of FTOB
779   // -> cfr previous settings
780  
781   // Level 4 of B075 / Level 3 of BTO3 / Level 2 of FTOC
782   // -> cfr previous settings
783
784 //======================================> Level 5
785   // Level 5 of B071 / Level 4 of BTO1 / Level 3 of FTOC / Level 2 of FLTC
786   gMC->Gsatt("FALC","seen",0); // no children for FALC
787   gMC->Gsatt("FSTR","seen",-2);
788   gMC->Gsatt("FPEC","seen",0); // no children for FPEC
789   gMC->Gsatt("FECC","seen",0); // no children for FECC
790   gMC->Gsatt("FWAC","seen",0); // no children for FWAC
791   gMC->Gsatt("FAIC","seen",0); // no children for FAIC
792
793   // Level 5 of B071 / Level 4 of BTO1 / Level 3 of FTOB / Level 2 of FLTB
794   gMC->Gsatt("FALB","seen",0); // no children for FALB
795 //-->  gMC->Gsatt("FSTR","seen",-2);
796
797
798   // -> cfr previous settings
799   gMC->Gsatt("FPEB","seen",0); // no children for FPEB
800   gMC->Gsatt("FECB","seen",0); // no children for FECB
801   gMC->Gsatt("FWAB","seen",0); // no children for FWAB
802   gMC->Gsatt("FAIB","seen",0); // no children for FAIB
803  
804   // Level 5 of B071 / Level 4 of BTO1 / Level 3 of FTOA / Level 2 of FLTA
805   gMC->Gsatt("FALA","seen",0); // no children for FALB
806 //-->  gMC->Gsatt("FSTR","seen",-2);
807   // -> cfr previous settings
808   gMC->Gsatt("FPEA","seen",0); // no children for FPEA
809   gMC->Gsatt("FECA","seen",0); // no children for FECA
810   gMC->Gsatt("FWAA","seen",0); // no children for FWAA
811   gMC->Gsatt("FAIA","seen",0); // no children for FAIA
812
813   // Level 2 of B074
814   gMC->Gsatt("BTR2","seen",0); // BTR2 does not has sub-levels -
815   gMC->Gsatt("BTO2","seen",0);
816
817   // Level 2 of B075
818   gMC->Gsatt("BTR3","seen",0); // BTR3 do not have sub-levels -
819   gMC->Gsatt("BTO3","seen",0);
820
821 // for others Level 5, cfr. previous settings
822
823   gMC->Gdopt("hide","on");
824   gMC->Gdopt("shad","on");
825   gMC->Gsatt("*", "fill", 5);
826   gMC->SetClipBox(".");
827   gMC->SetClipBox("*", 0, 1000, 0, 1000, 0, 1000);
828   gMC->DefaultRange();
829   gMC->Gdraw("alic", 45, 40, 0, 10, 10, .015, .015);
830   gMC->Gdhead(1111,"TOF Strips V1");
831   gMC->Gdman(18, 4, "MAN");
832   gMC->Gdopt("hide","off");
833 }
834
835 //_____________________________________________________________________________
836 void AliTOFv0::CreateMaterials()
837 {
838   //
839   // Define materials for the Time Of Flight
840   //
841   AliTOF::CreateMaterials();
842 }
843  
844 //_____________________________________________________________________________
845 void AliTOFv0::Init()
846 {
847   //
848   // Initialise the detector after the geometry has been defined
849   //
850   printf("**************************************"
851          "  TOF  "
852          "**************************************\n");
853   printf("\n   Version 0 of TOF initialing, "
854               "symmetric TOF - Full Coverage version\n");
855
856   AliTOF::Init();
857
858   fIdFTOA = gMC->VolId("FTOA");
859   fIdFTOB = gMC->VolId("FTOB");
860   fIdFTOC = gMC->VolId("FTOC");
861   fIdFLTA = gMC->VolId("FLTA");
862   fIdFLTB = gMC->VolId("FLTB");
863   fIdFLTC = gMC->VolId("FLTC");
864
865   if(fDebug) {
866     printf("%s: **************************************"
867            "  TOF  "
868            "**************************************\n",ClassName());
869   }
870 }
871  
872 //_____________________________________________________________________________
873 void AliTOFv0::StepManager()
874 {
875   //
876   // Procedure called at each step in the Time Of Flight
877   //
878   TLorentzVector mom, pos;
879   Float_t xm[3],pm[3],xpad[3],ppad[3];
880   Float_t hits[13],phi,phid,z;
881   Int_t   vol[5];
882   Int_t   sector, plate, padx, padz, strip;
883   Int_t   copy, padzid, padxid, stripid, i;
884   Int_t   *idtmed = fIdtmed->GetArray()-499;
885   Float_t incidenceAngle;
886   
887   if(gMC->CurrentMedium()==idtmed[513] && 
888      gMC->IsTrackEntering() && gMC->TrackCharge()
889      && gMC->CurrentVolID(copy)==fIdSens) 
890   {    
891     // getting information about hit volumes
892     
893     padzid=gMC->CurrentVolOffID(2,copy);
894     padz=copy;  
895     
896     padxid=gMC->CurrentVolOffID(1,copy);
897     padx=copy;  
898     
899     stripid=gMC->CurrentVolOffID(4,copy);
900     strip=copy;  
901
902     gMC->TrackPosition(pos);
903     gMC->TrackMomentum(mom);
904
905 //    Double_t NormPos=1./pos.Rho();
906     Double_t normMom=1./mom.Rho();
907
908 //  getting the cohordinates in pad ref system
909     xm[0] = (Float_t)pos.X();
910     xm[1] = (Float_t)pos.Y();
911     xm[2] = (Float_t)pos.Z();
912
913     pm[0] = (Float_t)mom.X()*normMom;
914     pm[1] = (Float_t)mom.Y()*normMom;
915     pm[2] = (Float_t)mom.Z()*normMom;
916  
917     gMC->Gmtod(xm,xpad,1);
918     gMC->Gmtod(pm,ppad,2);
919
920     incidenceAngle = TMath::ACos(ppad[1])*kRaddeg;
921
922     z = pos[2];
923
924     plate = 0;   
925     if (TMath::Abs(z) <=  fZlenA*0.5)  plate = 2; //3; // AdC
926     if (z < (fZlenA*0.5+fZlenB) && 
927         z >  fZlenA*0.5)               plate = 1; //4; // AdC
928     if (z >-(fZlenA*0.5+fZlenB) &&
929         z < -fZlenA*0.5)               plate = 3; //2; // AdC
930     if (z > (fZlenA*0.5+fZlenB))       plate = 0; //5; // AdC
931     if (z <-(fZlenA*0.5+fZlenB))       plate = 4; //1; // AdC
932
933     if (plate==0) strip=AliTOFConstants::fgkNStripC-strip; // AdC
934     else if (plate==1) strip=AliTOFConstants::fgkNStripB-strip; // AdC
935     else strip--; // AdC
936
937     if (z<=0.) padx=AliTOFConstants::fgkNpadX-padx; // AdC
938     else padx--; // AdC
939
940     if (plate==3 || plate==4) padz=AliTOFConstants::fgkNpadZ-padz; // AdC
941     else padz--; // AdC
942
943     phi = pos.Phi();
944     if (phi>=0.) phid = phi*kRaddeg; //+180.; // AdC
945     else phid = phi*kRaddeg + 360.; // AdC
946     sector = Int_t (phid/20.);
947     //sector++;  // AdC
948
949     for(i=0;i<3;++i) {
950       hits[i]   = pos[i];
951       hits[i+3] = pm[i];
952     }
953
954     hits[6] = mom.Rho();
955     hits[7] = pos[3];
956     hits[8] = xpad[0];
957     hits[9] = xpad[1];
958     hits[10]= xpad[2];
959     hits[11]= incidenceAngle;
960     hits[12]= gMC->Edep();
961     
962     vol[0]= sector;
963     vol[1]= plate;
964     vol[2]= strip;
965     vol[3]= padx;
966     vol[4]= padz;
967
968     AddHit(gAlice->GetMCApp()->GetCurrentTrackNumber(),vol, hits);
969   }
970 }
971
972
973
974
975
976