/**************************************************************************
+
* 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"
+
//#include "Tstring.h"
+
+
// --- Standard library ---
+
+
#include <stdio.h>
+
#include <string.h>
+
#include <stdlib.h>
+
#include <strstream.h>
+
#include <iostream.h>
+
+
// --- AliRoot header files ---
+
+
#include "AliEMCALv0.h"
+
#include "AliEMCALGeometry.h"
+
#include "AliConst.h"
+
#include "AliRun.h"
+
#include "AliMC.h"
+
+
ClassImp(AliEMCALv0)
+
+
//______________________________________________________________________
+
AliEMCALv0::AliEMCALv0(const char *name, const char *title):
+
AliEMCAL(name,title){
+
// Standard Constructor
+
+
if (strcmp(GetTitle(),"") != 0 )
+
fGeom = AliEMCALGeometry::GetInstance(GetTitle(), "") ;
+
+
}
+
//______________________________________________________________________
+
void AliEMCALv0::BuildGeometry(){
+
// Display Geometry for display.C
+
+
const Int_t kColorArm1 = kBlue ;
+
+
// Difine the shape of the Calorimeter
+
+
new TTUBS("Envelop1", "Tubs that contains arm 1", "void",
+
fGeom->GetEnvelop(0), // rmin
+
fGeom->GetEnvelop(1) +30 , // rmax
+
fGeom->GetEnvelop(2)/2.0, // half length in Z
+
fGeom->GetArm1PhiMin(), // minimun phi angle
+
fGeom->GetArm1PhiMax() // maximun phi angle
+
);
+
// Place the Node
+
TNode * envelop1node = new TNode("Envelop1", "Arm1 Envelop", "Envelop1") ;
+
envelop1node->SetLineColor(kColorArm1) ;
+
fNodes->Add(envelop1node) ;
+
}
+
//______________________________________________________________________
+
void AliEMCALv0::CreateGeometry(){
+
// Create the EMCAL geometry for Geant
- AliEMCALv0 *emcaltmp = (AliEMCALv0*)gAlice->GetModule("EMCAL") ;
+ Float_t etamin,etamax;
+
+
+
+ if(fGeom->IsInitialized()){
+
+ Error("CreateGeometry","EMCAL Geometry class has not been set up.");
- if ( emcaltmp == NULL ) {
- Warning("CreateGeometry","detector not found!");
- return;
} // end if
+
// Get pointer to the array containing media indices
+
Int_t *idtmed = fIdtmed->GetArray() - 1599 ;
+
+
// Create an Envelope within which to place the Detector
+
- Float_t envelopA[5] ;
- envelopA[0] = fGeom->GetEnvelop(0) ; // rmin
- envelopA[1] = fGeom->GetEnvelop(1) + 30 ; // rmax
- envelopA[2] = fGeom->GetEnvelop(2) / 2.0 ; // dz
- envelopA[3] = fGeom->GetArm1PhiMin() ; // minimun phi angle
- envelopA[4] = fGeom->GetArm1PhiMax() ; // maximun phi angle
-
-
- // create XEN1
+
+ Float_t envelopA[5];
+
+ envelopA[0] = fGeom->GetEnvelop(0); // rmin
+
+ envelopA[1] = fGeom->GetEnvelop(1); // rmax
+
+ envelopA[2] = fGeom->GetEnvelop(2)/2.0; // dz
+
+ envelopA[3] = fGeom->GetArm1PhiMin(); // minimun phi angle
+
+ envelopA[4] = fGeom->GetArm1PhiMax(); // maximun phi angle
+
+
+
+ // create XEN1
+
gMC->Gsvolu("XEN1", "TUBS ", idtmed[1599], envelopA, 5) ; //filled with air
-
+
+
+
Int_t idrotm = 1;
+
AliMatrix(idrotm, 90.0, 0., 90.0, 90.0, 0.0, 0.0) ;
- // Position the Envelope in Alice
+
+
+ // Position the EMCAL Mother Volume in Alice
+
gMC->Gspos("XEN1", 1, "ALIC", 0.0, 0.0, 0.0, idrotm, "ONLY") ;
- envelopA[1] =envelopA[0] + fGeom->GetGap2Active();
+
+
+
+ //
+
TString label = "XU0";
- envelopA[0] = envelopA[1]+ 3.18 ; //rmin Start mini envelopes after the aluminium layer
- envelopA[1] = envelopA[0] + 2.2 ; //rmax larger for first two layers (preshower)
- gMC->Gsvolu(label.Data(), "TUBS ", idtmed[1599], envelopA, 5) ; //filled with air
- gMC->Gspos(label.Data(), 1, "XEN1", 0.0, 0.0, 0.0, idrotm, "ONLY") ; // Place XU0 in to XEN1
- for (int i = 1; i < ((fGeom->GetNLayers()-1)/2) + 1 ; i++ ){
- label = "XU" ;
- label += i ;
-
- envelopA[0] = envelopA[1] ; //rmin
- envelopA[1] = envelopA[0] + 2.0 ; //rmax
+ //rmin Start mini envelopes after the aluminium layer
- gMC->Gsvolu(label.Data(), "TUBS ", idtmed[1599], envelopA, 5) ; //filled with air
- gMC->Gspos(label.Data(), 1, "XEN1", 0.0, 0.0, 0.0, idrotm, "ONLY") ;
+ envelopA[0] = fGeom->GetEnvelop(0) + fGeom->GetGap2Active() +
- } // end i
+ fGeom->GetAlFrontThickness();
-
+ //rmax larger for first two layers (preshower);
- // Create the shapes of active material (LEAD/Aluminium/Scintillator) to be placed
+ Float_t tseg = fGeom->GetPreSintThick()+fGeom->GetPbRadThick();
+
+ envelopA[1] = envelopA[0] + 2.0*tseg;
+
+ envelopA[2] = fGeom->GetEnvelop(2)/2.0; // dz
+
+ envelopA[3] = fGeom->GetArm1PhiMin(); // minimun phi angle
+
+ envelopA[4] = fGeom->GetArm1PhiMax(); // maximun phi angle
+
+ //filled with air
+
+ gMC->Gsvolu(label.Data(), "TUBS ", idtmed[1599], envelopA, 5);
+
+ // Place XU0 in to XEN1
+
+ gMC->Gspos(label.Data(), 1, "XEN1", 0.0, 0.0, 0.0, idrotm, "ONLY");
+
+
+
+ tseg = fGeom->GetFullSintThick()+fGeom->GetPbRadThick();
+
+ for (int i = 1; i < ((fGeom->GetNLayers()-1)/2) + 1 ; i++ ){
+
+ label = "XU" ;
+
+ label += i ;
+
+ envelopA[0] = envelopA[1]; //rmin
+
+ envelopA[1] = envelopA[0] + 2.0*tseg; //rmax
+
+ //filled with air
+
+ gMC->Gsvolu(label.Data(), "TUBS ", idtmed[1599], envelopA, 5);
+
+ gMC->Gspos(label.Data(), 1, "XEN1", 0.0, 0.0, 0.0, idrotm, "ONLY") ;
+
+ } // end i
+
+
+
+ // 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] = fGeom->GetArm1PhiMin(); //starting position in Phi
- envelopC[1] = envelopD[1] = envelopB[1] = fGeom->GetArm1PhiMax() - // Angular size of the Detector in Phi
- fGeom->GetArm1PhiMin();
- envelopC[2] = envelopD[2] = envelopB[2] = fGeom->GetNPhi() ; // Number of Section in Phi
- envelopD[3] = envelopC[3] = envelopB[3] = 2; // each section will be passed 2 z coordinates
-
- envelopB[4] = (fGeom->GetEnvelop(0) + fGeom->GetGap2Active()) /
- (tan(2*atan(exp(0.7)))) ; // z co-ordinate 1
+
+ Float_t envelopD[10]; // Lead Layers
+
+ //starting position in Phi
+
+ envelopC[0] = envelopD[0] = envelopB[0] = fGeom->GetArm1PhiMin();
+
+ // Angular size of the Detector in Phi
+
+ envelopB[1] = fGeom->GetArm1PhiMax() - fGeom->GetArm1PhiMin();
+
+ envelopC[1] = envelopD[1] = envelopB[1];
+
+ // Number of Section in Phi
+
+ envelopC[2] = envelopD[2] = envelopB[2] = fGeom->GetNPhi();
+
+ // each section will be passed 2 z coordinates
+
+ envelopD[3] = envelopC[3] = envelopB[3] = 2;
+
+ envelopB[4] = fGeom->ZFromEtaR(fGeom->GetEnvelop(0)+fGeom->GetGap2Active(),
+
+ fGeom->GetArm1EtaMin());// z co-ordinate 1
+
envelopB[5] = fGeom->GetEnvelop(0) + fGeom->GetGap2Active(); //rmin at z1
- envelopD[6] = envelopB[6] = envelopB[5] + 3.18; //rmax at z1
- envelopB[7] = (fGeom->GetEnvelop(0) + fGeom->GetGap2Active()) /
- (tan(2*atan(exp(-0.7)))) ; // z co-ordinate 2
+
+ envelopB[6] = envelopB[5] + fGeom->GetAlFrontThickness();//rmax at z1
+
+ envelopD[6] = envelopB[6];
+
+ envelopB[7] =fGeom->ZFromEtaR(fGeom->GetEnvelop(0)+fGeom->GetGap2Active(),
+
+ fGeom->GetArm1EtaMax()); // z co-ordinate 2
+
envelopB[8] = envelopB[5] ; //
+
envelopB[9] = envelopB[6] ; // radii are the same.
+
+
// filled shapes wit hactive material
- gMC->Gsvolu("XALU", "PGON", idtmed[1602], envelopB, 10); // Define Aluminium volume completely
- gMC->Gsvolu("XPST", "PGON", idtmed[1601], 0, 0) ; // The polystyrene layers will be defined when placed
- gMC->Gsvolu("XPBX", "PGON", idtmed[1600], 0, 0) ; // as will the lead layers
- gMC->Gsdvn("XPHI", "XPST", fGeom->GetNPhi(), 2) ; // Dividind eta polystyrene divisions into phi segments.
-
+
+ // Define Aluminium volume completely
+
+ gMC->Gsvolu("XALU", "PGON", idtmed[1602], envelopB, 10);
+
+ // The polystyrene layers will be defined when placed
+
+ gMC->Gsvolu("XPST", "PGON", idtmed[1601], 0, 0);
+
+ gMC->Gsvolu("XPBX", "PGON", idtmed[1600], 0, 0);// as will the lead layers
+
+ // Dividind eta polystyrene divisions into phi segments.
+
+ gMC->Gsdvn("XPHI", "XPST", fGeom->GetNPhi(), 2);
+
// Position Aluminium Layer in the Envelope
+
gMC->Gspos("XALU", 1, "XEN1", 0.0, 0.0, 0.0 , idrotm, "ONLY") ;
-// The loop below places the scintillator in Lead Layers alternately.
-
+
+
+ // The loop below places the scintillator in Lead Layers alternately.
+
for (int i = 0; i < fGeom->GetNLayers() ; i++ ){
- label = "XU" ;
-
+ label = "XU" ;
+
label += (int) 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) ? 0.5 : 0.6) ; //rmax larger for first two layers (preshower)
+
+ envelopC[6] = envelopD[6] + ((i > 1) ? fGeom->GetFullSintThick() :
+
+ fGeom->GetPreSintThick());//rmax larger for first two layers (preshower)
+
envelopC[8] = envelopD[6] ; //rmin
- envelopC[9] = envelopD[6] + ((i > 1 ) ? 0.5 : 0.6) ; //rmax larger for first two layers (preshower)
- for (int j =0; j < (fGeom->GetNZ()) ; j++){
- envelopC[4] = envelopD[6]/tan(2*atan(exp(0.7-(j*1.4/
- (fGeom->GetNZ()))))); //z begin
- envelopC[7] = envelopD[6]/tan(2*atan(exp(0.7-((j+1)*1.4/
- (fGeom->GetNZ()))))); // z end
- gMC->Gsposp("XPST",1+j+i*(fGeom->GetNZ()), label.Data(), // should be used but there's a weird crash above i = 18,
+
+ envelopC[9] = envelopD[6] + ((i > 1 ) ? fGeom->GetFullSintThick() :
+
+ fGeom->GetPreSintThick());//rmax larger for first two layers (preshower)
+
+ for (int j =0; j < (fGeom->GetNEta()) ; j++){
+
+ etamin = fGeom->GetArm1EtaMin()+
+
+ (j*fGeom->GetDeltaEta()/(fGeom->GetNEta()));
+
+ etamax = fGeom->GetArm1EtaMin()+
+
+ ((j+1)*fGeom->GetDeltaEta()/(fGeom->GetNEta()));
+
+ envelopC[4] = fGeom->ZFromEtaR(envelopD[6],etamin); //z begin
+
+ envelopC[7] = fGeom->ZFromEtaR(envelopD[6],etamax);// z end
+
+ gMC->Gsposp("XPST",1+j+i*(fGeom->GetNEta()), label.Data(), // should be used but there's a weird crash above i = 18,
+
0.0, 0.0, 0.0 , idrotm, "ONLY", envelopC, 10); // Position and define layer
+
} // end for j
+
if (i < (fGeom->GetNLayers()-1)){
-
- envelopD[5] = envelopC[6] ; //rmin
- envelopD[6] = envelopC[6] + 0.5; //rmax
+
+ envelopD[5] = envelopC[6] ; //rmin
+
+ envelopD[6] = envelopC[6] + fGeom->GetPbRadThick(); //rmax
+
envelopD[8] = envelopC[6] ; //rmin
- envelopD[9] = envelopC[6] + 0.5; //rmax
- for (int j =0; j < (fGeom->GetNZ()) ; j++){
- envelopD[4] = envelopC[6]/tan(2*atan(exp(0.7-(j*1.4/
- (fGeom->GetNZ()))))); // z begin
- envelopD[7] = envelopC[6]/tan(2*atan(exp(0.7-((j+1)*1.4/
- (fGeom->GetNZ()))))); // z end
- gMC->Gsposp("XPBX",1+ j+i*(fGeom->GetNZ()), label.Data(),
- 0.0, 0.0, 0.0 , idrotm, "ONLY", envelopD, 10) ; // Position and Define Layer
+
+ envelopD[9] = envelopC[6] + fGeom->GetPbRadThick(); //rmax
+
+ for (int j =0; j < (fGeom->GetNEta()) ; j++){
+
+ etamin = fGeom->GetArm1EtaMin()+
+
+ (j*fGeom->GetDeltaEta()/(fGeom->GetNEta()));
+
+ etamax = fGeom->GetArm1EtaMin()+
+
+ ((j+1)*fGeom->GetDeltaEta()/(fGeom->GetNEta()));
+
+ envelopD[4] = fGeom->ZFromEtaR(envelopC[6],etamin);//z begin
+
+ envelopD[7] = fGeom->ZFromEtaR(envelopC[6],etamax);// z end
+
+ // Position and Define Layer
+
+ gMC->Gsposp("XPBX",1+ j+i*(fGeom->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
+
Int_t i;
+
+
cout << endl;
+
for(i=0;i<35;i++) cout <<"*";
+
cout << " EMCAL_INIT ";
+
for(i=0;i<35;i++) cout << "*";
+
cout << endl;
+
+
// Here the EMCAL initialisation code (if any!)
+
+
if (fGeom!=0)
+
cout << "AliEMCAL" << Version() << " : EMCAL geometry intialized for "
+
<< fGeom->GetName() << endl ;
+
else
+
cout << "AliEMCAL" << Version() <<
+
" : EMCAL geometry initialization failed !" << endl ;
+
for(i=0;i<80;i++) printf("*");
+
cout << endl;
+
}
+
git://git.uio.no / u / mrichter / AliRoot.git / commitdiff