[u/mrichter/AliRoot.git] / MUON / AliMUONSt1GeometryBuilder.cxx

/**************************************************************************
 * Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
 *                                                                        *
 * Author: The ALICE Off-line Project.                                    *
 * Contributors are mentioned in the code where appropriate.              *
 *                                                                        *
 * Permission to use, copy, modify and distribute this software and its   *
 * documentation strictly for non-commercial purposes is hereby granted   *
 * without fee, provided that the above copyright notice appears in all   *
 * copies and that both the copyright notice and this permission notice   *
 * appear in the supporting documentation. The authors make no claims     *
 * about the suitability of this software for any purpose. It is          *
 * provided "as is" without express or implied warranty.                  *
 **************************************************************************/

// $Id$
//
// Class AliMUONSt1GeometryBuilder
// -------------------------------
// MUON Station1 coarse geometry construction class.
// Extracted from AliMUONv1
// by Ivana Hrivnacova, IPN Orsay
// Included in AliRoot 2004/01/23

#include <TVirtualMC.h>
#include <TGeoMatrix.h>

#include "AliLog.h"

#include "AliMUONSt1GeometryBuilder.h"
#include "AliMUON.h"
#include "AliMUONConstants.h"
#include "AliMUONGeometryModule.h"
#include "AliMUONGeometryEnvelopeStore.h"

ClassImp(AliMUONSt1GeometryBuilder)

//______________________________________________________________________________
AliMUONSt1GeometryBuilder::AliMUONSt1GeometryBuilder(AliMUON* muon)
 : AliMUONVGeometryBuilder(0, 1),
   fMUON(muon)
{
// Standard constructor

}

//______________________________________________________________________________
AliMUONSt1GeometryBuilder::AliMUONSt1GeometryBuilder()
 : AliMUONVGeometryBuilder(),
   fMUON(0)
{
// Default constructor
}


//______________________________________________________________________________
AliMUONSt1GeometryBuilder::AliMUONSt1GeometryBuilder(const AliMUONSt1GeometryBuilder& rhs)
  : AliMUONVGeometryBuilder(rhs)
{
// Protected copy constructor

  AliFatal("Copy constructor is not implemented.");
}

//______________________________________________________________________________
AliMUONSt1GeometryBuilder::~AliMUONSt1GeometryBuilder() {
//
}

//______________________________________________________________________________
AliMUONSt1GeometryBuilder& 
AliMUONSt1GeometryBuilder::operator = (const AliMUONSt1GeometryBuilder& rhs) 
{
// Protected assignement operator

  // check assignement to self
  if (this == &rhs) return *this;

  AliFatal("Assignment operator is not implemented.");
    
  return *this;  
}

//
// public methods
//

//______________________________________________________________________________
void AliMUONSt1GeometryBuilder::CreateGeometry()
{
// From AliMUONv1::CreateGeometry()
// ---

//********************************************************************
//                            Station 1                             **
//********************************************************************
//  CONCENTRIC
     // indices 1 and 2 for first and second chambers in the station
     // iChamber (first chamber) kept for other quanties than Z,
     // assumed to be the same in both chambers

     // Get tracking medias Ids     
     Int_t *idtmed = fMUON->GetIdtmed()->GetArray()-1099;
     Int_t idAir= idtmed[1100]; // medium 1
     Int_t idAlu1=idtmed[1103]; // medium 4
     Int_t idAlu2=idtmed[1104]; // medium 5
     Int_t idGas=idtmed[1108];  // medium 9 = Ar-CO2 gas (80%+20%)
     Bool_t frameCrosses=kTRUE;     

     // Rotation matrices in the x-y plane  
     // phi=   0 deg
     Int_t irot1;
     fMUON->AliMatrix(irot1,  90.,   0., 90.,  90., 0., 0.);
     // phi=  90 deg
     Int_t irot2;
     fMUON->AliMatrix(irot2,  90.,  90., 90., 180., 0., 0.);

     // DGas decreased from standard one (0.5)
     const Float_t kDGas = 0.4;

     // DAlu increased from standard one (3% of X0),
     // because more electronics with smaller pads
     const Float_t kDAlu = 3.5 * 8.9 / 100.;

     // Half of the total thickness of frame crosses (including DAlu)
     // for each chamber in stations 1 and 2:
     // 3% of X0 of composite material,
     // but taken as Aluminium here, with same thickness in number of X0
     Float_t dframez = 3. * 8.9 / 100;
     Float_t zfpos=-(kDGas+dframez+kDAlu)/2;
             // The same parameters are defined in builder for station 2 

     // Mother volume
     // Outer excess and inner recess for mother volume radius
     // with respect to ROuter and RInner
     Float_t dframep=.001; // Value for station 3 should be 6 ...
     // Width (RdPhi) of the frame crosses for stations 1 and 2 (cm)
     // Float_t dframep1=.001;
     Float_t dframep1 = 11.0;
     Float_t phi=2*TMath::Pi()/12/2;
             // The same parameters are defined in builder for station 2 

     Float_t tpar[3];
     Float_t dstation = (-AliMUONConstants::DefaultChamberZ(1)) - 
                        (-AliMUONConstants::DefaultChamberZ(0));
     tpar[0] = AliMUONConstants::Rmin(0)-dframep; 
     tpar[1] = (AliMUONConstants::Rmax(0)+dframep)/TMath::Cos(phi);
     tpar[2] = dstation/5;

     gMC->Gsvolu("S01M", "TUBE", idAir, tpar, 3);
     gMC->Gsvolu("S02M", "TUBE", idAir, tpar, 3);

     // CHANGED
     //gMC->Gspos("S01M", 1, "ALIC", 0., 0., zpos1 , 0, "ONLY");
     //gMC->Gspos("S02M", 1, "ALIC", 0., 0., zpos2 , 0, "ONLY");
     
     GetEnvelopes(0)->AddEnvelope("S01M", 100, false);
     GetEnvelopes(1)->AddEnvelope("S02M", 200, false);
         

// // Aluminium frames
// // Outer frames
//      pgpar[0] = 360/12/2;
//      pgpar[1] = 360.;
//      pgpar[2] = 12.;
//      pgpar[3] =   2;
//      pgpar[4] = -dframez/2;
//      pgpar[5] = AliMUONConstants::Rmax(0);
//      pgpar[6] = pgpar[5]+dframep1;
//      pgpar[7] = +dframez/2;
//      pgpar[8] = pgpar[5];
//      pgpar[9] = pgpar[6];
//      gMC->Gsvolu("S01O", "PGON", idAlu1, pgpar, 10);
//      gMC->Gsvolu("S02O", "PGON", idAlu1, pgpar, 10);
//      gMC->Gspos("S01O",1,"S01M", 0.,0.,-zfpos,  0,"ONLY");
//      gMC->Gspos("S01O",2,"S01M", 0.,0.,+zfpos,  0,"ONLY");
//      gMC->Gspos("S02O",1,"S02M", 0.,0.,-zfpos,  0,"ONLY");
//      gMC->Gspos("S02O",2,"S02M", 0.,0.,+zfpos,  0,"ONLY");
// //
// // Inner frame
//      tpar[0]= AliMUONConstants::Rmin(0)-dframep1;
//      tpar[1]= AliMUONConstants::Rmin(0);
//      tpar[2]= dframez/2;
//      gMC->Gsvolu("S01I", "TUBE", idAlu1, tpar, 3);
//      gMC->Gsvolu("S02I", "TUBE", idAlu1, tpar, 3);

//      gMC->Gspos("S01I",1,"S01M", 0.,0.,-zfpos,  0,"ONLY");
//      gMC->Gspos("S01I",2,"S01M", 0.,0.,+zfpos,  0,"ONLY");
//      gMC->Gspos("S02I",1,"S02M", 0.,0.,-zfpos,  0,"ONLY");
//      gMC->Gspos("S02I",2,"S02M", 0.,0.,+zfpos,  0,"ONLY");
//
// Frame Crosses
     if (frameCrosses) {
         // outside gas
         // security for inside mother volume
         Float_t bpar[3];
	 bpar[0] = (AliMUONConstants::Rmax(0) - AliMUONConstants::Rmin(0))
	   * TMath::Cos(TMath::ASin(dframep1 /
		   (AliMUONConstants::Rmax(0) - AliMUONConstants::Rmin(0))))
	   / 2.0;
	 bpar[1] = dframep1/2;
	 // total thickness will be (4 * bpar[2]) for each chamber,
	 // which has to be equal to (2 * dframez) - DAlu
	 bpar[2] = (2.0 * dframez - kDAlu) / 4.0;
	 gMC->Gsvolu("S01B", "BOX", idAlu1, bpar, 3);
	 gMC->Gsvolu("S02B", "BOX", idAlu1, bpar, 3);
	 
	 gMC->Gspos("S01B",1,"S01M", +AliMUONConstants::Rmin(0)+bpar[0] , 0,-zfpos, 
		    irot1,"ONLY");
	 gMC->Gspos("S01B",2,"S01M", -AliMUONConstants::Rmin(0)-bpar[0] , 0,-zfpos, 
		    irot1,"ONLY");
	 gMC->Gspos("S01B",3,"S01M", 0, +AliMUONConstants::Rmin(0)+bpar[0] ,-zfpos, 
		    irot2,"ONLY");
	 gMC->Gspos("S01B",4,"S01M", 0, -AliMUONConstants::Rmin(0)-bpar[0] ,-zfpos, 
		    irot2,"ONLY");
	 gMC->Gspos("S01B",5,"S01M", +AliMUONConstants::Rmin(0)+bpar[0] , 0,+zfpos, 
		    irot1,"ONLY");
	 gMC->Gspos("S01B",6,"S01M", -AliMUONConstants::Rmin(0)-bpar[0] , 0,+zfpos, 
		    irot1,"ONLY");
	 gMC->Gspos("S01B",7,"S01M", 0, +AliMUONConstants::Rmin(0)+bpar[0] ,+zfpos, 
		    irot2,"ONLY");
	 gMC->Gspos("S01B",8,"S01M", 0, -AliMUONConstants::Rmin(0)-bpar[0] ,+zfpos, 
		    irot2,"ONLY");
	 
	 gMC->Gspos("S02B",1,"S02M", +AliMUONConstants::Rmin(0)+bpar[0] , 0,-zfpos, 
		    irot1,"ONLY");
	 gMC->Gspos("S02B",2,"S02M", -AliMUONConstants::Rmin(0)-bpar[0] , 0,-zfpos, 
		    irot1,"ONLY");
	 gMC->Gspos("S02B",3,"S02M", 0, +AliMUONConstants::Rmin(0)+bpar[0] ,-zfpos, 
		    irot2,"ONLY");
	 gMC->Gspos("S02B",4,"S02M", 0, -AliMUONConstants::Rmin(0)-bpar[0] ,-zfpos, 
		    irot2,"ONLY");
	 gMC->Gspos("S02B",5,"S02M", +AliMUONConstants::Rmin(0)+bpar[0] , 0,+zfpos, 
		    irot1,"ONLY");
	 gMC->Gspos("S02B",6,"S02M", -AliMUONConstants::Rmin(0)-bpar[0] , 0,+zfpos, 
		    irot1,"ONLY");
	 gMC->Gspos("S02B",7,"S02M", 0, +AliMUONConstants::Rmin(0)+bpar[0] ,+zfpos, 
		    irot2,"ONLY");
	 gMC->Gspos("S02B",8,"S02M", 0, -AliMUONConstants::Rmin(0)-bpar[0] ,+zfpos, 
		    irot2,"ONLY");
     }
//
//   Chamber Material represented by Alu sheet
     tpar[0]= AliMUONConstants::Rmin(0);
     tpar[1]= AliMUONConstants::Rmax(0);
     tpar[2] = (kDGas+kDAlu)/2;
     gMC->Gsvolu("S01A", "TUBE",  idAlu2, tpar, 3);
     gMC->Gsvolu("S02A", "TUBE",idAlu2, tpar, 3);
     gMC->Gspos("S01A", 1, "S01M", 0., 0., 0.,  0, "ONLY");
     gMC->Gspos("S02A", 1, "S02M", 0., 0., 0.,  0, "ONLY");
//     
//   Sensitive volumes
     // tpar[2] = kDGas;
     tpar[2] = kDGas/2;
     gMC->Gsvolu("S01G", "TUBE", idGas, tpar, 3);
     gMC->Gsvolu("S02G", "TUBE", idGas, tpar, 3);
     gMC->Gspos("S01G", 1, "S01A", 0., 0., 0.,  0, "ONLY");
     gMC->Gspos("S02G", 1, "S02A", 0., 0., 0.,  0, "ONLY");
//
// Frame Crosses to be placed inside gas
     // NONE: chambers are sensitive everywhere
//      if (frameCrosses) {

// 	 dr = (AliMUONConstants::Rmax(0) - AliMUONConstants::Rmin(0));
// 	 bpar[0] = TMath::Sqrt(dr*dr-dframep1*dframep1/4)/2;
// 	 bpar[1] = dframep1/2;
// 	 bpar[2] = kDGas/2;
// 	 gMC->Gsvolu("S01F", "BOX", idAlu1, bpar, 3);
// 	 gMC->Gsvolu("S02F", "BOX", idAlu1, bpar, 3);
	 
// 	 gMC->Gspos("S01F",1,"S01G", +AliMUONConstants::Rmin(0)+bpar[0] , 0, 0, 
// 		    irot1,"ONLY");
// 	 gMC->Gspos("S01F",2,"S01G", -AliMUONConstants::Rmin(0)-bpar[0] , 0, 0, 
// 		    irot1,"ONLY");
// 	 gMC->Gspos("S01F",3,"S01G", 0, +AliMUONConstants::Rmin(0)+bpar[0] , 0, 
// 		    irot2,"ONLY");
// 	 gMC->Gspos("S01F",4,"S01G", 0, -AliMUONConstants::Rmin(0)-bpar[0] , 0, 
// 		    irot2,"ONLY");
	 
// 	 gMC->Gspos("S02F",1,"S02G", +AliMUONConstants::Rmin(0)+bpar[0] , 0, 0, 
// 		    irot1,"ONLY");
// 	 gMC->Gspos("S02F",2,"S02G", -AliMUONConstants::Rmin(0)-bpar[0] , 0, 0, 
// 		    irot1,"ONLY");
// 	 gMC->Gspos("S02F",3,"S02G", 0, +AliMUONConstants::Rmin(0)+bpar[0] , 0, 
// 		    irot2,"ONLY");
// 	 gMC->Gspos("S02F",4,"S02G", 0, -AliMUONConstants::Rmin(0)-bpar[0] , 0, 
// 		    irot2,"ONLY");
//      }
}

//______________________________________________________________________________
void AliMUONSt1GeometryBuilder::SetTransformations()
{
// Defines the transformations for the station2 chambers.
// ---

  Double_t zpos1= - AliMUONConstants::DefaultChamberZ(0); 
  SetTranslation(0, TGeoTranslation(0., 0., zpos1));

  Double_t zpos2 = - AliMUONConstants::DefaultChamberZ(1); 
  SetTranslation(0, TGeoTranslation(0., 0., zpos2));
}

//______________________________________________________________________________
void AliMUONSt1GeometryBuilder::SetSensitiveVolumes()
{
// Defines the sensitive volumes for station1 chambers.
// ---

  GetGeometry(0)->SetSensitiveVolume("S01G");
  GetGeometry(1)->SetSensitiveVolume("S02G");
}
Commit	Line	Data
e118b27e	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 *
	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	**************************************************************************/
	15
d1cd2474	16	// $Id$
	17	//
	18	// Class AliMUONSt1GeometryBuilder
	19	// -------------------------------
	20	// MUON Station1 coarse geometry construction class.
d1cd2474	21	// Extracted from AliMUONv1
d1cd2474	22	// by Ivana Hrivnacova, IPN Orsay
5f1df83a	23	// Included in AliRoot 2004/01/23
d1cd2474	24
	25	#include <TVirtualMC.h>
	26	#include <TGeoMatrix.h>
	27
e118b27e	28	#include "AliLog.h"
e118b27e	29
d1cd2474	30	#include "AliMUONSt1GeometryBuilder.h"
d1cd2474	31	#include "AliMUON.h"
b7ef3c96	32	#include "AliMUONConstants.h"
e118b27e	33	#include "AliMUONGeometryModule.h"
a432117a	34	#include "AliMUONGeometryEnvelopeStore.h"
d1cd2474	35
	36	ClassImp(AliMUONSt1GeometryBuilder)
	37
	38	//______________________________________________________________________________
	39	AliMUONSt1GeometryBuilder::AliMUONSt1GeometryBuilder(AliMUON* muon)
b7ef3c96	40	: AliMUONVGeometryBuilder(0, 1),
d1cd2474	41	fMUON(muon)
	42	{
	43	// Standard constructor
	44
	45	}
	46
	47	//______________________________________________________________________________
	48	AliMUONSt1GeometryBuilder::AliMUONSt1GeometryBuilder()
	49	: AliMUONVGeometryBuilder(),
	50	fMUON(0)
	51	{
	52	// Default constructor
	53	}
	54
	55
	56	//______________________________________________________________________________
	57	AliMUONSt1GeometryBuilder::AliMUONSt1GeometryBuilder(const AliMUONSt1GeometryBuilder& rhs)
	58	: AliMUONVGeometryBuilder(rhs)
	59	{
30178c30	60	// Protected copy constructor
30178c30	61
8c343c7c	62	AliFatal("Copy constructor is not implemented.");
d1cd2474	63	}
	64
	65	//______________________________________________________________________________
	66	AliMUONSt1GeometryBuilder::~AliMUONSt1GeometryBuilder() {
	67	//
	68	}
	69
	70	//______________________________________________________________________________
	71	AliMUONSt1GeometryBuilder&
	72	AliMUONSt1GeometryBuilder::operator = (const AliMUONSt1GeometryBuilder& rhs)
	73	{
30178c30	74	// Protected assignement operator
30178c30	75
d1cd2474	76	// check assignement to self
	77	if (this == &rhs) return *this;
	78
8c343c7c	79	AliFatal("Assignment operator is not implemented.");
d1cd2474	80
	81	return *this;
	82	}
	83
	84	//
	85	// public methods
	86	//
	87
	88	//______________________________________________________________________________
	89	void AliMUONSt1GeometryBuilder::CreateGeometry()
	90	{
	91	// From AliMUONv1::CreateGeometry()
	92	// ---
	93
	94	//********************************************************************
	95	// Station 1 **
	96	//********************************************************************
	97	// CONCENTRIC
	98	// indices 1 and 2 for first and second chambers in the station
	99	// iChamber (first chamber) kept for other quanties than Z,
	100	// assumed to be the same in both chambers
	101
	102	// Get tracking medias Ids
	103	Int_t *idtmed = fMUON->GetIdtmed()->GetArray()-1099;
	104	Int_t idAir= idtmed[1100]; // medium 1
	105	Int_t idAlu1=idtmed[1103]; // medium 4
	106	Int_t idAlu2=idtmed[1104]; // medium 5
	107	Int_t idGas=idtmed[1108]; // medium 9 = Ar-CO2 gas (80%+20%)
	108	Bool_t frameCrosses=kTRUE;
	109
	110	// Rotation matrices in the x-y plane
	111	// phi= 0 deg
	112	Int_t irot1;
	113	fMUON->AliMatrix(irot1, 90., 0., 90., 90., 0., 0.);
	114	// phi= 90 deg
	115	Int_t irot2;
	116	fMUON->AliMatrix(irot2, 90., 90., 90., 180., 0., 0.);
	117
d1cd2474	118	// DGas decreased from standard one (0.5)
b7ef3c96	119	const Float_t kDGas = 0.4;
d1cd2474	120
	121	// DAlu increased from standard one (3% of X0),
	122	// because more electronics with smaller pads
b7ef3c96	123	const Float_t kDAlu = 3.5 * 8.9 / 100.;
d1cd2474	124
	125	// Half of the total thickness of frame crosses (including DAlu)
	126	// for each chamber in stations 1 and 2:
	127	// 3% of X0 of composite material,
	128	// but taken as Aluminium here, with same thickness in number of X0
	129	Float_t dframez = 3. * 8.9 / 100;
b7ef3c96	130	Float_t zfpos=-(kDGas+dframez+kDAlu)/2;
d1cd2474	131	// The same parameters are defined in builder for station 2
	132
	133	// Mother volume
	134	// Outer excess and inner recess for mother volume radius
	135	// with respect to ROuter and RInner
	136	Float_t dframep=.001; // Value for station 3 should be 6 ...
	137	// Width (RdPhi) of the frame crosses for stations 1 and 2 (cm)
	138	// Float_t dframep1=.001;
	139	Float_t dframep1 = 11.0;
	140	Float_t phi=2*TMath::Pi()/12/2;
	141	// The same parameters are defined in builder for station 2
	142
	143	Float_t tpar[3];
b7ef3c96	144	Float_t dstation = (-AliMUONConstants::DefaultChamberZ(1)) -
	145	(-AliMUONConstants::DefaultChamberZ(0));
	146	tpar[0] = AliMUONConstants::Rmin(0)-dframep;
	147	tpar[1] = (AliMUONConstants::Rmax(0)+dframep)/TMath::Cos(phi);
d1cd2474	148	tpar[2] = dstation/5;
	149
	150	gMC->Gsvolu("S01M", "TUBE", idAir, tpar, 3);
	151	gMC->Gsvolu("S02M", "TUBE", idAir, tpar, 3);
	152
	153	// CHANGED
	154	//gMC->Gspos("S01M", 1, "ALIC", 0., 0., zpos1 , 0, "ONLY");
a432117a	155	//gMC->Gspos("S02M", 1, "ALIC", 0., 0., zpos2 , 0, "ONLY");
	156
	157	GetEnvelopes(0)->AddEnvelope("S01M", 100, false);
	158	GetEnvelopes(1)->AddEnvelope("S02M", 200, false);
	159
d1cd2474	160
	161	// // Aluminium frames
	162	// // Outer frames
	163	// pgpar[0] = 360/12/2;
	164	// pgpar[1] = 360.;
	165	// pgpar[2] = 12.;
	166	// pgpar[3] = 2;
	167	// pgpar[4] = -dframez/2;
b7ef3c96	168	// pgpar[5] = AliMUONConstants::Rmax(0);
d1cd2474	169	// pgpar[6] = pgpar[5]+dframep1;
	170	// pgpar[7] = +dframez/2;
	171	// pgpar[8] = pgpar[5];
	172	// pgpar[9] = pgpar[6];
	173	// gMC->Gsvolu("S01O", "PGON", idAlu1, pgpar, 10);
	174	// gMC->Gsvolu("S02O", "PGON", idAlu1, pgpar, 10);
	175	// gMC->Gspos("S01O",1,"S01M", 0.,0.,-zfpos, 0,"ONLY");
	176	// gMC->Gspos("S01O",2,"S01M", 0.,0.,+zfpos, 0,"ONLY");
	177	// gMC->Gspos("S02O",1,"S02M", 0.,0.,-zfpos, 0,"ONLY");
	178	// gMC->Gspos("S02O",2,"S02M", 0.,0.,+zfpos, 0,"ONLY");
	179	// //
	180	// // Inner frame
b7ef3c96	181	// tpar[0]= AliMUONConstants::Rmin(0)-dframep1;
b7ef3c96	182	// tpar[1]= AliMUONConstants::Rmin(0);
d1cd2474	183	// tpar[2]= dframez/2;
	184	// gMC->Gsvolu("S01I", "TUBE", idAlu1, tpar, 3);
	185	// gMC->Gsvolu("S02I", "TUBE", idAlu1, tpar, 3);
	186
	187	// gMC->Gspos("S01I",1,"S01M", 0.,0.,-zfpos, 0,"ONLY");
	188	// gMC->Gspos("S01I",2,"S01M", 0.,0.,+zfpos, 0,"ONLY");
	189	// gMC->Gspos("S02I",1,"S02M", 0.,0.,-zfpos, 0,"ONLY");
	190	// gMC->Gspos("S02I",2,"S02M", 0.,0.,+zfpos, 0,"ONLY");
	191	//
	192	// Frame Crosses
	193	if (frameCrosses) {
	194	// outside gas
	195	// security for inside mother volume
	196	Float_t bpar[3];
b7ef3c96	197	bpar[0] = (AliMUONConstants::Rmax(0) - AliMUONConstants::Rmin(0))
d1cd2474	198	* TMath::Cos(TMath::ASin(dframep1 /
b7ef3c96	199	(AliMUONConstants::Rmax(0) - AliMUONConstants::Rmin(0))))
d1cd2474	200	/ 2.0;
	201	bpar[1] = dframep1/2;
	202	// total thickness will be (4 * bpar[2]) for each chamber,
	203	// which has to be equal to (2 * dframez) - DAlu
b7ef3c96	204	bpar[2] = (2.0 * dframez - kDAlu) / 4.0;
d1cd2474	205	gMC->Gsvolu("S01B", "BOX", idAlu1, bpar, 3);
	206	gMC->Gsvolu("S02B", "BOX", idAlu1, bpar, 3);
	207
b7ef3c96	208	gMC->Gspos("S01B",1,"S01M", +AliMUONConstants::Rmin(0)+bpar[0] , 0,-zfpos,
d1cd2474	209	irot1,"ONLY");
b7ef3c96	210	gMC->Gspos("S01B",2,"S01M", -AliMUONConstants::Rmin(0)-bpar[0] , 0,-zfpos,
d1cd2474	211	irot1,"ONLY");
b7ef3c96	212	gMC->Gspos("S01B",3,"S01M", 0, +AliMUONConstants::Rmin(0)+bpar[0] ,-zfpos,
d1cd2474	213	irot2,"ONLY");
b7ef3c96	214	gMC->Gspos("S01B",4,"S01M", 0, -AliMUONConstants::Rmin(0)-bpar[0] ,-zfpos,
d1cd2474	215	irot2,"ONLY");
b7ef3c96	216	gMC->Gspos("S01B",5,"S01M", +AliMUONConstants::Rmin(0)+bpar[0] , 0,+zfpos,
d1cd2474	217	irot1,"ONLY");
b7ef3c96	218	gMC->Gspos("S01B",6,"S01M", -AliMUONConstants::Rmin(0)-bpar[0] , 0,+zfpos,
d1cd2474	219	irot1,"ONLY");
b7ef3c96	220	gMC->Gspos("S01B",7,"S01M", 0, +AliMUONConstants::Rmin(0)+bpar[0] ,+zfpos,
d1cd2474	221	irot2,"ONLY");
b7ef3c96	222	gMC->Gspos("S01B",8,"S01M", 0, -AliMUONConstants::Rmin(0)-bpar[0] ,+zfpos,
d1cd2474	223	irot2,"ONLY");
d1cd2474	224
b7ef3c96	225	gMC->Gspos("S02B",1,"S02M", +AliMUONConstants::Rmin(0)+bpar[0] , 0,-zfpos,
d1cd2474	226	irot1,"ONLY");
b7ef3c96	227	gMC->Gspos("S02B",2,"S02M", -AliMUONConstants::Rmin(0)-bpar[0] , 0,-zfpos,
d1cd2474	228	irot1,"ONLY");
b7ef3c96	229	gMC->Gspos("S02B",3,"S02M", 0, +AliMUONConstants::Rmin(0)+bpar[0] ,-zfpos,
d1cd2474	230	irot2,"ONLY");
b7ef3c96	231	gMC->Gspos("S02B",4,"S02M", 0, -AliMUONConstants::Rmin(0)-bpar[0] ,-zfpos,
d1cd2474	232	irot2,"ONLY");
b7ef3c96	233	gMC->Gspos("S02B",5,"S02M", +AliMUONConstants::Rmin(0)+bpar[0] , 0,+zfpos,
d1cd2474	234	irot1,"ONLY");
b7ef3c96	235	gMC->Gspos("S02B",6,"S02M", -AliMUONConstants::Rmin(0)-bpar[0] , 0,+zfpos,
d1cd2474	236	irot1,"ONLY");
b7ef3c96	237	gMC->Gspos("S02B",7,"S02M", 0, +AliMUONConstants::Rmin(0)+bpar[0] ,+zfpos,
d1cd2474	238	irot2,"ONLY");
b7ef3c96	239	gMC->Gspos("S02B",8,"S02M", 0, -AliMUONConstants::Rmin(0)-bpar[0] ,+zfpos,
d1cd2474	240	irot2,"ONLY");
	241	}
	242	//
	243	// Chamber Material represented by Alu sheet
b7ef3c96	244	tpar[0]= AliMUONConstants::Rmin(0);
	245	tpar[1]= AliMUONConstants::Rmax(0);
	246	tpar[2] = (kDGas+kDAlu)/2;
d1cd2474	247	gMC->Gsvolu("S01A", "TUBE", idAlu2, tpar, 3);
	248	gMC->Gsvolu("S02A", "TUBE",idAlu2, tpar, 3);
	249	gMC->Gspos("S01A", 1, "S01M", 0., 0., 0., 0, "ONLY");
	250	gMC->Gspos("S02A", 1, "S02M", 0., 0., 0., 0, "ONLY");
	251	//
	252	// Sensitive volumes
b7ef3c96	253	// tpar[2] = kDGas;
b7ef3c96	254	tpar[2] = kDGas/2;
d1cd2474	255	gMC->Gsvolu("S01G", "TUBE", idGas, tpar, 3);
	256	gMC->Gsvolu("S02G", "TUBE", idGas, tpar, 3);
	257	gMC->Gspos("S01G", 1, "S01A", 0., 0., 0., 0, "ONLY");
	258	gMC->Gspos("S02G", 1, "S02A", 0., 0., 0., 0, "ONLY");
	259	//
	260	// Frame Crosses to be placed inside gas
	261	// NONE: chambers are sensitive everywhere
	262	// if (frameCrosses) {
	263
b7ef3c96	264	// dr = (AliMUONConstants::Rmax(0) - AliMUONConstants::Rmin(0));
d1cd2474	265	// bpar[0] = TMath::Sqrt(drdr-dframep1dframep1/4)/2;
d1cd2474	266	// bpar[1] = dframep1/2;
b7ef3c96	267	// bpar[2] = kDGas/2;
d1cd2474	268	// gMC->Gsvolu("S01F", "BOX", idAlu1, bpar, 3);
	269	// gMC->Gsvolu("S02F", "BOX", idAlu1, bpar, 3);
	270
b7ef3c96	271	// gMC->Gspos("S01F",1,"S01G", +AliMUONConstants::Rmin(0)+bpar[0] , 0, 0,
d1cd2474	272	// irot1,"ONLY");
b7ef3c96	273	// gMC->Gspos("S01F",2,"S01G", -AliMUONConstants::Rmin(0)-bpar[0] , 0, 0,
d1cd2474	274	// irot1,"ONLY");
b7ef3c96	275	// gMC->Gspos("S01F",3,"S01G", 0, +AliMUONConstants::Rmin(0)+bpar[0] , 0,
d1cd2474	276	// irot2,"ONLY");
b7ef3c96	277	// gMC->Gspos("S01F",4,"S01G", 0, -AliMUONConstants::Rmin(0)-bpar[0] , 0,
d1cd2474	278	// irot2,"ONLY");
d1cd2474	279
b7ef3c96	280	// gMC->Gspos("S02F",1,"S02G", +AliMUONConstants::Rmin(0)+bpar[0] , 0, 0,
d1cd2474	281	// irot1,"ONLY");
b7ef3c96	282	// gMC->Gspos("S02F",2,"S02G", -AliMUONConstants::Rmin(0)-bpar[0] , 0, 0,
d1cd2474	283	// irot1,"ONLY");
b7ef3c96	284	// gMC->Gspos("S02F",3,"S02G", 0, +AliMUONConstants::Rmin(0)+bpar[0] , 0,
d1cd2474	285	// irot2,"ONLY");
b7ef3c96	286	// gMC->Gspos("S02F",4,"S02G", 0, -AliMUONConstants::Rmin(0)-bpar[0] , 0,
d1cd2474	287	// irot2,"ONLY");
	288	// }
	289	}
	290
	291	//______________________________________________________________________________
	292	void AliMUONSt1GeometryBuilder::SetTransformations()
	293	{
	294	// Defines the transformations for the station2 chambers.
	295	// ---
	296
b7ef3c96	297	Double_t zpos1= - AliMUONConstants::DefaultChamberZ(0);
b7ef3c96	298	SetTranslation(0, TGeoTranslation(0., 0., zpos1));
d1cd2474	299
b7ef3c96	300	Double_t zpos2 = - AliMUONConstants::DefaultChamberZ(1);
b7ef3c96	301	SetTranslation(0, TGeoTranslation(0., 0., zpos2));
d1cd2474	302	}
	303
	304	//______________________________________________________________________________
	305	void AliMUONSt1GeometryBuilder::SetSensitiveVolumes()
	306	{
	307	// Defines the sensitive volumes for station1 chambers.
	308	// ---
	309
e118b27e	310	GetGeometry(0)->SetSensitiveVolume("S01G");
e118b27e	311	GetGeometry(1)->SetSensitiveVolume("S02G");
d1cd2474	312	}