MUON/AliMUONFactory.cxx

   1 /**************************************************************************
   2  * Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
   3  *                                                                        *
   4  * Author: The ALICE Off-line Project.                                    *
   5  * Contributors are mentioned in the code where appropriate.              *
   6  *                                                                        *
   7  * Permission to use, copy, modify and distribute this software and its   *
   8  * documentation strictly for non-commercial purposes is hereby granted   *
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  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  **************************************************************************/
  15
  16 ////////////////////////////////////////////////////////////
  17 //  Factory for muon chambers, segmentations and response //
  18 ////////////////////////////////////////////////////////////
  19
  20 /*
  21 $Log$
  22 Revision 1.1  2001/04/06 11:24:43  morsch
  23 Dependency on implementations of AliSegmentation and AliMUONResponse moved to AliMUONFactory class.
  24 Static method Build() builds the MUON system out of chambers, segmentation and response.
  25
  26 */
  27 #include "AliMUONFactory.h"
  28 #include "AliMUON.h"
  29 #include "AliMUONChamber.h"
  30 #include "AliMUONResponseV0.h"
  31 #include "AliMUONResponseTrigger.h"
  32 #include "AliMUONSegmentationV0.h"
  33 #include "AliMUONSegmentationV01.h"
  34 #include "AliMUONSegmentationV02.h"
  35 #include "AliMUONSegmentationV04.h"
  36 #include "AliMUONSegmentationV05.h"
  37 #include "AliMUONSegmentationSlat.h"
  38 #include "AliMUONSegmentationSlatN.h"
  39 #include "AliMUONSegmentationTrigger.h"
  40 #include "AliMUONSegmentationTriggerX.h"
  41 #include "AliMUONSegmentationTriggerY.h"
  42
  43 ClassImp(AliMUONFactory)
  44
  45
  46 void AliMUONFactory::Build(AliMUON* where, const char* what)
  47 {
  48 //
  49 // Construct MUON from chambers, segmentation and responses
  50 //
  51     char tmp[20];
  52     AliMUON* pMUON = where;
  53     strcpy(tmp, what);
  54
  55     if (strcmp(tmp, "default")==0) {
  56       if(pMUON->GetDebug()) {
  57
  58         printf("\nAliMUONFactory: --------AliMUONFactory------------------------------");
  59         printf("\nAliMUONFactory:  Non default version of MUON selected               ");
  60         printf("\nAliMUONFactory:  You have to construct yourself the MUON elements !!");
  61         printf("\nAliMUONFactory: ----------------------------------------------------");
  62       }
  63         pMUON->SetIshunt(0);
  64         pMUON->SetMaxStepGas(0.1);
  65         pMUON->SetMaxStepAlu(0.1);
  66 //
  67 // Version 0
  68 //
  69 // First define the number of planes that are segmented (1 or 2) by a call
  70 // to SetNsec.
  71 // Then chose for each chamber (chamber plane) the segmentation
  72 // and response model.
  73 // They should be equal for the two chambers of each station. In a future
  74 // version this will be enforced.
  75 //
  76 //
  77         Int_t chamber;
  78         // Default response: 5 mm of gas
  79         AliMUONResponseV0* response0 = new AliMUONResponseV0;
  80         response0->SetSqrtKx3AndDeriveKx2Kx4(0.7131); // sqrt(0.5085)
  81         response0->SetSqrtKy3AndDeriveKy2Ky4(0.7642); // sqrt(0.5840)
  82         response0->SetPitch(0.25); // anode-cathode distance
  83         response0->SetSigmaIntegration(10.);
  84         response0->SetChargeSlope(50);
  85         response0->SetChargeSpread(0.18, 0.18);
  86         response0->SetMaxAdc(4096);
  87         response0->SetZeroSuppression(6);
  88
  89         // Response for 4 mm of gas (station 1)
  90         // automatic consistency with width of sensitive medium in CreateGeometry ????
  91         AliMUONResponseV0* responseSt1 = new AliMUONResponseV0;
  92         // Mathieson parameters from L.Kharmandarian's thesis, page 190
  93         responseSt1->SetSqrtKx3AndDeriveKx2Kx4(0.7000); // sqrt(0.4900)
  94         responseSt1->SetSqrtKy3AndDeriveKy2Ky4(0.7550); // sqrt(0.5700)
  95         responseSt1->SetPitch(0.20); // anode-cathode distance
  96         responseSt1->SetSigmaIntegration(10.);
  97         // ChargeSlope larger to compensate for the smaller anode-cathode distance
  98         // and keep the same most probable ADC channel for mip's
  99         responseSt1->SetChargeSlope(62.5);
 100         // assumed proportionality to anode-cathode distance for ChargeSpread
 101         responseSt1->SetChargeSpread(0.144, 0.144);
 102         responseSt1->SetMaxAdc(4096);
 103         responseSt1->SetZeroSuppression(6);
 104
 105 //--------------------------------------------------------
 106 // Configuration for Chamber TC1/2  (Station 1) ----------
 107 //^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 108         Float_t rseg1[4]={17.5, 55.2, 71.3, 95.5};
 109         Int_t   nseg1[4]={4, 4, 2, 1};
 110 //
 111         chamber=1;
 112 //      ^^^^^^^^^
 113         pMUON->SetNsec(chamber-1,2);
 114 //
 115         AliMUONSegmentationV01 *seg11=new AliMUONSegmentationV01(4);
 116
 117         seg11->SetSegRadii(rseg1);
 118         seg11->SetPadSize(2.4, 0.4); // smaller pad size
 119         seg11->SetDAnod(0.20); // smaller distance between anode wires
 120         seg11->SetPadDivision(nseg1);
 121
 122         pMUON->SetSegmentationModel(chamber-1, 1, seg11);
 123
 124         AliMUONSegmentationV02 *seg12=new AliMUONSegmentationV02(4);
 125         seg12->SetSegRadii(rseg1);
 126         seg12->SetPadSize(0.6, 1.6); // smaller pad size
 127         seg12->SetDAnod(0.20); // smaller distance between anode wires
 128         seg12->SetPadDivision(nseg1);
 129
 130         pMUON->SetSegmentationModel(chamber-1, 2, seg12);
 131
 132         pMUON->SetResponseModel(chamber-1, responseSt1); // special response
 133         pMUON->Chamber(chamber-1).SetChargeCorrel(0.11); // 11% charge spread
 134
 135         chamber=2;
 136 //      ^^^^^^^^^
 137 //
 138         pMUON->SetNsec(chamber-1,2);
 139 //
 140         AliMUONSegmentationV01 *seg21=new AliMUONSegmentationV01(4);
 141         seg21->SetSegRadii(rseg1);
 142         seg21->SetPadSize(2.4, 0.4); // smaller pad size
 143         seg21->SetDAnod(0.20); // smaller distance between anode wires
 144         seg21->SetPadDivision(nseg1);
 145         pMUON->SetSegmentationModel(chamber-1, 1, seg21);
 146 //
 147         AliMUONSegmentationV02 *seg22=new AliMUONSegmentationV02(4);
 148         seg22->SetSegRadii(rseg1);
 149         seg22->SetPadSize(0.6, 1.6); // smaller pad size
 150         seg22->SetDAnod(0.20); // smaller distance between anode wires
 151         seg22->SetPadDivision(nseg1);
 152         pMUON->SetSegmentationModel(chamber-1, 2, seg22);
 153
 154         pMUON->SetResponseModel(chamber-1, responseSt1); // special response
 155         pMUON->Chamber(chamber-1).SetChargeCorrel(0.11); // 11% charge spread
 156
 157 //
 158 //--------------------------------------------------------
 159 // Configuration for Chamber TC3/4 (Station 2) -----------
 160 ///^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 161 // Float_t rseg2[4]={23.5, 87.7, 122.4, 122.5};
 162         Float_t rseg2[4]={23.5, 47.1, 87.7, 122.5};
 163         Int_t   nseg2[4]={4, 4, 2, 1};
 164 //
 165         chamber=3;
 166 //      ^^^^^^^^^
 167         pMUON->SetNsec(chamber-1,2);
 168 //
 169         AliMUONSegmentationV01 *seg31=new AliMUONSegmentationV01(4);
 170         seg31->SetSegRadii(rseg2);
 171         seg31->SetPadSize(3.0, 0.5);
 172         seg31->SetDAnod(3.0/3./4);
 173         seg31->SetPadDivision(nseg2);
 174         pMUON->SetSegmentationModel(chamber-1, 1, seg31);
 175 //
 176         AliMUONSegmentationV02 *seg32=new AliMUONSegmentationV02(4);
 177         seg32->SetSegRadii(rseg2);
 178         seg32->SetPadSize(0.75, 2.0);
 179         seg32->SetPadDivision(nseg2);
 180         seg32->SetDAnod(3.0/3./4);
 181
 182         pMUON->SetSegmentationModel(chamber-1, 2, seg32);
 183
 184         pMUON->SetResponseModel(chamber-1, response0);
 185         pMUON->Chamber(chamber-1).SetChargeCorrel(0.11); // 11% charge spread
 186
 187         chamber=4;
 188 //      ^^^^^^^^^
 189 //
 190         pMUON->SetNsec(chamber-1,2);
 191 //
 192         AliMUONSegmentationV01 *seg41=new AliMUONSegmentationV01(4);
 193         seg41->SetSegRadii(rseg2);
 194         seg41->SetPadSize(3.0, 0.5);
 195         seg41->SetDAnod(3.0/3./4);
 196         seg41->SetPadDivision(nseg2);
 197         pMUON->SetSegmentationModel(chamber-1, 1, seg41);
 198 //
 199         AliMUONSegmentationV02 *seg42=new AliMUONSegmentationV02(4);
 200         seg42->SetSegRadii(rseg2);
 201         seg42->SetPadSize(0.75, 2.0);
 202         seg42->SetPadDivision(nseg2);
 203         seg42->SetDAnod(3.0/3./4);
 204
 205         pMUON->SetSegmentationModel(chamber-1, 2, seg42);
 206
 207         pMUON->SetResponseModel(chamber-1, response0);
 208         pMUON->Chamber(chamber-1).SetChargeCorrel(0.11); // 11% charge spread
 209
 210
 211 //--------------------------------------------------------
 212 // Configuration for Chamber TC5/6  (Station 3) ----------
 213 //^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 214         Int_t   nseg3[4]={4, 4, 2, 1};
 215         Int_t   npcb5[36] = {0,0,2,0,
 216                              0,0,3,0,
 217                              0,1,3,0,
 218                              0,2,2,0,
 219                              0,1,2,0,
 220                              0,2,2,0,
 221                              0,1,3,0,
 222                              0,0,3,0,
 223                              0,0,2,0};
 224
 225         Float_t shift = 1.5/2.;
 226         Float_t xpos5[9]    = {2., 2., 2., 2.,33., 2., 2., 2., 2.};
 227         Float_t ypos5       = -(20.+4.*(40.-2.*shift));
 228
 229         chamber=5;
 230         pMUON->SetNsec(chamber-1,2);
 231         AliMUONSegmentationSlat *seg51=new AliMUONSegmentationSlat(4);
 232         seg51->SetNSlats(9);
 233         seg51->SetShift(shift);
 234         seg51->SetNPCBperSector(npcb5);
 235         seg51->SetSlatXPositions(xpos5);
 236         seg51->SetSlatYPosition(ypos5);
 237         seg51->SetPadSize(10.,0.5);
 238         seg51->SetDAnod(0.25);
 239         seg51->SetPadDivision(nseg3);
 240         pMUON->SetSegmentationModel(chamber-1, 1, seg51);
 241
 242         AliMUONSegmentationSlatN *seg52=new AliMUONSegmentationSlatN(4);
 243         seg52->SetNSlats(9);
 244         seg52->SetShift(shift);
 245         seg52->SetNPCBperSector(npcb5);
 246         seg52->SetSlatXPositions(xpos5);
 247         seg52->SetSlatYPosition(ypos5);
 248         seg52->SetPadSize(1., 10.); // DeltaX(non bending) = 2 * DeltaY(bending)
 249         seg52->SetDAnod(0.25);
 250         seg52->SetPadDivision(nseg3);
 251         pMUON->SetSegmentationModel(chamber-1, 2, seg52);
 252         pMUON->SetResponseModel(chamber-1, response0);
 253         pMUON->Chamber(chamber-1).SetChargeCorrel(0.11); // 11% charge spread
 254
 255         chamber=6;
 256         pMUON->SetNsec(chamber-1,2);
 257         AliMUONSegmentationSlat *seg61=new AliMUONSegmentationSlat(4);
 258         seg61->SetNSlats(9);
 259         seg61->SetShift(shift);
 260         seg61->SetNPCBperSector(npcb5);
 261         seg61->SetSlatXPositions(xpos5);
 262         seg61->SetSlatYPosition(ypos5);
 263         seg61->SetPadSize(10.,0.5);
 264         seg61->SetDAnod(0.25);
 265         seg61->SetPadDivision(nseg3);
 266         pMUON->SetSegmentationModel(chamber-1, 1, seg61);
 267
 268         AliMUONSegmentationSlatN *seg62=new AliMUONSegmentationSlatN(4);
 269         seg62->SetNSlats(9);
 270         seg62->SetShift(shift);
 271         seg62->SetNPCBperSector(npcb5);
 272         seg62->SetSlatXPositions(xpos5);
 273         seg62->SetSlatYPosition(ypos5);
 274         seg62->SetPadSize(1., 10.); // DeltaX(non bending) = 2 * DeltaY(bending)
 275         seg62->SetDAnod(0.25);
 276         seg62->SetPadDivision(nseg3);
 277         pMUON->SetSegmentationModel(chamber-1, 2, seg62);
 278         pMUON->SetResponseModel(chamber-1, response0);
 279         pMUON->Chamber(chamber-1).SetChargeCorrel(0.11); // 11% charge spread
 280
 281 //--------------------------------------------------------
 282 // Configuration for Chamber TC7/8  (Station 4) ----------
 283 //^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 284
 285         Int_t   nseg4[4]={4, 4, 2, 1};
 286
 287         chamber=7;
 288 //      ^^^^^^^^^
 289
 290         pMUON->SetNsec(chamber-1,2);
 291 //
 292         AliMUONSegmentationSlat *seg71=new AliMUONSegmentationSlat(4);
 293         Int_t npcb7[44] = {0,0,0,3,
 294                            0,0,2,2,
 295                            0,0,3,2,
 296                            0,2,2,1,
 297                            0,2,2,1,
 298                            0,1,2,1,
 299                            0,2,2,1,
 300                            0,2,2,1,
 301                            0,0,3,2,
 302                            0,0,2,2,
 303                            0,0,0,3};
 304         Float_t xpos7[11]   = {2., 2., 2., 2., 2., 40.5, 2., 2., 2., 2., 2.};
 305         Float_t ypos7       = -(20.+5.*(40.-2.*shift));
 306
 307         seg71->SetNSlats(11);
 308         seg71->SetShift(shift);
 309         seg71->SetNPCBperSector(npcb7);
 310         seg71->SetSlatXPositions(xpos7);
 311         seg71->SetSlatYPosition(ypos7);
 312
 313         seg71->SetPadSize(10.,0.5);
 314         seg71->SetDAnod(0.25);
 315         seg71->SetPadDivision(nseg4);
 316         pMUON->SetSegmentationModel(chamber-1, 1, seg71);
 317
 318         AliMUONSegmentationSlatN *seg72=new AliMUONSegmentationSlatN(4);
 319
 320         pMUON->SetSegmentationModel(chamber-1, 2, seg72);
 321         seg72->SetNSlats(11);
 322         seg72->SetShift(shift);
 323         seg72->SetNPCBperSector(npcb7);
 324         seg72->SetSlatXPositions(xpos7);
 325         seg72->SetSlatYPosition(ypos7);
 326         seg72->SetPadSize(1., 10.); // DeltaX(non bending) = 2 * DeltaY(bending)
 327         seg72->SetDAnod(0.25);
 328         seg72->SetPadDivision(nseg4);
 329
 330         pMUON->SetResponseModel(chamber-1, response0);
 331         pMUON->Chamber(chamber-1).SetChargeCorrel(0.11); // 11% charge spread
 332
 333         chamber=8;
 334 //      ^^^^^^^^^
 335         pMUON->SetNsec(chamber-1,2);
 336 //
 337         AliMUONSegmentationSlat *seg81=new AliMUONSegmentationSlat(4);
 338
 339         seg81->SetNSlats(11);
 340         seg81->SetShift(shift);
 341         seg81->SetNPCBperSector(npcb7);
 342         seg81->SetSlatXPositions(xpos7);
 343         seg81->SetSlatYPosition(ypos7);
 344         seg81->SetPadSize(10.,0.5);
 345         seg81->SetDAnod(0.25);
 346         seg81->SetPadDivision(nseg4);
 347         pMUON->SetSegmentationModel(chamber-1, 1, seg81);
 348
 349         AliMUONSegmentationSlat *seg82=new AliMUONSegmentationSlatN(4);
 350
 351         pMUON->SetSegmentationModel(chamber-1, 2, seg82);
 352         seg82->SetNSlats(11);
 353         seg82->SetShift(shift);
 354         seg82->SetNPCBperSector(npcb7);
 355         seg82->SetSlatXPositions(xpos7);
 356         seg82->SetSlatYPosition(ypos7);
 357         seg82->SetPadSize(1., 10.); // DeltaX(non bending) = 2 * DeltaY(bending)
 358         seg82->SetDAnod(0.25);
 359         seg82->SetPadDivision(nseg4);
 360
 361         pMUON->SetResponseModel(chamber-1, response0);
 362         pMUON->Chamber(chamber-1).SetChargeCorrel(0.11); // 11% charge spread
 363
 364
 365 //--------------------------------------------------------
 366 // Configuration for Chamber TC9/10  (Station 5) ---------
 367 //^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 368         chamber=9;
 369 //      ^^^^^^^^^
 370
 371         pMUON->SetNsec(chamber-1,2);
 372 //
 373         AliMUONSegmentationSlat *seg91=new AliMUONSegmentationSlat(4);
 374         Int_t   npcb9[52] = {0,0,0,3,
 375                              0,0,0,4,
 376                              0,0,2,3,
 377                              0,0,3,3,
 378                              0,2,2,2,
 379                              0,2,2,2,
 380                              0,1,2,2,
 381                              0,2,2,2,
 382                              0,2,2,2,
 383                              0,0,3,3,
 384                              0,0,2,3,
 385                              0,0,0,4,
 386                              0,0,0,3};
 387
 388         Float_t xpos9[13]   = {2., 2., 2., 2., 2., 2., 40.5, 2., 2., 2., 2., 2., 2.};
 389         Float_t ypos9       = -(20.+6.*(40.-2.*shift));
 390
 391         seg91->SetNSlats(13);
 392         seg91->SetShift(shift);
 393         seg91->SetNPCBperSector(npcb9);
 394         seg91->SetSlatXPositions(xpos9);
 395         seg91->SetSlatYPosition(ypos9);
 396         seg91->SetPadSize(10.,0.5);
 397         seg91->SetDAnod(0.25);
 398         seg91->SetPadDivision(nseg4);
 399         pMUON->SetSegmentationModel(chamber-1, 1, seg91);
 400
 401         AliMUONSegmentationSlatN *seg92=new AliMUONSegmentationSlatN(4);
 402
 403         pMUON->SetSegmentationModel(chamber-1, 2, seg92);
 404         seg92->SetNSlats(13);
 405         seg92->SetShift(shift);
 406         seg92->SetNPCBperSector(npcb9);
 407         seg92->SetSlatXPositions(xpos9);
 408         seg92->SetSlatYPosition(ypos9);
 409         seg92->SetPadSize(1., 10.); // DeltaX(non bending) = 2 * DeltaY(bending)
 410         seg92->SetDAnod(0.25);
 411         seg92->SetPadDivision(nseg4);
 412
 413         pMUON->SetResponseModel(chamber-1, response0);
 414         pMUON->Chamber(chamber-1).SetChargeCorrel(0.11); // 11% charge spread
 415
 416         chamber=10;
 417 //      ^^^^^^^^^
 418         pMUON->SetNsec(chamber-1,2);
 419 //
 420         AliMUONSegmentationSlat *seg101=new AliMUONSegmentationSlat(4);
 421
 422         seg101->SetNSlats(13);
 423         seg101->SetShift(shift);
 424         seg101->SetNPCBperSector(npcb9);
 425         seg101->SetSlatXPositions(xpos9);
 426         seg101->SetSlatYPosition(ypos9);
 427         seg101->SetPadSize(10.,0.5);
 428         seg101->SetDAnod(0.25);
 429         seg101->SetPadDivision(nseg4);
 430         pMUON->SetSegmentationModel(chamber-1, 1, seg101);
 431
 432         AliMUONSegmentationSlatN *seg102=new AliMUONSegmentationSlatN(4);
 433
 434         pMUON->SetSegmentationModel(chamber-1, 2, seg102);
 435         seg102->SetNSlats(13);
 436         seg102->SetShift(shift);
 437         seg102->SetNPCBperSector(npcb9);
 438         seg102->SetSlatXPositions(xpos9);
 439         seg102->SetSlatYPosition(ypos9);
 440         seg102->SetPadSize(1., 10.); // DeltaX(non bending) = 2 * DeltaY(bending)
 441         seg102->SetDAnod(0.25);
 442         seg102->SetPadDivision(nseg4);
 443
 444         pMUON->SetResponseModel(chamber-1, response0);
 445         pMUON->Chamber(chamber-1).SetChargeCorrel(0.11); // 11% charge spread
 446
 447 //--------------------------------------------------------
 448 // Configuration for Trigger Stations --------------------
 449 //^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 450 // Cluster-size off
 451         AliMUONResponseTrigger* responseTrigger0 =  new AliMUONResponseTrigger;
 452 // Cluster-size on
 453 // AliMUONResponseTriggerV1* responseTrigger0 =  new AliMUONResponseTriggerV1;
 454
 455         chamber=11;
 456         pMUON->SetNsec(chamber-1,2);
 457         AliMUONSegmentationTriggerX *seg111=new AliMUONSegmentationTriggerX;
 458         pMUON->SetSegmentationModel(chamber-1, 1, seg111);
 459         AliMUONSegmentationTriggerY *seg112=new AliMUONSegmentationTriggerY;
 460         pMUON->SetSegmentationModel(chamber-1, 2, seg112);
 461
 462         pMUON->SetResponseModel(chamber-1, responseTrigger0);
 463         pMUON->Chamber(chamber-1).SetChargeCorrel(0); // same charge on cathodes
 464
 465
 466         chamber=12;
 467         pMUON->SetNsec(chamber-1,2);
 468         AliMUONSegmentationTriggerX *seg121=new AliMUONSegmentationTriggerX;
 469         pMUON->SetSegmentationModel(chamber-1, 1, seg121);
 470         AliMUONSegmentationTriggerY *seg122=new AliMUONSegmentationTriggerY;
 471         pMUON->SetSegmentationModel(chamber-1, 2, seg122);
 472
 473         pMUON->SetResponseModel(chamber-1, responseTrigger0);
 474         pMUON->Chamber(chamber-1).SetChargeCorrel(0); // same charge on cathodes
 475
 476         chamber=13;
 477         pMUON->SetNsec(chamber-1,2);
 478         AliMUONSegmentationTriggerX *seg131=new AliMUONSegmentationTriggerX;
 479         pMUON->SetSegmentationModel(chamber-1, 1, seg131);
 480         AliMUONSegmentationTriggerY *seg132=new AliMUONSegmentationTriggerY;
 481         pMUON->SetSegmentationModel(chamber-1, 2, seg132);
 482         pMUON->SetResponseModel(chamber-1, responseTrigger0);
 483         pMUON->Chamber(chamber-1).SetChargeCorrel(0); // same charge on cathodes
 484
 485         chamber=14;
 486         pMUON->SetNsec(chamber-1,2);
 487         AliMUONSegmentationTriggerX *seg141=new AliMUONSegmentationTriggerX;
 488         pMUON->SetSegmentationModel(chamber-1, 1, seg141);
 489         AliMUONSegmentationTriggerY *seg142=new AliMUONSegmentationTriggerY;
 490         pMUON->SetSegmentationModel(chamber-1, 2, seg142);
 491
 492         pMUON->SetResponseModel(chamber-1, responseTrigger0);
 493         pMUON->Chamber(chamber-1).SetChargeCorrel(0); // same charge on cathodes
 494     } else {
 495       if(pMUON->GetDebug()) {
 496         printf("\nAliMUONFactory: --------AliMUONFactory------------------------------");
 497         printf("\nAliMUONFactory:  Non default version of MUON selected               ");
 498         printf("\nAliMUONFactory:  You have to construct yourself the MUON elements !!");
 499         printf("\nAliMUONFactory: ----------------------------------------------------");
 500       }
 501     }
 502 }
 503