[u/mrichter/AliRoot.git] / EMCAL / AliEMCALv0.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.                  *
 **************************************************************************/
/* $Id$ */

//_________________________________________________________________________
// Implementation version v0 of EMCAL Manager class 
// An object of this class does not produce hits nor digits
// It is the one to use if you do not want to produce outputs in TREEH or TREED
// This class places a Geometry of the EMCAL in the ALICE Detector as defined in AliEMCALGeometry.cxx                 
//*-- Author: Yves Schutz (SUBATECH)
//*-- and   : Sahal Yacoob (LBL / UCT)

// This Version of AliEMCALv0 reduces the number of volumes placed in XEN1 (the envelope) to less than five hundred
// The Envelope is Placed in Alice, And the Aluminium layer. Mini envelopes (XU) are then placed in XEN1.
// Each mini envelope contains 2 scintillator, and 2 lead layers, except the last one which contains just one scintillator layer.
// At the moment I cannot place the 36 and above layers in the mini envelopes so all layers are still placed in XEN1


// --- ROOT system ---

#include "TPGON.h"
#include "TTUBS.h"
#include "TNode.h"
#include "TRandom.h"
#include "TGeometry.h"

// --- Standard library ---

#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include <Rstrstream.h>
#include <Riostream.h>

// --- AliRoot header files ---

#include "AliEMCALv0.h"
#include "AliEMCALGeometry.h"
#include "AliConst.h"
#include "AliRun.h"

ClassImp(AliEMCALv0)

//______________________________________________________________________
AliEMCALv0::AliEMCALv0(const char *name, const char *title):
  AliEMCAL(name,title)
{
  // ctor : title is used to identify the layout
  GetGeometry() ; 

}

//______________________________________________________________________
void AliEMCALv0::BuildGeometry()
{
    // Display Geometry for display.C

    const Int_t kColorArm1   = kBlue ;

    AliEMCALGeometry * geom = GetGeometry() ; 

    // Define the shape of the Calorimeter 
    TNode * top = gAlice->GetGeometry()->GetNode("alice") ;
    new TTUBS("Envelop1", "Tubs that contains arm 1", "void", 
	      geom->GetEnvelop(0),     // rmin 
	      geom->GetEnvelop(1) +30 ,     // rmax
	      geom->GetEnvelop(2)/2.0, // half length in Z
	      geom->GetArm1PhiMin(),   // minimun phi angle
	      geom->GetArm1PhiMax()    // maximun phi angle
	);

    // Place the Node
    top->cd();
    TNode * envelop1node = new TNode("Envelop1", "Arm1 Envelop", "Envelop1"
				     ,0., 0., 0., "") ;
    envelop1node->SetLineColor(kColorArm1) ;
    fNodes->Add(envelop1node) ;
}

//______________________________________________________________________
void AliEMCALv0::CreateGeometry()
{
  // Create the EMCAL geometry for Geant
  // Geometry of a tower
  //|-----------------------------------------------------| XEN1
  //| |                                                 | |
  //| |    Al thickness = GetAlFrontThickness()         | |
  //| |                                                 | |
  //| |                                                 | |
  //| |                                                 | |
  //|  -------------------------------------------------  |
  //| |    Air Gap = GetGap2Active()                    | |
  //| |                                                 | |
  //|  -------------------------------------------------  |
  //| |    XU0 : XPST (PreShower e = GetPreSintThick() )| |
  //|  -------------------------------------------------  |
  //| |    XU0 : XPBX (PreShower e = GetPbRadThick() )  | |
  //|  -------------------------------------------------  |
  //| |    XU0 : XPST (PreShower e = GetPreSintThick() )| |
  //|  -------------------------------------------------  |
  //| |    XU0 : XPBX (PreShower e = GetPbRadThick() )  | |
  //|  -------------------------------------------------  |
  //| |    XU1 : XPST (Tower e = GetFullSintThick() )   | |
  //|  -------------------------------------------------  |
  //| |    XU1 : XPBX (Tower e = GetPbRadThick() )      | |
  //|  -------------------------------------------------  |
  //| |    XU1 : XPST (Tower e = GetFullSintThick()     | |
  //|  -------------------------------------------------  |
  //| |    XU1 : XPBX (Tower e = GetPbRadThick() )      | |
  //|  -------------------------------------------------  |
  //|    etc .....                                        |
  //|  -------------------------------------------------  |
  //| |    XU10 : XPST (Tower e = GetFullSintThick() )  | |
  //|-----------------------------------------------------|
 
    Float_t etamin,etamax;
    Float_t *dum=0;

    AliEMCALGeometry * geom = GetGeometry() ; 

    if(!(geom->IsInitialized())){
	Error("CreateGeometry","EMCAL Geometry class has not been set up.");
    } // end if

    // Get pointer to the array containing media indices
    Int_t *idtmed = fIdtmed->GetArray() - 1599 ;

    Int_t idrotm = 1;
    AliMatrix(idrotm, 90.0, 0., 90.0, 90.0, 0.0, 0.0) ;


    // Create the EMCAL Mother Volume (a polygone) within which to place the Detector and named XEN1 

    Float_t envelopA[10];
    envelopA[0] = geom->GetArm1PhiMin();                         // minimum phi angle
    envelopA[1] = geom->GetArm1PhiMax() - geom->GetArm1PhiMin(); // angular range in phi
    envelopA[2] = geom->GetNPhi();                               // number of sections in phi
    envelopA[3] = 2;                                             // 2 z coordinates
    envelopA[4] = geom->ZFromEtaR(geom->GetEnvelop(0),
				   geom->GetArm1EtaMin());       // z coordinate 1
    envelopA[5] = geom->GetEnvelop(0) ;                          // rmin at z1
    envelopA[6] = geom->GetEnvelop(1) ;                          // rmax at z1
    envelopA[7] = geom->ZFromEtaR(geom->GetEnvelop(0),
				  geom->GetArm1EtaMax());        // z coordinate 2
    envelopA[8] = envelopA[5] ;                                  // radii are the same.
    envelopA[9] = envelopA[6] ;                                  // radii are the same.

    gMC->Gsvolu("XEN1", "PGON ", idtmed[1599], envelopA, 10) ;   // Polygone filled with air 

    // Position the EMCAL Mother Volume (XEN1) in Alice (ALIC)  

    gMC->Gspos("XEN1", 1, "ALIC", 0.0, 0.0, 0.0, idrotm, "ONLY") ;
    
    if (fDebug==2) 
      Info("CreateGeometry","rXEN1 = %f, %f\n", envelopA[5], envelopA[6]); 

    // Create mini-envelopes which will contain the PreShower scintillator-Lead-scintillator-lead (XU0) 
   
    TString label = "XU0";

    envelopA[5] = envelopA[5] + geom->GetGap2Active() 
      + geom->GetAlFrontThickness();                              // rmin at z1
    envelopA[4] = geom->ZFromEtaR(envelopA[5],
				  geom->GetArm1EtaMin());         // z coordinate 1
    envelopA[7] = geom->ZFromEtaR(envelopA[5],
				  geom->GetArm1EtaMax());         // z coordinate 2
    envelopA[6] = envelopA[5] + 2 * (geom->GetPreSintThick()
      + geom->GetPbRadThick() );                                  // rmax at z1
    envelopA[8] = envelopA[5] ;                                   // radii are the same.
    envelopA[9] = envelopA[6] ;                                   // radii are the same.
    
    gMC->Gsvolu(label.Data(), "PGON", idtmed[1599], envelopA, 10);// Polygone filled with air 

    // Position XU0 in XEN1
  
    gMC->Gspos(label.Data(), 1, "XEN1", 0.0, 0.0, 0.0, idrotm, "ONLY");

    if (fDebug==2) 
      Info("CreateGeometry","rXU0 = %f, %f\n", envelopA[5], envelopA[6]); 

    // Create mini-envelopes which will contain the Tower scintillator-Lead-scintillator-lead (XU1 -> XU9)
    
    Float_t tseg = geom->GetFullSintThick()+geom->GetPbRadThick(); // thickness of scintillator+Pb
 
    Int_t i ; 
    for (i = 1; i < ((geom->GetNLayers()-2)/2) + 1 ; i++ ){
	label = "XU" ;
	label += i ;
	envelopA[5] = envelopA[6] ;                                   // rmin at z1
	envelopA[4] = geom->ZFromEtaR(envelopA[5],
				      geom->GetArm1EtaMin());         // z coordinate 1
	envelopA[7] = geom->ZFromEtaR(envelopA[5],
				      geom->GetArm1EtaMax());         // z coordinate 2
	envelopA[6] = envelopA[5] + 2 * tseg ;                        // rmax at z1
	envelopA[8] = envelopA[5] ;                                   // radii are the same.
	envelopA[9] = envelopA[6] ;                                   // radii are the same.
 
	gMC->Gsvolu(label.Data(), "PGON", idtmed[1599], envelopA, 10);// Polygone filled with air 

	// Position XUi in XEN1
	
	gMC->Gspos(label.Data(), 1, "XEN1", 0.0, 0.0, 0.0, idrotm, "ONLY") ;

	if (fDebug==2) 
	  Info("CreateGeometry","rXEN%d = %f, %f\n", i, envelopA[5], envelopA[6]); 

    } // end  i
 
  
    // Create one mini-envelope which will contain the last Tower scintillator (XU(nlayers-1)/2)

    tseg = geom->GetFullSintThick() ;
    label = "XU" ;
    label += i ;
    envelopA[5] = envelopA[6] ;                                   // rmin at z1
    envelopA[4] = geom->ZFromEtaR(envelopA[5],
				  geom->GetArm1EtaMin());         // z coordinate 1
    envelopA[7] = geom->ZFromEtaR(envelopA[5],
				  geom->GetArm1EtaMax());         // z coordinate 2
    envelopA[6] = envelopA[5] + tseg ;                            // rmax at z1
    envelopA[8] = envelopA[5] ;                                   // radii are the same.
    envelopA[9] = envelopA[6] ;                                   // radii are the same.

    gMC->Gsvolu(label.Data(), "PGON", idtmed[1599], envelopA, 10); // Polygone filled with air

    // Position XU10 in XEN1
  
    gMC->Gspos(label.Data(), 1, "XEN1", 0.0, 0.0, 0.0, idrotm, "ONLY") ;
  
    if (fDebug==2) 
      Info("CreateGeometry","rXEN%d = %f, %f\n", i, envelopA[5], envelopA[6]); 
  
    // Create the shapes of active material (LEAD/Aluminium/Scintillator)
    // to be placed
    Float_t envelopB[10]; // First Layer of Aluminium
    Float_t envelopC[10]; // Scintillator Layers
    Float_t envelopD[10]; // Lead Layers

    envelopC[0] = envelopD[0] = envelopB[0] = envelopA[0] ;  // starting position in Phi
    envelopC[1] = envelopD[1] = envelopB[1] = envelopA[1] ;  // angular range in phi          
    envelopC[2] = envelopD[2] = envelopB[2] = envelopA[2] ;  // number of sections in Phi
    envelopD[3] = envelopC[3] = envelopB[3] = envelopA[3] ;  // 2 z coordinates

    envelopB[4] = geom->ZFromEtaR(geom->GetEnvelop(0),
				  geom->GetArm1EtaMin());   // z co-ordinate 1
    envelopB[5] = geom->GetEnvelop(0) ;                     // rmin at z1
    envelopB[6] = envelopB[5] + geom->GetAlFrontThickness();// rmax at z1
    envelopB[7] = geom->ZFromEtaR(geom->GetEnvelop(0),
				  geom->GetArm1EtaMax());   // z co-ordinate 2
    envelopB[8] = envelopB[5] ;                             // radii are the same.
    envelopB[9] = envelopB[6] ;                             // radii are the same.

    // Define active volumes completely
    
    gMC->Gsvolu("XALU", "PGON", idtmed[1602], envelopB, 10); // PGON filled with Al
    
    gMC->Gspos("XALU", 1, "XEN1", 0.0, 0.0, 0.0 , idrotm, "ONLY") ; // Position Aluminium Layer in XEN1

    gMC->Gsvolu("XPST", "PGON", idtmed[1601], dum, 0);      // PGON filled with Scintillator (shape to be defined by GSPOSP)
  
    gMC->Gsvolu("XPBX", "PGON", idtmed[1600], dum, 0);      // PGON filled with Lead (shape to be defined by GSPOSP)
  
    gMC->Gsdvn("XPHI", "XPST", geom->GetNPhi(), 2);         // Divide eta section of scintillators into phi segments.
 
    // Position alternatively scintillator and  Lead Layers in XUi.

    envelopD[6] = envelopB[6] + geom->GetGap2Active() ;// gap between Al layer and XU0

    for (int i = 0; i < geom->GetNLayers() ; i++ ){
	label = "XU" ;
        label += static_cast<Int_t> (i/2)  ; // we will place two layers (i = one layer) in each mini envelope)	
        envelopC[5] = envelopD[6] ; //rmin
	envelopC[6] = envelopD[6] + ((i > 1)  ? geom->GetFullSintThick() : 
				     geom->GetPreSintThick());//rmax larger for first two layers (preshower)
	envelopC[8] = envelopD[6] ; //rmin
	envelopC[9] = envelopD[6] + ((i > 1 ) ? geom->GetFullSintThick() :
				     geom->GetPreSintThick());//rmax larger for first two layers (preshower)
	for (int j =0; j < (geom->GetNEta()) ; j++){
	    etamin = geom->GetArm1EtaMin()+
		(j*geom->GetDeltaEta());
	    etamax = geom->GetArm1EtaMin()+
		((j+1)*geom->GetDeltaEta());
	    envelopC[4] = geom->ZFromEtaR(envelopD[6],etamin); //z begin  
	    envelopC[7] = geom->ZFromEtaR(envelopD[6],etamax);// z end 

	    gMC->Gsposp("XPST",1+j+i*(geom->GetNEta()), label.Data(), 
			0.0, 0.0, 0.0 , idrotm, "ONLY", envelopC, 10); // Position and define layer
	} // end for j

	if (i < (geom->GetNLayers()-1)){ // except for the last XU which contains only one scintillator layer
	    envelopD[5] = envelopC[6] ; //rmin
	    envelopD[6] = envelopC[6] + geom->GetPbRadThick();  //rmax
	    envelopD[8] = envelopC[6] ; //rmin
	    envelopD[9] = envelopC[6] + geom->GetPbRadThick();  //rmax
	    for (int j =0; j < (geom->GetNEta()) ; j++){
		etamin = geom->GetArm1EtaMin()+
		    (j*geom->GetDeltaEta());
		etamax = geom->GetArm1EtaMin()+
		    ((j+1)*geom->GetDeltaEta());
		envelopD[4] = geom->ZFromEtaR(envelopC[6],etamin);//z begin  
		envelopD[7] = geom->ZFromEtaR(envelopC[6],etamax);// z end

		// Position and Define Layer

		gMC->Gsposp("XPBX",1+j+i*(geom->GetNEta()), label.Data(), 
			    0.0, 0.0, 0.0 , idrotm, "ONLY", envelopD, 10);
	    } // end for j
	} // end if i
    }  // for i
}

//______________________________________________________________________
void AliEMCALv0::Init(void)
{
    // Just prints an information message
  
  if(fDebug) { 
    TString message("\n") ; 
    message += "*****************************************" ;
    
    // Here the EMCAL initialisation code (if any!)
    
    AliEMCALGeometry * geom = GetGeometry() ; 
    
    if (geom!=0) {   
      message += "AliEMCAL " ; 
      message += Version() ; 
      message += "EMCAL geometry intialized for " ; 
      message += geom->GetName()  ;
    }
    else {
      message += "AliEMCAL " ; 
      message += Version() ;  
      message += "EMCAL geometry initialization failed !" ; 
    }
    message += "*****************************************" ;
    Info("Init", message.Data() ) ; 
  }
}
Commit	Line	Data
2012850d	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	**************************************************************************/
2012850d	15	/* $Id$ */
	16
	17	//_________________________________________________________________________
	18	// Implementation version v0 of EMCAL Manager class
	19	// An object of this class does not produce hits nor digits
	20	// It is the one to use if you do not want to produce outputs in TREEH or TREED
ffa6d63b	21	// This class places a Geometry of the EMCAL in the ALICE Detector as defined in AliEMCALGeometry.cxx
2012850d	22	//*-- Author: Yves Schutz (SUBATECH)
b13bbe81	23	//*-- and : Sahal Yacoob (LBL / UCT)
2012850d	24
09641ef5	25	// This Version of AliEMCALv0 reduces the number of volumes placed in XEN1 (the envelope) to less than five hundred
	26	// The Envelope is Placed in Alice, And the Aluminium layer. Mini envelopes (XU) are then placed in XEN1.
	27	// Each mini envelope contains 2 scintillator, and 2 lead layers, except the last one which contains just one scintillator layer.
	28	// At the moment I cannot place the 36 and above layers in the mini envelopes so all layers are still placed in XEN1
	29
	30
2012850d	31	// --- ROOT system ---
a1469a24	32
b13bbe81	33	#include "TPGON.h"
2012850d	34	#include "TTUBS.h"
	35	#include "TNode.h"
	36	#include "TRandom.h"
	37	#include "TGeometry.h"
a1469a24	38
2012850d	39	// --- Standard library ---
2012850d	40
b13bbe81	41	#include <stdio.h>
	42	#include <string.h>
	43	#include <stdlib.h>
70479d0e	44	#include <Rstrstream.h>
70479d0e	45	#include <Riostream.h>
2012850d	46
	47	// --- AliRoot header files ---
	48
	49	#include "AliEMCALv0.h"
	50	#include "AliEMCALGeometry.h"
b13bbe81	51	#include "AliConst.h"
2012850d	52	#include "AliRun.h"
2012850d	53
	54	ClassImp(AliEMCALv0)
	55
b13bbe81	56	//______________________________________________________________________
2012850d	57	AliEMCALv0::AliEMCALv0(const char name, const char title):
05a92d59	58	AliEMCAL(name,title)
	59	{
	60	// ctor : title is used to identify the layout
	61	GetGeometry() ;
a1469a24	62
2012850d	63	}
a1469a24	64
b13bbe81	65	//______________________________________________________________________
05a92d59	66	void AliEMCALv0::BuildGeometry()
05a92d59	67	{
b13bbe81	68	// Display Geometry for display.C
2012850d	69
b13bbe81	70	const Int_t kColorArm1 = kBlue ;
91e9918b	71
05a92d59	72	AliEMCALGeometry * geom = GetGeometry() ;
a1469a24	73
05a92d59	74	// Define the shape of the Calorimeter
5502a765	75	TNode * top = gAlice->GetGeometry()->GetNode("alice") ;
b13bbe81	76	new TTUBS("Envelop1", "Tubs that contains arm 1", "void",
05a92d59	77	geom->GetEnvelop(0), // rmin
	78	geom->GetEnvelop(1) +30 , // rmax
	79	geom->GetEnvelop(2)/2.0, // half length in Z
	80	geom->GetArm1PhiMin(), // minimun phi angle
	81	geom->GetArm1PhiMax() // maximun phi angle
b13bbe81	82	);
a1469a24	83
ffa6d63b	84	// Place the Node
5502a765	85	top->cd();
5502a765	86	TNode * envelop1node = new TNode("Envelop1", "Arm1 Envelop", "Envelop1"
5502a765	87	,0., 0., 0., "") ;
b13bbe81	88	envelop1node->SetLineColor(kColorArm1) ;
b13bbe81	89	fNodes->Add(envelop1node) ;
2012850d	90	}
a1469a24	91
b13bbe81	92	//______________________________________________________________________
05a92d59	93	void AliEMCALv0::CreateGeometry()
05a92d59	94	{
f590bb15	95	// Create the EMCAL geometry for Geant
	96	// Geometry of a tower
	97	//\|-----------------------------------------------------\| XEN1
	98	//\| \| \| \|
	99	//\| \| Al thickness = GetAlFrontThickness() \| \|
	100	//\| \| \| \|
	101	//\| \| \| \|
	102	//\| \| \| \|
	103	//\| ------------------------------------------------- \|
	104	//\| \| Air Gap = GetGap2Active() \| \|
	105	//\| \| \| \|
	106	//\| ------------------------------------------------- \|
	107	//\| \| XU0 : XPST (PreShower e = GetPreSintThick() )\| \|
	108	//\| ------------------------------------------------- \|
	109	//\| \| XU0 : XPBX (PreShower e = GetPbRadThick() ) \| \|
	110	//\| ------------------------------------------------- \|
	111	//\| \| XU0 : XPST (PreShower e = GetPreSintThick() )\| \|
	112	//\| ------------------------------------------------- \|
	113	//\| \| XU0 : XPBX (PreShower e = GetPbRadThick() ) \| \|
	114	//\| ------------------------------------------------- \|
	115	//\| \| XU1 : XPST (Tower e = GetFullSintThick() ) \| \|
	116	//\| ------------------------------------------------- \|
	117	//\| \| XU1 : XPBX (Tower e = GetPbRadThick() ) \| \|
	118	//\| ------------------------------------------------- \|
	119	//\| \| XU1 : XPST (Tower e = GetFullSintThick() \| \|
	120	//\| ------------------------------------------------- \|
	121	//\| \| XU1 : XPBX (Tower e = GetPbRadThick() ) \| \|
	122	//\| ------------------------------------------------- \|
	123	//\| etc ..... \|
	124	//\| ------------------------------------------------- \|
	125	//\| \| XU10 : XPST (Tower e = GetFullSintThick() ) \| \|
	126	//\|-----------------------------------------------------\|
	127
a1469a24	128	Float_t etamin,etamax;
3ca04a8a	129	Float_t *dum=0;
3ca04a8a	130
05a92d59	131	AliEMCALGeometry * geom = GetGeometry() ;
a1469a24	132
05a92d59	133	if(!(geom->IsInitialized())){
a1469a24	134	Error("CreateGeometry","EMCAL Geometry class has not been set up.");
b13bbe81	135	} // end if
a1469a24	136
b13bbe81	137	// Get pointer to the array containing media indices
b13bbe81	138	Int_t *idtmed = fIdtmed->GetArray() - 1599 ;
e13bd4f0	139
09641ef5	140	Int_t idrotm = 1;
	141	AliMatrix(idrotm, 90.0, 0., 90.0, 90.0, 0.0, 0.0) ;
	142
a1469a24	143
c13b5a7c	144	// Create the EMCAL Mother Volume (a polygone) within which to place the Detector and named XEN1
	145
	146	Float_t envelopA[10];
	147	envelopA[0] = geom->GetArm1PhiMin(); // minimum phi angle
	148	envelopA[1] = geom->GetArm1PhiMax() - geom->GetArm1PhiMin(); // angular range in phi
	149	envelopA[2] = geom->GetNPhi(); // number of sections in phi
	150	envelopA[3] = 2; // 2 z coordinates
	151	envelopA[4] = geom->ZFromEtaR(geom->GetEnvelop(0),
	152	geom->GetArm1EtaMin()); // z coordinate 1
	153	envelopA[5] = geom->GetEnvelop(0) ; // rmin at z1
	154	envelopA[6] = geom->GetEnvelop(1) ; // rmax at z1
	155	envelopA[7] = geom->ZFromEtaR(geom->GetEnvelop(0),
	156	geom->GetArm1EtaMax()); // z coordinate 2
	157	envelopA[8] = envelopA[5] ; // radii are the same.
	158	envelopA[9] = envelopA[6] ; // radii are the same.
	159
	160	gMC->Gsvolu("XEN1", "PGON ", idtmed[1599], envelopA, 10) ; // Polygone filled with air
09641ef5	161
c13b5a7c	162	// Position the EMCAL Mother Volume (XEN1) in Alice (ALIC)
09641ef5	163
c13b5a7c	164	gMC->Gspos("XEN1", 1, "ALIC", 0.0, 0.0, 0.0, idrotm, "ONLY") ;
c13b5a7c	165
2f909c8d	166	if (fDebug==2)
c13b5a7c	167	Info("CreateGeometry","rXEN1 = %f, %f\n", envelopA[5], envelopA[6]);
a1469a24	168
c13b5a7c	169	// Create mini-envelopes which will contain the PreShower scintillator-Lead-scintillator-lead (XU0)
	170
	171	TString label = "XU0";
a1469a24	172
c13b5a7c	173	envelopA[5] = envelopA[5] + geom->GetGap2Active()
	174	+ geom->GetAlFrontThickness(); // rmin at z1
	175	envelopA[4] = geom->ZFromEtaR(envelopA[5],
	176	geom->GetArm1EtaMin()); // z coordinate 1
	177	envelopA[7] = geom->ZFromEtaR(envelopA[5],
	178	geom->GetArm1EtaMax()); // z coordinate 2
	179	envelopA[6] = envelopA[5] + 2 * (geom->GetPreSintThick()
	180	+ geom->GetPbRadThick() ); // rmax at z1
	181	envelopA[8] = envelopA[5] ; // radii are the same.
	182	envelopA[9] = envelopA[6] ; // radii are the same.
	183
	184	gMC->Gsvolu(label.Data(), "PGON", idtmed[1599], envelopA, 10);// Polygone filled with air
	185
	186	// Position XU0 in XEN1
	187
a1469a24	188	gMC->Gspos(label.Data(), 1, "XEN1", 0.0, 0.0, 0.0, idrotm, "ONLY");
a1469a24	189
2f909c8d	190	if (fDebug==2)
c13b5a7c	191	Info("CreateGeometry","rXU0 = %f, %f\n", envelopA[5], envelopA[6]);
	192
	193	// Create mini-envelopes which will contain the Tower scintillator-Lead-scintillator-lead (XU1 -> XU9)
	194
	195	Float_t tseg = geom->GetFullSintThick()+geom->GetPbRadThick(); // thickness of scintillator+Pb
	196
f590bb15	197	Int_t i ;
f590bb15	198	for (i = 1; i < ((geom->GetNLayers()-2)/2) + 1 ; i++ ){
a1469a24	199	label = "XU" ;
a1469a24	200	label += i ;
c13b5a7c	201	envelopA[5] = envelopA[6] ; // rmin at z1
	202	envelopA[4] = geom->ZFromEtaR(envelopA[5],
	203	geom->GetArm1EtaMin()); // z coordinate 1
	204	envelopA[7] = geom->ZFromEtaR(envelopA[5],
	205	geom->GetArm1EtaMax()); // z coordinate 2
	206	envelopA[6] = envelopA[5] + 2 * tseg ; // rmax at z1
	207	envelopA[8] = envelopA[5] ; // radii are the same.
	208	envelopA[9] = envelopA[6] ; // radii are the same.
	209
	210	gMC->Gsvolu(label.Data(), "PGON", idtmed[1599], envelopA, 10);// Polygone filled with air
a1469a24	211
c13b5a7c	212	// Position XUi in XEN1
c13b5a7c	213
a1469a24	214	gMC->Gspos(label.Data(), 1, "XEN1", 0.0, 0.0, 0.0, idrotm, "ONLY") ;
c13b5a7c	215
2f909c8d	216	if (fDebug==2)
c13b5a7c	217	Info("CreateGeometry","rXEN%d = %f, %f\n", i, envelopA[5], envelopA[6]);
c13b5a7c	218
a1469a24	219	} // end i
f590bb15	220
c13b5a7c	221
	222	// Create one mini-envelope which will contain the last Tower scintillator (XU(nlayers-1)/2)
	223
f590bb15	224	tseg = geom->GetFullSintThick() ;
	225	label = "XU" ;
	226	label += i ;
c13b5a7c	227	envelopA[5] = envelopA[6] ; // rmin at z1
	228	envelopA[4] = geom->ZFromEtaR(envelopA[5],
	229	geom->GetArm1EtaMin()); // z coordinate 1
	230	envelopA[7] = geom->ZFromEtaR(envelopA[5],
	231	geom->GetArm1EtaMax()); // z coordinate 2
	232	envelopA[6] = envelopA[5] + tseg ; // rmax at z1
	233	envelopA[8] = envelopA[5] ; // radii are the same.
	234	envelopA[9] = envelopA[6] ; // radii are the same.
	235
	236	gMC->Gsvolu(label.Data(), "PGON", idtmed[1599], envelopA, 10); // Polygone filled with air
	237
	238	// Position XU10 in XEN1
	239
f590bb15	240	gMC->Gspos(label.Data(), 1, "XEN1", 0.0, 0.0, 0.0, idrotm, "ONLY") ;
f590bb15	241
2f909c8d	242	if (fDebug==2)
2f909c8d	243	Info("CreateGeometry","rXEN%d = %f, %f\n", i, envelopA[5], envelopA[6]);
f590bb15	244
a1469a24	245	// Create the shapes of active material (LEAD/Aluminium/Scintillator)
a1469a24	246	// to be placed
ffa6d63b	247	Float_t envelopB[10]; // First Layer of Aluminium
ffa6d63b	248	Float_t envelopC[10]; // Scintillator Layers
a1469a24	249	Float_t envelopD[10]; // Lead Layers
a1469a24	250
c13b5a7c	251	envelopC[0] = envelopD[0] = envelopB[0] = envelopA[0] ; // starting position in Phi
	252	envelopC[1] = envelopD[1] = envelopB[1] = envelopA[1] ; // angular range in phi
	253	envelopC[2] = envelopD[2] = envelopB[2] = envelopA[2] ; // number of sections in Phi
	254	envelopD[3] = envelopC[3] = envelopB[3] = envelopA[3] ; // 2 z coordinates
a1469a24	255
c4edd8cd	256	envelopB[4] = geom->ZFromEtaR(geom->GetEnvelop(0),
c13b5a7c	257	geom->GetArm1EtaMin()); // z co-ordinate 1
	258	envelopB[5] = geom->GetEnvelop(0) ; // rmin at z1
	259	envelopB[6] = envelopB[5] + geom->GetAlFrontThickness();// rmax at z1
c4edd8cd	260	envelopB[7] = geom->ZFromEtaR(geom->GetEnvelop(0),
c13b5a7c	261	geom->GetArm1EtaMax()); // z co-ordinate 2
	262	envelopB[8] = envelopB[5] ; // radii are the same.
	263	envelopB[9] = envelopB[6] ; // radii are the same.
ffa6d63b	264
c13b5a7c	265	// Define active volumes completely
	266
	267	gMC->Gsvolu("XALU", "PGON", idtmed[1602], envelopB, 10); // PGON filled with Al
	268
	269	gMC->Gspos("XALU", 1, "XEN1", 0.0, 0.0, 0.0 , idrotm, "ONLY") ; // Position Aluminium Layer in XEN1
a1469a24	270
c13b5a7c	271	gMC->Gsvolu("XPST", "PGON", idtmed[1601], dum, 0); // PGON filled with Scintillator (shape to be defined by GSPOSP)
	272
	273	gMC->Gsvolu("XPBX", "PGON", idtmed[1600], dum, 0); // PGON filled with Lead (shape to be defined by GSPOSP)
	274
	275	gMC->Gsdvn("XPHI", "XPST", geom->GetNPhi(), 2); // Divide eta section of scintillators into phi segments.
	276
	277	// Position alternatively scintillator and Lead Layers in XUi.
a1469a24	278
c13b5a7c	279	envelopD[6] = envelopB[6] + geom->GetGap2Active() ;// gap between Al layer and XU0
b13bbe81	280
05a92d59	281	for (int i = 0; i < geom->GetNLayers() ; i++ ){
a1469a24	282	label = "XU" ;
f590bb15	283	label += static_cast<Int_t> (i/2) ; // we will place two layers (i = one layer) in each mini envelope)
09641ef5	284	envelopC[5] = envelopD[6] ; //rmin
05a92d59	285	envelopC[6] = envelopD[6] + ((i > 1) ? geom->GetFullSintThick() :
05a92d59	286	geom->GetPreSintThick());//rmax larger for first two layers (preshower)
b13bbe81	287	envelopC[8] = envelopD[6] ; //rmin
05a92d59	288	envelopC[9] = envelopD[6] + ((i > 1 ) ? geom->GetFullSintThick() :
	289	geom->GetPreSintThick());//rmax larger for first two layers (preshower)
	290	for (int j =0; j < (geom->GetNEta()) ; j++){
	291	etamin = geom->GetArm1EtaMin()+
	292	(j*geom->GetDeltaEta());
	293	etamax = geom->GetArm1EtaMin()+
	294	((j+1)*geom->GetDeltaEta());
	295	envelopC[4] = geom->ZFromEtaR(envelopD[6],etamin); //z begin
	296	envelopC[7] = geom->ZFromEtaR(envelopD[6],etamax);// z end
f590bb15	297
f590bb15	298	gMC->Gsposp("XPST",1+j+i*(geom->GetNEta()), label.Data(),
ffa6d63b	299	0.0, 0.0, 0.0 , idrotm, "ONLY", envelopC, 10); // Position and define layer
b13bbe81	300	} // end for j
a1469a24	301
c13b5a7c	302	if (i < (geom->GetNLayers()-1)){ // except for the last XU which contains only one scintillator layer
a1469a24	303	envelopD[5] = envelopC[6] ; //rmin
05a92d59	304	envelopD[6] = envelopC[6] + geom->GetPbRadThick(); //rmax
b13bbe81	305	envelopD[8] = envelopC[6] ; //rmin
05a92d59	306	envelopD[9] = envelopC[6] + geom->GetPbRadThick(); //rmax
	307	for (int j =0; j < (geom->GetNEta()) ; j++){
	308	etamin = geom->GetArm1EtaMin()+
	309	(j*geom->GetDeltaEta());
	310	etamax = geom->GetArm1EtaMin()+
	311	((j+1)*geom->GetDeltaEta());
	312	envelopD[4] = geom->ZFromEtaR(envelopC[6],etamin);//z begin
	313	envelopD[7] = geom->ZFromEtaR(envelopC[6],etamax);// z end
a1469a24	314
a1469a24	315	// Position and Define Layer
f590bb15	316
f590bb15	317	gMC->Gsposp("XPBX",1+j+i*(geom->GetNEta()), label.Data(),
a1469a24	318	0.0, 0.0, 0.0 , idrotm, "ONLY", envelopD, 10);
b13bbe81	319	} // end for j
b13bbe81	320	} // end if i
61e0abb5	321	} // for i
2012850d	322	}
a1469a24	323
b13bbe81	324	//______________________________________________________________________
05a92d59	325	void AliEMCALv0::Init(void)
05a92d59	326	{
b13bbe81	327	// Just prints an information message
9859bfc0	328
	329	if(fDebug) {
	330	TString message("\n") ;
	331	message += "*****************************************" ;
05a92d59	332
b13bbe81	333	// Here the EMCAL initialisation code (if any!)
9859bfc0	334
05a92d59	335	AliEMCALGeometry * geom = GetGeometry() ;
9859bfc0	336
	337	if (geom!=0) {
	338	message += "AliEMCAL " ;
	339	message += Version() ;
	340	message += "EMCAL geometry intialized for " ;
	341	message += geom->GetName() ;
	342	}
	343	else {
	344	message += "AliEMCAL " ;
	345	message += Version() ;
	346	message += "EMCAL geometry initialization failed !" ;
05a92d59	347	}
9859bfc0	348	message += "*****************************************" ;
	349	Info("Init", message.Data() ) ;
	350	}
2012850d	351	}